A RuanSu printing process questions and answers

RuanSu printing process question and answer a RuanSu printing process q&a

whether can use EVA film to wrap the clothes?

clothes packaging film most use transparency, good heat sealing BOPP film, adopts the seamless heat sealing bag, made clothing pocket, beautiful beautiful, and you can clearly see the clothing style, work fine or not, in order to facilitate open, generally use stickers or concave and convex clasp for sealing, can be arbitrary opened and closed again. Use EVA film, softness is better than BOPP film, but less stiffness of BOPP, transparency is slightly worse than BOPP, if the request is not high, of course, EVA can be used in place of the hot sealing BOPP film. But the price I'm afraid EVA may not be cheaper than can be heat sealing BOPP, because the price is expensive, EVA particles at present is 10000 yuan/ton.

waste SBS materials, how to recycle?

can add plasticizer SBS part of n-hexane and add new SBS aggregate processing again after forming.

table printing ink on the aluminum foil printing, after printing fastness is very good, but after cooking under 100 ℃ for 30 min ink peeling, how to solve? （ Polyamide table printing ink. )

it shows that this kind of polyamide table printing ink with aluminum foil of high temperature cooking is bad. Can use high-temperature cooking compound on BOPET film after the printing ink, with aluminum foil ( Dry compound) Production of high temperature cooking bags for packaging. Can also use the book 'China plastics formula of introduction of crosslinking of silane coupling agent a two-component acrylate high-temperature cooking table printing ink ink instead of one-component nylon, can have good resistance to high temperature cooking, fall off after 100 ℃ for 30 min will not occur.

single liquid milk packaging bag of 100 ℃ for 30 min sterilization, torn bags, why?

100 ℃ for 30 min of high temperature cooking bags must be vacuum packing, otherwise, the air in the bag with the cooking temperature rise and gas volume increase, the pressure in the bag into the improvement of more than ten times, plastic bag is not under high pressure, will, of course, to break the bag. In general, this kind of simple milk bags, should be at 85 ℃ for 30 min sterilization, called pasteurization, then the plastic sheets using hydrogen peroxide or sterile room after hydrogen peroxide + ultraviolet sterilization in aseptic packaging is better. This kind of pasteurized milk can only be sold under shallow cold - 1 2 day, time shoulds not be too long. Because pasteurization only eliminate pathogenic bacteria, mold and yeast in the milk is abundant, room temperature will reproduce and make the milk go bad. Conversion table packaging printing knowledge