F1y3x CHAPTER 48 PAPER and PAPERBOARD
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Effects of Moisture on the Biaxial Strength of Wood-Based Composites
EFFECTS OF MOISTURE ON THE BIAXIAL STRENGTH OF WOOD-BASEDCOMPOSITES J. C. Suhling* J.M. Considine ** K. C. Yeh* * Department of Mechanical Engineering Auburn University Auburn, AL36849-5341 ** U.S.D.A. Forest Products Laboratory One Gifford Pinchot Drive Madison,WI 53705-2398 ABSTRACT applications such as corrugated containers where it is subjected to complicated biaxial stress states, In the present work, the effects of moisture on including shear. At present, lack of accurate the biaxial strength of wood-based composite materials constitutive relations and reliable strength has been examined. Experiments have been performed on predictions under biaxial loading and variable paperboard to measure the uniaxial and biaxial input environments hampers analysis of such problems. parameters of the tensor polynomial criterion at Therefore, it has been common practice in the paper several levels of relative humidity. With these data, industry to use trial and error, and empirical the dependence of the zero shear biaxial failure approaches for optimizing the designs of paperboard envelope on humidity level has been predicted and products. The current lack of technology limits trends have been observed. creative design improvements which could curtail the excess use of materials and energy. Accurate predictions of material strength under 1. INTRODUCTION general biaxial normal loading plus shear are needed by the design engineer when considering typical Unlike laminated fiber-reinforced composite structural applications of paperboard. Examples of materials, paper (paperboard) is a multiphase important current applications where biaxial stress composite composed of moisture, fibers, voids, and states exist in paperboard include the quality control possibly chemical additives. The fibers in paperboard burst test (bulged plate), material handling are typically organic with cellulose fibers from wood operations during the papermaking process, and stacked being the chief material. -
Understanding Matboard
FRAMING FUNDAMENTALS by Jared Davis, MCPF, GCF Understanding Matboard Being the best frame shop in your area starts with the best products. atboard is a fundamental compo- Mnent of almost every framed pic- ture. However, understanding the vast range of information and choices avail- able in matboards can be daunting. In this article, I aim to provide some useful insights about matboard to help you to dispel some of the myths and decipher some of the facts about this vital aspect of our profession. The two primary purposes for matboard that the introduction of a matboard can in- Different grades of matboard are are to provide protection for the artwork and crease both the size and level of value in the designed for to enhance the framing design. sale of a frame. different appli- cations. Under- 1) Protect. The last consumer survey con- standing which choice to make is ducted by the Professional Picture Fram- How Matboard is Made important to both ers Association found that the num- Matboards are comprised of layers of pa- your customer and your business. ber-one reason why a consumer chose to per of various thickness, laminated together. custom frame an artwork was to protect The papers and core of a matboard are made the item. Preservation, clearly, is of prima- from either unpurified wood pulp, purified al- ry importance to your customer. pha-cellulose wood pulp, or in the case of mu- 2) Enhance. A matboard can help the view- seum-grade board, cotton linter pulp. er to focus correctly on the image. -
Cardboard and Brown Paper Bags Office Paper, Newspaper, Junk Mail, Magazines, and Catalogs
