mac cosmetics wholesale The design of packaging re

Packaging Improvement of the design of recycling

Areas such as ease of full consideration, only the balance of these aspects can only grasp the comprehensive development package, to avoid the passive situation, in order to obtain the greatest economic and social benefits. Can be easily decomposed material decomposition of the packaging materials such as degradable materials for packaging design. Biodegradable plastic is biodegradable packaging materials representative. The new packaging plastic products, usually edible organic acids, sugars, cellulose, modified starch and other substances as the main raw material, through microbial fermentation or special processing after molding, made of various plastic packaging products, such as various different uses plastic bags and bottles. The new plastic is made of edible materials as raw materials after use can be broken down into micro-organisms in nature of carbon dioxide and water, will not cause environmental pollution. Method for manufacture of biodegradable plastics can be divided into three types. ① microbial synthesis: there are many in nature to produce polyester (as energy storage material) of microorganisms, these microorganisms ferment under appropriate conditions to produce polyester, which is manufacturing biodegradable plastics very efficient method. The ability of biodegradable polyester. With a thermoplastic molding processability. ② chemical synthesis: Most of the synthetic polymer material will not be broken down by microorganisms, but in the aliphatic polyester and water-soluble polymer, there are susceptible to microbial degradation of the material. Chemical synthesis is of such biodegradable polymer materials for chemical synthesis of plastic produced in this way in the water resistance, strength,[link widoczny dla zalogowanych], processing, molding, thermoplastic and so close to the existing plastics, performance, and is biodegradable , can the original chemical synthesis technology-based expansion of production scale, if mass production, you can reduce costs. ③ natural substance used method: This is a fiber, starch and other natural polymer materials as the base material of the production methods. If the direct use of natural polymer material, its strength, water resistance and other problems will appear, therefore, usually have to use after chemical denaturation. Because the use of a natural material, so good biodegradability, and the use of starch and other materials, raw material prices are low,[link widoczny dla zalogowanych], the corresponding price is lower. Obtained using the above three methods of plastic, its physical properties vary, there are also differences degradation, but also the starch and other natural polymer substances and other biodegradable polymer material mixed production methods. Several of the biodegradable material mixed production, can be physical properties, degradation of performance, price and other terms of mutually reinforcing. Materials, Used in packaging design packaging material does not contain harmful substances, especially heavy metals in food packaging, ink, etc. should be removed clean. To food packaging and printing materials, for example, the current use of organic solvent-based inks and coatings, due to emissions of hydrocarbons, pollution of the atmosphere, and are harmful to human health, and water-based ink can be used to solve this problem and solvent-based inks The biggest difference is that water-based ink used in the solvent is water rather than organic solvents. That is, water-based ink binders are mainly composed of resin and water. Solvent-based inks in the manufacture and use, often using some solvents deployment. Solvents commonly used in gasoline, toluene, xylene, kerosene, turpentine, alcohols, aromatic and other organic solvents. Because they use a solvent-based ink drying mainly in the form of volatile, lower boiling point solvent, the more volatile,[link widoczny dla zalogowanych], and volatile gas when it released, pollution the environment, harmful to workers. After printing a surface of residues of harmful substances, food packaging use is inappropriate, is inconsistent with the health law and environmental protection. The water as a diluent and cleaning agents, its cheap, wide variety of sources on the environment are harmless to human, is a good, green solvents. With the further improvement of water-based inks and printing equipment to strengthen the improvement of supporting facilities, the existence of traditional water-based ink drying slow, low-gloss, easy to create three major drawbacks of paper stretching, has been a marked improvement. In recent years, the use of foreign terms, water-based ink solidification of high, low viscosity, imprinting a clear, solid ink, cleaning easy, the drying rate has reached 20Ore/rain,[link widoczny dla zalogowanych], resolution of more than 150 lines / inch,[link widoczny dla zalogowanych], four-color overprint Image is very clear, shiny bit as impressive as its solvent-imprinted ink. (In Xin) a 27 -

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