Film-coating process for paper cup material

A technology for laminating and paper cups, which is applied in the field of laminating technology for paper cup materials, can solve the problems of leakage of finished paper cups, delamination of polyethylene film, and difficulty in recycling plant fibers.

Inactive Publication Date: 2017-12-15
ANHUI YIBAILI ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the processing technology of polyethylene coating to the base paper surface, it is a key step to reasonably control the bonding degree between the base paper and the polyethylene film. If the bond between the base paper and the polyethylene film is too small, it will cause the polyethylene film to delaminate , resulting in leakage of the finished paper cups; if the bond between the base paper and the polyethylene film is too large, it will be difficult to separate the polyethylene film from the paper base during the recycling process after the paper cups are discarded, resulting in plants in the base paper. Fiber is difficult to be recycled efficiently, resulting in a waste of a lot of valuable plant resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A film coating process for paper cup materials, comprising the steps of:

[0030] (1) unwinding paper

[0031] Load the base paper into the unwinding mechanism, and the laminating production line pulls the unwinding mechanism at a high speed to feed the paper. During the unwinding process, the unwinding tension of the base paper is controlled to 30kg / m 2 ;

[0032] (2) Corona treatment

[0033] Carry out corona treatment to the printing surface of the base paper that conveys, and the electric current of described corona treatment is 4A;

[0034] (3) extrusion compounding

[0035] The polyethylene particles are heated in the barrel of the extruder, melted and extruded to form a polyethylene film with a thickness of 600 μm, and then the high-speed conveyed base paper printing surface and the polyethylene film are compounded through a high-speed composite roller to obtain a coating film paper, the barrel section temperature of the extruder is 200°C, the die section tem...

Embodiment 2

[0049] A film coating process for paper cup materials, comprising the steps of:

[0050] (1) unwinding paper

[0051] Load the base paper into the unwinding mechanism, and the lamination production line pulls the unwinding mechanism at a high speed to feed the paper. During the unwinding process, the unwinding tension of the base paper is controlled to 50kg / m 2 ;

[0052] (2) Corona treatment

[0053] Carry out corona treatment to the printing surface of the base paper that conveys, and the electric current of described corona treatment is 6A;

[0054] (3) extrusion compounding

[0055] The polyethylene particles are heated in the barrel of the extruder, melted and extruded to form a polyethylene film with a thickness of 650 μm, and then the printing surface of the high-speed conveyed base paper and the polyethylene film are combined through a high-speed composite roller to obtain a coating film paper, the barrel section temperature of the extruder is 350°C, the die sectio...

Embodiment 3

[0069] A film coating process for paper cup materials, comprising the steps of:

[0070] (1) unwinding paper

[0071] Load the base paper into the unwinding mechanism, and the lamination production line pulls the unwinding mechanism at a high speed to feed the paper. During the unwinding process, the unwinding tension of the base paper is controlled to 40kg / m 2 ;

[0072] (2) Corona treatment

[0073] Carry out corona treatment to the printing surface of the base paper that conveys, and the electric current of described corona treatment is 5A;

[0074] (3) extrusion compounding

[0075] The polyethylene particles are heated in the barrel of the extruder, melted and extruded to form a polyethylene film with a thickness of 620 μm, and then the printing surface of the high-speed conveyed base paper and the polyethylene film are compounded through a high-speed composite roller to obtain a coating film paper, the barrel section temperature of the extruder is 250°C, the die sect...

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Abstract

The invention provides a film-coating process for a paper cup material. The film-coating process comprises the following steps: (1) unreeling base paper, and controlling the tension of unreeling to be 30 to 50 kg / m2; (2) subjecting the printing surface of conveyed base paper to corona treatment under the current of 4 to 6 A; (3) preparing a polyethylene film with a thickness of 600 to 650 [mu]m, and compounding the printing surface of the conveyed base paper with the polyethylene film through a compound roller running at a high speed under the pressure of 100 to 130 kg / m2 so as to obtain film-coated paper; (4) cooling the film-coated paper by using circulating water with a temperature of 10 to 15 DEG C; (5) carrying out reeling, and controlling the tension of reeling to be 15 to 40 kg / m2; and (6) subjecting paper rolls to storage and transportation. The finished paper cup made of the film-coated paper provided by the invention has good anti-leakage performance; meanwhile, after recovery of the waste paper cup, the plant fiber in the paper cup can be recycled with high efficiency, so valuable plant fiber resources are saved.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a coating process for paper cup materials. Background technique [0002] The paper cup material is usually composed of base paper and polyethylene (PE) film coated on the surface of the base paper. Paper cup materials have the advantages of light texture, anti-leakage, beautiful printing, and convenient processing. Paper cups made of paper cup materials can be used to hold tea, juice, coffee, milk, soybean milk, porridge and other beverages. Paper cups are hygienic and light And other characteristics, are widely used in daily life and office. [0003] In the processing technology of polyethylene coating to the base paper surface, it is a key step to reasonably control the bonding degree between the base paper and the polyethylene film. If the bond between the base paper and the polyethylene film is too small, it will cause the polyethylene film to delaminate , resulti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/15B32B37/10B32B37/08B32B38/00
CPCB32B37/153B32B37/08B32B37/10B32B38/0008
Inventor 陈茂圣江军刘钊孙艳青孙涛林茂徐寒光刘晓施顺根
Owner ANHUI YIBAILI ENVIRONMENTAL TECH CO LTD
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