DOCIBIE/T RESUME/
"ED 258 568 IR 011 723
TITI International Comiumique. . . About Infcirmation, People, Places, Things-. larinting Processes Issue
. S INSTITUTION Department of Agriculture, Waslaington, D.C."; Peace .Coirps, Washington, DC. Informatiom Collection and Exchange Div.
PUB DATE Sep 68 . . pappm 13p.p Produced by International Agricultural Development Service: 11TYPE Guides - General (050)
EDRS PRICE NFO1 /PC01 Plus Postage. / It DESCRIPTORS Instructional Materials; *Material Development; V *Printing; *Production Techniques; *Reprography; *Visual Aids IDENTIFIERS #ectograph Proces0; *Silk Screen Printing
. # . ABSTRACT - Focusing on the production.ind utilization of printing processes in constructing effectiVe visuals for teaching, this bulletin,containi articles on the silk screening stencil process, use of a similar processwith a portable mimeograph, and the hectograph process. The first article lists equipment needed to make a silk screen, steps inbuilding the printing outfit,'three methods for constructing stencils, recipes for film adherent liquid and water . soluble' adherent liquid, directions for paint application, screen cleaning procedures, and drying of finished silk screencprints, including instructions for building a drying rack. The second article illustrates use of the portable hand-operated mimeograph, and the third describes a hectograph and gives instructions for its .
construction and use. The final article briefly describes more - expensive procesies, i.e., typeset,.intiglio, planography4toffset), electrostatography.(xerography), and diazo. (.78)
*********************************************************************** * Reproductions supplied by EDRS are the best that can be made * * from the original document. . * *********************************************************************** .4
BEST COPYMIME' P.-8B Printing Processes Issue September 1968 ; national moque .0 0.-AfxNekiKcilia4C1:114,11o124.,
International Agricultural DevelopmentService U.S. Department of Agribluture
MARE ATTRACTIVE. VISUALS IIITH SILK% SCREEN -
Colorful, good quality, well-designed Down the middle of the frame, on the visuals will call attention to your projects sides eiat contact the base, make a groove and.make your teaching more effective: An 1/0 finch (4 am.) wide and 3/8,inch (10=6, easy, inexpensive process for making these deep.
I colorful posters, leaflet covers, flip charts,. flash cards, and similar objects, is silk screen.
. Essentially, silk screening is.a stencil process whereby ink or paint is. applied through a stencil Ontoasurface. to receive the print. Yot?..can use it pni. paper, Cards,' plastic, glasS, or metal, and on curved surfaces as well As flat.
The equipment you need'boneists of:
--A base tv support the paper or cardboard to be printed. - -A silk - cornered framehinged to the base, 4-Sllk with rempvable pin hinges. --A paper or plastic stencil fixed to the side of the silk that contacts the.under side of the screen. CROSS SECTION OF FRAME SHOWING NOTCH FOR CORD. a - -A6q.leegee with a rubber edge to spread A the ink or.paint oVer, the silk screen. --Ink or Paint. Lay the 41k evenly over the grooved STEPS' IN MAKING-THE PRINTING OUTFIT,' side of the frame and attach it in the following manner: Place a'cord on the Make a frame from smooth, non-werp- ilk directly over the groove'. Tap it ightly with a hammer to force the cord ir* firth wood, and hinge this to.e. . !slightly larger base made from the same and silk into the groove." To elks the quality material.' Use only hinges with silk groper tension, use a wooden wedge removable pins so the frame can be taken to drive the cord little by litge off for cleaning( ward the bottom of the Keep witDEPARTMENT DP EDUCATION a NATIONAL resTrTun OF ettuc,Aucird EDUCATIONAL RESOURCES INFORMATION CENTER (ERIC! Ilk The documenthes beenft/produced as wowed from TheDemon or orgenlastion oncenauno Reprinted by Peace Corps/Information Calectipm""Mewchanges here been mods to imordve & Exchange with the permission USDA. tooroduction motor Pointe of visit( orooiniono Rated in this docu- 2 ment do not noortorrily rent officio! ND Derision or poky*. THREE POPULAR METHODS FCRMAKING STENCILS
For simple work, designsmay be cut . from paper and.thepaper stencil adhered to thescreen (the silk).
