Choose Zippers To See Three Color Fastness.

< p > > a href= "http://www.91se91.com/" > color fastness < /a > mainly includes the properties of washing and friction resistance, generally referring to the degree of fading of the dyed fabric under the action of external factors (extrusion, friction, soaping, rain and insolation, etc.) during the use or processing.

As a manufacturer, when choosing < a href= "http://www.91se91.com/" > zipper < /a > supplier, we should pay attention to three kinds of fastness of zippers: fastness to sunlight, color fastness to soaping and color pfer, which can avoid these problems and improve the quality of garments.

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< p > < strong > sunshine fastness < /strong > /p >

< p > generally speaking, sweat is accompanied by sunlight.

Therefore, the sunlight fastness is not single, it includes double fastness to sun and sweat.

Different degrees of solarization can cause a series of photochemical reactions to cause structural damage to the dye itself, resulting in discoloration and fading.

At the same time, the presence of sweat can make the pH value weak acid or weak alkaline, which will also significantly reduce the fastness of some disperse dyes to sunlight.

Therefore, this compound effect is very different from that of pure sunlight fastness or perspiration fastness.

However, through some precautions, the color fastness of the compound can be enhanced, so that the color of the zipper can be kept bright for a long time.

Therefore, when choosing some a href= "http://www.91se91.com/" > zipper < /a > products, you should choose those zippers which are treated with UV or directly with high fastness.

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< p > < strong > washing fastness > /strong > /p >

< p > < a > href= > http://www.91se91.com/ > zipper < /a > the fastness to soaping is also an important index.

The ordinary zipper cloth is made of 100% polyester and dyed with disperse dyes at high temperature.

The soaping fastness of disperse dyes refers to the degree of dyeing of single or multi fiber fabrics under certain washing conditions.

Theoretically speaking, disperse dyes are dispersed within the polyester fiber, and the disperse concentration of dyes gradually decreases from the surface layer to the inner layer, which results in the accumulation of more dye molecules on the surface.

Therefore, the resistance to soaping fastness depends on two aspects: first, the size of the interaction force between the dye itself and the fiber molecules, and the larger the applied force. The dye molecules are hard to be washed out of the fiber surface by the soap and the force is small. Conversely, two is the residual amount of dye molecules on the surface of the fiber in the dyeing finishing process. If the latter is treated more thoroughly, the residual amount of the surface dyes will be very small.

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< p > but there are many standards for soaping, such as soaping temperature of 40, 60 and 95 degrees. There are many kinds of detergents, which are generally divided into phosphorus free and phosphorus. Washing time is also long and short.

Therefore, under different washing standards, the fastness of zipper cloth is not comparable.

Moreover, the high soaping intensity will cause the fastness of the belt to drop.

Therefore, in addition to telling consumers that in ordinary clothes washing process, it is not suitable for zipper tapes to use high temperature water and over strong detergent. The general temperature should not exceed 40 degrees centigrade. The best neutral and weak alkaline detergents should not exceed 30 minutes. The most important thing is to choose some products with high soaping fastness as far as possible when choosing zipper products.

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< p > < strong > Color < a href= "http://www.91se91.com/" > pfer dye > /a > problem < /strong > /p >

"P" is often used by many clothing and clothing enterprises, such as PVC, PE cloth and various functional coatings, which are more complex in processing technology, and usually have some chemical additives such as plasticizer, solvent and so on.

It is because of the presence of these auxiliaries that when the fibers are in contact with the fibers for a long time, these auxiliaries will penetrate into the fibers and make dye molecules more easily diffuse from the inside to the surface.

If the fabric is white or light, the fabric will be easily stained.

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< p > to solve the problem of color shifting of zipper tape caused by diffusion, the best way is to see whether the dyestuffs used can better combine with polyester fibers when selecting zippers.

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< p > zipper is an important excipient for clothing. Its quality directly affects the final quality of apparel products.

Therefore, when choosing a zipper supplier, it is also necessary to know clearly the indicators of various aspects of its products.

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