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Preparation process of polyethylene coated paper

A preparation process and technology of coated paper, applied in the field of papermaking, can solve the problems of large thickness of polyethylene coated layer, low peeling strength of coated paper, high production cost, etc., and achieve qualified performance, easy acquisition and simple processing Effect

Inactive Publication Date: 2016-03-23
ANQING SHENGHUA PAPER PACKAGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the traditional production method of coated paper, polyethylene is directly coated on the surface of the substrate, resulting in a thicker polyethylene coating layer, and the bonding ability between the polyethylene coating layer and the substrate layer is relatively low. Poor, resulting in low peel strength of the coated paper, poor stability, and higher production costs

Method used

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  • Preparation process of polyethylene coated paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Mixing and melting of raw materials: mixing polymers, stabilizers, lubricants, plasticizers and nanomaterials, heating to a molten state, the stabilizer is soluble starch, the lubricant is stearic acid, the plasticizer The plasticizer is glycerol, and the mass fractions of polymers, stabilizers, lubricants, plasticizers and nanomaterials are 80.7%, 6%, 0.2%, 0.8%, and 0.5%, respectively, and then added to the The hopper of the film machine.

[0019] (2) Base paper unwinding and corona: select the base paper with the specified specifications, place it on the unwinding guide roller, and perform corona treatment after connecting.

[0020] (3) High-temperature extrusion and coating: Extrude the raw materials in the hopper of the coating machine at high temperature, filter and defoam, and coat the film onto the surface of the base paper. The temperature of the coating opening cylinder is set at 205°C, and the temperature of the film head is Set at 350°C, the coating amo...

Embodiment 2

[0022] Example 2: The rest are the same as in Example 1, except that in the step (1), the mass fractions of the polymers, stabilizers, lubricants, plasticizers and nanomaterials are 76%, 7%, 0.5%, respectively. %, 1% and 1%; in the step (3), the temperature of the coating opening cylinder is set at 220-350°C, the temperature of the film head is set at 352°C, and the coating amount of the raw material is 18g / m 2 ; In the step (4), the coating cooling and shaping temperature is controlled at 13°C.

Embodiment 3

[0023] Example 3: The rest are the same as in Example 1, except that in the step (1), the mass fractions of the polymers, stabilizers, lubricants, plasticizers, and nanomaterials are 76%, 10%, and 1.2%, respectively. %, 3% and 2.5%; in the step (3), the temperature of the coating opening cylinder is set to 300°C, the temperature of the film head is set to 356°C, and the coating amount of the raw material is 20g / m 2 ; In the step (4), the coating cooling and setting temperature is controlled at 18°C.

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Abstract

The invention discloses a preparation process of polyethylene coated paper and relates to the technical field of paper making. The preparation process comprises the process steps of raw material mixing, body paper uncoiling, corona, high temperature extrusion, film spraying, hydraulic pressure, cooling for formalization and the like. According to the preparation process method, environment-friendly type polyethylene is selected as the master batch, the characteristics of paper such as the barrier property, the thermal sealing property and the toughness are greatly improved, soluble starch is adopted as the stabilizing agent in the preparation process of the raw materials, stearic acid is selected as the lubricant, glycerin is selected as the plasticizer, water-based polyolefin is further added, the raw materials are saved, cost is lowered, stability of the polyethylene coated paper is improved, all performance of the obtained polyethylene coated paper can be qualified and even exceed the standard requirements by optimizing matching of the raw materials in the preparation process, and the preparation process is simple and easy to grasp.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a preparation process of coated paper. Background technique [0002] Coated paper has been widely used in advertising, printing, packaging, electronics and other industries due to its advantages of moisture-proof, oil-proof, and good isolation effect. In the traditional method of making coated paper, polyethylene is directly coated on the surface of the substrate, resulting in a thicker polyethylene coating layer, and the bonding ability between the polyethylene coating layer and the substrate layer is relatively low. Poor, resulting in low peel strength of the coated paper, poor stability, and higher production costs. [0003] Therefore, it is necessary to provide a coated paper and a manufacturing method thereof. The coated paper prepared by the method has high peel strength and good stability, and can reduce the production cost of the coated paper. Contents of the inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H23/64D21H19/10D21H19/22D21H21/14
CPCD21H23/64D21H19/10D21H19/22D21H21/14
Inventor 江导友
Owner ANQING SHENGHUA PAPER PACKAGING
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