2.- Stencils forvery detailed desig6,or illustrationsare usUally made phOta.graphie.-. .aaly*.t This process condistsessentially of exposing transparentposi-pre copy to light-sensitive gelatin film. Portions of the gelatin protected frot lightduring exposure remain soluble in water while areas exposed becomeinsoluable. Unexposed areas are then washed"awayiind the remain-' ing gelatin is adhered to themesh ortlie scree* forminga printing stepcil.
light source
r Attach the silk to the Aso.by using a cord. To giver the silk theproper tension, use a wooden 'fledge to drive the cord and the silk into tb4 plate glass groove, photo positive sensitized film Ai-- rubber mitt,
going' around the entire fraz during the 3. F most situatio43, you will prolyibly operation. To test the ten'sion drop -a want 'o use the knife -cut film system. quarter or similar coin (20 to 25mm. in, The ea is quite similar to the paper diameter) on the elk fromabout a foot stencil method, except youuse a fi'lm con- high 0 cm.). When the coin will bounce sist, rig of lacquer, acetateor gelatin' to almost the same height fromwhich it coating adhe'red to' a waxedpaper or was dropped, the silk will have .the proper tension. -YOu must then dIscgntinue scteen pushing tihe cord any further because film greater tension might tear the sIlk.
. Thumb tacks, may be need instead of the Cord, but this makes it difficultto stretch the silk evenly andyou kiamage; the frame when you change pieces(if silk. 3
.4 plastic backing. By knife-cutting this Here are 2 recipes for making solvents in
fiIi you can prepare more intricate , case these are not readily available stencils than you can prepare with paper. commercially..
SIPS FOR USING .THE KNIFE -CUT FILM METHOD Yil Adherent Liquid .
Since this ip the method you will 1 gallon paint thinner use in.post situations, probably, let's 2 teaspoons castor oil look at it in more detail. There are For slower action, increase amount of basically 4 steps involved. castor oil; decrease for faster re- sults. Overdoing will cause failure. 4)Cut the film with a knife to form the design to be printed. Mater Soluble Adherent Liquid cut -sections to be printed film' 1 gallon Methylated Alcohol backing 2 teaspoons sugar pap& Amount of sugar can be increas6d to- slow action but may damageistencil The film is trans- during process. parent, so you can place it over a copy of your design in order to have a pattern to, follow when you are cutting the film. 4) When drytpeel away the backing paper. Take care not to cut through the backing paper or plastic, though. As you cut the silk screen areas to be printed, peel them away from film the backing paper and discard them. backing
paper .
After drying, you can peelaway the paper or plastic backing, leaving the desired film stencil adhered to thescreen.
filmbeing . removed from screen theletter 'W. thefilm hay been removed frame from the letter '7" .screen with 4) Soften the film with a solvent and . Aim adhered press.it into the mesh of the screen. printing
. ,surface silk screen film base. backing paper
Wlif.; all printing portions have been peel- ed away place the screen over the film illustratvl and moisten the film through the, screen with just enough solvent to soften tt# film r-ausing it to become 0 Print the copies you want. After stifilcy. he careful not. -Lc, use too much the stencil is completed, place the solvent, as this would dissolve the film. screen over the_materiAl to be printed. t
Pripting with Mix starch with enough cold water a squeegee to make a smooth paste.' Add boiling water and coal until glossy. Stir in soap flakes while mixture iswarm. ,When cool, add coloring such as: tempdra powder, food color, ink or a watAr'soluble dye.
