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Plastic container having excellent scratch resistance and antifouling properties

A technology for plastic containers, metallic pigments, applied in the direction of chemical instruments and methods, coverings/exterior coatings, synthetic resin layered products, etc., which can solve the problems of reduced transparency, no improvement in scratch resistance and anti-fouling properties, etc., Achieves scratch or abrasion inhibition, excellent scratch and stain resistance, and adhesion avoidance

Inactive Publication Date: 2017-05-17
TOYO SEIKAN KAISHA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The coating is provided to avoid the loss of clarity caused by the recycling of PEN bottles, not to improve scratch and stain resistance, nor does it actually improve scratch and stain resistance

Method used

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  • Plastic container having excellent scratch resistance and antifouling properties
  • Plastic container having excellent scratch resistance and antifouling properties
  • Plastic container having excellent scratch resistance and antifouling properties

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0108]

[0109] The following resins are respectively filled in four extruders, and each resin is plasticized and kneaded under heating and extruded, thereby forming a multilayer parison composed of four layers by using a multilayer head, the four layers From the outside, there are a transparent polyester-based resin outer layer, a transparent adhesive resin layer, a colored polyolefin-based resin layer containing a gloss pigment, and a colored polyolefin-based resin layer not containing a gloss pigment. Next, the parison is clamped between molds having a cavity, and compressed air is blown into the parison, thereby producing four cylindrical cylinders with a capacity of 500 ml, a height of 200 mm, and a barrel diameter of 70 mm. A multilayer plastic bottle composed of layers. The details of the resin are as follows.

[0110] Transparent polyester resin outer layer:

[0111] Transparent Amorphous Cyclohexanedimethanol (CHDM) Copolymerized Polyethylene Terephthalate Resin ...

Embodiment 2

[0124] In addition to mixing 96 parts by mass of water, 0.08 parts by mass of dimethyl silicone, and 3.92 parts by mass of a nonionic surfactant under agitation to prepare an emulsion-based coating liquid (protective liquid) for a protective film, with Plastic bottles were produced and evaluated in the same manner as in Example 1.

[0125] The content of the nonionic surfactant was 5,000 parts by mass based on 100 parts by mass of dimethyl silicone in the dry solid content of the protective film. Table 1 shows the specifications and evaluation results of the protective film.

Embodiment 3

[0127] In addition to mixing 96 parts by mass of water, 2.7 parts by mass of dimethyl silicone, and 1.3 parts by mass of a nonionic surfactant under stirring to prepare an emulsion-based coating liquid (protective liquid) for a protective film, with Plastic bottles were produced and evaluated in the same manner as in Example 1.

[0128] The content of the nonionic surfactant was 50 parts by mass based on 100 parts by mass of dimethyl silicone in the dry solid content of the protective film. Table 1 shows the specifications and evaluation results of the protective film.

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Abstract

This plastic container is characterized in that: at least an outer surface layer is formed of a transparent resin layer that is formed from a transparent resin or a colored resin layer that is obtained by blending a coloring agent in the transparent resin; and a protective film that contains 100 parts by mass of a silicone oil and 50-5,000 parts by mass of a surfactant is formed on the outer surface layer. This plastic container exhibits excellent scratch resistance and antifouling properties without being covered with a label such as a shrink film.

Description

technical field [0001] The present invention relates to a plastic container excellent in scratch resistance and stain resistance. Background technique [0002] Since the main body wall of the direct blow bottle generally has high flexibility so that the content can be easily discharged by extrusion, the direct blow bottle is widely used as a bottle for containing products such as food, cosmetics and hair care products (for example, Plastic containers for various contents such as shampoo and hair dye). [0003] In general, plastic containers including the above direct blow molding bottles are filled with contents and sold by printing or decorating with adhesive labels immediately after blow molding. However, they have problems such as their outer surfaces being scratched or dirt such as dust adhering to their outer surfaces during the period from forming and decorating to filling and selling. That is, plastic containers are generally sold in an empty state after being shape...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D23/08B32B27/00B65D25/34
CPCB32B27/00B65D23/08B65D25/34
Inventor 加藤雄一郎安斋雄介小泽里美
Owner TOYO SEIKAN KAISHA LTD
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