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CN-121987423-A - Absorbent article

CN121987423ACN 121987423 ACN121987423 ACN 121987423ACN-121987423-A

Abstract

The invention provides an absorbent article. The absorbent article can sufficiently obtain the effect of the skin care agent on the skin, and the arrangement of the skin care agent can be easily confirmed. The absorbent article comprises a sheet material comprising hydrophobic fibers on the surface portion of one surface, and a colorless transparent hydrophilic skin care agent disposed on the surface portion of the sheet material. One surface of the sheet is provided at a portion that contacts the skin when worn. The absorbent article is configured such that the area ratio of the color change region generated by the skin care agent in the oil absorbing sheet is 5% or more and 35% or less in the erasure test of the sheet using the oil absorbing sheet.

Inventors

  • SHEN LIANLIAN
  • XU XINGWANG
  • NIU JIAHAO
  • KANEKO TOMOHISA

Assignees

  • 尤妮佳股份有限公司

Dates

Publication Date
20260508
Application Date
20241108

Claims (9)

  1. 1. An absorbent article, wherein, The absorbent article comprises: A sheet material having a surface portion of one face composed of hydrophobic fibers, and A colorless transparent hydrophilic skin care agent disposed on the surface portion of the sheet, The one surface of the sheet is provided at a portion which contacts the skin when worn, The absorbent article is configured such that, in an erasure test of the sheet using an oil absorbing sheet, the area ratio of the color change region generated by the skin care agent in the oil absorbing sheet is 5% or more and 35% or less.
  2. 2. The absorbent article of claim 1, wherein, The average value of the water pressure resistance value of the sheet is more than 180 mm.
  3. 3. The absorbent article of claim 1, wherein, The absorbent article further includes an adjacent sheet adjacent to the sheet and having a higher hydrophilicity than the sheet, The skin care agent is also arranged on the surface of the adjacent sheet which contacts with skin when being worn, In the absorbent article, the area ratio is 5% or less in the erase test performed on the adjacent sheet.
  4. 4. The absorbent article according to claim 1 or 2, wherein, The weight per unit area of the skin care agent is more than 0.3g/m 2 and less than 3.9g/m 2 .
  5. 5. The absorbent article according to claim 1 or 2, wherein, The absorbent article includes a colored sheet having colored regions that are colored, The presence region of the skin care agent in the sheet overlaps with the colored region in the thickness direction of the sheet.
  6. 6. The absorbent article of claim 5, wherein, The colored sheet is a sheet of material that, The coloured region is located on one or the other side of the sheet, At least part of the existing region overlaps the colored region.
  7. 7. The absorbent article of claim 5, wherein, The groups of the colored region and the existing region are arranged laterally symmetrically with respect to a central line that passes through a center in a width direction of the absorbent article and extends in a longitudinal direction.
  8. 8. The absorbent article according to claim 1 or 2, wherein, The absorbent article further comprises: Another sheet material provided on the other surface side of the sheet material, and An elastic member disposed between the other sheet and the sheet, The amount of the skin care agent in the case of the contracted state of the elastic member is larger than the amount of the skin care agent in the case of the extended state of the elastic member in terms of the amount of the skin care agent per unit area as viewed from the thickness direction of the sheet.
  9. 9. The absorbent article according to claim 1 or 2, wherein, The absorbent article is a disposable diaper of the belt type, The absorbent article further includes a pair of side flaps provided on both sides in the width direction of the absorbent article, The pair of side flaps are each the sheet, The skin care agent is disposed on the skin-side surface of each of the pair of side flaps in a region where the pair of side flaps are overlapped after being folded.

Description

Absorbent article Technical Field The present invention relates to an absorbent article. Background There is known an absorbent article coated with a skin care agent such as a moisturizing agent in order to suppress friction between the absorbent article and the skin, and skin roughness and skin inflammation caused by irritation of the skin from body fluid or excrement. For example, patent document 1 discloses a disposable diaper. The disposable diaper has a top sheet constituting a use side surface, a liquid-impermeable sheet provided on a back surface side, and an absorbent element interposed between the top sheet and the liquid-impermeable sheet, and a moisturizing agent mainly composed of glycerin is applied to the top sheet. The application area of the moisturizer is an exposed area that can be directly visually recognized from at least the use surface side in the developed state of the product. The application region has a high-concentration application region of the moisturizer at least one of the front-rear direction peripheral portion and the width direction peripheral portion of the exposed region, and has a low-concentration application region of the moisturizer in an intermediate region between the high-concentration application regions. The method for manufacturing the disposable diaper comprises an application step of applying a moisturizing agent mainly comprising glycerin to a top sheet and an application confirmation step of confirming whether the moisturizing agent is applied. The application area of the moisturizer is an exposed area that can be directly visually recognized from at least the use surface side in the developed state of the product. The application region has a high-concentration application region of the moisturizer at least one of the front-rear direction peripheral portion and the width direction peripheral portion of the exposed region, and has a low-concentration application region of the moisturizer in an intermediate region between the high-concentration application regions. In the application confirmation step, a near infrared camera is used to capture a high-density application region, and the presence or absence of a humectant is confirmed based on the level of the image density. Prior art literature Patent literature Patent document 1 Japanese patent application laid-open No. 2021-186007 Disclosure of Invention Problems to be solved by the invention Generally, in disposable diapers, a topsheet is hydrophilized in order to smoothly transfer excreted urine to an absorber. Therefore, in the disposable diaper of patent document 1, even if a hydrophilic humectant such as glycerin is properly disposed on the top sheet, the hydrophilic humectant may be transferred from the top sheet to the absorbent body. In this case, the effect of the humectant may not be sufficiently obtained. Therefore, it is extremely important to confirm whether or not the humectant is properly disposed in terms of quality assurance. In patent document 1, as a test method for the confirmation, a method is used in which a high-concentration application region and a low-concentration application region of a humectant are provided in an application region of the humectant, and the high-concentration application region is photographed by a near infrared camera. Since such a confirmation method requires a device for photographing and analyzing, it is not simple, and thus, for example, in a case where a person in charge of a shop gives a customer a feature of a product, there is a concern that implementation becomes difficult. Accordingly, an object of the present invention is to provide an absorbent article which can sufficiently obtain the effect of a skin care agent on the skin and can easily confirm the arrangement of the skin care agent. Solution for solving the problem The absorbent article comprises a sheet material having a surface portion of one surface thereof made of a hydrophobic fiber, and a colorless transparent hydrophilic skin care agent disposed on the surface portion of the sheet material, wherein the one surface of the sheet material is provided at a portion that contacts the skin when worn, and wherein the absorbent article is configured such that, in an erasure test of the sheet material using an oil absorbing sheet, the area ratio of a color change region generated by the skin care agent in the oil absorbing sheet is 5% or more and 35% or less. ADVANTAGEOUS EFFECTS OF INVENTION According to the present invention, an absorbent article can be provided which can sufficiently obtain the effect of a skin care agent on the skin and can easily confirm the arrangement of the skin care agent. Drawings Fig. 1 is a plan view showing an expanded state of a configuration example of an absorbent article according to embodiment 1. Fig. 2 is a cross-sectional view along the longitudinal centerline CL in fig. 1. Fig. 3 is a cross-sectional view along the widthwise centerline CW in fig. 1. Fig. 4 is