f) Recipe #2
Cup cornstarch cups water '1/8 cup soapflakes
Bring water to/.a boil. Mix corn- ;;;Ba !...!.;7;...+*..-;:*+.%.';**- . silk starch 4ith a small amount of cold water and stir the two together. Bring to a flint boil: and stir until thickened., Add soap- printing flakes while warm. Color. surface Recipe /13
Put a couple spoonful's of paint In a Dissolve - cup cornstarch in line across one end of the screen. ghe 3/4 cup cold water paint should be like auto transmission Dissolve 1 eEnvelopb gelat grease, not thin enough to fall through 11 tsblespoOn, unflavor ) in the screen on its own accord. /Use a 1 cup cold water squeegee (stiff rubber blade) to draw t ink across the screen, foreing it through Heat 2 cups of water, pour in cow- the open areas in thesterkil and onto starch. Add dissolved gelatin. Boilli% .the surface to be printed:Lift,the and stir until'thickened.' Cool and add - cup soapflakes. Color. screen. Remove theprint and replace It with the next piece to be printed.- Pull the paint back the other way fp the next print. Place an amount 2 nt on the screen which, together .with'it'right SOMt OBSERVATIONS blade pressure, will produce an acceptabler print with one stroke of the squeegee. Paints that were colored with . If you are primting on an extremely powdered tempera are more brilliant than absorbent surface, such as clay- coated those colored with food colors or ink. stock or bl tter type paper, it will Presumably many types of water soluble help to use ome binding 'varnish in fast dyes could be used. drying poste inks. u Either oil soluble or water bast Recipe #2 seems quite lumpy but this paints can be used; but water'basehas does not affect the printing quality. easier cleanup. Mrs. pen4amtn COx, VITA participant, lists Ihe.6,' .trng recipes When stored ln jars with tilt fit- , for making silk scrteenlki MA, lids, these paints should havea p .., shelf life of several months. a Recipe il I One or two teaspoons of glycerine 4 cup hinit starch (not instant) added to any of the abov& recipes would 1* cup boiling water rdake the paint somewhat easier to use-. cup soap flakes This is not. necessary.- 4 \ C. N
Never let dried particles of pain (f') Once registered, carefully "hold fall on the screen'er get.mixed into th the first printing sample' in position, 1 paint as they may puncture silk during ' and r move the wax paper. printing, (A small hole in silk may' be 9 , 2.---.---- repaired with a small drop of shellac4 ,(g) Tape new registration guides on These recipes have been tried and ;two bides of the first printing sample. found effective in a temperate climate. (h) Now 'Proceed. to piint the second' color. Subsequent colors are printed by REGISTRATION returrang to Step (b). A'two-color effect.is possible by CLEAN THE SCREEN WHEN FINISHED using colored paper with colored ink', of Immediately remove dnd save surplus But for additional co?ors, more. . courses. paint with a small square of.caodboard. than one stencil must be used, and reg- Then wash the screen with water if you istration becomes very important. Regii- - are using a water base paint; or clean tration i matching the stencil and it with kerosene or thelappropriate printed page so that each color falls' exactly wheritis:wanted.JOITA partic4- paint solvent if you are using oil paints.. When cleaning rags stop picking up color, pant John Tomlinson offers these suggestions the screen may be stored for future use.
for achieving proper registration: . If no further use is to be made of the screen, apply the qppropriiate solvent to Print the first color using (a) remove the stencil and.then.umshwith registration guides.) Registration guides soap and water and a soft flat brush. are,thin-pieces of cardboard or several layers of tape placed on the base of. the DRYING YOUR SILK SCREENED PRINTS silk screen to show you where to put the ceep guides thin, paper to be printed. Silk screening'is good,for 25 to 200 as thick guides can cause silk tobreak copies, but drying these cap sometimes be when the squeegee blade presses the silk a problem. This is especially true it against' the guides. temperature or humidity influence drying speed. One of th9 dasiest ways to dry your U' work is to lay the copies on a table or Papei. the floor until they areidry. This is to be cheap too, ifyou have plenty of space Two 'pieces of . printed and don't need the area forother work. masking tape But this usually isn't the case. Besides, used as guides there's the ever-present hazard of a stiff breeze messing things up. Cleanliness considerations also discourage this practice. (b) Tape a piece of wax or thin trans- VITA participant
( lucent paper on one edge of the baseboard John Tomlinson supplies beneath the second screen 1500 be printed. this diagram of adrying (c) Print a trail image of the second rack that pccupiee screen onto this paper. nominal floor space, is easilyrput together, and (d) Raise the screen. costs yery little to. make. It coftsists of 2 (e) Slide the sample of the first inch x 2 inch upright 4 :printing into position beneath the taped pieces of lumber, with 1 inch x 1 inch wax paper untilthe desired registration cross bars about an inch apart. with the firstprinting is achieved..
, 5 Hanging the copies, as shown in the picture, could also be a good inexpensive solution. Care must be takento"keep ,a breeze from blowing the copies against each other,thbugh, as this couldsmear the paint. --Silk! Screen ideaP from: Or niiation of Ameritan States Ind niversity The tiplier handbook
Jamaican'participantFrank Mitchell, right, demonstrates hia silk screen. skills to his drrdiana Universityin- structor, Mr.Taylor,center,, and a friend. Note .newly-printed posters hung to dry in the background.
