Nowadays, with the improvement of the economic level, o […]
Nowadays, with the improvement of the economic level, our nonwoven fabric concept of environmental protection is also increasing day by day. Now Hangzhou Nuobang Nonwovens has won the love of many people, and many manufacturers are also optimistic about the development prospects of nonwoven bags, and they have successively invested in this industry. Go, but in the face of so many non-woven bags on the market, how do we tell whether it is true or false? Everyone who looks at non-woven bags should know that stitching is very important in the process of non-woven bags.
Cheap ones In order to save costs, spinning bags usually only take a single thread when the locomotive is routed, and the employment of inexperienced workers makes the product stitching line not straight or even running. The number of grams here refers to the weight of the non-woven fabric in 1 square meter. The heavier the weight, the more non-woven fabrics are used. The thicker and stronger the non-woven fabrics are naturally. For the non-woven bags used by ordinary companies for publicity, most of them are used Suitable for 80 grams of non-woven fabrics, 80 grams of non-woven fabrics can be reused about 10 times, with a thinner hand, 70 grams can bear weight, 80 grams can bear 5-6 kg weight, and so on.
A good quality non-woven bag is not only strong and durable, but also looks good. It is very high-grade when held in the hand. Most non-woven bags on the market use screen printing. Clearly, in addition to human factors, another important indicator is pigments, and some unscrupulous manufacturers choose inferior dyes, which leads to non-woven bags that are not environmentally friendly and even have a pungent smell. The following will introduce the specific methods to detect the authenticity of non-woven bags. Put the non-environmental protection bags in the water and press them into the bottom. The proportion of non-toxic and non-environmental protection bags is small and can surface.
The proportion of toxic and non-environmental protection bags is large. sink. The non-toxic polyethylene non-environmental protection bag is flammable, the flame is blue, the upper end is yellow, and it drips like candle tears when it burns, has a paraffin smell, and has less smoke; the toxic PVC non-environmental protection bag is not flammable, and it goes out immediately after leaving the fire. , The flame is yellow, the bottom is green, it can be softened and can be drawn, and it has a pungent odor of hydrochloric acid. Grab one end of the non-environmental protection bag with your hand and shake it vigorously. Those with a crisp sound are non-toxic; those with a dull sound are toxic. Non-toxic non-environmental protection bags are milky white, translucent, or colorless and transparent, flexible, smooth to the touch, and waxy on the surface; toxic non-environmental protection bags are cloudy or yellow in color and sticky to the touch.