Humidity sensitivity discoloring character-displaying plastic bag and manufacturing method thereof

A moisture-sensitive discoloration and production method technology, which is applied in the field of moisture-sensitive discoloration display plastic bags and their production, can solve the problems of easy loss when carrying, damp and moldy fabrics, etc.

Active Publication Date: 2017-04-26
广东康派环创科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after such packaging bags are filled with fabrics made of natural materials such as cotton, animal hair, and silk, when the humidity of the storage environment is high, water vapor will enter the inside of the packaging bag, causing the fabric to become damp and moldy.
Existing humidity detection cards or humidity detection instruments usually need to be compared to determine the ambient humidity, or there are problems such as easy loss when carrying

Method used

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  • Humidity sensitivity discoloring character-displaying plastic bag and manufacturing method thereof
  • Humidity sensitivity discoloring character-displaying plastic bag and manufacturing method thereof
  • Humidity sensitivity discoloring character-displaying plastic bag and manufacturing method thereof

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0042] This embodiment provides a moisture-sensitive white-colorless plastic bag with characters.

[0043] The utility model relates to a moisture-sensitive white plastic bag with colorless characters, on which warning signs and ink color-changing tapes are printed. Ink discoloration band covers warning signs. The ink color-changing belt and warning marks have 3 groups, and the 3 groups are arranged in a straight line as a whole, and the content of moisture-sensitive color-changing ink in the ink color-changing belt gradually increases from one end to the other, corresponding to the environmental humidity indicated by the warning marks.

[0044] The production steps are as follows:

[0045] Take an appropriate amount of polypropylene plastic film roll material, unwind the film to pass through a corona treatment machine, and perform corona treatment on the surface of the film. The process parameters of corona treatment are: the current intensity is set to 1A, so that the surfa...

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PUM

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Abstract

The invention relates to a humidity sensitivity discoloring character-displaying plastic bag comprising a bag main body and humidity warning areas. The bag main body is made of a plastic film. Each humidity warning area is provided with a warning marker and a printing ink discoloring belt. The warning markers are covered with the printing ink discoloring belts. When the humidity sensitivity discoloring character-displaying plastic bag is used for storing products such as fabrics, under a high-humidity environment, the printing ink discoloring belts become colorless from a first color, and the warning markers can be shown clearly and directly without any disturbance. When a humidity ring is lower than discoloring humidity of the printing ink discoloring belts, the warning markers are hidden, and personnel can be prompted of the environment humidity of the plastic bag main body and the coping method directly, intuitively and effectively.

Description

technical field [0001] The invention relates to the technical field of packaging, in particular to a moisture-sensitive color-changing plastic bag and a manufacturing method thereof. Background technique [0002] Plastic flexible packaging is a widely used product in the field of packaging. This kind of packaging has the advantages of lightness, good sealing, and low cost. For example, when plastic flexible packaging is used in the field of garments, generally 2 to 6 openings with a diameter of 5 to 10 mm are left on the packaging bag to allow the packaging process to proceed smoothly. However, after such packaging bags are filled with fabrics made of natural materials such as cotton, animal hair, and silk, when the humidity of the storage environment is high, water vapor will enter the inside of the packaging bag, causing the fabric to become damp and moldy. Existing humidity detection cards or humidity detection instruments usually need to be compared to determine the amb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D33/00
CPCB65D33/004
Inventor 林建云曾武叶永茂王国忠薛矛
Owner 广东康派环创科技有限公司
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