=TIE PIRTAILE NAN9OPERATE1 MIMEOGRAPH
The portable hand-operated'mAmeograph -frargie ielowered over it. Ink suchas is similar to the silk- screen process-. Gestetner is rolled on. a separate spread- The stencil is placed under the silk and -ing. surface or inking surface); and -then held there with Scotch Tape or other .ad- the inked rdller is pissed back and forth hesive. Then the paper is set in place on over' thesilkscreen. theprintingarea and the silk screen
fine grade of silk inking surface madeosame or organdy, a bit , material, set in 'lidi9 case :largeron each .Side than inside rubber roller .nieasurementof approximately frame. A 81/2" in width
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prikting surface of hardwood,metal or plate glass, stand and holder smooth and flat. for the roller slightly larger than frame.
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.1 TIE HECTOGIAPH..:A Simple,UsefulDisplicater
The ctograph is one of.thecheap proportions found in the recipe. In- th est and siest methods. for making .50 to case weareusing 4pproximate1y 1 part 100 copsa ortivandrigs or writing. So glue. with two parts water and four parts This relationship should be little.equipment.is needed that you can . glycerin. carry the hectograph on field-trips to maintained. make teaching materials aszou.nepd them.
A" specials ink isuseeto make'a OTHERRECIPES . master copy of the item to be reprbduced; .Two other basic hectographridges. When this master copy is placed face don ,coMe from Guatemala, and a third from on the gelatin surface ofthe hectograph, U.S Peace Corps volunteers in Bolivia. the ink transfers to. the gelatin and then Youmaywant to use th if the ingred- copies can be lifted ..frcaa the gelatin. ientsare morereadilyavailable. Increase quantities to makethe amount 'MAKING A HECTOGRAPH yoli need, but maintain' proportions. Get a shallow Container approximately Recipe #1 9i inches vide, 14 inches long, and -11- inch deep. Many stores have cookie sheets or Glue' 12 grams other cooking utensils that wax*, quite Gelatin '2 grails Prepare a gelatin mixtufb ,Water 7 grams -this container using 66 grams of fish Sugar 2 -grams (or animal) glue, 209 cubic centimeters of glycerin (about one-fifthliter), 130 Recipe cubic centimeters' of warm water (.14 lite)? and 4 ounces oriugar. Break the Gelatin 10,grams glue into small pieces and.put'thom in 40 grams the water for two hours, which vill be .Glycerin 120 grams' efficient' for the glue to soften and Bariu&Sulfate 8grams absorb sufficient water. Place the pan containing thAs.glue and water mixture in- ecipe tihe another larger-pan' with hot water ('to make a double boiler); be careful that 12 sheets of gelatin no additionalwater spills into,the. glue (approx. 31 x 81) pan. Allow the glue tototallEdissolve, Icup sugar stirring constantly. Add theilicerin, liter glycerin stir, and add the sugar. Heat for 20 liter water minutes. When' -the mixture becomes hot, pour into the shallow pan, straining PURCHASE C MAKE HECTOGRAPH INK ft through a piece of thin cloth to re- movehard particles.and anydirt: that)ay Hectograph pencils, typewriter have fallen into the mixture.Use a P" ribbons, carbon paper,;Itinks-are piece of paper to brush away any bubbles manufacturedin various colors.However, , Country, that appear..Set the pan on a completely . if these .are not available in your level table so the gelatinous mixture you can make your own'ink by miming 22 cc will harden with a smooth surface. If alcoholl'14 ccwaterand2grams` Indigo this makes toio much liquid for the con- blue. Other colors can be made by using tainer you ark using, simply reduce the dyes such as saffron (yellow-!orange), and quantity of ingredients, but maintain the green of methyl instead of Indigo blue., a
HOW'TO USE. THE HECTOGRAPH. SPIRIT RR FLUID IECTOMPII PROCESS
Write.br diaw,on a piece of bond . paper, using the specialwhectograph' pencilq, ink or typewriter ribbons.Use Essentially,this is a refineme nt of only inexpensive fotuntain Pens, as hecto- the hectograph prooess just deqdribed. A graph ink will ruili.the pen in a few master copy is made using special carbons, . months. When the ink has dried, wet the pencils or dyes,'witila letteringor drawing gelatin with a slightly warm spongeor done by hand, with stencils,or on the rag. Then remove excess water by blotting typewriter. By use colored carbons, you the surface with-newspaper. Carefully can add color to r work at little extra apply your original, face down, to the cost, and all -era are printedllsimulta,-
