JPH0623287Y2 - Liquid absorbent article - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a liquid absorbent article, and more specifically, it is a disposable puff, sanitary cotton (cut cotton), postpartum pad disposable, lotion, body fluid, etc. Article for absorbing liquid.

(Prior Art) Conventionally, for example, in a decorative puff, a laminated body in which nonwoven fabrics are superposed on both surfaces of a batting member is left practically, and both sides of the laminated body are bonded by heat welding. This cosmetic puff has an advantage that the heat-bonded portion, that is, the joint portion of the laminated body is not located on the both side edges thereof, and therefore does not hurt the skin even when the both side edges rub the user's skin during use. .

(Problems to be solved by the invention) However, the use of the decorative puff has a drawback that the fibers constituting the batting member fall off from both side edges which are unheated areas of the fiber laminate and adhere to the skin during use. The problem is to solve this.

Therefore, an object of the present invention is to provide a cosmetic puff and other liquid absorbent articles having a fiber laminated structure similar to the cosmetic puff, and to prevent the fibers from falling off without damaging the user's skin. The problem is solved by intermittently joining both side edges of the body.

(Means for Solving the Problem) The present invention for achieving the above object is to leave both side edges of a fiber laminate in which nonwoven fabric members are superposed on both sides of a batting member, and to join both sides thereof along these edges. In a preferred embodiment in which both side edges are intermittently joined in the direction along them, the distance between the joint portions at both side edges of the fiber laminate is shorter than the fiber length of the batting member.

Further, in a preferred embodiment, the joint portions on both sides and both side edges of the fiber laminate are formed in a groove shape. This groove-shaped joint can be formed by pressurizing this portion, preferably under heating.

As a method of joining the joints, a pressure bonding method, a thermocompression bonding (welding) method, an adhesive bonding method, a needling method, or the like can be used.

(Operation) In the present invention having the above configuration, the fiber laminate is maintained in the laminated state by the joint portions on both sides thereof, and delamination and shape collapse of the laminate during use are prevented. Further, the fibers of the batting member are held between the non-woven fabric members on both side edges by the joints on both side edges of the fiber laminate, and the fibers are prevented from falling off from the both side edges.

(Embodiment) An embodiment of the present invention will be described below using the makeup puff shown in the drawings as an example.

In FIGS. 1 to 4, a nonwoven fabric member 2 is superposed on both surfaces of a batting member 1 to form a rectangular fiber laminate 3. The fiber laminate 3 has its both side edges 4 left with an appropriate width,
Both sides thereof are continuously joined by thermocompression bonding (welding) along this. Similarly, in the fiber laminate 3, both side edges 4 are joined at predetermined intervals in the direction along them. These joint portions 5 and 6 are formed in a concave groove shape. The distance between the joints 6 is shorter than the length of the fibers forming the batting member 1, which is preferable in order to minimize the loss of fibers. Further, the width (thickness) of the joint portion 6 in the direction along the side edge of the fiber laminate 3 is in the range of 0.5 to 2.5 mm, which may hurt the user's skin or give a foreign body sensation to the skin. It is preferable to prevent this.

The batting member 1 has a fiber length of 30 to 30 such as cotton and rayon.
A web of a 100 mm hydrophilic fiber aggregate is appropriately cut into large pieces. The non-woven fabric member 2 is composed of hydrophilic fibers and hydrophobic fibers such as polyester and polypropylene alone or in a mixture, and does not use a chemical binder, for example, needling method, melt bond method, spun bond method. A nonwoven fabric formed by binding fibers by a method or the like is appropriately cut into large pieces. In order to facilitate the heat-welding property, the fibers of the batting member 1 may be mixed with heat-welding (hydrophobic) fibers within a range that does not reduce the liquid absorbency.

The joints 5 and 6 can be simultaneously applied by a thermocompression molding die. Needless to say, a large number of such products of the present invention can be simultaneously taken from the wide laminate (raw material).

In addition, if necessary, in FIG. 2, the joint portions 5 and 6 may be provided at the upper and lower ends of the fiber laminate 3, but in the case of a makeup puff, for example, the upper and lower ends are held by fingertips. Since the central area is used, the joints 5, 6 are
Even if it is not provided, the fibers rarely fall off and adhere to the skin.

(Effect of the Invention) According to the liquid absorbent article of the present invention, both sides of the fiber laminate and both side edges thereof are joined together, and joint portions of the both side edges are arranged intermittently in the direction along them. ,
At the time of use, it is possible to prevent the fibers constituting the batting member from falling off from both side edges thereof and adhering to the user's skin as much as possible, and moreover, the joint portion is hardened by thermocompression bonding (heat welding). Even if this rubs the skin in a line-contact manner, it hardly hurt the skin nor gives the skin a feeling of foreign matter. The effect of preventing the fibers from falling off is further enhanced by setting the distance between the joints at both side edges of the fiber laminate shorter than the fiber length of the batting member.

Further, when the joint portions on both sides and both side edges of the fiber laminate are formed in a concave groove shape, even if the surface of the fiber laminate rubs the skin relatively surface-contacting, the joint portion However, even if it is hardened by thermocompression bonding (heat welding), its joint hardly contacts the skin directly and strongly, so that it hardly hurts the skin or gives the skin a feeling of foreign matter.

[Brief description of drawings]

The drawings show a makeup puff as one embodiment of the present invention. Fig. 1 is a perspective view, Fig. 2 is a plan view, and Figs. 3 and 4 are Fig. 2 III-III line and IV- line, respectively. Partial cutaway enlarged cross-sectional view taken along line IV. 1: batting member, 2: non-woven member, 3: fiber laminate, 5, 6: joint part

Claims (3)

[Scope of utility model registration request] Claim: What is claimed is: 1. A fibrous laminate comprising a non-woven fabric member laminated on both surfaces of a batting member, with both side edges left joined together, and both side edges intermittently joined in a direction along these sides. A liquid-absorbent article characterized by being present. 2. The liquid absorbent article according to claim 1, wherein the distance between the joint portions at both side edges of the fiber laminate is shorter than the fiber length of the batting member. 3. The liquid absorbent article according to claim 1, wherein the joint portions on both sides and both side edges of the fiber laminate are formed in a groove shape.