WO2009103200A1

WO2009103200A1 - Absorbent article with nice air permeability

Info

Publication number: WO2009103200A1
Application number: PCT/CN2008/070347
Authority: WO
Inventors: 孙仲河
Original assignee: Sun Zhonghe
Priority date: 2008-02-22
Filing date: 2008-02-22
Publication date: 2009-08-27

Abstract

An absorbent article with nice air permeability comprises a front waist region (a), a rear waist region (c) and a crotch region (b) between the front waist region (a) and the rear waist region (c) along its length direction. The disposable diaper comprises a liquid pervious top sheet, an absorbent core and a liquid impervious back sheet along its thickness direction, which are integrated to each other. Elastic pieces (1) are provided near two sides of the front waist region (a) respectively along the width direction of absorbent article. Said elastic pieces (1) are set along the width direction and have arched bending part in its middle part.

Description

Specification for a breathable absorbent article

Technical field

[1] The present invention relates to a breathable absorbent article which is in the field of disposable sanitary articles such as diapers, diapers, diapers and the like.

Background technique

[2] An absorbent article comprising at least a liquid permeable topsheet, a liquid impervious backsheet and an absorbent core encased therebetween, is known in the state of use, having a front waist region, a back waist region and a front The crotch area between the waist area and the back waist area. The temperature-absorbing articles, such as diapers, are worn on the human body due to the long squats, the water discharged from the pores of the human body, and the moisture and ammonia generated by the wetness of the urine, and the diffusion of the sputum, thereby bringing the wearer into contact with the diaper. Excessive hydration causes discomfort and even causes diaper rash. The Chinese Patent Publication No. CN1868430, published on Nov. 29, 2006, discloses a ventilated window type disposable diaper in which an elastic piece is disposed laterally in the front waist region of the diaper, the elastic piece facing away from the wearer's skin. The direction of the bulge is raised to improve the breathability of the front waist region of the diaper. The study found that the middle part of the front waist area of the diaper has a high convexity in the middle part of the front waist region, which is not convenient to use. The elastic sheet of the same diaper is far away from the groin, and the improvement of the air permeability of the sac area is not completely .

Summary of the invention

[3] An object of the present invention is to provide a gas permeable absorbent article having good gas permeability, which is advantageous for sultry moisture and ammonia gas discharge in a wresting area, thereby improving wearing comfort.

[4] The technical solution adopted by the present invention is as follows: a breathable absorbent article having a front waist region along its length, a back waist region, and a gear region between the front waist region and the back waist region. Included in the thickness direction thereof, an integrally connected liquid-permeable surface layer, an absorbent core and a liquid-impermeable backing layer are respectively provided with elastic sheets along the width direction thereof on both sides of the front waist region, and the elastic sheets are along the width direction. Set and have an arched curvature in the middle.

[5] In the above-mentioned gas permeable absorbent article, an elastic band is laterally disposed on both sides of the front waist region, and both ends of the elastic band are fixed on the liquid permeable surface layer.

[6] The permeable absorbent article according to the first aspect of the present invention, wherein the front waist regions at the positions of the elastic sheets are respectively provided with two slits, and the middle portions of the elastic sheets are disposed on the side of the liquid permeable layer And the two ends are worn separately Pass through the slits and extend to the side of the liquid-impermeable backing that is away from the wearer's skin.

[7] The gas permeable absorbent article, wherein each of the elastic sheets has a slit extending laterally in the vicinity of a side edge thereof.

[8] The permeable absorbent article according to the first aspect of the present invention, wherein the elastic sheets are respectively provided with laterally extending slits in the vicinity of the side edges of the elastic sheets.

[9] By adopting the foregoing technical solution, the beneficial effects of the present invention are: by providing an elastic piece or an elastic band on both sides of the front waist region of the absorbent article, thereby forming a gas passage near the wearer's groin, so that the gear region The sultry moisture and ammonia gas can be dissipated through the two gas passages, improving wearing comfort and greatly reducing the incidence of diaper rash.

DRAWINGS

1 is a front elevational view of Embodiment 1 of the present invention;

Figure 2 is a longitudinal cross-sectional view of an elastic sheet according to Embodiment 1 of the present invention;

Figure 3 is a cross-sectional view showing an elastic piece and an elastic band of Embodiment 2 of the present invention;

Figure 4 is a schematic structural view of Embodiment 3 of the present invention;

Figure 5 is a schematic structural view of Embodiment 4 of the present invention;

Figure 6 is a schematic view showing the structure of Embodiment 5 of the present invention.

detailed description

[16] The present invention is an improvement on the basis of known absorbent articles, and it is believed that a description of a ventilated window type disposable diaper disclosed in Chinese Patent No. CN1829493, published on September 6, 2006, helps to better The technical problems to be solved by the present invention, the technical solutions to be used, and the beneficial effects obtained thereby are understood.

