Q:Printing solvent for food packing bag

Smell the smell of solvents. Contact with commonly used solvents, smell, after a long time, the odor of a particular solvent has a rough impression. If the odor of the batch solvent is not pure, it is certain that the purity of the batch solvent is not high or the impurities are more. In addition, the solvent is applied to a clean plastic film to compare its basic odor before and after volatilization, and the tendency of residual solvents can be roughly judged.

Q:What is the difference between LDPE and PE-LD in a package?

LDPE is a low density polyethylene, environmental protection bag production is one of the raw materials, commonly known as low material, another raw material of HDPE is also called high pressure materials, packaging film, the two materials are mixed according to a certain proportion and then blowing, printing, cutting, packing bag made of,PE-LD is a common environmental protection mark printed on top of the packing bag, which indicates that the manufacturer is using an environmentally-friendly plastic bag.

Q:How to evaluate the quality of a food packaging bag design? From what angle?

Successful packaging must be consistent with the product positioning. Today's consumer groups are very different, for example, the elderly and young people on the acceptance of packaging design is very different, but also take moon cake as an example. The elderly may accept the traditional form of packaging (including graphic design, packaging design, structure design and so on) but the young people can accept the moon cake in the cake box, packed in ice cream box, metal box or even installed in the heavy metal in the punk style. You can't imagine an old lady in the supermarket, with a picture of a skull box filled with 8 pieces of moon cakes.

Q:How do I remove the self-adhesive label affixed to the plastic bag?

Use the hair dryer to adjust the hot air to the label. When the label is heated, the glue will melt so that it can be torn off easily. This method is suitable for metal and plastic tools, characterized by quick.

Q:How much is the 1 wire in the food packing bag printing industry?

1 wire =0.01 mm, refers to the thickness of the bag units!

Q:What are the types of composite packaging bags?

Folding general transport packing bagA package of bags weighing 0.5-100 kilograms, mostly woven from plant fibers or synthetic resin fibers, or a multi layer material package made of several flexible materials. For example, straw bags, bags and other cement sacks. - mainly packaging powders, granules, and individual small items.

Q:Is the packet in the food package a reducing agent or an oxidizing agent?

In many food packages, the Producers place a packet of antioxidants and note the words "antioxidants, not edible". Its function is to absorb oxygen in the food bag, so that the oxygen level in the bag is controlled at a very low level, to prevent the proliferation of microorganisms in the bag. Because the growth and division of microorganisms require the participation of oxygen, the spores and hyphae of microorganisms are strongly inhibited under anoxic conditions. Thereby, the food in the bag is preserved, and the probability of microbial contamination is reduced.

Q:What are the advantages and disadvantages of OPP and CPP membranes? What kind of bags are they used for?

(steaming film) CPP, good heat resistance. Because the softening point of PP is about 140 DEG C, this kind of film can be used in hot filling, retort bags, aseptic packaging and other fields. With acid, alkali, grease resistance, making it bread products, packaging or laminated materials and other fields of choice. Its contact with food safety, demonstration of good performance, will not affect the flavor of the built-in food, and can choose different grades of resin to obtain the desired characteristics.

Q:Can aluminum packaging bags be recycled?

This separation technique is still under study, and no practical solutions are reported.

Q:Express carton packaging, plastic packaging should be how to deal with?

Express packaging bags can be used as garbage bags, now online shopping people, in addition to vegetables, fruits this difficult to preserve things, a considerable portion of daily necessities are purchased from the internet. However, the excessive packaging of online shopping packages once troubled people. "Online shopping, a clothing is generally at least two layers of packaging, and the first is the clothes factory comes with transparent plastic bags, and there is a layer of express bags attached to the courier."." Some time ago, "double 11", a friend bought three clothes and a set of speakers, these days have gradually arrived, and summed up a total of eight large plastic bags and two cartons.