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High-barrier plastic container, preparation method and spraying equipment

A technology for plastic containers and spraying equipment, which is applied in coatings, spray booths, spraying devices, etc., and can solve the problems of poor barrier properties of plastic containers

Active Publication Date: 2021-09-10
四川新升包装科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of poor barrier properties of plastic containers in the prior art, the present invention provides a plastic container with high barrier properties. By adding a first barrier inner film layer and a second barrier inner film layer in the container body, the overall The barrier property is conducive to maintaining the quality of the contents

Method used

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  • High-barrier plastic container, preparation method and spraying equipment
  • High-barrier plastic container, preparation method and spraying equipment
  • High-barrier plastic container, preparation method and spraying equipment

Examples

Experimental program
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Effect test

Embodiment 1

[0073] In order to solve the poor barrier properties of existing plastic containers, the oxygen in the air will penetrate the wall of the bottle to oxidize and deteriorate the substance, or the substance loses water, loses its original fragrance and flavor, or is mixed with peculiar smell, etc., in this embodiment Provide a high-barrier plastic container, the structure of which is as attached figure 1 with 2 shown. The container includes a container body 1 and a first barrier inner film layer 2 and a second barrier inner film layer 3 attached to the entire inner wall of the container body 1, and the second barrier inner film layer 3 is attached to the first barrier inner film layer 2 toward the container body 1 on the inside side. Wherein, the container body 1 is formed by injection molding or blow molding of PP, PE, PET, PC and other resin materials. The first barrier inner film layer 2 is atomized and sprayed on the inner wall of the container body 1 by chitosan solution,...

Embodiment 2

[0075] In order to obtain the high-barrier plastic container in Example 1, a method for preparing a high-barrier plastic container is provided in this embodiment, including the following steps;

[0076] Step 1, the container body 1 is formed. The container body 1 can be formed by injection molding or blow molding of PP, PE, PET, PC and other resin materials. After the container body 1 is formed, it is necessary to clean the inner wall of the container body 1 including the side wall and the bottom wall to remove dust, debris, oil and other attachments.

[0077] Step 2, configure chitosan solution. Among them, by weight percentage, water-soluble chitosan 35-40%, sodium sulfite 0.5-1%, ultra-fine calcium carbonate (particle size <20nm) 2-5%, wetting and dispersing agent 0.1-0.5%, and the balance is pure water. When using mechanical stirring and / or ultrasonic dispersing equipment to assist configuration, first mix ultrafine calcium carbonate, wetting and dispersing agent and ha...

Embodiment 3

[0084] In order to adopt the method in embodiment 2 to obtain the high barrier plastic container in embodiment 1, a kind of spraying equipment is provided in this embodiment, as attached Figure 3~6 shown. The spraying equipment includes a conveyor belt 4 , a manipulator 5 and a spraying mechanism 6 . Wherein, the spraying mechanism 6 is arranged in the conveying direction of the conveyor belt 4 . The manipulator 5 is arranged outside one side of the conveying direction of the conveyor belt 4, adjacent to the spraying mechanism 6. The container bodies 1 to be processed are sequentially placed on the conveyor belt 4 and transported to the vicinity of the spraying mechanism 6 by the conveyor belt 4 . The manipulator 5 grabs the container body 1 and transfers it to the spraying mechanism 6 for atomized spraying of chitosan solution and chitosan / cellulose solution to form the first barrier inner film layer 2 and the second barrier inner film layer 3 , forming a high barrier pla...

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Abstract

In order to solve the problem that in the prior art, a plastic container is poor in barrier property, the invention discloses a high-barrier plastic container. The high-barrier plastic container comprises a container body, a first barrier inner film layer and a second barrier inner film layer, and the first barrier inner film layer and the second barrier inner film layer are attached to the whole inner wall of the container body. The invention further discloses a preparation method of the high-barrier plastic container. The preparation method comprises the steps of preparing the container body, forming, preparing a chitosan solution, atomizing and spraying, drying, preparing a chitosan / cellulose mixed solution, atomizing and spraying, performing secondary drying and the like. The invention further discloses spraying equipment and the spraying equipment comprises a conveying belt, a mechanical arm and a spraying mechanism. According to the high-barrier plastic container, the first barrier inner film layer and the second barrier inner film layer are additionally arranged in the container body, so that the overall barrier property is improved. The invention further provides the preparation method of the high-barrier plastic container, the preparation method is simple in process, and toxic and harmful organic solvents are avoided. The invention further provides the spraying equipment which is high in intelligent degree.

Description

technical field [0001] The invention relates to plastic containers, in particular to a high-barrier plastic container, a preparation method and spraying equipment. Background technique [0002] With the development of the market and the continuous improvement of people's lives, people's requirements for commodity packaging are also changing. For example, the packaging of fruits, frozen foods, aquatic products, high-temperature cooking foods, precious medicinal materials, flavors and fragrances, etc. not only requires packaging materials to have good waterproof performance, but also good barrier performance. In order to meet the above packaging requirements, the commonly used packaging materials are glass containers or metal containers. [0003] Glass containers are easily damaged and heavy, and metal containers are expensive. Therefore, the use of glass containers or metal containers as packaging materials is relatively limited. Compared with glass containers and metal co...

Claims

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Application Information

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IPC IPC(8): B65D25/14C09D105/08C09D7/61B05B13/06B05B16/20B05D1/36B05D3/02B05D7/00B05D7/02B05D7/22
CPCC09D105/08C09D7/61C09D7/70B65D25/14B05D7/02B05D7/227B05D7/54B05D3/02B05D1/36B05B16/20B05B13/0645C08K2003/265C08K2201/011B05D2518/00C08K3/26C08K3/30C08L1/02C08K7/26B05D2420/01B05D2420/02Y02W90/10
Inventor 唐世见罗涛
Owner 四川新升包装科技有限责任公司