Recycling Center 801 Diamond Valley Drive Open: Daily to the public during daylight hours This guide will help you properly prepare your recyclable materials for drop-off at the Town of Windsor Recycle Center. This is a drop-off facility. It does not have a buy-back option and is for use by residents and small businesses. Following this information will help maintain the facility and the recycling program for the benefit of the community. IMPORTANT… • Do not leave your recyclables in plastic bags. Plastic bags are NOT recyclable! • The plastic item must be a BOTTLE or JAR. with a #1 or #2 on the bottom. • 99 percent of these will have a screw-on plastic lid (which isn’t recyclable). • Plastic containers with a #3 - #7 on the bottom are NOT acceptable. • Tubs, buckets, deli plates, microwave/fast food trays, wrappers, Styrofoam, toys, patio furniture, etc. are NOT acceptable. • Plastic bottles larger than 2.5 gallons are NOT acceptable. • Syringes and other medical supplies are NOT acceptable. Cardboard and Brown Paper Bags Corrugated cardboard is easy to recognize. It is made of paper and has an arched layer called “fluting” between smooth sheets called “liners”. The drop-off site has two 40-yard hydraulic compactor units for collecting corrugated cardboard and brown paper bags. The compaction system is self-activated by depositing the prepared materials into a six-inch tall slot. Flatten boxes. Cut or tear large boxes into sections no larger than 4 feet by 4 feet to prevent jamming the machine. No wet, waxed-coated or food-contaminated boxes. -
Zinc and Cadmium in Paper (Reaffirmation of T 438 Cm-96)
WI 050114.01 T 438 DRAFT NO. 5 DATE July 27, 2006 TAPPI WORKING GROUP CHAIRMAN J Ishley SUBJECT CATEGORY Fillers & Pigments Testing RELATED METHODS See “Additional Information” CAUTION: This Test Method may include safety precautions which are believed to be appropriate at the time of publication of the method. The intent of these is to alert the user of the method to safety issues related to such use. The user is responsible for determining that the safety precautions are complete and are appropriate to their use of the method, and for ensuring that suitable safety practices have not changed since publication of the method. This method may require the use, disposal, or both, of chemicals which may present serious health hazards to humans. Procedures for the handling of such substances are set forth on Material Safety Data Sheets which must be developed by all manufacturers and importers of potentially hazardous chemicals and maintained by all distributors of potentially hazardous chemicals. Prior to the use of this method, the user must determine whether any of the chemicals to be used or disposed of are potentially hazardous and, if so, must follow strictly the procedures specified by both the manufacturer, as well as local, state, and federal authorities for safe use and disposal of these chemicals. Zinc and cadmium in paper (Reaffirmation of T 438 cm-96) (no changes were made since last draft) 1. Scope and significance 1.1 This method maybe used for the determination of cadmium and zinc either in paper or in highly opaque pigments. Zinc is usually present in zinc oxide, zinc sulfide, or as lithopone (a combination of zinc sulfide and barium sulfate), which is occasionally used in filled paper, in paper coatings and in high-pressure laminates and wallpaper. -
Tariff Schedules of the United States Alphabetical Index
TARIFF SCHEDULES OF THE UNITED STATES ALPHABETICAL INDEX 447 TARIFF SCHEDULES OF THE UNITED STATES 449 References to References to Tariff Schedules Tariff Schedules A ABACA 30U.02-0U ACID(S) —Continued ABRASIVES AND ABRASIVE ARTICEES Sch 5 Ft IG fatty, of animal or vegetable origin—Con. abrasive wheels mounted on frameworks, salts of— hand or pedal operated 6i<9.39 quaternary ammonium 1+65.15-20 nspf 519.81-86 sodium and potassium 1+65.25-30 ACCESSORIES (see PARTS, specific article of other 1+90.30-50 which accessory, or name of accessory) gluconic, and its compounds 1+37-51-52 ACCORDIONS 725.1U-16 glycerophosphoric, and its compounds 1+37.51+ ACCOUNTING MACHINES incorporating calculating inorganic 1+16.05-1+0 mechanism 676.1S-25 organic, including halogenated, hydroxy, ACENAPHTHENE li01.02 sulfonated and other substituted and ACETALDEHIDE U27.U0 unsubstituted acids 1+25-70-98 ACETALS ii29.00 monohydric alcohol esters of 1+28+50-72 ACETANILIDE— polyhydric alcohol esters of 1+28.30-1+6 suitable for medicinal use U07.02 salts of I+26.IO-I+27.28 other k03.60 salicylic— ACETATE(S) — suitable for medicinal use 1+07.12 amyl lt28.SO other 1+03-60 benzyl 1+08.05 tannic, containing of tannic acid— butyl 1+28.52 under 50 percent 1+25.98 calcium 1+26.10 50 percent or more 1+37-68-69 cellulose 1+1+5.20 ACONITE 1+35-05-10 copper 1+26.28 ACRIDINE 1+01.01+ ethyl 1+28.58 ACRTLATES AND METHACRTLATES 1+28.62-66 lead 1+26.36 ACRYIIC RESINS 1+1+5.05 nickel 1+26.58 ACRTLONITRILE— 1+25.00 sodium 1+26.86 resins l+i+5.10 vinyl 1+28.68 ACTIVATED CLAY 521.87 Other -
