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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. -
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. -
The EMA Guide to Envelopes and Mailing
The EMA Guide to Envelopes & Mailing 1 Table of Contents I. History of the Envelope An Overview of Envelope Beginnings II. Introduction to the Envelope Envelope Construction and Types III. Standard Sizes and How They Originated The Beginning of Size Standardization IV. Envelope Construction, Seams and Flaps 1. Seam Construction 2. Glues and Flaps V. Selecting the Right Materials 1. Paper & Other Substrates 2. Window Film 3. Gums/Adhesives 4. Inks 5. Envelope Storage 6. Envelope Materials and the Environment 7. The Paper Industry and the Environment VI. Talking with an Envelope Manufacturer How to Get the Best Finished Product VII. Working with the Postal Service Finding the Information You Need VIII. Final Thoughts IX. Glossary of Terms 2 Forward – The EMA Guide to Envelopes & Mailing The envelope is only a folded piece of paper yet it is an important part of our national communications system. The power of the envelope is the power to touch someone else in a very personal way. The envelope has been used to convey important messages of national interest or just to say “hello.” It may contain a greeting card sent to a friend or relative, a bill or other important notice. The envelope never bothers you during the dinner hour nor does it shout at you in the middle of a television program. The envelope is a silent messenger – a very personal way to tell someone you care or get them interested in your product or service. Many people purchase envelopes over the counter and have never stopped to think about everything that goes into the production of an envelope. -
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. -
Paper and Board Packaging Recyclability Guidelines
FOR THE FU IGN TU ES R D E PAPER AND BOARD PACKAGING RECYCLABILITY GUIDELINES PAPER AND BOARD PACKAGING RECYCLABILITY GUIDELINES Helping retailers and brands specify and design packaging that can be reprocessed in paper mills 2 PAPER AND BOARD PACKAGING RECYCLABILITY GUIDELINES 3 CONTENTS PAPER AND BOARD PACKAGING RECYCLABILITY GUIDELINES Paper is a sustainable, renewable and ecologically sound choice for packaging DE because almost all paper and board is recyclable. In practice, the recyclability of 4 Plastic SIG packaging products will be determined by composition and design, and the way N they are collected and presented for reprocessing. The vast majority of paper- based products are easily recyclable. 8 Coatings FO R Paper recycling in the UK is a success story, with over 80% of paper and board 9 Peelable Solutions T packaging recovered for recycling. Paper for Recycling (PfR) is collected primarily H for use in manufacturing processes and is used as an alternative to virgin materials e.g. wood pulp. When presented it should therefore be of adequate quality and 10 Varnishes and Curable Varnishes E Recyclability of paper-based packaging economically viable to use. F As society evolves, different applications are found for paper and board which 11 Adhesives U sometimes require changes to its functionality. This is often achieved by combining 11 Alternative Barriers T the fibre substrate with another material to form a composite multi-layer laminate, U providing properties such as water resistance or a gas barrier to extend product life. These changes provide challenges for recycling, and in many instances can R 97% 12 Paper Products 3% increase the costs of reprocessing and of waste disposal. -
Manufacturing of Paperboard and Corrugated Board Packages
Lecture 9: Manufacturing of paperboard and corrugated board packages Converting operations: printing, die-cutting, folding, gluing, deep-drawing After lecture 9 you should be able to • describe the most important converting operations in paper and paperboard package manufacturing • discuss important runnability considerations in paperboard package handling • relate factors affecting runnability to pppaperboard app earance and pyphysical performance quality parameters 1 Literature • Pulp and Paper Chemistry and Technology - Volume 4, Paper Products Physics and Technology, Chapter 10 • Paperboard Reference Manual, p. 157-225 • Fundamentals of packaging technology Chapters 4, 6, 15 and 18 Paperboard Packaging Design is the result of • Personal creativity plus – Knowledge and understanding of packaging materials, including: • Structural properties • Graphic capabilities • Converting processes and converting properties • Customer packaging systems • Marketing objectives • Distribution requirements • Retail outlet expectations • Needs and desires of end user • How end user will use the product • Many people may contribute to the design 2 Overall, the design must provide: • Containment of product • Protection of product • Ease in handling through distribution • Prevention of product spoilage • Tamper evidence • Consumer convenience • Brand identification • Communications for the consumer: – Instructions for product use – Coding for quality assurance, expiration dates – Dietary and nutritional information The design should consider: 1. Converting -
4. Printing and Converting Performance
4. Printing and converting performance Paperboard converting 147 Clean edges and surfaces 155 Handling paperboard 158 Offset lithography 160 UV-offset 161 Waterless offset 162 Hybrid offset 162 Flexography 163 Screen printing 164 Digital printing 165 Gravure printing 166 Hot foil stamping 169 Embossing 171 Die-cutting & creasing 174 Lasercutting 178 Scoring 182 Creasabilty & foldability 186 Gluing 194 Binding in practice - the last link 199 Heat sealing 206 Packaging operation 203 Deep drawing 212 146 Reference Manual | IGGESUND PAPERBOARD Paperboard converting Paperboard converting Paperboard has the ability to achieve or exceed the same The increasing demands in the brand promotion process excellent image reproduction as for the best fine papers. for graphic design and the use of non-print surface enhance- Paperboard offers equal possibilities to achieve new, ment are creating innovative shapes and multi-sensory ex- challenging shapes as competing packaging materials. periences for the consumer or user who hand les the product. However, increasing demands on performance of the An understanding of the interaction between paper- material in various converting processes have become board properties and converting effi ciency is essential for evident when speeds in both printing processes and post- designers and converters, since the ultimate design of the press converting have increased. Additionally, the accept- product together with the choice of paperboard will impact ance level for impurities or slight deviations in quality in the on crucial conversion factors like printability, fl atness, and fi nal product has dropped noticeably as a result of both creasing/folding properties. Considering all the variables, end-user demands and the use of modern quality control it is probably true to say that consistency in the behaviour equipment in the various converting machines. -
