Cushion packaging material and preparation method thereof

A packaging material and paste technology, applied in the field of packaging materials, can solve the problems of poor waterproof performance, inability to apply cushioning packaging materials and cold chain insulation cushioning packaging materials, high material costs, etc., to achieve good waterproof performance, good market application prospects, The effect of easy processing and production

Pending Publication Date: 2021-12-24
SHANGHAI ZIDAN PRINTING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, degradable packaging materials are mostly modified by degradable plastic components such as PLA, PBS, and PBTA. The degradation conditions are harsh and the cost of materials is high. At this stage, there are great obstacles in the application of industrial scale.
Other biomass materials such as star

Method used

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  • Cushion packaging material and preparation method thereof
  • Cushion packaging material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0056] Example 1

[0057] like figure 1 As shown, a cross-sectional view of the packaging material of Embodiment 1 of the present invention is shown.

[0058] The packaging material of the first embodiment of the present invention has a multilayer composite structure comprising a first paper base material 10 and a second paper substrate 20 disposed up and down, and provided in the first paper substrate 10 and the second paper substrate 20. The foam layer 30 is between.

[0059] Specifically, in the present embodiment, the first paper base material 10 and the opposite side surface of the second paper base material 20 are each coated with a layer of waterproof coating; specifically, the outer side of the first paper substrate 10 ( figure 1 The upper side shown) is coated with a layer of waterproof coating 11, and the outer side of the second paper base material 20. figure 1 The lower side surface) is applied to a layer of waterproof coating 21.

[0060] In a specific embodiment of t...

Example Embodiment

[0083] Example 2

[0084] like figure 2 As shown, a cross-sectional view of the packaging material of Embodiment 2 of the present invention.

[0085] The packaging material of the second embodiment of the present invention has a multilayer composite structure including the first paper substrate 1 and the second paper base material 2 provided up and down, and is disposed in the first paper substrate 1 and the second paper substrate 2. The foam layer 3 is between.

[0086] Specifically, in the present embodiment, the inner side surface and the outer side surface of the first sheet of paper substrate 1 are coated with a layer of waterproof coating 1a and 1b, and the inner side surface and the outer side surface of the second paper base material 2 are also coated with a layer of waterproof. Coatings 2a and 2b.

[0087] In the present embodiment, the foaming layer 3 is passed through a coating between the first paper substrate 1 (waterproof coating 1a) and the second paper substrate 2 ...

Example Embodiment

[0102] Example 3

[0103] The difference between the packaging material of Embodiment 3 and Example 1 is only that the foam layer 30 is coated with aqueous foamable coating by a partial point between the first paper substrate 10 and the second paper substrate 20. And foaming and dry solidification at temperatures at 80 to 130 ° C.

[0104] Preferably, in the present embodiment, the aqueous foamable coating is applied in a uniform location according to a certain row, and finally after foaming and drying, forming a foaming layer. The structure of the foam layer is similar to the "bubble film" structure on the market (the air bubble is uniformly arranged in a certain line, the column interval), and each of the formed bubbles is about 0.35 ~ 0.4cm. 3 .

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Abstract

The invention relates to a cushion packaging material and a preparation method thereof, and belongs to the technical field of packaging materials. According to the cushion packaging material, a scheme that two layers of paper base materials are coated with a specific water-based foamable coating material is adopted, and the water-based foamable coating material is foamed at a certain temperature and dried and cured to form a foaming layer. According to the invention, the cushion packaging material has good buffering performance and can be used as a transportation packaging material, especially an express buffering packaging material and a cold chain heat preservation buffering packaging material; and the cushion packaging material is made of degradable and environment-friendly materials, is easy to process and produce, and has a better market application prospect.

Description

technical field [0001] The invention relates to a cushioning packaging material, a preparation method thereof, and a transportation packaging container using the cushioning packaging material, belonging to the technical field of packaging materials. Background technique [0002] At present, most of the packaging materials of various products that we come into contact with in our daily life are made of non-degradable materials, such as polystyrene, polypropylene, polyvinyl chloride and other plastics. In addition, with the rapid development of e-commerce logistics, the use of cushioning packaging materials for express delivery and cold chain foam materials has also increased significantly. These massively used plastic products have brought huge environmental and social problems to human beings. After these materials are used and discarded, they are difficult to be degraded in the environment. Both chemical and physical methods are difficult to deal with. If they are burned, ...

Claims

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Application Information

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IPC IPC(8): D21H27/34D21H27/10D21H19/10D21H17/02D21H17/28D21H17/00D21H21/54B65D65/42B65D65/40B32B33/00B32B29/00B32B5/18
CPCD21H27/34D21H27/10D21H19/10D21H17/02D21H17/28D21H17/00D21H21/54B65D65/42B65D65/40B32B33/00B32B29/002B32B29/00B32B29/007B32B5/18Y02W90/10
Inventor 曹继刚
Owner SHANGHAI ZIDAN PRINTING
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