Detection of Acid-Producing Bacteria Nachweis Von Säureproduzierenden Bakterien Détection De Bactéries Produisant Des Acides
(19) TZZ ¥ _T (11) EP 2 443 249 B1 (12) EUROPEAN PATENT SPECIFICATION (45) Date of publication and mention (51) Int Cl.: of the grant of the patent: C12Q 1/04 (2006.01) G01N 33/84 (2006.01) 19.11.2014 Bulletin 2014/47 (86) International application number: (21) Application number: 10790013.6 PCT/US2010/038569 (22) Date of filing: 15.06.2010 (87) International publication number: WO 2010/147918 (23.12.2010 Gazette 2010/51) (54) DETECTION OF ACID-PRODUCING BACTERIA NACHWEIS VON SÄUREPRODUZIERENDEN BAKTERIEN DÉTECTION DE BACTÉRIES PRODUISANT DES ACIDES (84) Designated Contracting States: (74) Representative: Isarpatent AL AT BE BG CH CY CZ DE DK EE ES FI FR GB Patent- und Rechtsanwälte GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO Friedrichstrasse 31 PL PT RO SE SI SK SM TR 80801 München (DE) (30) Priority: 15.06.2009 US 187107 P (56) References cited: 15.03.2010 US 314140 P US-A- 4 528 269 US-A- 5 098 832 US-A- 5 164 301 US-A- 5 601 998 (43) Date of publication of application: US-A- 5 601 998 US-A- 5 786 167 25.04.2012 Bulletin 2012/17 US-B2- 6 756 225 US-B2- 7 150 977 (73) Proprietor: 3M Innovative Properties Company • DARUKARADHYA J ET AL: "Selective Saint Paul, MN 55133-3427 (US) enumeration of Lactobacillus acidophilus, Bifidobacterium spp., starter lactic acid bacteria (72) Inventors: and non-starter lactic acid bacteria from Cheddar • YOUNG, Robert, F. cheese", INTERNATIONAL DAIRY JOURNAL, Saint Paul, Minnesota 55133-3427 (US) ELSEVIER APPLIED SCIENCE, BARKING, GB, • MACH, Patrick, A. -
FAQ About Recycling Cartons
FREQUENTLY ASKED QUESTIONS ABOUT CARTONS WHAT IS A CARTON? » Cartons are a type of packaging for food and beverage products you can purchase at the store. They are easy to recognize and are available in two types—shelf-stable and refrigerated. Shelf-stable cartons (types of products) Refrigerated (types of products) » Juice » Milk » Milk » Juice » Soy Milk » Cream » Soup and broth » Egg substitutes » Wine You will find these You will find these products in the chilled products on the shelves sections of grocery stores. in grocery stores. WHAT ARE CARTONS MADE FROM? » Cartons are mainly made from paper in the form of paperboard, as well as thin layers of polyethylene (plastic) and/or aluminum. Shelf-stable cartons contain on average 74% paper, 22% polyethylene and 4% aluminum. Refrigerated cartons contain about 80% paper and 20% polyethylene. ARE CARTONS RECYCLABLE? » Yes! Cartons are recyclable. In fact, the paper fiber contained in cartons is extremely valuable and useful to make new products. WHERE CAN I RECYCLE CARTONS? » To learn if your community accepts cartons for recycling, please visit RecycleCartons.com or check with your local recycling program. HOW DO I RECYCLE CARTONS? » Simply place the cartons in your recycle bin. If your recycling program collects materials as “single- stream,” you may place your cartons in your bin with all the other recyclables. If your recycling program collects materials as “dual-stream” (paper items together and plastic, metal and glass together), please place cartons with your plastic, metal and glass containers. WAIT, YOU JUST SAID CARTONS ARE MADE MAINLY FROM PAPER. Don’t I WANT TO PUT THEM WITH OTHER PAPER RECYCLABLES? » Good question. -
What Notto Recycle Curbside
