Hot press molding process of paper tray

A technology of thermoforming and pressure forming, which is applied in the direction of textiles and papermaking, etc., can solve the problems of high cost, white pollution, non-conforming to environmental protection, etc., and achieve the effects of low production cost, product protection, and recycling

Pending Publication Date: 2021-06-29
ZRP PRINTING GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For the packaging of blister card and blister cover, since most of the blister covers currently on the market are made of non-degradable plastic covers, improper disposal after consumers disassemble the package will easily produce white pollution, which is not necessary. In line with the concept of green environmental protection, even if there are degradable plastic products, they also have certain limitations and high costs

Method used

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  • Hot press molding process of paper tray
  • Hot press molding process of paper tray
  • Hot press molding process of paper tray

Examples

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Embodiment Construction

[0023] A heat press molding process for a paper tray, comprising the following steps: feeding, placing flat paper between an upper mold 1 and a lower mold 2; heating, heating the upper mold 1 or lower mold 2 to raise the temperature to Temperature T; pressure molding, press the upper mold 1 to the lower mold 2, and control the pressure to maintain the pressure P within the time t; demould, separate the upper mold 1 and the lower mold 2, so as to obtain the formed paper Tray 10.

[0024] Preferably, long-fiber paper with an interlayer bonding force of not less than 300gsm is used for the plane paper, and white cardboard is especially suitable.

[0025] Preferably, the temperature T is between 150°C and 180°C.

[0026] Preferably, the time t is between 1.5 seconds and 3 seconds.

[0027] Preferably, the pressure P is between 5Mpa and 10Mpa.

[0028] The above-mentioned thermocompression forming process of a paper tray also includes the following steps: printing, printing the ...

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PUM

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Abstract

The invention provides a hot press molding process of a paper tray, which is characterized by comprising the following steps of feeding: placing plane paper between an upper die and a lower die, heating: heating the upper die or the lower die to a temperature T, performing pressure forming, pressing the upper die onto the lower die, and controlling the pressure to be maintained at the pressure P within the time t, and demolding, specifically, separating the upper die and the lower die, and therefore acquiring the formed paper tray. On the premise that the paper is not damaged, short-time high temperature and high pressure are given to the paper to enable the paper to form a certain shape to replace most plastic suction covers in the market at present, plastic in part of packages is replaced with more environment-friendly paper, and therefore use of the plastic is reduced, and the process is environmentally friendly.

Description

【Technical field】 [0001] The invention relates to the field of product packaging, in particular to a thermocompression forming process for paper trays. 【Background technique】 [0002] For the packaging of blister card and blister cover, since most of the blister covers currently on the market are made of non-degradable plastic covers, improper disposal after consumers disassemble the package will easily produce white pollution, which is not necessary. In line with the concept of green environmental protection, even if there are degradable plastic products, they also have certain limitations and problems of high cost. 【Content of invention】 [0003] The technical problem to be solved by the invention is to provide a heat-press forming process for paper trays that is environmentally friendly and can reduce the use of plastics. [0004] The purpose of the present invention is achieved like this: [0005] A heat press forming process for a paper tray, comprising the followin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21J3/00
CPCD21J3/00
Inventor 高康明张文波曾景添汪洋
Owner ZRP PRINTING GRP CO LTD
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