JPH0643162Y2 - Sheet with soap - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention eliminates the need to prepare soap when cleaning the body or objects, and can be used independently for disposable hand towels, towels, wiping cloths, etc. Regarding soap-containing sheets.

[Prior Art] Conventionally, a paper soap composed of a water-soluble binder and soap has been used as a sheet-shaped soap, but this is a so-called disposable soap in which the whole is dissolved when immersed in water. Was only sized for one use.

On the other hand, Japanese Utility Model Laid-Open No. 59-4757 proposes a nonwoven fabric with soap in which a nonwoven fabric is impregnated with a liquid cleaning liquid and the water content in the soap liquid composition is dried. Not only was the soap component melted out, but it was convenient that the non-woven fabric could be used as a substitute for towels, etc. to scrub off dirt during washing, and to wipe off excess water after washing. However, in this conventional non-woven fabric with soap, the soap component is adhered to the surface of the fibers constituting the non-woven fabric by impregnating the liquid soap and then drying it to remove water, so that the soap component is in the form of a film or block. Since it is present in the non-woven fabric, it is difficult to control its cleaning characteristics such as foaming property, foam stability, and foam discharging property, and the soap component has a slow dissolution rate. That is, it is difficult to set the cleaning characteristics according to the application with this non-woven fabric with soap.For example, when used for disposable hand towels and simple hand washing, the soap component is likely to remain in the non-woven fabric, so it is not suitable for use as a substitute for towels, etc. There has been a problem that washing must be done carefully, and on the other hand, if the amount of soap is reduced in order to improve foaming, sufficient detergency cannot be obtained. Further, this non-woven fabric with soap has a drawback that it takes a lot of steps and time because it is made by impregnating the once-formed non-woven fabric with liquid soap and then drying it, resulting in poor productivity.

[Object of the Invention] The present invention has been made to solve the above-mentioned drawbacks of the prior art, and it is an object of the present invention to provide a soap-containing sheet with easy control of cleaning characteristics and high productivity.

[Structure of the Invention] The present invention will be described below with reference to the drawings. The present invention provides a sheet mainly composed of pulp fibers (2) bonded by a powdery or fibrous heat-fusible resin (3). A soap-containing sheet (1), which holds powdered soap (4), and has a support material (5) on one surface of the sheet and a surface material (6) on the other surface. That is, the soap-containing sheet of the present invention is obtained by a simple manufacturing method in which a heat-fusible resin, pulp fiber, and powder soap are mixed into a sheet, which is heat-treated, and has a large surface area and a high dissolution rate. The cleaning characteristics can be freely controlled by using soap and selecting the particle size and amount.

In the present invention, the pulp fiber (2) is mainly used for the sheet that holds the powder soap, and is used for enhancing the water retention ability and improving the wiping property after washing, so that at least 40 kg / m ² is contained in the sheet. Better to have, preferably 5
It is preferable to use 0 to 300 g / m ² of pulp fiber. Fibers other than pulp fibers may be mixed in the sheet in order to enhance the strength of the sheet and the water diffusivity.

As the heat-fusible resin (3), a resin having a melting point of 80 to 180 ° C. such as polyethylene resin, polyamide resin, polyester resin, ethylene-vinyl acetate resin is used in the form of powder or fiber. The adhesive resin (3) is mixed with the above pulp fibers (2) and then fused by heat treatment to bond the pulp fibers, and has sufficient strength to be used as a substitute for a towel or towel when washing the sheet. Works to have. Therefore, in order to mix it uniformly with the pulp fiber, the heat-fusible resin (3) is 40 to 40 when used in powder form.
It is desirable to use a powder that passes through 150 mesh, and in the case of using a fibrous form, a pulp fibrous form is desirable.
Further, in order to obtain sufficient strength, it is better that the sheet contains at least 5 g / m ² of the heat-fusible resin (3),
If it is contained too much, the water absorption capacity will be reduced and the resulting sheet will also be stiff, so it is better not to exceed 30 g / m ² .

