Volume restoration device for nonwoven fabric and volume restoration method for nonwoven fabric

A volume recovery and non-woven fabric technology, applied in the direction of non-woven fabrics, fabric elongation, textiles and papermaking, can solve problems such as unresponsiveness and volume reduction

Active Publication Date: 2016-02-24
UNI CHARM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the nonwoven fabric is drawn out from the nonwoven fabric roll in the production line of absorbent articles, only the nonwoven fabric after the volume reduction is drawn out and supplied, that is, the nonwoven fabric with the above-mentioned bulkiness cannot be responded to. Require

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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  • Volume restoration device for nonwoven fabric and volume restoration method for nonwoven fabric
  • Volume restoration device for nonwoven fabric and volume restoration method for nonwoven fabric
  • Volume restoration device for nonwoven fabric and volume restoration method for nonwoven fabric

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Embodiment approach

[0040] Regarding nonwoven fabrics targeted for volume restoration

[0041] In the volume restoration device 20 and the volume restoration method of the nonwoven fabric 3 of the present embodiment, the nonwoven fabric 3 to be the top sheet 3 of the pet sheet 1 is treated as a processing object.

[0042] Figure 1A It is an external perspective view of a pet sheet 1 as an example of an absorbent article, Figure 1B is in Figure 1A The enlarged perspective view after cutting the sheet 1 along the line BB in .

[0043] Sheets for pets 1 are used to treat the excrement of animals such as dogs and cats, such as Figure 1A As shown, it can be used by laying it on the floor or the like. This pet sheet 1 has, for example, a liquid-permeable top sheet 3 in a rectangular shape when viewed from above, a liquid-impermeable back sheet 5 of approximately the same shape, and a liquid-absorbent sheet sandwiched between these sheets 3 and 5 . The absorber 4. Moreover, the absorber 4 is...

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 invention provides a volume recovery device for non-woven fabrics and a volume recovery method for non-woven fabrics, in which the flow rate of hot air is properly adjusted. This device blows hot air to the nonwoven fabric conveyed along the conveying direction to heat the nonwoven fabric so as to restore the volume of the nonwoven fabric. It has a shell member with openings at both ends in the conveying direction. The opening on one end side / the other end side is provided with an inlet / outlet for conveying non-woven fabrics, and the inlet side part of the shell member is provided with an injection port for spraying hot air into the space in the shell member toward the part on the outlet side, and the shell member The cross-sectional area of ​​the space in the interior is larger than the cross-sectional area at the second position located between the position where the jet port is provided and the first position in the transport direction at the first position on the downstream side in the conveying direction than the position where the jet port is provided. The hot air flows from the upstream side in the conveying direction through the first position and the second position to the downstream side in the conveying direction while contacting one surface of the nonwoven fabric in the space in the shell member.

Description

technical field [0001] The invention relates to a volume recovery device for nonwoven fabrics and a volume recovery method for nonwoven fabrics. Background technique [0002] Conventionally, sanitary napkins and disposable diapers have been used as absorbent articles. In addition, sheets for pets included in the category of the absorbent article are also widely used as toilets for pets. In such an absorbent article, a liquid-permeable top sheet is provided on a portion that contacts the skin of a user or the like. In addition, in recent years, from the viewpoint of reducing stickiness to the skin, high liquid drainage is required for the top sheet. Therefore, it is preferable to use a nonwoven fabric with bulkiness as the material of the top sheet. [0003] This nonwoven fabric is formed into a tape by an appropriate method such as a carding method, and then wound into a roll and stored as a nonwoven fabric roll. And when it is going to be used, the nonwoven fabric roll i...

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): D06C7/00
CPCD06C7/00D04H1/70D06C17/00D06C3/00
Inventor 奥田淳光野聪
Owner UNI CHARM CORP
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