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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 starch, protein, and wood cellulose have superior degradation performance, but the products made of them have poor waterproof performance and a relatively narrow application range, especially not applicable to cushioning packaging materials for express delivery and cold storage. Chain insulation buffer packaging material

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

Embodiment 1

[0057] Such as figure 1 Shown is a schematic cross-sectional view of the packaging material in Example 1 of the present invention.

[0058] The packaging material in Example 1 of the present invention has a multi-layer composite structure, which includes a first paper base material 10 and a second paper base material 20 arranged up and down oppositely, and The foam layer 30 in between.

[0059] Specifically in this embodiment, the opposite outer surfaces of the first paper substrate 10 and the second paper substrate 20 are each coated with a waterproof coating; specifically, the outer surfaces 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 substrate 20 ( figure 1 The lower side shown) is coated with a waterproof coating 21.

[0060] In a specific embodiment of the present application, both the first paper base material 10 and the second paper base material 20 are made o...

Embodiment 2

[0084] Such as figure 2 Shown is a schematic cross-sectional view of the packaging material of Example 2 of the present invention.

[0085] The packaging material of Example 2 of the present invention has a multilayer composite structure, which includes a first paper base material 1 and a second paper base material 2 arranged up and down oppositely, and Foam layer 3 in between.

[0086] Specifically in this embodiment, the inner and outer surfaces of the first paper substrate 1 are coated with a layer of waterproof coating 1A and 1B, and the inner and outer surfaces of the second paper substrate 2 are also coated with a layer of waterproof coating. Coat 2A and 2B.

[0087] In this embodiment, the foam layer 3 is formed by coating between the first paper substrate 1 (waterproof coating 1A) and the second paper substrate 2 (waterproof coating 2A) (specifically, full-screen coating is used). way) a layer of water-based foamable coating, which is obtained by foaming at a tempe...

Embodiment 3

[0103] The only difference between the packaging material of Example 3 and Example 1 is that the foam layer 30 is coated with a water-based foamable coating in a local spot-coating manner between the first paper substrate 10 and the second paper substrate 20. , and obtained by foaming at a temperature of 80-130°C, drying and curing.

[0104] Preferably, in this embodiment, the water-based foamable paint is uniformly applied at intervals of certain rows and columns, and finally foamed, dried and cured to form a foamed layer. The structure of the foam layer is similar to the "bubble film" structure on the market (bubbles are evenly arranged in a certain row and column interval), and the volume of each foam formed 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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