Non-woven fabric hot melt adhesive tape as well as coating method and coating device thereof

A technology of hot-melt adhesive tape and coating method, which is applied in the directions of lamination device, chemical instrument and method, lamination auxiliary operation, etc., to achieve the effect of ensuring stickiness, not easy to peel, and preventing hot-melt adhesive from oozing

Pending Publication Date: 2017-12-29
ZHEJIANG HAICHUANG MEDICAL DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] In view of this, in order to solve the problems existing in the existing hot-melt adhesive and non-woven fabric coating process,

Method used

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  • Non-woven fabric hot melt adhesive tape as well as coating method and coating device thereof
  • Non-woven fabric hot melt adhesive tape as well as coating method and coating device thereof
  • Non-woven fabric hot melt adhesive tape as well as coating method and coating device thereof

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Embodiment Construction

[0051] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0052] Such as figure 1 Shown is a schematic structural view of an embodiment of a coating device for a non-woven hot-melt adhesive tape of the present invention. The coating device of the non-woven fabric hot-melt adhesive tape of the present embodiment comprises:

[0053]The first composite mechanism: use hot melt adhesive to composite the release paper A and the release paper B together. Specifically, the first composite mechanism of this embodiment includes the first composite roller 1, the second composite roller 3, the first unwinding mechanism 2 and the second unwinding mechanism 4, the first composite roller 1 and the second composite roller The rollers 2 are arranged co...

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PUM

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Abstract

The invention relates to a coating method of a non-woven fabric hot melt adhesive tape. The coating method comprises the following steps: (1) recombining for the first time: enabling release paper A and release paper B to be recombined together by utilizing hot melt adhesive, and preserving heat to enable the hot melt adhesive to keep a fluid state, wherein the release force between the release paper B and the hot melt adhesive is less than the release force between the release paper A and the hot melt adhesive; (2) peeling off the release paper B: peeling off the release paper B and the hot melt adhesive to enable one side of the hot melt adhesive to be exposed to become a to-be-recombined surface; (3) recombining for the second time: enabling non-woven fabric and the to-be-recombined surface of the hot melt adhesive to be recombined, cooling simultaneously to enable the hot melt adhesive to be solidified so as to obtain the non-woven fabric hot melt adhesive tape; and (4) rolling-up: rolling-up the obtained non-woven fabric hot melt adhesive tape. The invention further discloses a coating device of the non-woven fabric hot melt adhesive tape, and the obtained non-woven fabric hot melt adhesive tape has the following characteristics: (1) by enabling the hot melt adhesive and the non-woven fabric to be combined together, the dressing meets hydroscopicity and air permeability simultaneously; and (2) as the hot melt adhesive is recombined on the non-woven fabric, not only is the hot melt adhesive difficult to peel off, but also adhesive overflowing cannot happen.

Description

technical field [0001] The invention belongs to the technical field of coating, in particular to a non-woven hot-melt adhesive tape, a coating method and a coating device thereof. Background technique [0002] Wounds place high demands on the water absorption and air permeability of the dressing. Dressings on the market are either absorbent but lack air permeability, or breathable but lack water absorption. It is difficult to meet both water absorption and air permeability requirements, especially air permeability. Most of the base materials of hot melt adhesive dressings on the market are polyurethane films and PE films, which have poor air permeability. [0003] Non-woven fabric, also known as non-woven fabric, is composed of directional or random fibers. It is a new generation of environmentally friendly materials. It is called cloth because of its appearance and certain properties. Non-woven fabrics have the characteristics of moisture-proof, breathable, flexible, ligh...

Claims

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Application Information

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IPC IPC(8): B32B37/12B32B38/10B32B37/08A61F13/02
CPCA61F13/0253A61F13/0289B32B37/08B32B37/1284B32B38/10B32B2307/726B32B2307/724
Inventor 顾闻邵顺牛强钱佳喜
Owner ZHEJIANG HAICHUANG MEDICAL DEVICE CO LTD
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