All Categories>
How to prevent the packaging sponge from turning yellow and what is the effect
Release time:
2020-12-22 14:45
Packaging sponge has excellent fracture toughness and corrosion resistance, low electric polarization characteristics. Feel fine and uniform, good Rashin force, corrosion resistance and aging resistance. In wear resistance, wear resistance, high temperature resistance, strong pull, good plasticity, no bad taste. Therefore, everyone's packaging sponge is widely used.
According to the production process, especially after manufacturing, it can also be made into printer service facilities such as copy printing ribbon wheel, ink wheel, toner cartridge, sealing cotton, etc. The packaging sponge manufactured by Zhenhua is a polyester porous structure sponge made through a manufacturing process. It not only has the benefits of general porous structure sponge, but also has the advanced characteristics of subtle color change, high opening rate, good air permeability, water resistance, corrosion resistance, aging resistance and compressive strength. Widely used in household central air-conditioning filter layer and vehicle air filtration, aquarium fish tank and other filter sponge, the role of the original filter products are much better, and can be removed from continuous use.
How to prevent yellowing?
The simple difficulty in the compression formation of packaging sponge is yellowing. In general, when 200-220 is compressed, the edge of the packaging lining sponge turns yellowing and has a pungent smell. It is more extensive. How can everyone deal with this problem?
According to the experiment, we know that the high temperature of the temperature level leads to the aggravation of the causticization level of the packaging sponge, resulting in the structural changes of the sponge. We want to prevent the packaging sponge yellow, as far as possible to reduce the isolation of sponge oxidation. The manufacturer's common method is to add antioxidants to the heat-resistant temperature of the traveling packaging sponge.
Permanent use of packaging sponge will slowly turn yellow. Everyone stipulates the control of ultraviolet rays, active oxygen, hydrocarbons (smoke yellowing) and other elements that make sponge yellowing. Generally speaking, the yellowing time of packaged sponge is uncertain, and we cannot guarantee that it will not change yellow for 3 months or 6 months, which also depends on the specific geographical environment requirements. Even the use of additives of sponge can not prevent, after all, additives only have the role of resistance, can not have the role of stopping.
Related News
How to identify natural sponge and artificial sponge?
Compared with artificial sponges, natural sponges do not have static electricity that hurts the human body, do not peel off and last long. The sponge that lives in the sea is the real sponge, and the artificial "sponge" just imitates the structure of the natural sponge. Natural sponges that live in seawater are mostly grayish yellow, brown or black lumps. Its body surface has many bulges, there are many small holes beside the bulge, and there is a large hole at the top of the bulge. Seawater flows in from small holes and out from large holes, and those tiny creatures enter the sponge with the water and become "self-contained" food. Therefore, although the sponge is called "the flowers and fruits of the sea", it looks like a plant, but it is actually an animal.
Buy a pack of large salt or coarse salt, put the coarse salt and dirty plush toys into a larger plastic bag, and then fasten the mouth of the bag tightly and shake it vigorously. You will surely find that the plush toys are clean. The crude salt removed became gray-black due to the adsorption of dirt. The principle is the use of salt that is sodium chloride adsorption of dirt. Soda powder can also be used instead of coarse salt, the same usage. This method is more suitable for large plush toys and plush toys that can not be washed with sound.
The main ingredient of the sponge?
Polyurethane soft foam rubber, polyurethane is one of the most common polymer materials in life, widely used in the production of various "sponge" products. Now there are three kinds of sponges on the market, 1: polyurethane type, burning to generate a large number of cyano-containing gases, these gases are very toxic and suffocating. 2: polyethylene type, combustion of carbon-containing gas, this kind of gas toxicity. 3: polystyrene type, this kind of foam burning decomposition of a small amount of styrene monomer, toxic, but not as toxic as polyurethane.
Sponge manufacturers analyze the performance of packaging sponge products into what
Sponge manufacturers analyze the performance of packaging sponge products into what?
What are the functions of the packaging sponge?
What is the function of packing sponge?
Sponge manufacturers take you to understand the main functions of sponge
What are the main functions of sponge manufacturers to take you to understand?
