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Method and apparatus for manufacturing elastic sheet, method and apparatus for manufacturing stretchable composite sheet, and stretchable composite sheet

A manufacturing method and technology of elastic sheets, applied in the directions of transportation and packaging, chemical instruments and methods, and bundling of newly extruded filaments, which can solve problems such as difficulty in providing air permeability

Active Publication Date: 2020-10-30
ZUIKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, with Figure 9 The elastic composite sheet 101 manufactured by the method includes the membranous material 103', so it is difficult to provide air permeability

Method used

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  • Method and apparatus for manufacturing elastic sheet, method and apparatus for manufacturing stretchable composite sheet, and stretchable composite sheet
  • Method and apparatus for manufacturing elastic sheet, method and apparatus for manufacturing stretchable composite sheet, and stretchable composite sheet
  • Method and apparatus for manufacturing elastic sheet, method and apparatus for manufacturing stretchable composite sheet, and stretchable composite sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] Embodiment 1: with reference to Figure 1 ~ Figure 4 The manufacturing method of the elastic sheet and the manufacturing method of the elastic composite sheet will be described.

[0080] figure 1 It is a schematic diagram of the overall structure of the stretchable composite sheet manufacturing apparatus 10 . Such as figure 1 As shown, the stretchable composite sheet manufacturing device 10 of the present invention includes: a coating mechanism 20, a discharge mechanism 22, a cooling roll 30 as a cooling member, a stretching mechanism 38, a lamination mechanism 48, and a control device (not shown) . The control device controls the discharge mechanism 22, the cooling roll 30, the stretching mechanism 38, and the lamination mechanism 48 to operate in concert. The stretchable composite sheet manufacturing apparatus 10 can manufacture the elastic sheet 3 and the stretchable composite sheet 8 .

[0081] The discharge mechanism 22 has at least one discharge port 24 , a...

Embodiment 2

[0116] Embodiment 2: refer to Figure 5 with Image 6 . Embodiment 2 is basically the same as Embodiment 1. Below, the same symbols are used for the same parts as in Embodiment 1, and the differences compared with Embodiment 1 are mainly described.

[0117] Figure 5 It is a schematic diagram of the overall structure of the stretchable composite sheet manufacturing apparatus 10a of Example 2. Such as Figure 5 As shown, the stretchable composite sheet manufacturing apparatus 10a has: a coating mechanism 20a ( ) provided with first and second discharge mechanisms 22a and 22b; and a cooling member arranged below the first and second discharge mechanisms 22a and 22b Chill roll 30 , stretching mechanism 38 , and lamination mechanism 48 . Among them, the cooling roll 30, the stretching mechanism 38, and the laminating mechanism 48 have the same configurations as in Embodiment 1.

[0118] The first discharge mechanism 22a is the same as the discharge mechanism 22 of Embodimen...

Embodiment 3

[0133] Embodiment 3: refer to Figure 7 with Figure 8 . Embodiment 3 is substantially the same as Embodiments 1 and 2. The same symbols are used for the parts that are the same as those in Embodiments 1 and 2, and the differences from Embodiments 1 and 2 are mainly described.

[0134] Figure 7 It is a schematic diagram of the overall structure of the stretchable composite sheet manufacturing apparatus 10b of Example 3. Figure 8 It is a structural schematic diagram of main parts of the stretchable composite sheet manufacturing apparatus 10b. Such as Figure 7 with Figure 8 As shown, the stretchable composite sheet manufacturing apparatus 10b has: a coating mechanism 20b ( ) provided with a first discharge mechanism 22s and a second discharge mechanism 22u, 22v; Cooling roller 30s), and the additional cooling member second cooling roller 30t) arranged below the second discharge mechanism 22u, 22v), and stretching mechanism 38b, laminating mechanism 48. The second coo...

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Abstract

Provided are: a method and apparatus for manufacturing a highly permeable elastic sheet; a method and apparatus for manufacturing a highly gas-permeable stretchable composite sheet; and a highly gas-permeable stretchable composite sheet. An elastic resin material containing a thermoplastic elastic resin as a main component is melted by being heated to a temperature higher than a temperature rangein which the elastic resin material is elastically deformed, the molten elastic resin material is discharged in a fibrous or linear form, the discharged elastic resin material (intermediate (2)) is applied in a net shape onto a cooling member (30), the applied elastic resin material is cooled by the cooling member (30) to the temperature region in which the elastic resin material is elastically deformed, and the applied elastic resin material is solidified to obtain an elastic sheet (3). The elastic sheet (3) and non-woven fabrics (4, 6) are stacked and joined to obtain a stretchable compositesheet (8).

Description

technical field [0001] The present invention relates to an elastic sheet manufacturing method and manufacturing device, a stretchable composite sheet manufacturing method and manufacturing device, and a stretchable composite sheet. More specifically, it relates to an elastic sheet manufacturing method and manufacturing apparatus, a stretchable composite sheet manufacturing method and manufacturing apparatus, and a stretchable composite sheet suitable for disposable wearing articles and the like. Background technique [0002] The stretchable composite sheet having excellent elasticity can be used as a back sheet of a disposable diaper. Figure 9 It is a schematic diagram of the manufacturing method of the stretchable composite sheet. Such as Figure 9 As shown, the thermoplastic elastic resin is extruded from a T-die 111 to form a molten film 103'. Then, the film 103 ′ is cooled with a cooling roll 120 . Then, the cooled film 103' is sandwiched between two continuous sheets...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C48/345A61F13/15A61F13/51B29C48/88B29C48/92B32B5/24
CPCB29C48/345A61F13/15601A61F13/15804A61F13/4902B32B38/06B32B2555/02B29C48/05B29L2028/00B29L2031/4878B29D99/0078B29C48/301B29C48/914B29C48/0014B29D28/00B29L2031/731D01D7/00D01D5/088B29C48/92B29C2948/926B29C2948/92904B32B2274/00B32B7/05B32B2250/40B32B5/26B32B5/022B32B5/028B32B2307/51B32B2250/03B29C48/002B29C48/0021A61F13/15739B32B5/24B32B25/10
Inventor 腰岛美和中村秀幸
Owner ZUIKO CORP