gelatin. Use a piece of cardboard to ;. neously (again het* phy-qprit duplica- smooth out all bubbles under the paper. tion is the only profess with this feature). After the original has been in'contact Each master will reproduce onlya limited. with the surface of the gelatin for at number of copies, however, usuaNY less least thirty seconds, remove. it rapidly. than 100. You are now ready to make copies. To make the master for spirit duplica- tion (mug, 'hada, Agag), letteror draw TO MAKE COPIES directlyon. the dull side of the master pheet, with the Alm side of the taste/. I Place a sheet of bond paperon facing the carbon. NOW firm linesand, the gelatin. Rub lightly with a piece eliminate unnecessary details. You can of cardboard to insgre perfect contact. change carbons at any time to adda differ- Then immediately remove the paper. ent color. blepeat until youhave printed the The ,inaster is then placedon the desired number of copies. Time is im- machine. Copy paper As passed between portant, so work rapidly. You will find moistening rollers and then pressed against
that it is easier to remove the copies . the master to pickup a fine layer of the without damaging the'gelatin if you lay carbon or dye thatwas used to make the down paper strips on the gelatin at the master. margins of the printing-surface. You "A low-cost spirit duplicator isan will be able to Produceat least fifty excellent investment, 14berever small copies, and,with care andrepeed, one-' quantities of duplicatedmaterials are hundred. needed'," says Indiana University Audio- Visual Center. CARE FOR THE HECTOGRAPH,
Immediately after removing the r. 00..... final copy, rinse the gelatin with a rag a4ea..40*. and plenty of cold water. Repove the'. bubbles from the surface and store in a Spirit moistening Duplicated copies 'cool place. In-twelve hours the ink will . fluid sink to a loser level, and the Hectograph Moistening will be ready for use. If the Hectograph roller is kept covered and dirt-free, it Will be usable for many publications. If small Impretsion pits from bubbles or scratches appear; or paper if the gelatin is severely damaged, melt in a double-boiler arrangement and pour it impression back into the shallow pan. Forwarding roller roller THE SPIRIT OR FLUID HECTOGRAPH PROCESS ea.
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As you draw or type on the stencil, the coating is pushedaside, exposing the por'ous-tissue. Be careful not to tear 'this tissue ,as you make your design..If you make a mistake, a corrpction fluid quickly coats the tissue again and you can then re-type ermake other changes to correct your efror. The stencil is then placed on -tHe ink cylinder of the machine. As the cylinder rdlls across the paper being printed, ink is squeezed through the porous'tissue and thewritten or drawn material is reproducpd on the paper,. It is possible to pfint in different colors by changing inliand running each color separately. This can get rather complicated and is.not recommended for normal use. Stencils may be used over and over as e., long as they remain in good repndition. easy' way to store them after use is to put them between layers of newspaper. Simone O'Malle, Cameroon, learns to A new electronic process allows you use a spirit duplicator from Eugene Rankin to type your originair on plain paper and of the Indiana University Audio: Visual 0 add line ar'screenedillustrations.by the Center Staff.Spirit duplicationgivet in-, "paste-up" method. This means simplyeut- expensive, quick copies from a master copy ting but illustiations you want and pasting made with specially treated carbon-like them on the original manuscript. The papers. can draw, write or type to "paste -up" is scanned by a moving light
make a master, and various colors can be , source in a specialstencfi-cutting machlm, simultaneously printed on a dingle page if and a stencil is cut by an electrical' different colors are used to makethis master. spark. The electronic stencil.is then run the Same as an-ordinary stencil..
IIINEOGIIpPli.-:Gestetber, Ronec
Mimeograph is one of the most popillar means of duplicating announcei-ente of meetings, examinations for students., and leaflets describing a process, procedure, or ew product, The initial' investment in Mimeographed ipme4,t is small, and it is practical to covet from a operate whether you need twenty copies or Bolivian &ten,- several hundred. - sion Servipe Typing, hand lettAririg, or free hand bulletin. Note drawings can be used on a mimeograph shading-tech- stencil and the finished product is quite niques. nice (see sampliNt the bottom of this Page ). . The mimeograph stencil consists of a porous tissue covered with a material that ink will not pass through. This is usually attached to a protective paper backing.