Pfass and Alternatives in Food Packaging (Paper and Paperboard): Report on the Commercial Availability and Current Uses
PFASs and alternatives in food packaging (paper and paperboard): Report on the commercial availability and current uses Series on Risk Management No. 58 1 Series on Risk Management 0 No. 58 PFASs and Alternatives in Food Packaging (Paper and Paperboard) Report on the Commercial Availability and Current Uses PUBE Please cite this publication as: OECD (2020), PFASs and Alternatives in Food Packaging (Paper and Paperboard) Report on the Commercial Availability and Current Uses, OECD Series on Risk Management, No. 58, Environment, Health and Safety, Environment Directorate, OECD. Acknowledgements: The OECD would like to acknowledge the drafting of a consultancy report by Steve Hollins of Exponent International Ltd. upon which this report is based. It was prepared under the framework of the OECD/UNEP Global PFC Group and included the contribution of information by several organisations (see Annex A). The report is published under the responsibility of the OECD Joint Meeting of the Chemicals Committee and the Working Party on Chemicals, Pesticides and Biotechnology. © Photo credits: Cover: Yuriy Golub/Shutterstock.com © OECD 2020 Applications for permission to reproduce or translate all or part of this material should be made to: Head of Publications Service, [email protected], OECD, 2 rue André-Pascal, 75775 Paris Cedex 16, France ABOUT THE OECD 3 About the OECD The Organisation for Economic Co-operation and Development (OECD) is an intergovernmental organisation in which representatives of 36 industrialised countries in North and South America, Europe and the Asia and Pacific region, as well as the European Commission, meet to co-ordinate and harmonise policies, discuss issues of mutual concern, and work together to respond to international problems. -
Bio-Based and Biodegradable Plastics – Facts and Figures Focus on Food Packaging in the Netherlands
Bio-based and biodegradable plastics – Facts and Figures Focus on food packaging in the Netherlands Martien van den Oever, Karin Molenveld, Maarten van der Zee, Harriëtte Bos Rapport nr. 1722 Bio-based and biodegradable plastics - Facts and Figures Focus on food packaging in the Netherlands Martien van den Oever, Karin Molenveld, Maarten van der Zee, Harriëtte Bos Report 1722 Colophon Title Bio-based and biodegradable plastics - Facts and Figures Author(s) Martien van den Oever, Karin Molenveld, Maarten van der Zee, Harriëtte Bos Number Wageningen Food & Biobased Research number 1722 ISBN-number 978-94-6343-121-7 DOI http://dx.doi.org/10.18174/408350 Date of publication April 2017 Version Concept Confidentiality No/yes+date of expiration OPD code OPD code Approved by Christiaan Bolck Review Intern Name reviewer Christaan Bolck Sponsor RVO.nl + Dutch Ministry of Economic Affairs Client RVO.nl + Dutch Ministry of Economic Affairs Wageningen Food & Biobased Research P.O. Box 17 NL-6700 AA Wageningen Tel: +31 (0)317 480 084 E-mail: [email protected] Internet: www.wur.nl/foodandbiobased-research © Wageningen Food & Biobased Research, institute within the legal entity Stichting Wageningen Research All rights reserved. No part of this publication may be reproduced, stored in a retrieval system of any nature, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the publisher. The publisher does not accept any liability for inaccuracies in this report. 2 © Wageningen Food & Biobased Research, institute within the legal entity Stichting Wageningen Research Preface For over 25 years Wageningen Food & Biobased Research (WFBR) is involved in research and development of bio-based materials and products. -
Artists Talk On
FRIDAY JANUARY 21 7 PM at the School of Visual Arts Artists Talk On Art Critical Dialogue in the Visual Arts–since 1975 presents Aesthetic Realism: The Opposites in Art & Life What are artists doing in their work that people—including artists—want to do in their lives? The answer is in this great principle stated by poet and founder of the philosophy Aesthetic Realism, Eli Siegel: “All beauty is a making one of opposites, and the making one of opposites is what we are going after in ourselves.” CHAIM KOPPELMAN, printmaker —on “Power and Tenderness in Picasso's Minotauromachy” and on his own “Napoleon series” of prints and drawings Teacher of printmaking at SVA, he is a member of the National Academy, and recently received a Lifetime Achievement Award from the Society of American Graphic Artists. Koppelman Napoleons on Alligators MARCIA RACKOW, painter and lecturer —on the work of contemporary American realist painters Leon Golub, Alex Katz, and Philip Pearlstein Teacher of the museum/gallery course “The Visual Arts and the Opposites,” she was recently a guest lecturer at The Pennsylvania Academy of Fine Arts. Katz Cocktail Party DALE LAURIN, architect —on heaviness and lightness in the innovative designs of Santiago Calatrava, architect for the WTC transportation center An associate with Urbane Architects, P.C., he has been a panelist presenting “Housing: A Basic Human Right” at universities, including Harvard, NYU, and the American Institute of Architects. Calatrava Milwaukee Art Museum KEN KIMMELMAN, filmmaker —on the opposition to contempt through the art of animation, showing Disney’s 1929 Skeleton Dance and his own award- winning film Brushstrokes Director of Imagery Film, Ltd., he has made films for the UN and received Emmys for his anti-prejudice public service film The Heart Knows Better and for his contributions to Sesame Street. -
Why Attacks on Public Employee Unions Are on the Rise!
