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Molding device and method for manufacturing porous thin film through same

A technology of porous film and forming device, applied in the application, flat products, household appliances, etc., can solve the problems of high energy consumption, material waste, material pollution, etc., to improve production efficiency, reduce cost, and improve shape retention Effect

Active Publication Date: 2018-02-23
XIAMEN YANJAN NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the secondary processing of this production method, it is necessary to form the small-hole film A2' and then rewind it, transport it to the mechanical punching and forming equipment, and then unwind it, so the energy consumption is large, and it is easy to cause material damage during transportation. Pollution, more waste of materials

Method used

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  • Molding device and method for manufacturing porous thin film through same
  • Molding device and method for manufacturing porous thin film through same
  • Molding device and method for manufacturing porous thin film through same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Cooperate Figure 3 to Figure 5 As shown, a forming device includes a forming cage 1, a vacuum forming drum 2, a concave roll 3 and a needle roll 4.

[0028] The forming cage 1 is a seamless cylindrical metal mesh cage with a recessed area 11 and a non-recessed area 12 on the surface, and both the recessed area 11 and the non-recessed area 12 on the forming cage 1 have through holes 13, Specifically, the surface of the forming cage 1 has 20 to 1600 through holes 13 per square centimeter, and the area of ​​a single through hole 13 is 0.03mm 2 ~2.5mm 2， , the depression depth of the depression area 11 of the forming cage 1 is 0.1mm-0.8mm. In this embodiment, preferably, the surface of the forming cage 1 has 250 through holes 13 per square centimeter, and the area of ​​a single through hole 13 is 0.15mm 2 , the recessed depth of the recessed region 11 is 0.4 mm. The forming cage 1 is set on the vacuum forming drum 2, and the vacuum forming drum 2 is connected with a va...

Embodiment 2

[0034] Cooperate Image 6 As shown, a forming device includes a forming cage 1, a vacuum forming drum 2, a concave roll 3 and a needle roll 4.

[0035] The forming cage 1 is a seamless cylindrical metal mesh cage with a recessed area 11 and a non-recessed area 12 on the surface, and both the recessed area 11 and the non-recessed area 12 on the forming cage 1 have through holes 13, Specifically, the surface of the forming cage 1 has 20 to 1600 through holes 13 per square centimeter, and the area of ​​a single through hole 13 is 0.03mm 2 ~2.5mm 2， , the depression depth of the depression area 11 of the forming cage 1 is 0.1mm-0.8mm. In this embodiment, preferably, the surface of the forming cage 1 has 468 through holes 13 per square centimeter, and the area of ​​a single through hole 13 is 0.1 mm. 2 , the recessed depth of the recessed area 11 is 0.5 mm. The forming cage 1 is set on the vacuum forming drum 2, and the vacuum forming drum 2 is connected with a vacuum pump. Al...

Embodiment 3

[0041] Cooperate Figure 7 to Figure 9 As shown, a forming device includes a forming cage 1, a vacuum forming drum 2, a concave roll 3 and a needle roll 4.

[0042] The forming cage 1 is a seamless cylindrical metal mesh cage with a recessed area 11 and a non-recessed area 12 on the surface, and both the recessed area 11 and the non-recessed area 12 on the forming cage 1 have through holes 13, Specifically, the surface of the forming cage 1 has 20 to 1600 through holes 13 per square centimeter, and the area of ​​a single through hole 13 is 0.03mm 2 ~2.5mm 2， , the depression depth of the depression area 11 of the forming cage 1 is 0.1mm-0.8mm. In this embodiment, preferably, the surface of the forming cage 1 has 759 through holes 13 per square centimeter, and the area of ​​a single through hole 13 is 0.08mm 2 , the recessed depth of the recessed region 11 is 0.6mm. The forming cage 1 is set on the vacuum forming drum 2, and the vacuum forming drum 2 is connected with a vac...

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Abstract

The invention discloses a molding device. The molding device comprises a molding mesh cage, a vacuum molding drum, a concave roller and a needle roller. The molding mesh cage is a seamless cylindricalmetal mesh cage, wherein the surface of the seamless cylindrical metal mesh cage is provided with sunken areas and non-sunken areas. The sunken areas and the non-sunken areas in the molding mesh cageare each provided with through holes. The vacuum molding drum is provided with a vacuum suction opening. The surface of the concave roller is provided with indented areas and non-indented areas. Thesurface of the needle roller is provided with perforated areas and countersunk areas. The molding mesh cage is arranged on the vacuum molding drum in a sleeving manner. The concave roller is matched with the molding mesh cage and the needle roller. The invention further discloses a method for manufacturing a porous thin film through the molding device. When the porous thin film with large holes and small holes is manufactured through the molding device and the manufacturing method, compared with an existing secondary perforation mode, the links of equipment rolling and unrolling and transportation can be saved; and the effects that energy consumption is saved, cost is lowered, production efficiency is improved, and secondary pollution of materials is prevented are achieved.

Description

technical field [0001] The invention relates to the field of porous film production, in particular to a forming device and a method for manufacturing a porous film using the same. Background technique [0002] The porous film is used for the surface layer of sanitary napkins and sanitary pads, so that the body fluid can quickly pass through the openings of the porous film to reach the absorbent core layer, and it can also effectively prevent the absorbed body fluid from returning to the surface layer under the condition of extrusion, giving People feel dry and comfortable. However, porous films are usually porous plastic films formed by melting, casting, and punching thermoplastic resins such as polyethylene. Therefore, traditional porous films have shortcomings such as plastic feeling, poor flexibility, and slow absorption speed. In order to improve these shortcomings, Existing a kind of porous film with macropore and small hole, it is to have the small hole that extends t...

Claims

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Application Information

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IPC IPC(8): B29C59/06B26F1/24B29L7/00
CPCB26F1/24B29C59/06B29L2031/737B29L2007/00Y02E60/10
Inventor 李世煌肖德全巫朝胜林燕
Owner XIAMEN YANJAN NEW MATERIAL CO LTD
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