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water but not the ink. The inked image is transferred from the.plate.to the paper by UM PRINTING PIOCESSES pressure. Equipment *ranges from hand presses to 'fully automatic rotary machines. Plates can be- paper, plastic or metal. .Depending So---4ar we have been discussing print- upon the plate and equipment lige& runs ing methods anyone can use in his-office. can be from a few hundred copies to many To complete this issue on printing_ processes,
thousand. . . we will nowlook briefly at proces'es requiring larger, more costly equipment. Since special training is needed to operate and maintain this, equipment, we will only discuss general chatacteristics1 without detail. I
RELIEF--etterpress, Typeset 4
In relief printing, the ima0 is pro- duced frqm a relief, or raised, surface' Similar to.arUbber etamp or a typewriter key. Rollers deposit ink on the raised c surfaces, paper is pressed against them, and the ink is transferred to the paper. TyTe,is available in a wide variety of sizes and styles. Equipment ranges from simple hand machines to fast automatic rotaryachines. High speed, high, quality, ( t to right) Gezatchew YirgolbEthiopiia, and large-quantity-runs are features of Anthony Anga, Tanzania, Julius Omotehinwa, this process. Colors are printed in sepa4. Nigeria,-Clemence Macha, Tanzania, Jonathan rate runs.. Sokomba, Nigeria, Sadler Jensen and Jonathan Adeka look atoffset press during ;NTAGLIO--Etchings, Engravings& Gravure their training at Indiana University.
qhe'intaglio process prints from &n e image below the surface of the pti Ling Plates (ban' be-made by hand r ELECTROTOCRAPHY--XerograPhY photogIaphicaliy. When printing, e plate 44r wis inked and wiped clean, leaviqg ink in Electrostatography includes all - the depressions. The paper being pi-lilted . processes usingelectrbstatiecharges to then absorbs the ink from these depressions, record and reproduce patterns in a visi4ale giving the copy.. . ,form. Basically, the process cnnsdsts Equipment ranges from simple hand forming a latent ele6trostatic image by machines to rotary presses capable of light rays, making this image visible by running up to 10,nn0 .copies per hour;....JEach the atti-action of a powder and "fixing" the color is run separately. image by a solvent or by heat. The major uses are copying documents and pages of_ PLANoGRAPHY--Offset, Lithography books. and preparing offset masters for printing multiple copies. This process is based on the principle Equipment is -elaborate and quality that grease repells water but holds greasy falls short of photographic processes. Im- ink. An image that will accept greasy ink provements are taking place rapidly, how- is put on the plate either by hand or ever, and it does give a quick way to make photographically. The ,ackground holds copies.
4 l& 11 DIAZO --Tecnifax., °tali& Dye-line to the surface. It is claimed that Woriale7 Board is practically-indestructable. Diazo processes depend 'on the fact that diazonium salts "diazo" can combine Low Cost 161414 TV Protector with a colorless coupler to form a dye. When ultra violet fight strikes a pazo, it Kalart Inc., Plainville,'COn-' is decomposed, and cannot combine to form necticut 06062, U.S.A.,has a new low cost 16 mm TV projectpr for a dye. To make a print, diazo sensitized use in a TV film - material is exposed through a translucent chain. It can be used with an optical Or transparent master. Light passing multiplexor-ofiasa regular 16 mm projector. through the base-destroys the diazo salt. The Model STV-TB projector is "designed Where the material is protected from to meet-the growing demand fora reliable, light by the image on the master dAzo, flexible and moderately priced TV projector salts remain which can be developed to for television distribution systems `which form a dye image. show fttaii in the educatto roadcastings' Several colors are available and industrial aria military transparent, translucent; or opaque bases It -features as stan1ard equipmenta. can be used. This process is particularly, complete solid state circuitry, lamp bright- good for mak prints from large drawings ness controls, optical sound pick-up with
