Title:
TOP SHEET FOR DISPOSABLE DIAPER AND SANITARY PAD WITH IMPROVED SKIN FRIENDLINESS
Document Type and Number:
WIPO Patent Application WO/2010/062058
Kind Code:
A2
Abstract:
Provided is a top sheet for a disposable diaper and sanitary pad which is prepared by manufacturing a perforated hydrophobic nonwoven having a weight of 25g/m2 or less, and embossing/laminating the nonwoven and an absorbent material through thermal adhesion or ultrasonic adhesion. Conventional hydrophilic nonwovens commonly used as top sheets for disposable diapers and sanitary pads have suffered from the major shortcoming that they cause skin irritation. Unlike conventional hydrophilic nonwovens, the novel perforated hydrophobic nonwoven used as the top sheet for a diaper according to the present invention are provided with decreased skin irritation and improved skin friendliness and dryness. The process for manufacturing a disposable diaper or sanitary pad using a perforated nonwoven alone may cause problems. The nonwoven top sheet of the present invention has functions and roles to overcome such problems caused by using the perforated nonwoven alone. Furthermore, less lint is produced on the surface of the nonwoven top sheet during the process of embossing/laminating the perforated hydrophobic nonwoven having a weight of 25g/m2 or less and the absorbent material through thermal adhesion or ultrasonic adhesion. Furthermore, the surface of the nonwoven top sheet of the present invention is patterned or dimpled during embossing/laminating, thereby reducing the area contacting the skin of a user. As described above, the nonwoven top sheet for a sanitary pad and diaper has a reduced amount of surface active agent contacting the skin of the user, has less lint on the surface thereof, and has a reduced area contacting the skin of the user, thereby having improved skin friendliness.
Inventors:
SHIM JAE HUN (KR)
Application Number:
PCT/KR2009/006421
Publication Date:
June 03, 2010
Filing Date:
November 03, 2009
Export Citation:
Assignee:
KUMKANGPOLD CO LTD (KR)
SHIM JAE HUN (KR)
SHIM JAE HUN (KR)
International Classes:
A61F13/51; A61F13/511
Foreign References:
| KR100416109B1 | 2004-01-31 | |||
| KR20010011672A | 2001-02-15 | |||
| KR100568901B1 | 2006-04-10 | |||
| US4629643A | 1986-12-16 | |||
| US5643240A | 1997-07-01 |
Attorney, Agent or Firm:
SEONG, NAK HOON (KR)
성낙훈 (KR)
성낙훈 (KR)
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