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A kind of adhesive material for controlling the flatness of paper and its application method

An application method and flatness technology, applied in the field of backing materials, can solve the problems of paper curling surface and unevenness, and achieve the effect of high applicability, low cost, and solving paper surface unevenness.

Active Publication Date: 2021-08-10
SHANGHAI RUITU NEW MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems that the existing adhesive material and its feeding method easily cause curling and uneven surface of the paper, the invention provides the adhesive material for controlling the flatness of the paper, its application and its use method

Method used

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  • A kind of adhesive material for controlling the flatness of paper and its application method
  • A kind of adhesive material for controlling the flatness of paper and its application method
  • A kind of adhesive material for controlling the flatness of paper and its application method

Examples

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Embodiment 1

[0028] Embodiment provides a kind of adhesive material for controlling paper flatness, by mass percentage, the raw material of adhesive material comprises:

[0029]

[0030] In this embodiment, natural latex and polar functional groups are grafted; auxiliary agents include defoamers, preservatives and thickeners; the mass ratio of thickeners to auxiliary agents is 1:9; by mass percentage, except Ketone additives include: ethanolamine 60%, dimethylbiguanide 30%, propylenediamine and citric acid 10%.

[0031] According to the above-mentioned raw material proportioning, the present embodiment provides a kind of feeding process of the adhesive material of controlling the flatness of paper, comprising the following steps:

[0032] Step 1. Laminate the transfer cardboard on the laminating machine. The laminating speed is 130m / min. During the laminating process, it passes through four stages of ovens.

[0033] Step 2: After the lamination is completed, roll up the transfer cardbo...

Embodiment 2

[0037] The embodiment of the present invention provides a kind of adhesive material for controlling the flatness of paper. In terms of mass percentage, the raw materials of the adhesive material include:

[0038]

[0039] In this embodiment, natural latex and polar functional groups have been grafted; auxiliary agents include defoamers, preservatives and thickeners; the mass ratio of thickeners to auxiliary agents is 3:16; Additives include: ethanolamine 50%, dimethylbiguanide 30%, propylenediamine and citric acid 20%.

[0040] According to the above-mentioned raw material proportioning, the present embodiment provides a kind of feeding process of the adhesive material of controlling the flatness of paper, comprising the following steps:

[0041] Step 1. Laminate the transfer cardboard on the laminating machine. The laminating speed is 130m / min. During the laminating process, it passes through four stages of ovens.

[0042] Step 2: After the lamination is completed, roll u...

Embodiment 3

[0047] The embodiment of the present invention provides a kind of adhesive material for controlling the flatness of paper. In terms of mass percentage, the raw materials of the adhesive material include:

[0048]

[0049]

[0050] In this embodiment, natural latex and polar functional groups have been grafted; auxiliary agents include defoamers, preservatives and thickeners; the mass ratio of thickeners to auxiliary agents is 3:16; Additives include: ethanolamine 30%, dimethylbiguanide 35%, propylenediamine and citric acid 35%.

[0051] According to the above-mentioned raw material proportioning, the present embodiment provides a kind of feeding process of the adhesive material of controlling the flatness of paper, comprising the following steps:

[0052] Step 1. Laminate the transfer cardboard on the laminating machine. The laminating speed is 130m / min. During the laminating process, it passes through four stages of ovens.

[0053] Step 2: After the lamination is compl...

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Abstract

The present invention is a back glue material for controlling the flatness of paper and its application method. The raw materials of the back glue material include styrene-acrylic acid copolymer emulsion, self-crosslinking acrylic acid, sodium alginate, calcium chloride, ketone-removing additive, auxiliary agent Water and natural latex, 5-10% by mass of styrene-acrylic acid copolymer, 10-15% by mass of self-crosslinking acrylic acid, 0.5-1.5% by mass of sodium alginate, chlorinated The mass component of calcium is 1.5-2%, the mass component of ketone-removing additive is 2-3%, the mass component of auxiliary agent is 0.03-0.2%, the mass component of water is 3-7%, and the mass component of natural latex The mass fraction is 30‑40%. The adhesive used to control the flatness of paper and its application method in the present invention greatly solve the problems of curling of paper and uneven surface of paper caused by the existing adhesive. The components of adhesive of the present invention are low in cost and simple in synthesis process , with high applicability.

Description

technical field [0001] The invention relates to a back glue material, in particular to a back glue material for controlling the flatness of paper and an application method thereof. Background technique [0002] At present, in the packaging and printing industry, it is very common for paper to appear curled and uneven. The root cause of this situation is the difference in moisture content on both sides of the paper. The moisture content of the paper is related to the base paper itself, processing technology, production and storage environment and many other factors. They are all related, but the current common practice is that the paper mainly adopts the method of composite back coating in the processing process, and coats a layer of adhesive material on the back of the paper, and adjusts the moisture content of the paper by adjusting the oven temperature, vehicle speed, and adhesive content. Adjustment and control, therefore, how to adjust the formulation of the adhesive mat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H19/14D21H19/20
CPCD21H19/14D21H19/20
Inventor 刘念张华
Owner SHANGHAI RUITU NEW MATERIALS TECH CO LTD
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