Glassine body paper coating press-polishing process

A glassine base paper and coating technology, which is applied in paper, papermaking, textiles and papermaking, etc., can solve the problems that cannot meet the performance requirements of existing paper, and does not specifically involve this aspect, so as to increase the waterproof and oilproof effect and improve The surface is waterproof and oil-proof, and the effect of good preparation effect

Inactive Publication Date: 2018-05-29
YIWU YINAN PAPER IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing glassine paper differs from other papers in addition to the different proportioning materials, which are mainly changed in the two processes of coating and calendering. Among them, the cost of coating greatly affects the performance of glassine base paper. The ratio of the additives involved and the properties of the materials are directly linked to the performance of the paper such as waterproof, soft, and environmentally friendly. At the same time, the temperature, pressure, and rotational speed involved in the calendering process are exquisite, and there are many appropriate and specific parameters. According to evidence, most of the crafts on the market do not specifically involve this aspect, and they all maintain the original processing technology. With the increasing proportion of glassine paper in the market, the original craft demand has already Cannot meet the performance requirements of existing paper

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A glassine base paper coating and calendering process includes the following steps:

[0017] 1) Coating preparation: First, add 20g cationic starch, polyvinyl alcohol, and acrylic resin to each 100g of distilled water in a ratio of: 3.5: 2:2, and mix them evenly. The gelatinization time is 30 minutes. Continue to raise the temperature to 90℃, after the stirring is completed, reduce the temperature to 60℃ for later use;

[0018] 2) Preparation of glazing oil: put 30g of waterproof polyacrylate emulsion, active diluent, silicone oil, modified rosin resin, and wax liquid in 100g of distilled water at 1.5:6:2:5:2:4.5 After mixing, add 5g each of water-based defoamer and water-based dispersant, stir for 20 minutes, then let stand for 10 minutes and stir again, repeat twice;

[0019] 3). In-pulp sizing: In the process before the coating of the base pulp, add isooctyl acrylate with a weight ratio of 5% to dry pulp, and alkyl ketene dimer with a weight ratio of 2% to dry pulp. A sty...

Embodiment 2

[0024] A glassine base paper coating and calendering process includes the following steps:

[0025] 1) Coating preparation: First, add 20g cationic starch, polyvinyl alcohol, and acrylic resin to every 100g of distilled water in the ratio of: 4.5:3.5:2, and mix them evenly. The gelatinization time is 30min. During the stirring process Continue to raise the temperature to 90℃, after the stirring is completed, reduce the temperature to 60℃ for later use;

[0026] 2) Preparation of glazing oil: put 30g of waterproof polyacrylate emulsion, active diluent, silicone oil, modified rosin resin, and wax liquid in 100g of distilled water at 1.5:7:3:5:1:3 After mixing, add 5g each of water-based defoamer and water-based dispersant, stir for 20 minutes, then let stand for 10 minutes and stir again, repeat twice;

[0027] 3). In-pulp sizing: In the process before the coating of the base pulp, add isooctyl acrylate with a weight ratio of 5% to dry pulp and alkyl ketene dimer with a weight ratio o...

Embodiment 3

[0032] A glassine base paper coating and calendering process includes the following steps:

[0033] 1) Coating preparation: First, add 20g cationic starch, polyvinyl alcohol and acrylic resin in a ratio of 3:2.5:2 per 100g of distilled water and mix them evenly. The gelatinization time is 30min. During the stirring process Continue to heat up to 85°C, after stirring, cool down to 50°C for later use;

[0034] 2) Preparation of glazing oil: Put 30g of waterproof polyacrylate emulsion, reactive diluent, silicone oil, modified rosin resin, and wax liquid in 100g of distilled water at 1:5:2:5:1:3 After mixing, add 5g each of water-based defoamer and water-based dispersant, stir for 20 minutes, then let stand for 10 minutes and stir again, repeat twice;

[0035] 3). In-pulp sizing: In the previous process of coating the base pulp, add isooctyl acrylate with a weight ratio of 3% absolute dry pulp, and alkyl ketene dimer with a weight ratio of 3% absolute dry pulp. A styrene-acrylic emulsi...

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PUM

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Abstract

The invention discloses a Glassine body paper coating press-polishing process which comprises: 1, coating preparation; 2, gloss oil preparation; 3, internal sizing; 4, paper pulp drying; 5, paper coating press-polishing. The Glassine body paper coating press-polishing process has the effects of simple process and good waterproof and oil-proof effects.

Description

Technical field [0001] The invention relates to a special paper processing and preparation process, and specifically relates to a glassine base paper coating and calendering process. Background technique [0002] Glassine base paper is a relatively common special paper, which is processed by special materials and special processes. It has the characteristics of moisture resistance, high temperature resistance, waterproof and dustproof, and is widely used in medicine, food, and special isolation protection. The outer packaging of items can also be used in industry groups such as adhesive tape and laser anti-counterfeiting codes. [0003] The difference between the existing glassine paper and other papers, except for the different proportioning materials, is mainly changed in the two processes of coating and calendering. Among them, the cost of coating greatly affects the performance of the glassine base paper. The proportions and material properties of the additives involved are di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H23/46D21H21/14
CPCD21H23/46D21H21/14
Inventor 楼旭军冯沾善冯小义
Owner YIWU YINAN PAPER IND CO LTD
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