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Water painting device and water painting method for roll paper PUR (Polyurethane Rerctive) gum film laminator

A technology of roll paper and laminating machine, which is applied to the surface coating liquid device, coating, printing machine, etc., can solve the problems affecting the quality of the final product, shorten the delivery cycle, improve the quality, and speed up the moisture The effect of the reaction

Inactive Publication Date: 2015-04-29
河北海贺胜利印刷机械集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the printing industry, 48 hours is a relatively long time, which will affect the process of the subsequent printing process. Putting the paper after gluing for 48 hours will also affect the quality of the final product

Method used

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  • Water painting device and water painting method for roll paper PUR (Polyurethane Rerctive) gum film laminator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A method for coating water with PUR glue on a web, using the water coating device of the above-mentioned PUR glue coating machine for web, specifically comprising the following steps:

[0032] The first step is to determine the humidity of the environment and the humidity of the material

[0033] Measure the air humidity S1 of the current working environment by a hygrometer to be 30%, and then measure the humidity S2 of the material to be composited. The humidity of the paper used in daily production is 6%, and S2 is 6% in the scheme of this application;

[0034] The second step is to determine the amount of water applied

[0035] According to the environmental humidity S1 measured in the first step is 30%, the material humidity S2 is 6%, and the amount of water applied M is determined to be 10g / cm 2 ;

[0036] The third step is to apply water

[0037] Place the composite material on the second unwinding mechanism 6, when the composite material passes through the wat...

Embodiment 2

[0039] A method for coating water with PUR glue on a web, using the water coating device of the above-mentioned PUR glue coating machine for web, specifically comprising the following steps:

[0040] The first step is to determine the humidity of the environment and the humidity of the material

[0041] Measure the air humidity S1 of the current working environment by a hygrometer to be 40%, and then measure the humidity S2 of the material to be composited;

[0042] The second step is to determine the amount of water applied

[0043] According to the environmental humidity S1 measured in the first step is 40%, the material humidity S2 is 6%, and the amount of water applied M is determined to be 8g / cm 2 ;

[0044] The third step is to apply water

[0045] Place the composite material on the second unwinding mechanism 6, when the composite material passes through the water application mechanism 4, apply water to the composite material by the water application mechanism 4, and...

Embodiment 3

[0047] A method for coating water with PUR glue on a web, using the water coating device of the above-mentioned PUR glue coating machine for web, specifically comprising the following steps:

[0048] The first step is to determine the humidity of the environment and the humidity of the material

[0049] Measure the air humidity S1 of the current working environment by a hygrometer to 50%, and then measure the humidity S2 of the material to be composited;

[0050] The second step is to determine the amount of water applied

[0051] According to the environmental humidity S1 measured in the first step is 50%, the material humidity S2 is 6%, and the amount of water applied M is determined to be 6g / cm 2 ;

[0052] The third step is to apply water

[0053] Place the composite material on the second unwinding mechanism 6, when the composite material passes through the water application mechanism 4, apply water to the composite material by the water application mechanism 4, and th...

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PUM

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Abstract

The invention discloses a water painting device for a roll paper PUR (Polyurethane Rerctive) gum film laminator. The water painting device comprises a first unwinding mechanism and a second unwinding mechanism, wherein a gumming mechanism and a compounding mechanism are sequentially arranged behind the first unwinding mechanism; a guide roller and a water painting mechanism are sequentially arranged behind the second unwinding mechanism; the water painting mechanism is positioned at one side of the compounding mechanism. The invention further discloses a water painting method for the roll paper PUR gum film laminator, which specifically comprises three steps of determining environment humidity and material humidity, determining water painting amount and painting water. According to the water painting device for the roll paper PUR gum film laminator disclosed by the invention, the surface of a to-be-compounded material can be painted with water in advance; according to the water painting method for the roll paper PUR gum film laminator disclosed by the invention, the surface of the to-be-compounded material is painted with water in advance in accordance with the humidity of the to-be-compounded material and the working environment, so that the reaction between PUR and water content is accelerated, the curing time of the PUR is reduced, the production efficiency is improved, the delivery cycle is shortened, and the quality of compounded products is improved.

Description

technical field [0001] The invention belongs to the technical field of printing equipment, and in particular relates to a water coating device for a roll paper PUR glue laminating machine. The present invention also relates to a water coating method using the above water coating device. Background technique [0002] PUR (Polyurethane Rerctive) is called moisture-curing reactive polyurethane hot melt adhesive. Its mechanism of action is that the polyurethane prepolymer reacts with moisture in the air, solidifies and cross-links to form a stable chemical structure. [0003] In actual work, it is necessary to control the temperature and humidity of the work site to ensure that the glue reacts with the moisture in the air. Generally, 50%-80% of the bond strength is reached after 6 hours, and the final bond strength is reached after 48 hours. In order to carry out the next process of production. [0004] For the printing industry, 48 hours is a relatively long time, which will ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F23/08B05C1/12B05C5/00B05C13/02B05D1/28B05D1/02
Inventor 李乾宁谭锐民樊建林
Owner 河北海贺胜利印刷机械集团有限公司
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