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A kind of waterproof calico coating process
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A printing cloth, coating technology, applied in printing process, transfer printing method, printing and other directions, can solve the problems of paint sticking, unsatisfactory effect, pattern blurring and so on
Active Publication Date: 2021-12-10
湖州五兴达丝绸整理有限公司
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Problems solved by technology
However, in actual production, the temperature of thermal transfer printing will reach about 230°C. This high temperature will soften the coated glue. On the one hand, the paint will stick to the printing paper or roller, and on the other hand, the pattern printed on the cloth Will blur, the effect is very unsatisfactory
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Embodiment 1
[0033] Embodiment one: a kind of waterproof calico coating process, comprises the following steps carried out in sequence:
[0034] a. Fabric dyeing, the whole piece of fabric is dyed into the specified base color.
[0036] c. The cloth is calendered, the temperature is 160°C, the feeding speed of the cloth is 30m / min, and the pressure is 80 tons.
[0037] d. Cloth stereotypes.
[0038] e, pre-coating, the coating is polyurethane with a linking agent, by weight, the specific components include: 35 parts of the linking agent, 180 parts of polyether polyols, 60 par...
Embodiment 2
[0045] Embodiment two: the content of this embodiment is basically the same as that of embodiment one, the difference is that the glue amount of the pre-coated glue in this embodiment is 30g / m 2 Left and right, the amount of glue applied after the glue is 70g / m 2 Left and right, get example 2.
Embodiment 3
[0046] Embodiment three: the content of this embodiment is basically the same as that of embodiment one, the difference is that the glue amount of the pre-coated glue in this embodiment is 40g / m 2 Left and right, the amount of glue applied after the glue is 80g / m 2 Left and right, get example 3.
[0047] Then use commercially available polyurethane paint and waterproofing agent, adopt the same dosage, and make three control groups in the same procedure. Measure the water pressure according to the national standard GB / T 4744-2013, see Table 1 for the specific structure.
[0048] Table 1 Sample water pressure test results table
[0049]
[0050]According to Table 1, it can be seen that the water pressure of the coated cloth made of existing technology and materials is almost the same as that of the product of the present invention before heat transfer printing, but after heat transfer, the coating is damaged and the water pressure drops very much. Soon, the performance of ...
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Abstract
The invention discloses a coating process for waterproof calico, which comprises the following steps in sequence: a. Dyeing the cloth; b. Soaking the cloth in a waterproof working liquid for waterproof treatment; c. Calendering the cloth; d. Shaping the cloth; e. Pre-coating; f, post-gluing; g, drying; h, thermal transfer printing, to obtain a finished product. The invention has the characteristics of being able to obtain a pattern close to the ideal effect under the condition that the water pressure of the cloth and the transfer printing process are normal, so that the product is more beautiful.
Description
technical field [0001] The invention relates to a waterproof printed cloth coating process. Background technique [0002] Coated cloth mainly refers to the use of a special process to coat a layer of material with special functions on the basis of the cloth, which adds special functions to the cloth. The fabrics of some outdoor appliances, such as tent fabrics, umbrella fabrics, etc., are typical waterproof coated fabrics. In recent years, due to user needs and market competition, there are more and more styles of waterproof coated cloth, and the surface patterns are becoming more and more beautiful. Color-fidelity surface patterns are generally obtained by thermal transfer printing. The existing coating printing process is printing first and then gluing. During the gluing process, the tension of the cloth surface is relatively high, and the cloth will stretch. During the subsequent drying process, gluing will cause the cloth to shrink. Although the fabric stretches and s...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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