JP2012010968A - Absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To apply beautiful whitening effect to the joint part or the like easy to blacken of the crotch of a wearer.SOLUTION: An absorbent article 1 has a liquid-permeable surface sheet, a liquid-impermeable back sheet and the absorber arranged between the surface sheet and the back sheet. Both side edge parts 10 provided along the longitudinal direction L of the absorbent article 1 on the skin contact surface side of the surface sheet are coated with a phosphate ester type vitamin C.

Description

  The present invention relates to an absorbent article.

  Patent Document 1 discloses an absorbent article having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet, the skin of the wearer In order to protect the skin, an absorbent article is disclosed in which hydrophobic (that is, lipophilic) esterified vitamin C is applied to the skin contact surface side of the topsheet.

CN101507827A

  According to the above-mentioned absorbent article, the effect of protecting the wearer's skin as described above can be achieved, but the whitening effect on the root portion of the wearer's crotch that is easily darkened cannot be achieved.

  Then, this invention is made | formed in view of the above-mentioned subject, and it aims at providing the absorbent article which can show the whitening effect with respect to the wearer's crotch root part etc. which are easy to darken.

  A first feature of the present invention is an absorbent article having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet. The gist of the invention is that a hydrophilic vitamin C derivative is applied to the skin contact surface side of the top sheet and to both side edges along the longitudinal direction of the absorbent article.

  As described above, according to the present invention, it is possible to provide an absorbent article capable of exerting a whitening effect on a base portion of a wearer's crotch that is easily darkened.

It is the top view seen from the skin contact surface side of the absorptive article concerning a 1st embodiment of the present invention. It is the top view seen from the skin contact surface side of the absorptive article concerning modification 1 of the present invention.

(First embodiment of the present invention)
With reference to FIG. 1, the absorbent article 1 which concerns on the 1st Embodiment of this invention is demonstrated. For example, the absorbent article 1 according to the present embodiment is a panty liner, an incontinence pad, a sanitary napkin, or the like.

  The absorbent article 1 which concerns on this embodiment has a liquid-permeable surface sheet, a liquid-impermeable back sheet, and the absorber arrange | positioned between a surface sheet and a back sheet. In addition, in the absorbent article 1 which concerns on this embodiment, the second sheet may be arrange | positioned between the surface sheet and the absorber.

  In FIG. 1, the top view seen from the skin contact surface side of the absorbent article which concerns on the 1st Embodiment of this invention is shown.

  The absorbent body 2 is composed of pulverized pulp, a polymer absorbent polymer, and a core wrap that wraps both. Here, the high molecular polymer is a granular polymer of a sodium acrylate copolymer.

  A core wrap is a sheet of any material that absorbs liquid. For example, a tissue may be used as the core wrap, or an air laid sheet in which hydrophilic fibers or pulverized pulp is formed into a sheet shape by the air laid method may be used.

  Moreover, as shown in FIG. 1, the absorbent article 1 according to the present embodiment may be provided with a plurality of compressed grooves 21, 22, and 23. Here, the pressing grooves 21, 22, and 23 are configured to squeeze from the top sheet to the absorber.

  Moreover, the absorbent article 1 which concerns on this embodiment has a pair of wing part 41 currently formed so that it may extend to the both outer sides of the width direction W of the absorbent article 1, as shown in FIG. It may be. Furthermore, the absorbent article 1 according to the present embodiment may have a pair of hip flap parts 42 behind the wing part 41 in the longitudinal direction L of the absorbent article 1.

  Here, in the wing part 41 and the hip flap part 42, the adhesive for fixing the absorbent article 1 to the underwear is applied to the clothes contact surface side of the back sheet.

  When a wearer wears the absorbent article 1 in underwear, the wearer wraps the wing part 41 in the crotch of the underwear, spreads the hip flap part 42 on the underwear, and fixes the absorbent article 1 to the underwear.