NEWSPAPERS • Newspaper Newspapers must be bundled and tied • Inserts that come w/newspapers, such with string or twine. Shredded paper as comics, glossy coupons, must be in clear or labeled plastic bags. TV/magazine sections & colored food/store ads GLASS BOTTLES, ALL PLASTIC BOTTLES • Glass bottles (all colors) #1 - #7 Examples: Water, soda, milk, & CONTAINERS (#1 - #7 ), STEEL, • Glass jars (all colors) juice, soap, detergent, bleach, BIMETAL & ALUMINUM CANS These • Steel cans shampoo and cleaning-agent bottles. items should be rinsed thoroughly and • Bimetal cans You may also include peanut butter, placed inside your recycling bucket. Only • Aluminum cans yogurt and diaper-wipe containers, margarine tubs, plastic trays and the items listed at right are acceptable. • All plastic bottles and clear plastic clamshell containers Crush all plastic bottles to save space. containers #1 - #7 from restaurant salad bars. Remove caps. NO STYROFOAM® OTHER PAPER/JUNK MAIL • Magazines • Catalogs Other paper should be placed in a brown • Writing/school paper • Phone books paper bag or cardboard box and placed • All envelopes • Store fliers w/mailing labels next to your blue bucket. • Copy paper • Office paper • Paperback books • Non-metallic gift wrap • Hardcover books • Greeting cards w/hard covers removed CORRUGATED CARDBOARD, • Corrugated cardboard • Tissue boxes CHIPBOARD & PIZZA BOXES • Pizza boxes (clean!) • Paper towel rolls Corrugated cardboard must be cut into • Brown bags 2 ft. x 2 ft. squares and tied with string or • Chipboard boxes including: twine. Please include pizza boxes & cereal, cookie, pasta, cake, cracker, chipboard with corrugated cardboard. detergent (remove plastic liners), Place tied bundle (pizza boxes, chipboard gift, shoe, shirt and any retail & cardboard) next to your recycling boxes. -
Basics of Kraft Pulping
Lignin Wood is composed of many chemical components, primarily extractives, carbohydrates, and lignin, which are distributed nonuniformly as the result of anatomical structure. Lignin is derived from the Latin term lignum, which means wood.1 Anselme Payen (1838) was the first to recognize the composite nature of wood and referred to a carbon- rich substance as the “encrusting material” which embedded cellulose in the wood. Schulze (1865) later defined this encrusting material as lignin. Lignin has been described as a random, three-dimensional network polymer comprised of variously linked phenylpropane units.2 Lignin is the second most abundant biological material on the planet, exceeded only by cellulose and hemicellulose, and comprises 15-25% of the dry weight of woody plants. This macromolecule plays a vital role in providing mechanical support to bind plant fibers together. Lignin also decreases the permeation of water through the cell walls of the xylem, thereby playing an intricate role in the transport of water and nutrients. Finally, lignin plays an important function in a plant’s natural defense against degradation by impeding penetration of destructive enzymes through the cell wall. Although lignin is necessary to trees, it is undesirable in most chemical papermaking fibers and is removed by pulping and bleaching processes. 1.1.1 Biosynthesis Plant lignins can be broadly divided into three classes: softwood (gymnosperm), hardwood (angiosperm) and grass or annual plant (graminaceous) lignin.3 Three different phenylpropane units, or monolignols, are responsible for lignin biosynthesis.4 Guaiacyl lignin is composed principally of coniferyl alcohol units, while guaiacyl-syringyl lignin contains monomeric units from coniferyl and sinapyl alcohol. -
Different Perspectives for Assigning Weights to Determinants of Health
COUNTY HEALTH RANKINGS WORKING PAPER DIFFERENT PERSPECTIVES FOR ASSIGNING WEIGHTS TO DETERMINANTS OF HEALTH Bridget C. Booske Jessica K. Athens David A. Kindig Hyojun Park Patrick L. Remington FEBRUARY 2010 Table of Contents Summary .............................................................................................................................................................. 1 Historical Perspective ........................................................................................................................................ 2 Review of the Literature ................................................................................................................................... 4 Weighting Schemes Used by Other Rankings ............................................................................................... 5 Analytic Approach ............................................................................................................................................. 6 Pragmatic Approach .......................................................................................................................................... 8 References ........................................................................................................................................................... 9 Appendix 1: Weighting in Other Rankings .................................................................................................. 11 Appendix 2: Analysis of 2010 County Health Rankings Dataset ............................................................ -
