阅读说明：本技术 一种固体的防潮式包装工艺 (Moisture-proof packaging technology for solid ) 是由 高艳飞 秦谦燕 陈招燕 韦敏 赵张莹 邱妍 于 2019-08-02 设计创作，主要内容包括：本发明公开了一种固体的防潮式包装工艺,包括以下步骤：A、首先将固体采用压合方式压合成立体状结构；B、之后在立体状的固体外部包覆一层复合膜,并在复合膜外部贴合若干干燥剂袋；C、之后在干燥剂袋外部再包覆一层复合膜；D、之后将包覆两层复合膜的立体状固体装入真空包装内,并抽真空；E、之后将抽真空后的包装袋放入外袋中,并在外袋内填充干燥剂,最后将外袋采用热压封口工艺进行密封,本发明采用的包装工艺操作简单,采用两层复合膜,并在复合膜之间贴合干燥剂袋,能够起到防潮、密封性能,另外,装入真空袋中,能够进一步起到密封性能。(The invention discloses a solid moisture-proof packaging process, which comprises the following steps: A. firstly, pressing the solid into a three-dimensional structure in a pressing mode; B. then coating a layer of composite film outside the solid body, and attaching a plurality of desiccant bags outside the composite film; C. then coating a layer of composite film outside the desiccant bag; D. then the solid body coated with the two layers of composite films is put into a vacuum package and vacuumized; E. the packing process adopted by the invention is simple to operate, adopts two layers of composite films, and is attached to the desiccant bag between the composite films, so that the moisture-proof and sealing performances can be achieved, and in addition, the packing bag is filled into the vacuum bag, so that the sealing performance can be further achieved.)

1. A moisture-proof packaging process for solids is characterized in that: the method comprises the following steps:

A. firstly, pressing the solid into a three-dimensional structure in a pressing mode;

B. then coating a layer of composite film outside the solid body, and attaching a plurality of desiccant bags outside the composite film;

C. then coating a layer of composite film outside the desiccant bag;

D. then the solid body coated with the two layers of composite films is put into a vacuum package and vacuumized;

E. and then putting the vacuumized packaging bag into an outer bag, filling a drying agent into the outer bag, and finally sealing the outer bag by adopting a hot-pressing sealing process.

2. A process for moisture-proof packaging of solids as claimed in claim 1, wherein: the composite membrane structure in the step B and the composite membrane structure in the step C are completely consistent, the composite membrane structure comprises a sodium alginate nanofiber membrane, a bamboo fiber nanofiber membrane and a polypropylene membrane, and the polypropylene membrane is bonded between the sodium alginate nanofiber membrane and the bamboo fiber nanofiber membrane.

3. A process for moisture-proof packaging of solids as claimed in claim 1, wherein: the desiccant in the desiccant bag in the step B is completely consistent with the desiccant in the step E, and comprises, by weight, 10-20 parts of super absorbent resin, 10-20 parts of silicon dioxide, 5-15 parts of bamboo charcoal, 4-10 parts of bentonite, 5-10 parts of montmorillonite, 3-9 parts of activated alumina powder, 4-12 parts of attapulgite clay, 4-10 parts of sodium tripolyphosphate, 2-4 parts of titanium dioxide, 5-10 parts of diatomite and 3-9 parts of nano magnesium oxide.

4. A process for moisture-proof packaging of solids as claimed in claim 1, wherein: and E, manufacturing the outer bag by adopting high-density polyethylene, wherein the thickness of the outer bag is 1-2 mm.

Technical Field

The invention relates to the technical field of solid packaging, in particular to a moisture-proof packaging process for solids.

Background

The package is subject to moisture in the air during storage and distribution, so that the quality of the contents is reduced and the use value is even completely lost. The moisture-proof package adopts certain protection measures to isolate the invasion of water vapor in the air to the contents and avoid the moisture, deterioration, mildew, rot, corrosion and the like of the contents.

At present, the moisture-proof packaging of solid is generally carried out by directly filling a drying agent into a packaging bag for drying, the drying performance is poor, the duration is short, and the product quality cannot be effectively ensured, so that improvement is needed.

Disclosure of Invention

The invention aims to provide a moisture-proof packaging process for solids, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a moisture-proof packaging process for solids, comprising the steps of:

A. firstly, pressing the solid into a three-dimensional structure in a pressing mode;

B. then coating a layer of composite film outside the solid body, and attaching a plurality of desiccant bags outside the composite film;

C. then coating a layer of composite film outside the desiccant bag;

D. then the solid body coated with the two layers of composite films is put into a vacuum package and vacuumized;

E. and then putting the vacuumized packaging bag into an outer bag, filling a drying agent into the outer bag, and finally sealing the outer bag by adopting a hot-pressing sealing process.

Preferably, the composite membrane in the steps B and C has a completely consistent structure and comprises a sodium alginate nanofiber membrane, a bamboo fiber nanofiber membrane and a polypropylene membrane, wherein the polypropylene membrane is bonded between the sodium alginate nanofiber membrane and the bamboo fiber nanofiber membrane.

Preferably, the desiccant in the desiccant bag in the step B is completely consistent with the desiccant in the step E, and the components of the desiccant bag in the step B comprise, by weight, 10-20 parts of super absorbent resin, 10-20 parts of silicon dioxide, 5-15 parts of bamboo charcoal, 4-10 parts of bentonite, 5-10 parts of montmorillonite, 3-9 parts of activated alumina powder, 4-12 parts of attapulgite clay, 4-10 parts of sodium tripolyphosphate, 2-4 parts of titanium dioxide, 5-10 parts of diatomite and 3-9 parts of nano magnesium oxide.

Preferably, the outer bag in the step E is made of high-density polyethylene, and the thickness of the outer bag is 1mm-2 mm.

Compared with the prior art, the invention has the beneficial effects that:

(1) the packaging process adopted by the invention is simple to operate, the two layers of composite films are adopted, the desiccant bag is attached between the composite films, the moisture-proof and sealing performances can be achieved, in addition, the vacuum bag can be filled into the vacuum bag to further achieve the sealing performance, finally, the vacuum bag is filled into the outer bag and filled with the desiccant, the long-time moisture-proof and sealing performances can be achieved, and the internal solid is effectively prevented from being wetted and deteriorated.

(2) The composite membrane adopted by the invention has water-repellent and air-permeable performance, and also has excellent tensile strength and corrosion resistance, thereby effectively protecting internal solids.

(3) The drying agent adopted by the invention has wide raw material source and low manufacturing cost, does not generate harmful substances, can effectively play a role of moisture absorption, and has long moisture absorption duration.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.