Device for recovering bulk of nonwoven cloth, and method for recovering bulk of nonwoven cloth

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

Active Publication Date: 2015-04-15
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

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  • Device for recovering bulk of nonwoven cloth, and method for recovering bulk of nonwoven cloth
  • Device for recovering bulk of nonwoven cloth, and method for recovering bulk of nonwoven cloth
  • Device for recovering bulk of nonwoven cloth, and method for recovering bulk of nonwoven cloth

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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...

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Abstract

The invention provides a device for recovering bulk of nonwoven cloth, and a method for recovering bulk of nonwoven cloth, and the flow sped of hot wind is properly adjusted. A device for recovering bulk of nonwoven cloth by blowing hot air on and heating a nonwoven cloth conveyed in a conveying direction, wherein said device has a case member open on both conveying-direction ends, the opening on one conveying-direction end of the case member being provided with an inlet for use when the nonwoven cloth is conveyed, and the opening at the other conveying-direction end of the case member being provided with an outlet for use when the nonwoven cloth is conveyed. The portion on the inlet side of the case member is provided with an injection port via which the hot air is injected into the space inside the case member toward the portion on the outlet side. The sectional area of the space inside the case member in a first position on the downstream side in the conveying direction from the position at which the injection opening is provided is larger than the sectional area of the space inside the case member in a second position between the position at which the injection opening is provided, and the first position. The hot air injected via the injection port flows from the upstream side in the conveying direction to the downstream side in the conveying direction via the first position and the second position, while contacting one of the two surfaces of the nonwoven cloth in the space inside the case 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 Applications(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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