Photograpmc MATERIALS CONSERVATION CATALOG
PHOTOGRAPmC MATERIALS CONSERVATION CATALOG The American Institute for Conservation of Historic and Artistic Works Photographic Materials Group FIRST EDmON November 1994 INPAINTING OUTLINE The Pbotographlc MaterIals CODServatioD Catalog is a publication of the Photographic Materials Group of the American Institute for CODBervation of Historic and Artistic Works. The Photographic MaterIals CoDServatioD Catalog is published as a convemence for the members of the Photographic Materials Group. Publication in DO way endorses or recommends any of the treatments, methods, or techniques described herein. First Edition copyright 1994. The Photographic Materials Group of the American Institute for CODBervation of Historic and Artistic Works. Inpa........ 0utIIDe. Copies of outline chapters of the Pbotograpble MaterIals CoaservatloD Catalog may be purchased from the American Institute for CODBervation of Historic and Artistic Works, 1717 K Street, NW., Suite 301, Washington, DC 20006 for $15.00 each edition (members, $17.50 non-members), plus postage. PHOTOGRAPIDC MATERIALS CONSERVATION CATALOG STATEMENT OF PURPOSE The purpose of the Photograpbic Materials Conservation Catalog is to compile a catalog of coDSe1'Vation treatment procedures and information pertinent to the preservation and exhibition of photographic materials. Although the catalog will inventory techniques used by photographic conservators through the process of compiling outlines, the catalog is not intended to establish definitive procedures nor to provide step-by-step recipes for the untrained. Inclusion of information in the catalog does not constitute an endorsement or approval of the procedure described. The catalog is written by conservators for CODSe1'Vators, as an aid to decision making. Individual conservators are solely responsible for determining the safety, adequacy, and appropriateness of a treatment for a given project and must understand the possible effects of the treatment on the photographic material treated. -
Tensile Properties of Paper and Paperboard (Using Constant Rate of Elongation Apparatus) (Revision of T 494 Om-01)
WI 050808.09 T 494 DRAFT NO. 2 DATE June 13, 2006 TAPPI WORKING GROUP CHAIRMAN D Muchorski SUBJECT CATEGORY Physical Properties RELATED METHODS See “Additional Information” CAUTION: This Test Method may include safety precautions which are believed to be appropriate at the time of publication of the method. The intent of these is to alert the user of the method to safety issues related to such use. The user is responsible for determining that the safety precautions are complete and are appropriate to their use of the method, and for ensuring that suitable safety practices have not changed since publication of the method. This method may require the use, disposal, or both, of chemicals which may present serious health hazards to humans. Procedures for the handling of such substances are set forth on Material Safety Data Sheets which must be developed by all manufacturers and importers of potentially hazardous chemicals and maintained by all distributors of potentially hazardous chemicals. Prior to the use of this method, the user must determine whether any of the chemicals to be used or disposed of are potentially hazardous and, if so, must follow strictly the procedures specified by both the manufacturer, as well as local, state, and federal authorities for safe use and disposal of these chemicals. Tensile properties of paper and paperboard (using constant rate of elongation apparatus) (Revision of T 494 om-01) (Underlines indicated changes/corrections since last draft) 1. Scope 1.1 This test method describes the procedure, using constant-rate-of-elongation equipment, for determining four tensile breaking properties of paper and paperboard: tensile strength, stretch, tensile energy absorption, and tensile stiffness.