Waterproof compound fabric and preparing method thereof

Abstract

The invention discloses a waterproof compound fabric and a preparing method thereof. The compound fabric has four layers which include a fabric layer, a thermoplastic polyurethane layer, a fill cotton layer and a fabric layer from top to bottom; the compound fabric is subject to ultrasonic seam quilting through ultrasonic seam quilting equipment, and a laser carving machining knurling roll is installed on the ultrasonic seam quilting equipment. The waterproof compound fabric has the beneficial effect of resisting washing, and the laser carving machining knurling roll can guarantee the yield and the attractiveness of products; the thickness of the thermoplastic polyurethane layer is not smaller than 0.04 mm and does not contain fillers, so that the fabric is better in waterproof effect and not likely to fold, and the product attractiveness is guaranteed; and in addition, the hydrostatic pressure of the product can reach 3000 mmH2O or above, and the waterproof effect is better.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a waterproof composite fabric and a preparation method thereof. Background technique [0002] At present, the waterproof composite fabric process of domestic ultrasonic quilting is generally to superimpose three layers of upper fabric, filling cotton and bottom fabric, and press them with an ultrasonic quilting machine. film processing. The roller coating process specifically uses polyurethane or moisture-curing polyurethane adhesive as the adhesive, and uses a rolling anilox roller as the gluing tool to coat polyurethane or moisture-curing polyurethane adhesive on the surface of the thermoplastic polyurethane waterproof membrane to form a uniform distribution. The joints are then pressed with rollers and heated and dried, so that the waterproof membrane and the fabric are combined into one, and after the adhesive is cured, it becomes an ultrasonic quilted waterproof composite ...

AI Technical Summary

Problems solved by technology

[0003] 1. The fabric is sunken where the convex points of the ultrasonic flower roller are pressed, and the waterproof membrane cannot fit tightly, resulting in cavitation. In this way, when the home textile product is washed, the friction between the fabrics makes the fabric and the film separate from the cavitation first. And gradually spread, and finally home textile products lose their waterproof function, and the fabric is not resistant to washing;

[0004] 2. The hydrostatic pressure that waterproof fabrics can withstand is low, generally only 1000-2000mmH 2 O, the waterproof performance of waterproof fabric is poor;

[0005] 3. In order to make home textile products feel soft, the thickness of the thermoplastic polyurethane waterproof film currently used is usually between 0.01--0.06mm. Due to the difference in shrinkage between the waterproof film and the fabric, the film will form wrinkles on the surface of the fabric after washing, which greatly affects the aesthetics of the product;

[0006] 4. The embossing rollers equipped with the existing ultrasonic quilting machine are all manufactured by etching method. This kind of embossing roller has low precision, and the surface pattern of the pressed fabric is different in depth, uneven in size, non-standard in shape, and the reject rate is too high.

Images