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Composite reinforcing film and manufacturing method thereof

A manufacturing method and reinforcing film technology, which are applied in printed circuit manufacturing, chemical instruments and methods, laminating devices, etc., can solve the problems of low work efficiency, difficult and precise alignment, time-consuming and labor-intensive, etc., and achieve convenient, fast and effective operation. effect of execution

Active Publication Date: 2012-02-29
浙江侨龙电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] As products are becoming more and more miniaturized, the sheet-shaped reinforcing film obtained by punching in the above step ③ is very small, and some are not even as large as the nail cap. As a result, in the above step ④, the operation of peeling off the release film is time-consuming and laborious. , the work efficiency is relatively low, the alignment is also difficult to be precise, and the product yield is low

Method used

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  • Composite reinforcing film and manufacturing method thereof
  • Composite reinforcing film and manufacturing method thereof
  • Composite reinforcing film and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (Example 1, composite reinforcing membrane)

[0038] figure 1 It is a structural schematic diagram of the composite reinforced membrane of the present invention, showing the first specific embodiment of the composite reinforced membrane of the present invention,

[0039] This embodiment is a composite reinforcing film, comprising a bonding film layer 1, and the bonding film layer 1 includes a reinforcing layer 11 and an adhesive layer 12; both sides of the bonding film layer 1 are adhered There is a whole micro-mucosa 2; the bonding film layer 1 is composed of a plurality of sheet-like bonding films 10 arranged side by side, and the adjacent bonding films 10 are disconnected from each other.

[0040] The bonding force between the micro-mucosa 2 used and the reinforcing layer 11 in the bonding film layer 1 is smaller than that between the adhesive layer 12 in the bonding film layer 1 and the film layer at the preset reinforcing position of the flexible printed circuit b...

Embodiment 2

[0043] (Example 2, composite reinforcing membrane)

[0044] This embodiment is basically the same as Embodiment 1, except that the adhesive layer 12 is a polyethylene heat-sealing layer.

Embodiment 3

[0045] (Example 3, Manufacturing Method of Composite Reinforcing Membrane)

[0046] Figure 2 to Figure 7 A specific embodiment of the manufacturing method of the composite reinforced membrane of the present invention is shown, wherein, figure 2 It is a schematic diagram of the step of punching and cutting into horizontal strips in the manufacturing method of the composite reinforced membrane of the present invention; image 3 It is a schematic diagram of the tear-off film step in the manufacturing method of the composite reinforced film of the present invention; Figure 4 It is a schematic diagram of the step of pasting micro-mucosa on the front and back sides in the manufacturing method of the composite reinforced membrane of the present invention; Figure 5 It is a schematic diagram of the step of punching into longitudinal strips in the manufacturing method of the composite reinforced membrane of the present invention; Figure 6 to carry out Figure 5 A schematic diag...

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Abstract

The invention discloses a composite reinforcing film and a manufacturing method thereof. The composite reinforcing film comprises a lamination film layer, wherein the lamination film layer comprises a reinforcing layer and a bonding layer; complete slightly-sticking films are adhered to the positive and negative sides of the lamination film layer; the lamination film layer is formed by combining a plurality of sheet lamination films arranged side by side and adjacent lamination films are disconnected to each other. The manufacturing method comprises the steps of: (1) preparing materials; (2) punching into cross strips; (3) peeling off shaping films; (4) adhering slightly-sticking films to the positive and negative sides; and (5) punching into longitudinal strips. The product is more quickand convenient in lamination reinforcing operation. The method has convenient operation and can be implemented quickly and effectively.

Description

technical field [0001] The invention belongs to the technical field of processing and manufacturing of flexible printed circuit boards, and in particular relates to a composite reinforcing film for bonding and reinforcing and a manufacturing method thereof. Background technique [0002] Flexible printed circuit boards (also known as FPCs) are characterized by lightness, thinness and shortness, so they are prone to bending and scars during use; they have low mechanical strength and are easy to crack. Therefore, it is generally necessary to fit and reinforce it. The purpose of fit reinforcement is to strengthen the mechanical strength of FPC and facilitate surface mounting parts. There are many types of reinforcing films, depending on the requirements of the product, mainly polyethylene phthalate (also known as PET), polyimide (also known as PI), adhesive (adhesive is a A kind of advertising material, generally made of a layer of PP paper and a layer of film and an adhesive ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K1/02H05K3/00B32B3/18B32B7/12B32B37/12B32B38/04
Inventor 金花严日润王峰
Owner 浙江侨龙电子科技有限公司