The zipper machine manufacturer tells you the precautions for using the zipper
Please pay attention to the following issues during the use of the zipper:
1. Contrasting color zipper (the fabric is inconsistent with the zipper tape, such as white fabric with black and red zipper tape). Please pay attention when buying. The color fastness must be good. The zipper must be tested and confirmed before sewing before it can be put into production;
2. Nylon zippers are used for PVC fabrics or waterproof/ski fabrics (when in light colors). Please note that the fabric will absorb oil stains in the zippers and cause stains on the fabric;
3. All-cotton garments with metal zippers change color after dyeing. Discoloration occurs due to the chemical reaction between the microphone teeth, the separate parts, the slider and the top stop after acid/alkaline dyeing.
4. White-plated nickel-free and rack-plated nickel-free sliders are used for white cotton materials (such as wool products) that are easy to change color (such as yellowing, black, etc.), mainly because they are not cleaned after bleaching and dyeing , Caused by reaction with chemical residues.
5. 8#, 10# resin, metal sliders, or large-volume pull tabs, round pull tabs do not work well for needle detection. On the one hand, it is due to its large volume, and the round pull tab will generate a magnetic field when testing the needle, which will affect the effect of the needle detection test.
The microphone teeth of the metal zipper turn black and the discolored microphone teeth will pollute the clothing. Once the copper alloy is oxidized, it will turn black…Do not seal the packaging bag, keep its air permeability, and be careful not to be full of moisture (use Anti-moisture paper, anti-moisture agent, the effect will be better).
The dye on the zipper may react with the plasticizer, bonding agent, oil agent and other components in the resin coating of polyethylene, synthetic leather, cloth, etc., and the phenomenon of migration may occur. The finished products should be separated by paper, and Pay attention to the save state.
Due to the use of dyed brown zipper or black zipper, the contact part of the cloth and the zipper will be contaminated. In the dyeing process of clothing, the remaining acidic substances or oxidants will react chemically, so that the contact part of the zipper and the clothing may be contaminated. Please use fully washed cloth and materials.
9. Washing process
1) After washing and processing, the color of the zipper’s teeth or chemicals corroded by washing processing will weaken the slider. When washing and processing, it is best to use a spring-head zipper with strong resistance to washing. In order to prevent residual acid in the washing process, please wash thoroughly to a neutral state. With different processing types or types of medicines, the fabric will weaken, so experiments must be done before washing.
2) After washing and processing, the self-locking slider is damaged. The zipper is washed while the zipper is open, and debris will enter the slider, making it easy to break, so please do the washing with the zipper closed.