Anti-seepage multicolor zipper and processing technology thereof

Abstract

The invention relates to an anti-seepage multicolor zipper and a processing technology thereof. The anti-seepage multicolor zipper comprises a zipper basement layer and a polyurethane waterproof layer. The processing technology comprises the following concrete technological steps: firstly, slitting, namely cutting one or several kinds of colored polyurethane film (one waterproof membrane) into stripes by virtue of a slitting machine; secondly, rolling, namely winding waterproof polyurethane slit films slit into the stripes on a fixed rotary table and rolling into a tube shape; thirdly, straightening out and guiding an outlet end of multicolor waterproof polyurethane slit films rolled into the tube shape with a linetype mould; fourthly, introducing the straightened out multicolor waterproof polyurethane slit films into the upper surface of the zipper basement layer, and compounding by virtue of a thermal compounding machine, so that the anti-seepage multicolor zipper is obtained; and fifthly, rolling. The processing technology provided by the invention has the advantages that production efficiency of the anti-seepage colored zipper is greatly improved, and multiple color splicing choices can be provided, so that the same color interval and thickness are guaranteed and parallel straight lines are presented, and overlap deviation of the same color in different printing lengths is also eliminated.

Description

technical field [0001] The invention relates to a zipper, in particular to a water-proof multi-color zipper and its processing technology. Background technique [0002] Waterproof zipper is a branch of nylon zipper. It is a nylon zipper that has undergone some special treatment. Commonly used special treatment methods include: sticking PVC film, sticking TPU film, soaking in waterproof agent, waterproof coating, etc. The purpose of the waterproof zipper is mainly to play a waterproof function when it encounters rainwater. It is widely used and is suitable for: winter clothes, ski clothes, down jackets, nautical clothes, diving suits, tents, car and boat covers, raincoats, motorcycle raincoats, waterproof Shoes, fire suits, bags, jackets, fishing suits and other waterproof related products. [0003] Waterproof zippers are widely used, but the manufacturing process of existing waterproof zippers is still very backward, especially in the field of production of anti-seepage mul...

AI Technical Summary

Problems solved by technology

[0003] Waterproof zippers are widely used, but the existing production technology of waterproof zippers is still very backward, especially in the field of production of anti-seepage multi-color zippers, and its processing technology is at the bottleneck of technology

Traditionally, the coating process of waterproof zippers can only rely on a large amount of manual coating. On the one hand, this method needs to rely on manual flat printing. Due to obvious manual operation errors, it is inevitable that there will be misalignment between adjacent printing lines or uneven line thickness. This causes visual faults and seriously affects the appearance; on the other hand, the traditional manual coating zipper is monotonous in color and cannot realize the function of one-time multi-color coating;

[0004] In addition, the coating length of the artificial waterproof layer is limited, and it can only be coated on the specified length of the layout, and the coating operation of unlimited length cannot be realized. The purely manual printing method is inefficient, time-consuming and labor-intensive

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