JPS6132556Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a so-called sanitary wet napkin impregnated with a cleaning liquid such as water.

Generally, this type of napkin is used not only as a regular hand towel but also for cleaning the skin, anus, genitals, etc. Conventional napkins include those made of degreased wire and those made of nonwoven fabric, which are impregnated with a cleaning liquid such as water and sealed with an impermeable packaging material. However, when used, the former
Since the fibers are simply accumulated in a layer and come into direct contact with the skin to be cleansed, the fibers may detach and remain on the skin, causing discomfort to the user and depending on the skin to be cleansed, it may be extremely unpleasant. It was sanitary. Also, the latter is
Since it is a sheet and has a small fiber space, it cannot be impregnated with the desired amount of cleaning liquid, and it is also bulky and has poor elasticity, making it difficult to wipe, making it difficult to obtain a sufficient cleaning effect and having poor tactility. It was not good.

The purpose of the present invention is to provide a sanitary wet napkin that overcomes the above-mentioned drawbacks of the prior art and that can be cut into appropriate sizes as required for use.

To achieve the above object, the present invention provides a sanitary wet napkin in which the napkin is impregnated with a cleaning liquid and sealed in an impermeable packaging material, wherein the napkin is mainly made of hydrophilic fibers. A water-permeable double-sided nonwoven fabric sheet with a weight of 15 to 35 g/m ² as a material, and a 150 to 150-g/m2 water-permeable double-sided nonwoven fabric sheet interposed between the double-sided nonwoven sheet and containing hydrophilic fibers mixed with an appropriate amount of thermoplastic fibers.
The napkin is composed of a web-like water-absorbing core layer of 500 g/m ² , and the napkin is provided with discontinuous embossing, and the nonwoven sheets on both surfaces and the core layer are bonded to each other through the thermoplastic fibers. The sanitary wet napkin is characterized in that the laminated state of the fibers is maintained by thermally welding the fibers, and a break line is provided for cutting the napkin into an appropriate width.

Embodiments of the present invention will be described below with reference to the drawings.

1 is a schematic perspective view of a napkin according to the present invention, FIG. 2 is a partially enlarged plan view of the surface of the napkin, FIG. 3 is an enlarged sectional view taken along the line XX in FIG. The figure is a partially enlarged plan view of the break line of the napkin.

The napkin 1 includes a water-permeable double-sided nonwoven sheet 2,
It is composed of a water absorbent core layer 3 interposed between these.

The double-sided nonwoven sheet 2 is mainly made of hydrophilic fibers such as acetate, rayon, and cotton linters, and may be mixed with a small amount of hydrophobic fibers such as polyester and polypropylene, and these fibers are bonded or entangled. It maintains a sheet form and has a basis weight of 15 to 35 g/ ^m2 . The double-surface nonwoven sheet 2 is preferably one manufactured by a papermaking method, a melt bonding method, a high-speed liquid jetting method, etc., and is preferably a so-called binder-free nonwoven fabric in which no fiber binder is used, and more preferably the nonwoven fabric. It is a type of cloth with a kooleb attached to it, or a crepe-like shape. If the basis weight is less than 15g/ ^m2 , the required surface strength cannot be obtained and the basis weight is 35g/m2 or less.
g/ ^m2 or more, it is necessary to keep the overall average basis weight and thickness of the napkin 1 below a certain limit for economic reasons, so the basis weight and thickness of the water-absorbent core layer 3 must be reduced. This is undesirable because the overall water absorption capacity and elasticity of the napkin main body 1 are reduced.

The water-absorbent core layer 3 is made by mixing an appropriate amount of thermoplastic fibers such as polypropylene and polyester with hydrophilic fibers such as rayon, cotton, and cotton linter, and these fibers are simply accumulated in a layer to form a web shape, and the fabric weight is is 150 to 500 g/m ² , and the nonwoven sheet 2 is formed on both surfaces through the thermoplastic fibers.
is thermally welded to the fibers of This thermal welding is performed at the same time as discontinuous embossing 4 is applied to the napkin 1 under heating. In the above description, the appropriate amount of thermoplastic fibers means that the desired water absorbency of the core layer 3 is not inhibited, and that the nonwoven sheet 2 on both surfaces and the core layer 3 do not cause delamination during handling or use of the napkin 1. It means the amount necessary for the thermal welding to occur to the extent that the core layer 2 is not
It is 20% by weight. If the basis weight is less than 150g/ ^m2 , sufficient water absorption capacity, bulkiness, and elasticity cannot be obtained, and the
500g/m ² or more is not necessary.