NH Labor News Progressive Politics, News & Information from a Labor Perspective MARCH 6, 2015 NHlabornews.com • New Hampshire Why Attacks on Public Employee Unions Are on the Rise! By Steven Weiner workers have lost their jobs, union-busting is rampant, and in- creasing numbers of Americans are struggling in desperate In recent years throughout America, there have been massive at- poverty. tacks on public employees and the unions that represent them. The latest salvo has come from the newly elected governor of Illi- In an issue of The Right of Aesthetic Realism to Be Known, Ellen nois, Bruce Rauner, who, in the name of “fiscal austerity,” issued Reiss explains: an executive order that bars public sector unions from requiring “Because of this failure of business based on private profit, workers they represent to pay fees (often called “fair share pay- there has been a huge effort in the last decade to privatize ments”) to the union. This means that a worker can benefit from publicly run institutions. The technique is to disseminate mas- a union’s collective bargaining with respect to wages, health in- sive propaganda against the public institutions, and also do surance, pensions and job protections, while not financially sup- what one can to make them fail, including through withhold- porting the union by paying their fair share. The purpose behind ing funding from them. Eminent among such institutions are this measure is described by Roberta Lynch, Executive Director the public schools and the post office. The desire is to place of AFSCME Council 31: them in private hands—not for the public good, not so that “I was shocked by the breadth of his assault on labor….It’s the American people can fare well—but to keep profit eco- not limited to public sector unions. -
Marion Harding Artist
MARION HARDING – People, Places and Events Selection of articles written and edited by: Ruan Harding Contents People Antoni Gaudí Arthur Pan Bryher Carl Jung Hugo Perls Ingrid Bergman Jacob Moritz Blumberg Klaus Perls Marion Harding Pablo Picasso Paul-Émile Borduas Pope John Paul II Theodore Harold Maiman Places Chelsea, London Hyères Ireland Portage la Prairie Vancouver Events Nursing Painting Retrieved from "http://en.wikipedia.org/wiki/User:Ernstblumberg/Books/Marion_Harding_- _People,_Places_and_Events" Categories: Wikipedia:Books Antoni Gaudí Antoni Gaudí Antoni Gaudí in 1878 Personal information Name Antoni Gaudí Birth date 25 June 1852 Birth place Reus, or Riudoms12 Date of death 10 June 1926 (aged 73) Place of death Barcelona, Catalonia, (Spain) Work Significant buildings Sagrada Família, Casa Milà, Casa Batlló Significant projects Parc Güell, Colònia Güell 1See, in Catalan, Juan Bergós Massó, Gaudí, l'home i la obra ("Gaudí: The Man and his Work"), Universitat Politècnica de Barcelona (Càtedra Gaudí), 1974 - ISBN 84-600-6248-1, section "Nacimiento" (Birth), pp. 17-18. 2 "Biography at Gaudí and Barcelona Club, page 1" . http://www.gaudiclub.com/ingles/i_vida/i_vida.asp. Retrieved on 2005-11-05. Antoni Plàcid Guillem Gaudí i Cornet (25 June 1852–10 June 1926) – in English sometimes referred to by the Spanish translation of his name, Antonio Gaudí 345 – was a Spanish Catalan 6 architect who belonged to the Modernist style (Art Nouveau) movement and was famous for his unique and highly individualistic designs. Biography Birthplace Antoni Gaudí was born in the province of Tarragona in southern Catalonia on 25 June 1852. While there is some dispute as to his birthplace – official documents state that he was born in the town of Reus, whereas others claim he was born in Riudoms, a small village 3 miles (5 km) from Reus,7 – it is certain that he was baptized in Reus a day after his birth.