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A preparation process for packaging and packaging prepared by the process

A technology of preparation process and raw materials, applied in the field of preparation process and packaging prepared by this process, can solve problems such as broken, worn items, unpackable, etc., and achieve the effects of improving weather resistance, realizing repeated use, and controlling foaming ratio

Active Publication Date: 2022-05-13
中创文保科技发展(北京)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, the existing packaging cannot pack the items according to the shape of the items to be packaged, and the items are prone to wear and tear, etc.

Method used

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  • A preparation process for packaging and packaging prepared by the process
  • A preparation process for packaging and packaging prepared by the process
  • A preparation process for packaging and packaging prepared by the process

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Embodiment Construction

[0036] Hereinafter, when explaining the embodiments of the present invention, detailed descriptions of related known elements or functions will be omitted if they interfere with the gist of the present invention.

[0037] refer to figure 1 , the invention provides a preparation process for packaging, comprising the steps of:

[0038] S1. Preparation of expanded polypropylene (EPP) raw materials:

[0039] Using polypropylene (PP) powder as raw material, PP, nano-SiO 2 , lubricant, and nucleating agent are mixed in a high-speed mixer at a mass ratio of 1000:1:1:0.5, then added to a high-pressure reactor and heated to soften, and high-pressure carbon dioxide gas is introduced as a foaming agent and kept foaming. The bubble pressure is in the range of 1.5-3.0MPa, and the foaming temperature is kept in the range of 135-150°C. After the high-pressure carbon dioxide gas diffuses into the PP, nano-SiO 2 After the mixed resin particles composed of lubricant, nucleating agent form a ...

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Abstract

The invention provides a packaging preparation process and the packaging prepared by the process, including steps: S1, EPP raw material preparation; S2, mold pretreatment; S3, box injection molding; S4, box surface treatment; S5, liner Structural 3D scanning; S6, liner layered die-cutting; S7, box assembly. The preparation process of the packaging provided by the present invention is prepared by using EPP raw materials, and a modified layer is hot-melt coated on the packaging surface to improve the weather resistance, wear resistance and oil resistance of the box, and is made of EPP raw materials with different apparent densities. The layered shockproof structure acts as an inner tank to maximize cushioning protection for items.

Description

technical field [0001] The invention relates to the technical field of packaging, more specifically, to a packaging preparation process and the packaging prepared by the process. Background technique [0002] Usually, most of the current article packaging uses foam, foam, etc. as box cushioning materials, and corrugated paper, wooden boxes, etc. as outer packaging, which have poor moisture-proof, insect-proof, and cushioning properties and are difficult to reuse. Compared with the packaging of traditional cardboard structure, expanded polypropylene (EPP) has the advantages of high strength, no deformation, moisture resistance, good durability and beautiful appearance. Moreover, the existing packaging cannot pack the items according to the shape of the items to be packaged, and the items are prone to wear and tear, etc. Contents of the invention [0003] In this regard, the present invention is proposed to solve the above problems, and its purpose is to provide a preparati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/78B29C44/60B29C45/17B29C65/02B29C64/386B33Y50/00B65D6/02
CPCB29C45/78B29C44/60B29C45/1769B29C65/02B29C64/386B33Y50/00B65D11/10B29C2945/76531
Inventor 敖雯楠张波俞朝晖
Owner 中创文保科技发展(北京)有限公司
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