Knowledge Release: Quality Inspection Of Jeans

　　 Jeans wear It is a garment worn by the early American pioneers (Cowboys). Pure cotton and cotton fiber It is mainly made of blended and interwoven yarn dyed denim. Jeans have become one of the most fashionable clothing items with the largest per capita consumption. Man's suit Besides, another popular clothing that has been popular for 100 years and has the most extensive and seasonless clothing has developed into jeans, denim skirts, jeans suits, cowboy shoes and cowboys and cowboy bags.

　　 Key indicators

1. safety performance indicators. It mainly includes formaldehyde content, pH value, decomposable aromatic amine dye, peculiar smell and so on. In the process of printing and dyeing and finishing, jeans should be added with various dyes, auxiliaries and other finishing agents. These finishing agents contain more or less substances that are harmful to human body. When harmful substances are left on textiles and reach a certain amount, they will cause harm to human skin and even human health.

2. color fastness. It mainly includes 6 kinds: washing resistance, dry friction, light resistance, water resistance, sweat resistance, and saliva color fastness (including infant products). The color fastness can not only affect the beauty of the product, but also the dye that has been removed can be absorbed by human body through sweat, causing allergy and poisoning and affecting the health of users.

3. breaking strength and tearing strength. Fabric tear strength and breaking strength are the physical and mechanical properties of fabrics. Tearing strength refers to the maximum external force required for the yarn to break when the fabric is torn. The breaking strength of the fabric refers to the strength when the warp or weft yarn breaks completely, the greater the breaking strength and the tear strength, the stronger the denim garment is, the more durable it is.

4. wash size change rate. The rate of change in the size of water washing is usually referred to as the shrinkage rate, which refers to the percentage of the original size of the material after washing. The failure rate of washing size change will affect the function of garment processing and clothing.

5. after washing, twist and twist move. To characterize the degree of variation of jeans or denim skirts before and after washing.

6. wear resistance. The wear performance of jeans is subjected to external forces, which is indicated by repeated times of friction and wear. The better wear resistance, the more durable the jeans wear, the higher the life expectancy.

7. slip. Slippage is a gap or crack formed by the relative movement of fabric.

8. peel strength. To characterize the firmness of the lining of the denim garment with adhesive lining.

9. seam strength. Characterize the firmness of jeans garment joints.

Shopping Tips

Check it out. When buying jeans, you should carefully check the instructions on the tag, including whether the manufacturer's name and address, product name, product size and specification, the ingredients and contents of raw materials, washing methods, matters needing attention in use and storage conditions, product life, product standard number, product quality grade, product quality inspection qualification certificate and product safety category. Generally speaking, the more abundant information is, the better.

Two distinguish. When choosing jeans, the first thing to tell is whether the primary color product or the water washing product. The original color cowboy product is relatively strong, and it is not easy to tear and break. The washing cowboy products have been washed and processed by various combinations, and some cowboy clothes are often fashions such as nostalgia, beggar and so on. The tearing strength and breaking strength are greatly reduced.

Three look. Due to the various washing and finishing processes, the washing jeans are often accompanied by various color changes. The styles are often fashionable and fashionable, and require less color difference. For the original color cowboy, the dyeing must be uniform and the chromatic aberration requirement is high.

Four smell. Pick up cowboy clothing near your nose and smell it carefully. You can't have mildew, gasoline, kerosene, fishy smell, etc.