The napkin 1 is provided with a break line 5 for cutting if necessary. This breaking line 5 is composed of connecting portions 5a and separating portions 5b that are alternately located. The napkin 1 is composed of a double-sided nonwoven sheet 2 with different tear strengths and a web-like core layer 3, and is relatively thick, so it is not always easy and clean to cut it to a desired size. Therefore, in order to make it possible, it is necessary to connect the connecting part 5a and separating part 5b
and preferably have the required length. In a preferred embodiment, the length L ₁ of the connecting portion 5a and the length L ₂ of the separating portion 5b are 1:5 to 20, and L ₁ is 0.1.
~10mm.

Napkin 1 also contains an appropriate amount of cleaning liquid, such as an appropriate amount of water, and a trace amount of bersalkonium chloride.
It is impregnated with a preservative such as chlorhexidine gluconate and, if necessary, a mixture of deodorants and fragrances. The preferred amount of impregnation is as follows:
5 to 15 c.c. per napkin surface area of 100 to 300 cm ² .

Such a napkin 1 is sealed with a packaging material 6 made of an air-impermeable film, as shown in FIG. 5, which is a partially cut away perspective view of the packaging material. As this packaging material 6, for example, one obtained by coating a polyethylene film with aluminum is suitably used, and with the napkin 1 interposed between the films, the periphery of the film is heated as shown in the figure. By welding, the napkin 1 can be packaged in a sealed state.

According to the present invention configured as described above, sufficient surface strength is maintained as a napkin for cleaning the skin, so even if the skin to be cleaned is rubbed, the fibers of the nonwoven sheet on both sides will not separate. It does not leave any residue on the skin, and because it combines a double-sided nonwoven sheet mainly made of hydrophilic fibers with a web-like core layer, it absorbs and retains the desired cleaning liquid, and has bulkiness and elasticity. As a result, it is easy to clean, has a cleaning effect, and has an extremely good feel.The nonwoven sheet on both sides is embossed, which further improves its bulk and cleaning effect. do.

Furthermore, since the nonwoven sheets on both surfaces and the core layer are maintained in a laminated state by heat welding of the thermoplastic fibers of the core layer, the layers will not peel off unnecessarily during handling and use of the napkin. Moreover, since the heat welding is done by the thermoplastic fibers of the core layer interposed between the nonwoven sheets on both surfaces, the surface of the napkin is partially hardened by the heat welding, reducing the feel. There's nothing to do.

Furthermore, since the napkin is provided with break lines at appropriate positions, even if the napkin is relatively thick, the napkin can be easily and neatly cut into an appropriate size as needed. Can be done.

Therefore, according to the present invention, all the drawbacks of conventional sanitary wet napkins can be overcome, and it can be said that it has effects that cannot be obtained from such sanitary napkins, and is extremely useful in practical use.

[Brief explanation of the drawing]

The drawings show embodiments of the napkin according to the present invention. Fig. 1 is a schematic plan view of the napkin, Fig. 2 is a partially enlarged plan view of the surface of the napkin, Fig. 3 is an enlarged sectional view taken along line XX in Fig. 2, and Fig. 4 is a schematic plan view of the napkin. FIG. 5 is a partially enlarged plan view taken along the breaking line, and FIG. 5 is a broken perspective view of the napkin packaged with the packaging material. 1...Napkin, 2...Surface nonwoven sheet, 3...
...Core layer, 4... Emboss, 5... Break line, 5a...
... Connection part, 5b... Separation part, 6... Packaging material.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a sanitary wet napkin impregnated with a cleaning liquid and sealed with an impermeable packaging material,
The napkin is mainly made of hydrophilic fibers.
35 g/m ² of water-permeable double-sided nonwoven sheet, and 150 to 500 g/m ² of hydrophilic fibers mixed with an appropriate amount of thermoplastic fibers interposed between the double-sided nonwoven sheet.
The napkin is constructed of a web-like water absorbent core layer, and the napkin is provided with discontinuous embossing, and the fibers of the nonwoven sheet on both surfaces and the core layer are heated through the thermoplastic fibers. A sanitary wet napkin whose laminated state is maintained by welding, and which is provided with a break line for cutting the napkin into an appropriate width. (2) The break line provided on the napkin is configured by alternately positioning connecting parts and separating parts,
A sanitary wet napkin characterized in that the length L ₁ of the connecting portion and the length L ₂ of the separating portion are 1:5 to 20, and L ₁ is 0.1 to 10 mm.