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Polyamide film with colorful metal texture as well as preparation method and application thereof

A technology of polyamide film and metallic texture, which is applied in the fields of application, chemical instruments and methods, and flat products, etc., can solve the problems of difficult film recycling, insufficient adhesion, and complicated preparation materials, so as to achieve easy recycling and reuse, layer The effect of large adhesive force and excellent mechanical strength

Active Publication Date: 2022-02-22
厦门长塑实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The usual production method of colorful film is multi-layer co-extrusion, which uses two different materials alternately to form parallel multi-layer films. Because the properties of the two materials are often quite different, it is easy to have insufficient adhesion of each layer. The separation of each layer occurs during the process, which affects the use
In addition, in order to solve the insufficient adhesion, an additional glue layer is often introduced to enhance the adhesion, but this further increases the difficulty of processing, and makes the film composition more complex, making it difficult to recycle the film.
In addition, there are laser pressing method, vacuum coating method, coating film method and other production methods, which also have the problem of introducing complex components, making the film difficult to recycle.
[0004] Patent CN109624164A discloses an interference iridescent film solution formula and its interference film and preparation method. The disclosure date is April 16, 2019. The technical solution involves mixing at least seven materials to prepare an iridescent film. However, the solution There are problems such as the preparation of materials is too complicated and the preparation cost is high

Method used

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  • Polyamide film with colorful metal texture as well as preparation method and application thereof
  • Polyamide film with colorful metal texture as well as preparation method and application thereof
  • Polyamide film with colorful metal texture as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] In this embodiment, a polyamide film with a colorful metallic texture is formed by alternately stacking first polyamide layers and second polyamide layers, and the total number of layers in the polyamide film is 20. Wherein, the first polyamide layer is composed of 100% by mass percentage of PA6 resin (Germany BASF company, Ultramid B32); the second polyamide layer is composed of the following mass percentage of non- Crystalline polyamide composition: 25% polyamide 1 (manufactured by EMS, Switzerland, Grivory G21), 75% polyamide 2 (manufactured by Evonik, TROGAMID T5004). Wherein, the thickness of the first polyamide layer is 0.5 μm, and the thickness ratio of the first polyamide layer to the second polyamide layer is 1:1.

[0036] The preparation of the present embodiment polyamide film is carried out as follows:

[0037] 1) each component in the second polyamide layer is mixed according to the formula ratio, and dispersed evenly by a high-speed mixer;

[0038] 2) Th...

Embodiment 2

[0041] In this embodiment, a polyamide film with a colorful metallic texture is formed by alternately stacking first polyamide layers and second polyamide layers, and the total number of layers in the polyamide film is 30. Wherein, the first polyamide layer is composed of 100% by mass percentage of PA6 resin (Germany BASF company, Ultramid B32); the second polyamide layer is composed of the following mass percentage of non- Crystalline polyamide composition: 50% polyamide 1 (manufactured by EMS, Switzerland, Grivory G21), 50% polyamide 2 (manufactured by DuPont, USA, Selar PA 3426). Wherein, the thickness of the first polyamide layer is 1 μm, and the thickness ratio of the first polyamide layer to the second polyamide layer is 1:1.2.

[0042] The preparation method of Example 1 was used to prepare the corresponding film.

Embodiment 3

[0044]In this embodiment, a polyamide film with a colorful metallic texture is formed by alternately stacking first polyamide layers and second polyamide layers, and the total number of layers in the polyamide film is 30. Wherein, the first polyamide layer is composed of 100% by mass percentage of PA6 resin (DSM company in the Netherlands, Akulon F130); the second polyamide layer is composed of the following non- Crystalline polyamide composition: 30% polyamide 1 (manufactured by EMS, Switzerland, GrivoryG21), 30% polyamide 2 (manufactured by DuPont, Selar PA 3426), 40% polyamide 3 (manufactured by Xianglong New Materials Co., Ltd., PAGT26 ). Wherein, the thickness of the first polyamide layer is 0.8 μm, and the thickness ratio of the first polyamide layer to the second polyamide layer is 1:1.

[0045] The preparation method of Example 1 was used to prepare the corresponding film.

[0046] It should be noted that, in the above examples, non-crystalline polyamides with benzen...

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Abstract

The invention relates to the technical field of polymer films, in particular to a polyamide film with colorful metal texture as well as a preparation method and application thereof. The polyamide film is formed by alternately overlapping a first polyamide layer and a second polyamide layer B, and the total number of layers in the polyamide film is greater than or equal to 20, wherein the first polyamide layer is composed of polyamide resin with the crystallinity greater than or equal to 25%; and the second polyamide layer is composed of two or more than two kinds of amorphous polyamide resin. The polyamide film provided by the invention is prepared by using a two-way stretching process, has a unique colorful metal texture effect and excellent mechanical properties, and is easy to recycle due to the fact that only polyamide is used as the material and the material is single.

Description

technical field [0001] The invention relates to the technical field of polymer films, in particular to a polyamide film with colorful metallic texture, its preparation method and its application. Background technique [0002] Colorful film is a packaging film with excellent visual effects, which can be coated and printed to create a new colorful illusion effect, and processed into gold and silver silk or glitter powder. Colorful film composite coated paper or white cardboard can be used alone in gift box packaging, or can be applied to anti-counterfeiting packaging, cosmetics or gift packaging after further processing, and combined with non-woven fabrics to make beautiful environmentally friendly shopping bags or curtains After the cloth is compounded, it is made into curtains and hanging decorations with bright colors and illusion effects. The single-layer colorful film can also be used as flower packaging, fruit candy twist packaging and craft candy decoration packaging, ...

Claims

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Application Information

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IPC IPC(8): B32B27/34B32B27/06B32B7/023B29C48/00B29C48/08B29C48/15B29C48/18B29C48/285B65D65/40
CPCB32B27/34B32B27/08B32B7/023B29C48/08B29C48/18B29C48/287B29C48/001B29C48/0018B29C48/15B65D65/40B29L2007/00B32B2307/404Y02W30/80
Inventor 陈曦丁淦林黄培鑫廖贵何李智尧颜艺林
Owner 厦门长塑实业有限公司