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A local transfer process

A process and local technology, applied in the field of local transfer process, can solve the problems of inaccurate overprinting in the subsequent process, easy discharge of harmful sewage, large pollution in the aluminum washing process, etc. The effect of reducing toughness

Active Publication Date: 2022-07-05
ZHEJIANG YAXIN PACKAGE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When printing, some products need to be hollowed out and reserved for post-process overprint processing, such as inkjet code, which requires paper to leave hollowed out patterns or characters before printing. The traditional hollowing method is realized on the PET base film, and then transferred to the paper. Hollowing on the PET base film is also called partial aluminum washing, that is, the PET base film is coated, molded, aluminum plated, aluminum washed and slit to obtain a partially washed aluminum film. Accurate, high waste rate
The total cost is high, and the aluminum washing process is more polluting, and it is easy to discharge harmful sewage, polluting the environment, and the aluminum washing process is likely to cause harm to the operator

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A local transfer process, comprising the following steps in sequence:

[0019] Step 1: PET base film coating: uniformly coat the release layer coating on the PET base film through the ceramic mesh roller of the coating machine, and bake at high temperature through the oven with five sections. The speed of the coating machine It is 105~115m / min, the coating weight of the release layer coating in each square PET base film is 5.5~6.5g, and the temperature of the first section of the box is 20 to 25% lower than the temperature of the second section of the box. , the temperature of the third box is 10-20% higher than the temperature of the second box, the temperature of the fourth box is equal to the temperature of the third box, and the temperature of the fifth box is equal to the temperature of the second box The temperature of the five-section box is 90°C, 120°C, 140°C, 140°C, and 120°C respectively;

[0020] Step 2: Molding: Press the laser pattern on the laser-molded p...

Embodiment 2

[0027] Like the partial transfer process described in Example 1, this example has the following differences: the transfer coating includes the following components: 18.7 parts by mass of acrylate copolymer, 9.74 parts by mass of cellulose acetate, 9.14 parts by mass of cellulose acetate parts of cellulose acetate propionate, 9.07 parts by mass of cellulose acetate butyrate, 19.1 parts by mass of ethyl acetate, 39.12 parts by mass of n-propyl acetate, 19.52 parts by mass of n-propanol, and 50.78 parts by mass of butanone, and The weight average molecular weight of the acrylate copolymer is 2.5W, the weight average molecular weight of cellulose acetate is 1.2W, the weight average molecular weight of cellulose acetate propionate is 1.5W, and the weight average molecular weight of cellulose acetate butyrate is 1.7W.

Embodiment 3

[0029] Like the partial transfer process described in Embodiments 1 and 2, this embodiment has the following differences: the transfer coating includes the following components: 20.9 parts by mass of acrylate copolymer, 10.12 parts by mass of cellulose acetate, 11.12 parts by mass of cellulose acetate propionate, 10.87 parts by mass of cellulose acetate butyrate, 21.7 parts by mass of ethyl acetate, 41.07 parts by mass of n-propyl acetate, 20.47 parts by mass of n-propanol, and 49.12 parts by mass of butanone , and the weight-average molecular weight of the acrylate copolymer is 1W, the weight-average molecular weight of cellulose acetate is 1W, the weight-average molecular weight of cellulose acetate propionate is 2W, and the weight-average molecular weight of cellulose acetate butyrate is 1W.

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Abstract

The invention relates to a local transfer process, which sequentially includes the following steps: coating of release layer, molding, vacuum aluminum plating, paper coating and transfer. On the paper processed in step 4, the transfer of the laser finger is realized by high-temperature baking in a five-section oven. Since the part that does not need to transfer the pattern in step 4 is set in a hollow structure, only the transfer pattern is transferred during the transfer. Part of the pattern of the glue, so there is no need to wash the aluminum locally after aluminum plating, which greatly improves the qualification rate of the product, and reduces the pollution source caused by chemical aluminum washing, realizes energy saving and emission reduction, reduces the production cost, and also improves the The accuracy of the subsequent printing overprint of the positioning product is improved.

Description

technical field [0001] The present invention relates to a local transfer process. Background technique [0002] During printing, some products need to be hollowed out for post-process overprinting, such as coding, which requires paper to leave hollow patterns or characters before printing. The traditional hollowing method is realized on the PET base film, and then transferred to the paper. Hollowing on the PET base film is also called partial aluminum washing, that is, the PET base film is partially washed with aluminum after coating, molding, aluminum plating, aluminum washing and slitting. Exactly, the waste rate is high. The total cost is high, and the aluminum washing process is more polluting, and it is easy to discharge harmful sewage, which pollutes the environment, and the aluminum washing process is easy to cause harm to operators. SUMMARY OF THE INVENTION [0003] The purpose to be achieved by the present invention is to provide a local transfer process, which ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41M5/382B41M5/41B41M5/42B41M5/44D21H19/34D21H19/20D21H19/68C08J7/04C08L67/02
CPCB41M5/382B41M5/423B41M5/44B41M5/41B41M5/426D21H19/34D21H19/20D21H19/68C08J7/04C08J2367/02Y02P20/10
Inventor 刘兵伍燕德柴鑫孔秀英沈亚雄程军明李志伟陈欢王晓磊胡金动
Owner ZHEJIANG YAXIN PACKAGE MATERIAL