Preparation method of non-bright multilayer film
A manufacturing method and multi-layer film technology, which can be applied to other household appliances, etc., can solve problems such as easy fingerprints on bright surfaces, affecting hand touch, dryness, etc., to improve production yield and production efficiency, soft touch feel, sticking Co-processing stable effect
Inactive Publication Date: 2013-12-04
FORMOSAN RUBBER GRP
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Problems solved by technology
However, thermoplastic polyurethane products can only present a glossy surface, and this surface will be dry and astringent, which will affect the hand feel; moreover, in addition to environmental protection issues, the aesthetics of the product appearance also brings unlimited business opportunities, because this glossy surface is often Disadvantages such as easy to leave fingerprints, smudges or scratches after touching are also problems that need to be further solved
Method used
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[0017] The present invention responds to environmental protection issues, so it uses mature and non-toxic thermoplastic polyurethane environmental protection materials to make products. Different grades are used to make various types of thermoplastic polyurethane products. In order to improve the criticism of existing products, this invention provides a multi-layer film with matte and scratch-resistant functions, mainly for electronic products (3C) or any home appliances. For applications that require scratch-resistant, matte surfaces, the following will introduce in detail how the present invention uses a new processing procedure to complete matte multilayer film products.
[0018] Please also refer to figure 1 and Figure 2A to Figure 2C , figure 1 It is a flow chart of the steps of the present invention, Figure 2A to Figure 2C Structural cross-sectional views of each step of making the matte multilayer film structure for the present invention. Such as figure 1 As show...
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Abstract
The invention provides a preparation method of a non-bright multilayer film. The preparation comprises following steps: thermoplastic polyurethane plastic and an UV-resistant heat-resistant anti-ageing agent are subjected to mixing so as to obtain a plastic; the plastic is calendered to form a thermoplastic polyurethane (TPU) thin film with a preset thickness by heat calendaring, and at the same time a polycarbonate (PC) thin film is preheated under a high temperature, so as to keep the stable flatness of the polycarbonate thin film; the thermoplastic polyurethane (TPU) thin film is glued on to one surface of the polycarbonate thin film by calendaring so as to obtain a semi-finished product; and at last, the thermoplastic polyurethane thin film is coated with a layer of a non-bright surface agent, and is heated so as to obtain bridging effect, and a non-bright surface of the semi-finished product. Then the non-bright multilayer film finished product that contains the polycarbonate thin film, the thermoplastic polyurethane thin film and possesses a non-bright surface is obtained.
Description
technical field [0001] The invention relates to a method for manufacturing a matte multilayer film, in particular to a method for manufacturing a matte multilayer film with scratch resistance and matte characteristics. Background technique [0002] Polyvinylchloride (PVC) is the only chlorine-containing plastic among the five general-purpose plastics (PE, PVC, PP, PS, ABS). Changing the softness can reduce the production technology threshold and cost of the product through this feature, allowing producers to easily manufacture various products with different softness, so it is widely present in our daily life. However, in addition to its own disadvantages such as poor low-temperature bending resistance and poor impact resistance, PVC products will produce toxic dioxins (Polychlo rinated Dibenzo-p-dioxins, PCDD), chlorine gas and heavy metals in high-temperature environments or in the process of waste incineration Particles, called "toxic plastics" by Greenpeace Internationa...
Claims
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IPC IPC(8): B29C43/24B29C43/30B29C43/58B29B7/28B29L9/00
Inventor 朱鸿恩徐正己
Owner FORMOSAN RUBBER GRP