o p t rnpingpaper or cloth, and for making 2 provisions for adding magnetic sound,ark transpftpncies for display or.projection. audio output of 600 ohm impedance, aAtuilt- A.n monitor speaker with volumacontrol and % --Adapted from Indiana University training a 2000 foot reel film capacity. Optional Handouts. featufes are: remote control, magnetic 4 sound playback and.4ifferent lenses* fok filling various T1( AgAikems yeguitements. Basic model lists at-$1,250.00. IF INTEIREST... Portable Cony g. Machine The Casual Compactweighs 12 lbs. and can be carried in 'an attaciecase. This is a low-volume copierthat Provides quick, high quality copies. Wonder Board Tt'uses no liquids or powders. Copying is done on photo sensitive papers. Madison A-V Company, 62 Grand Street, The Casual Compact sells for $69.95 and should. be New York, New York,) 10013, U.S.A., purchased -directly from Minnesota Mining announces a new substitute material for andMiamu- facturing Company. chalkboards which can be used'asA writing The address for the International Division is P.O. surface, projection screen, wall covering Box 3800, St. Paul, Minnesota55101. and as a magnetic panel... It comes in 50 :- yard rolls 54 inches wide at $210.00 per Message to AAACE Members Overseas roll, in sections 50" x 50" at $14.00 each, or $4.60 per yard in 54 inch width. Pledger Carmichael, President, Magnetic sections 34" x 48" (and othell- American Association of Agricultural sizes.are available) costs $18.00per College Editors, sayi the high, cost of -section. .; air mail is'forcing them to start using The manufadturer states that'the surface mail for the AAACE Newsletter and _material is impervious to stains, cleans other, materials. If this'causes problems easily with a damp cloth, andcan be used for any of you, Mr. Carmichael wantsyou as a substitute for a normal wall cover tog to write to him and 1$e will see what or finish. Water soluble ink6, "permanent's call do to keep) using' r. mail. His address inks and all kinds of paints,may. be used is College of Agricu pre, University of and removed with solvents without dapage Geo(gia, Athens, Geor is30601 U.S.A.
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INTERCOM NEEDS ARTICLES- ABOUT'YOWR WORK International Agricultural Development- Service. Robert Doan, who formerly"had The p z of-Intercom Is twiet , thiposition Ind publishedIntercom, you sh&re. ur experiencps.and.ideas with ts.tow a Program Specialist in the otheis in?'.ration people mound tits)irdriq. Foreign Tralning Division. . If you ,,ve found an easy way to so sote- n To further introduce,myself, I have .. thIng,m,= ybe someone else-Aan4kaLthis, 41inois liimistock-grain farm bap. isi.zite :dr.r"-- ground, .With B.' S. and M. S. degrees from . Ttk, this issue for example. We are .*. the University of Illinois fon, work 4.n - discuss printing processes;-and the. agricultural comiunicatfonseAs astudent. silk.'scre -informati.. comes largely I was active An the College of.Agri..'. from the Inte can Institute of --)culture's Student News and Information Agricgtural Sciences of the Organisatir ' Bureau.: SNIB is a student replica of of American States in testa Rica. The Hadley Readts Extensioh Thformatron .0 - adaptation .of the silk screen tocmake a, Office, and diptimminAXes news about agri- 'portable mimeograph came from Brdzil... t caltural students and their Activities; Plans for the Wilk screen drying rack For 1-years I was Director -in- Chief of weresuppledby a VITA participant, whilb SNIff,which then had 85 mepbers wot.kfhg the idea of letting pieces dry by clipping in its six divisions (photo, radio; TV, , them to a wire came from Indiana Uni- press, publications, and exhibdts). versity.. We can all benefit frog' using each others ideas and experiences.' After receivinggyfil.S.degree, I . spent years in th America, Working Why don't you write me a letter largely in extensionInformation. New, what you are doing? WOcan Work of course,- I am withUSDA. yOur -ideas into an article for this M newsletter. Or, you write the article' Icpere's ever anyway I might,- yourself. Pictures can bq interesting assist you in your workperhaps by sending and"can help.tell your story,'06-senda you Isublicsttion-orl some information picture and we'll try to include it also. dissemination technikue,.or maybe by My address is: David P.dinkelmann getting USDA information specialiits to U..Sr. Department of answer fiame"of your questions - -let' me iculture, kdow. a.
. Room 35104 Washingtoni D.C. 20250 We will also be glad to send you USA extra copies of Intercaol if you can use I'll be counting on something from you foz them, or to add anyone to our mailing list. the next issue. that would like to receive Intercom' regularly. A "HELLO" Sincerely, Since this edition of Intercom is my first contact'with many of you, I want tAtake these last few lines tosay "hel lo"-and to introduce myself. yam e David P. Winkelman thevnew U.S. Department of.Agriculture Communications Communications Training Officer in the Training Officer
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information in this publicationeis supplied withthe understanding that no discrimination is interid6d-and no endorsement by USDA is implies.
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