  Further, as shown in FIG. 1, the absorbent article 1 according to the present embodiment is hydrophilic on both side edges 10 along the longitudinal direction L of the absorbent article 1 on the skin contact surface side of the topsheet. Sexual vitamin C derivative is applied.

  Vitamin C derivatives are phosphate esters of vitamin C in order to increase penetration and absorption into the skin, and have whitening effects and skin aging prevention effects. It is said that it is effective in solving the problem.

  Vitamin C derivatives are more stable than vitamin C and have the property of being less oxidized. In addition, vitamin C derivatives are said to change into vitamin C by the power of an enzyme (phosphatase) possessed by humans in the skin and exert its effect.

  Vitamin C has the effect of inhibiting melanin production and suppressing pigmentation (improving stains), reducing the produced melanin (lightening browned melanin), and producing collagen. There is work.

  However, since vitamin C is consumed by each part of the body when ingested through food, etc., the amount of vitality that exerts its physiological action is small for the health of the skin and skin. There was a problem of becoming.

  Therefore, in recent years, various products have been developed that can be absorbed directly from the skin, such as cosmetics containing a few percent of vitamin C derivatives, and that exert the effect of vitamin C for a long time near the dermis layer of the skin. ing.

  Vitamin C derivatives include lipophilic vitamin C derivatives “ascorbyl tetrahexyl decanoate (VCIP) new vitamin C derivatives”, hydrophilic vitamin C derivatives “phosphate-type vitamin C”, parent “Trisodium ascorbyl phosphate palmitate (APPS, apressie) next-generation vitamin C derivative”, which is a vitamin C derivative having both oily and hydrophilic properties, is included.

  Here, the phosphoric acid ester type vitamin C is also called “phosphoric acid type vitamin C (VCP / AP: ascorbic acid phosphate)”. Phosphate-type vitamin C includes “ascorbyl magnesium phosphate (VC-PMG, APM)”, “ascorbyl phosphate trisodium (AP-100)” and the like.

  According to the absorbent article 1 according to the present embodiment, the hydrophilic vitamin C derivative is applied to both side edges 10 along the longitudinal direction L of the absorbent article 1 on the skin contact surface side of the topsheet. Therefore, a whitening effect can be exerted on the root portion of the crotch of the wearer who is easily darkened.

  In general, hydrophilic vitamin C derivatives are said to have a faster penetration rate into the skin than lipophilic vitamin C derivatives. Therefore, the hydrophilic vitamin C derivative can provide a whitening effect with immediate effect.

(Modification 1)
Hereinafter, with reference to FIG. 2, the absorbent article 1 according to the first modification of the present invention will be described focusing on differences from the absorbent article 1 according to the first embodiment described above.

  As shown in FIG. 2, in the absorbent article 1 according to the first modification example, the leak-proof walls 3 are provided on both side edges 10 along the longitudinal direction L of the absorbent article 1.

  In the absorbent article 1 according to the first modification, the hydrophilic vitamin C derivative is applied to the leak-proof walls 3 provided at the both side edges.

  Although the present invention has been described in detail using the above-described embodiments, it is obvious to those skilled in the art that the present invention is not limited to the embodiments described in this specification. The present invention can be implemented as modified and changed modes without departing from the spirit and scope of the present invention defined by the description of the scope of claims. Therefore, the description of the present specification is for illustrative purposes and does not have any limiting meaning to the present invention.

DESCRIPTION OF SYMBOLS 1 ... Absorbent article 10 ... Both-side edge part 21, 22, 23 ... Squeeze groove 3 ... Leak-proof wall 41 ... Wing part 42 ... Hip flap part

Claims (2)

An absorbent article having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet,
A hydrophilic vitamin C derivative is applied to both side edges along the longitudinal direction of the absorbent article on the skin contact surface side of the topsheet.   The absorbent article according to claim 1, wherein the hydrophilic vitamin C derivative is applied to a leak-proof wall provided at both side edges.

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