Home > News center

How to distinguish between good and bad materials of non-woven bags

Don't non-woven bags product quality methods are as follows.

The first to see whether the fabric is new material is very important, because the non-woven fabric is a kind of easy to decompose the fabric, when the inventory time is too often will seriously affect its life, the new material is generally its uprightness and toughness are much better.

Second look at the printing, the printing of good or bad directly affects the beauty of the non-woven bags, take screen printing, its screen printing pattern is uniform, there is no obvious air holes, if the color printing, it is necessary to see whether the color set is accurate, there is no serious position deviation.

Third sewing process, for handbag, sewing process is good or bad directly affects the solidity of the bag, in general, a centimeter must have three needles, to see whether the stitching is neat, especially with inverted needles where there is no inverted position, if the inverted needle is not in place then the mouth of the bag is easy to be ripped open, there is also the bag there is no slant bag and other phenomena, this also seriously affects the beauty of the bag.

How to distinguish between real and fake non-woven bags: 1.

1. detection method with water: non-environmental bags placed in water and pressed into the water bottom, non-toxic non-environmental bags with a small specific gravity, can float to the surface, toxic non-environmental bags with a large ratio, sinking.

2. Fire detection method: non-toxic polyethylene non-environmental bags flammable, the flame is blue, yellow at the top, burning like candle tears dripping, paraffin smell, smoke less; toxic polyvinyl chloride non-environmental bags are not flammable, away from the fire that is extinguished, the flame is yellow, green at the bottom, softening can be drawn, with the irritating smell of hydrochloric acid.

3. shaking detection method: grab the non-environmental bags by hand end shake hard, emitting a crisp sound non-toxic; sound muffled toxic.

4. sensory testing method: non-toxic non-environmental bags are milky white, translucent, or colorless transparent, flexible, feel lubricated, the surface seems to have wax; toxic non-environmental bags cloudy color or yellow, feel sticky.