Reasonable and correct use of zippers is an important way to improve the service life of zippers. Rational use includes two meanings, one is to choose properly, match zippers of different specifications and different varieties on suitable clothing, and the other is to sew and use correctly.
Important Tips for Buying Zippers
Because the adaptability of zippers in different environments and occasions is different, different specifications have a certain scope of application, and the requirements of ordinary zippers and special zippers are different. Therefore, when choosing zippers, manufacturers must pay attention to the following. question:
1. Application object of zipper
When purchasing a zipper, the buyer should inform the zipper manufacturer, which type of product the zipper is used on, and whether there are special post-processing requirements for the product, such as ordinary water washing or acid enzyme washing, etc., which is convenient for the zipper manufacturer. According to the requirements of supporting products, the quality and individual requirements of the zipper should be properly adjusted.
2. Length of zipper and allowable tolerance
The meaning of the length of the zipper is different in different zipper forms. Since the zipper is a flexible fabric, it will have a certain expansion rate under the action of external force. When purchasing a zipper to determine the size, it must be considered;
3. Requirements for zipper components
Due to the different environmental protection and ecological requirements of textiles in different countries and regions, the inspection methods are also different, especially the level requirements for azo, no heavy metals, and needle inspection are very different. Therefore, in the procurement of zippers It is best to indicate the country and region where the product is exported, or directly put forward requirements for zipper components.
4. Children's clothing zipper safety tips
In order to ensure the safety of zipper used in children's clothing, we must not only control the chemical composition of zipper products, but also have requirements on metal accessories. For example, it is recommended to use injection molding top and bottom stops, and metal accessories have no sharp edges to avoid sharp corners. Injuries and scratches the skin of children.
Matters needing attention in the use of finished zipper
1. Correct selection and use of sliders
Different sliders have different functions and should be selected correctly. During the washing and processing of clothing, the chemical components of some detergents are worried about corrosion. For example, it is best to use spring pullers with strong anti-washing processing for denim; the zipper is washed in the open state, and the stirring process will use automatic The lock slider receives a sudden pulling force, or some sundries enter the slider, causing damage to the slider.
2. Correct use of zipper accessories
Because the metal upper and lower ends are designed to penetrate the chain belt feet, the sharp parts will be accidentally exposed during the manufacturing and use process, and there are unsafe factors. Therefore, it is recommended that children's clothing choose zippers when choosing zippers. Use injection-molded top and bottom stops. The same goes for zippers used in underwear. For the open-end zipper, you must pay attention to insert the cannula into the bottom of the socket cavity, insert it to the end, and then pull the slider. Deformation or displacement of each element will cause the two sides of the element to not be able to articulate or pull the top of the head. If the cannula is not inserted in place, it is easy to cause damage to the plug-in. The correct method When the puller can't be pulled, please move the puller back a bit, and there will be no problem when pulling it when the intubation is in place.
3. The problem of discoloration of metal zipper teeth
The chemical nature of copper alloys is that when they encounter acid, alkali, oxidant or reducing agent, a chemical reaction will occur, resulting in color discoloration. When the chemicals remaining on the fabric react with the elements, sliders or opening parts of the metal zipper, the zipper may change color, which is reflected in high temperature and high humidity conditions (the sewn product is steam ironed, sealed and packaged). It is more likely to happen in a plastic tape and keep it for a long time, and it is not a quality problem of the zipper itself. The metal zipper has been protected during the production process, but due to the oxidative properties of copper materials, even if the protection is well treated, inevitable things will happen. For example, when copper zipper is used in leather products or wool products, it turns black due to the oxidation of metal. This is because the bleaching agent (ammonium sulfite) in the bleaching process of leather products is chromic acid, tannin acid and wool products. Afterwards, due to incomplete neutralization, gaseous substances remained in the product. In order to prevent oxidation of copper alloys, anti-rust treatment is necessary, but due to the use of strong treatment agents and sealing in polyethylene bags, discoloration will be promoted. The rubber band itself contains sulfide, which is easy to cause the oxidation reaction of copper materials to turn black, so avoid using rubber bands to bind metal zippers.
Remind the manufacturers of metal zippers that it is best not to seal the clothing packaging bag, keep it breathable, and use moisture-proof paper and moisture-proof agent, the effect will be better.