[1] Referring to FIG. 1 and FIG. 2, Embodiment 1 discloses a gas permeable diaper comprising an integrally connected gas permeable film, an absorbent core wrapped by toilet paper, and a hydrophilic nonwoven fabric along the thickness direction thereof, wherein the absorbent core is composed of The pulp fiber is mixed with the super absorbent resin, and along the length direction of the diaper, the diaper has a front waist region a, a back waist region c, and a file between the front waist region a and the back waist region c. Zone b, the diaper is further provided with a front waist patch for fixing it to the wearer and a left and right waist patch (this partial structure is well known and not related to the present invention, not shown), the front waist region a laterally disposed on the lateral sides of the vicinity of the top portion of the elastic sheet 1 is disposed laterally. Referring to FIG. 2, the elastic sheet 1 is substantially in an Ω-type structure, and the two ends of the elastic sheet 1 are respectively fixed to the hydrophilic by adhesive. a non-woven fabric surface, the middle portion of the elastic sheet 1 has an arched curvature convex toward the side of the hydrophilic non-woven fabric, and the arc-shaped bending forms a space between the wearer's skin and the hydrophilic non-woven fabric. Thereby, the sultry moisture and ammonia in the diaper region b are smoothly discharged, and the venting performance of the diaper is remarkably improved.

Referring to FIG. 3, the second embodiment discloses another baby diaper which is improved on the basis of the foregoing first embodiment, and an elastic band 2 is further disposed on each elastic piece 1, the elasticity The two ends of the belt 2 are fixedly fixed to the both ends of the elastic piece 1 in a state of being stretched. When the diaper is not subjected to an external force, the wearer of the position of the elastic band 2 is caused by the contraction of the elastic band 2 A space is formed between the skin and the hydrophilic nonwoven fabric to discharge the moist hot gas and the ammonia gas.

Referring to Fig. 4, a third embodiment discloses a baby diaper which differs from the first embodiment in that the elastic sheets 1 are fixed in a different manner. In this embodiment, the two slits 3 shown in FIG. 4 are respectively disposed on the lateral sides of the front waist region a of the diaper, and the two ends of the elastic sheets 1 respectively pass through the two slits 3 on the same side. The side of the air permeable membrane is located away from the skin, so that the intermediate arched portion of the elastic sheet 1 partially erects the diaper to form a space for the discharge of hot and humid gas and ammonia gas. The elastic sheet structure in this embodiment and the elasticity in the first embodiment The film structure is consistent.

Referring to FIG. 5, a fourth embodiment discloses a baby diaper which is improved on the basis of the third embodiment. In this embodiment, the two elastic pieces 4 are respectively fixed on the near the middle of both sides of a front waist region, and each side of the elastic sheet ₄ are respectively provided along transversely extending notch 41, due to the presence of the elastic sheet ₄ is bent arch, so that the cutout 41 and the elastic sheet 4 adjacent to the side of the gas-permeable membrane With the hydrophilic nonwoven fabric being lifted up, a gas passage is formed between the diaper lock zone b and the outside. The elastic sheet 4 of this embodiment has a structure and a fixing manner similar to that of the third embodiment.

Referring to FIG. 6, a fifth embodiment discloses a diaper. The two elastic pieces 5 are respectively fixed on the two sides of the middle portion of the front waist region in the same fixing manner as in the first embodiment, and the side edges of the elastic pieces 5 are respectively A laterally extending slit 51 is formed in the vicinity, and the elastic sheet 5 has an arched curvature, so that the side of the slit 51 adjacent to the elastic sheet 5 forms a gas permeable passage.

[22] The preferred method of fixing the elastic pieces of the above embodiments to the front waist region respectively is: using a convex-concave mold clamping mold (there is a heat source on one side and no heat source on the other side), and the elastic sheet and the local area of the front waist region below Shaped as 1 / 4 spherical or 1/2 truncated conical surface: away from the skin side of the mold concave and convex mold; near the skin a convex top clamping. Before the concave-convex mold is applied and heat-pressed, the adhesive layer should be applied between the structural layers or other consolidation methods should be carried out first.

Claims

Claim

[1] 1. A breathable absorbent article having a front waist region along a length thereof, a back waist region, and a gear region between the front waist region and the back waist region, including an integrally connected liquid permeable body along a thickness direction thereof. The surface layer, the absorbent core and the liquid-impermeable backing layer are characterized in that: elastic strips are respectively arranged along the sides of the front waist region along the width direction thereof, and the elastic sheets are arranged along the width direction and have arches in the middle portion thereof. Bending.

[2] 2. A gas permeable absorbent article according to claim 1, wherein: the front waist region is laterally disposed along an axial direction of each of the two sides of the width direction, and two elastic bands are respectively disposed. The ends are respectively fixed on the liquid permeable surface layer.

[3] The permeable absorbent article according to claim 1, wherein: the front waist regions at the positions of the elastic sheets are respectively provided with two slits, and the middle portions of the elastic sheets are disposed at the middle. The side of the liquid finish and its ends extend through the slits and extend to the side of the liquid-impermeable backing that is away from the wearer's skin.

[4] 4. A breathable absorbent article according to claim 3, wherein: the lateral edges of the respective elastic sheets are respectively provided with laterally extending slits.

[5] 5. A breathable absorbent article according to claim 1, wherein: the lateral edges of the respective elastic sheets are respectively provided with laterally extending slits.