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Thermoplastic elastomer nonwoven fabric roll, and method and device for producing the same

A thermoplastic elastomer, thermoplastic elastic technology, applied in transportation and packaging, textiles and papermaking, textiles, etc., can solve problems such as molding changes

Inactive Publication Date: 2006-05-03
SEIREN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, with regard to the present nonwoven fabric manufacturing apparatus 100, the following problem can occur: when the nonwoven fabric 131 is peeled off from the conveyer belt 115, considerable tension acts on the nonwoven fabric 131, so that the nonwoven fabric 131 Longitudinal wrinkles are produced, and when the non-woven fabric 131 that produces such longitudinal wrinkles is pinched by the nip roller, such longitudinal wrinkles will be fixed on the non-woven fabric 131.
Therefore, in order to untie the nonwoven fabric roll 131 and draw the nonwoven fabric 131, the action of tension corresponding to this is required, and for this reason, the nonwoven fabric 131 is stretched in the longitudinal direction and elastically deformed in the width direction by contraction. , After the above-mentioned punching process, the deformation is recovered (delayed recovery), and the shape of the molding is changed, which causes a problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Thermoplastic elastomer nonwoven fabric roll, and method and device for producing the same
  • Thermoplastic elastomer nonwoven fabric roll, and method and device for producing the same
  • Thermoplastic elastomer nonwoven fabric roll, and method and device for producing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A. Examples 1-4, Comparative Example 1

Embodiment 1

[0050] a) Raw material

[0051] Three types of soft segment components: diol with a molecular weight of 2000 obtained from butanediol, hexanediol, and adipic acid, 4,4'-diphenylmethane diisocyanate (MDI), and 1,4-butanediol The thermoplastic polyurethane with a Shore A hardness of 90 obtained by post-crosslinking polymerization of the components is used as a raw material. Furthermore, this polymer contained 0.2% by weight each of a phenolic antioxidant and a benzotriazole-based light stabilizer. Such a polymer has a melt viscosity of 12,000 poise measured at 190°C using a flow tester.

[0052] b) Manufacturing device

[0053] As the manufacturing device of the nonwoven fabric roll 130, use such as figure 1 Shown equipped with spinning device 101 and conveyor belt 115, and as Figure 4 Shown is an arrangement with rotating roller 2 , feed rollers 5 , 6 and winding device 125 . Also, in the melt extruder 110, a screw having an L / D ratio of 25 and a diameter of 50 mm was used...

Embodiment 2

[0058] As a manufacturing device, except as Figure 5 It is shown that the expansion roll 3, the feed rolls 5, 6, and the winding rolls 126, 127 are arranged between the rotating roll 2 and the feed roll 5, except that the circumferential speed is 4.92 m / min, the rest are the same as those of the above-mentioned embodiment. 1, thereby obtaining the nonwoven fabric roll 130 of Example 2. For the expander roll 3, a structure in which spiral grooves were formed on its outer periphery was used, and its peripheral linear velocity was 5.03 m / min.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The present invention provides a method for manufacturing thermoplastic elastomer nonwoven fabric rolls. The melt-spun thermoplastic elastomer filaments are laminated on a conveyor belt (115) to form a sheet-shaped nonwoven fabric (131), which is introduced into a On the rotating roller (2) above the delivery area of ​​the conveyor belt (115) and peel off, it is wound on the paper tube (132) to become a non-woven fabric roll (130). Since the tension acting on the non-woven fabric (131) is approximately equal to the peeling force, only the necessary and minimum tension can be applied to the non-woven fabric (131), and the peeling can be performed with this tension. As a result, the pull-out tension is 0.25 g / cm / unit weight or less, and a nonwoven fabric roll (130) with reduced shape changes associated with longitudinal wrinkles and delayed recovery can be formed.

Description

technical field [0001] The present invention relates to a nonwoven fabric formed of thermoplastic elastomer filaments, a nonwoven fabric roll formed by winding the same into a roll, and a method and a manufacturing apparatus for the nonwoven fabric roll. Background technique [0002] Figure 9 Shown is an example of an apparatus for manufacturing a thermoplastic elastomer nonwoven fabric roll. As shown in the figure, the manufacturing apparatus 100 of this nonwoven fabric roll is equipped with a melt extruder 110 that melts and sends out dried thermoplastic elastomer chips and a melt extruder that spins the melted thermoplastic elastomer into filaments through a nozzle. body blowing head 102, and is composed of the following devices: a spinning device 101 that spins out filaments by the so-called melt blowing method; it is arranged below the above-mentioned melt blowing head, and the filaments spun out by the melt blowing head 102 are formed in sheets Collect and convey the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/54B65H18/08B65H23/025D04H1/70D04H3/14D04H3/16D04H13/00
CPCD04H3/005D04H3/14D04H3/16Y10T428/24124Y10T442/60Y10T442/601Y10T442/602Y10T442/637Y10T442/681B65H18/00D04H3/00D06C3/00
Inventor 山川幸夫古谷太多司手岛勉田中丰
Owner SEIREN CO LTD
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