JPH04146257A - Production of base material for wet swabbing cloth - Google Patents

Abstract

PURPOSE:To obtain a base material for wet swabbing cloths, excellent in water absorptivity and capable of withstanding severe use by laminating a nonwoven fabric containing a specific % or more of heat-fusible fiber to both surfaces of unsized water absorbing base paper, forming a three-layer structure and then carrying out heating embossing treatment. CONSTITUTION:Nonwoven fabrics containing at least >=30% heat-fusible fiber such as polyethylene or polypropylene are superposed on both surfaces of unsized water absorbing base paper in a sandwich form to form a three-layer structure. The resultant sandwich is then pressed with heated embossing rolls to heat-fuse the nonwoven fabrics on both the surfaces and simultaneously apply uneven processing to at least one surface thereof. Furthermore, the water absorbing base paper in the central part is impregnated with a chemical composed of a surfactant for removing fouling, alcohols for sterilization, diols for preventing evaporation, flavonols for deodorization or perfumes or mixtures thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for manufacturing a base material for a disposable wet rag suitable for wiping kitchen-related gas ranges, cupboards, etc.

<Objective of the present invention> An object of the present invention is to provide a base material for a wet rag that has good water absorption efficiency and is durable and can withstand severe use.

A further object of the present invention is to provide a method for manufacturing a base material for a wet rag that retains a wiping chemical inside, has good wiping efficiency, and can withstand severe use.

<Means for Solving the Problems> In other words, the present invention positions a nonwoven fabric containing at least 30% of heat-fusible fibers on both sides of a sizeless water-absorbing base paper, and embosses the fabric with a heated embossing roll from both sides. This is a method for producing a base material for a wet rag, in which the nonwoven fabrics on both sides are heat-sealed by applying pressure, and at least one surface thereof is processed to have an uneven shape.

In addition, the present invention places nonwoven fabrics containing at least 30% of heat-fusible fibers on both sides of a sizeless water-absorbing base paper, and heat-fuses the nonwoven fabrics on both sides by applying pressure with heated embossing rolls from both sides. This is a method for producing a base material for a wet rag, in which at least one surface of the base material is textured, and then the central water-absorbent base paper is impregnated with a chemical solution having a wiping function.

<Description of the present invention> Next, the present invention will be explained in detail.

<A> Structure The base material for wet rags of the present invention has a triple structure.

A sizeless paper 1 containing no sizing agent is placed in the center of the three layers.

This sizeless paper 1 does not contain a sizing agent, so it has high water absorption performance.

However, while it has high water absorption performance, it has the disadvantage of low durability.

For this reason, the friction during wiping tends to cause inconveniences such as breaking down into small pieces and scattering debris or adhering to the cleaning surface and making it dirty.

For this purpose, non-woven fabric layers 2a and 2 are provided on both sides of the sizeless paper 1.
Position b.

The nonwoven fabric used for the nonwoven fabric layers 2a and 2b is made of heat-fusible fibers such as polyethylene and polypropylene.
Use one containing 0% or more.

(Ex) Heat processing The three layers of material as described above are fed between embossing rolls 4.5 as shown in FIG.

This roll 4.5 is provided with six pressurized grains 6.

This pressurized grain 6 may be provided on both rolls 4.5, but
As shown in FIG. 2, pressurized grains 6 may be provided protrudingly on one of the rolls 4, and the surface of the other roll 5 may be formed with a smooth curved surface.

During this embossing process, for example, if the heat-fusible fibers are polyethylene fibers, the rolls are heated to about 130°C.

Then, the nonwoven fabric layers 2a and 2b touch each other only at the points pressurized by the pressure particles 6, and become integrated with the sizeless paper 1.

However, at positions that are not pressurized by the pressure particles 6, the nonwoven fabric layers 2a and 2b are not deformed by the pressure and remain as they are as surfaces with high water permeability.

In this way, the wet rag base material P is completed.

<C> Impregnation with a chemical solution The base material P for a wet rag, which has three integrated layers, can be impregnated with a chemical solution.

As the impregnating chemical solution, the following ones or a mixture thereof can be used.

For stain removal, suitable surfactant For sterilization: Alcohol evaporation inhibitor Nidiol deodorizing agent: Flavonols and fragrances These chemical solutions are not pressurized by pressurized particles 6.
Since it easily passes between the nonwoven fabric layers and percolates to the outside, a high wiping effect can be expected.

1. Effects of the present invention> As described above, the manufacturing method of the present invention uses sizeless paper with a high ability to hold a chemical solution in the center, and covers both sides with a highly durable nonwoven fabric. Therefore, the following effects can be expected.

(a) Since the external nonwoven fabric provides resistance during use, it is possible to obtain a base material for a wet rag that has high resistance to damage due to friction.

<Exposure> Sizeless paper with a high ability to hold chemical liquid and non-woven fabric are heat-sealed at the points of scattered pressurized particles to form a three-layer integrated structure.

Therefore, the chemical solution can be retained well in the sizeless paper.

<C> The nonwoven fabric is not deformed on any surface other than the fusion point.

Therefore, during the wiping operation, the impregnated leaf liquid inside the leaf leaches out easily, and a good wiping effect can be expected.

(2) Only the melting point was embossed under heating, so
The processing effect is stable and the three layers do not separate before or during use, giving it a high commercial value.

[Brief explanation of the drawing]

Fig. 1: Cross-sectional view of an example of a base material for wet wipes manufactured by the manufacturing method of the present invention Fig. 2: Explanatory diagram of the manufacturing process

Claims (2)

[Claims] (1) A nonwoven fabric containing at least 30% of heat-fusible fibers is placed on both sides of a sizeless water-absorbing base paper, and pressure is applied from both sides with heated embossing rolls to heat-fuse the nonwoven fabrics on both sides. , a method for manufacturing a base material for wet rags, which is performed by processing at least one surface of the base material into an uneven shape. (2) A nonwoven fabric containing at least 30% of heat-fusible fibers is placed on both sides of a sizeless water-absorbing base paper, and pressure is applied from both sides with heated embossing rolls to heat-fuse the nonwoven fabrics on both sides. A method for manufacturing a base material for wet rags, which comprises: processing at least one surface of the base material with unevenness, and then impregnating the central water-absorbing base paper with a chemical solution having a wiping function.