On the other hand, the powdered soap (4) used in the present invention includes nonionic surfactants such as glycerin fatty acid ester, polyethylene glycol fatty acid ester, and polyoxyethylene lanolin derivative, anionic interfaces such as alkylsulfate and α-olefinsulfonate. Powders of an active agent, a cationic surfactant such as alkyldimethylbenzylammonium salt, a higher alcohol such as stearyl alcohol and behenyl alcohol, and an amphoteric surfactant which pass through 30 to 200 mesh are preferably used. The larger the surface area, the faster the dissolution rate of powdered soap (4), so the smaller the particle size, the better. Especially when used for disposable hand towels and simple hand washing, it quickly dissolves and foams, and the soap component is removed from the sheet. It is desirable to use powder soap with a small particle size, since it is desirable that it can be used as a towel and towel. However, in the case of a wiping cloth or body wash, it is desirable to dissolve and foam immediately, but since the soap component needs to remain in the sheet for a while, a small particle size that enhances the initial foaming property is obtained. It is preferable to use a combination of powdered soap and powdered soap having a large particle size that maintains detergency. The amount of the powdered soap (4) retained in the sheet is preferably 1 to 50 g / m ² , and if it is less than this, sufficient detergency cannot be obtained. It is better to change the amount of this powdered soap according to the application, for example, when used for disposable hand towels, the amount of powdered soap is 1 to 15 g so that the soap components are quickly removed from the sheet after contact with water. / m ² is desirable, and when using it as a wiping cloth, the amount of powdered soap should be 5 to maintain the cleaning power to some extent.
30g / m ² is desirable. In the present invention, the powdery soap (4) can be stably held in the sheet, and the powdery soap (4) can be appropriately combined by selecting the type, particle size, shape, amount, etc. as described above. , Foaming,
Since the washing characteristics such as foam stability and foam discharge can be freely controlled, a soap-containing sheet can be obtained according to the application.

An example of the method for producing the soap-containing sheet (1) of the present invention will be described below. On the support material (5) such as crepe paper, tissue paper, and non-woven fabric, the air-laid method, which is one of the non-woven fabric forming methods, is used. , A mixture of pulp fiber (2) and powdery or fibrous heat-fusible resin (3) and powdery soap (4) is placed on a sheet, and crepe paper, tissue paper, non-woven fabric, etc. After laminating the surface material (6), the concavo-convex portion (7) is formed by heat treatment using an embossing roll, etc., and the heat-fusible resin (3) is melted to bond the pulp fibers to the soap. Form the sheet (1). According to this manufacturing method, the powder soap can be easily held in the process of forming the sheet, and the powder soap can be stably present in the sheet without spilling from the sheet. In the above soap-containing sheet, the support material (5)
And because it uses the surface material (6), it has excellent surface resistance,
Even if it is rubbed during cleaning, the surface is not peeled off or fluffed, and since the uneven portion (7) is formed, dirt can be easily removed. The support sheet (5), the surface material (6), and the uneven portion (7) may be provided on the soap-containing sheet as desired, and these may be omitted. It goes without saying that it may be manufactured by another manufacturing method.

Example 1 Powdered ethylene-vinyl acetate resin passing through 200 g / m ² of crushed pulp fiber and 80 mesh by air-laying method on crepe paper of 18 g / m ² Fine powder passing through 20 g / m ² and 100 mesh Stearyl alcohol 5 g / m ² was evenly mixed and laminated in a sheet form, and then 18 g / m ² of crepe paper was further laminated thereon, followed by heat treatment with a heating embossing roll to obtain a soap-containing sheet. .

When the obtained sheet was soaked in water, it absorbed water to be softened, and the soap component instantly dissolved and foamed, and stains that were difficult to remove with ordinary soap could be scraped off with the uneven sheet. After washing, the soap component can be removed simply by washing with water, and if you squeeze the water to remove it, the sheet will be a highly water-retaining sheet made of pulp material, so the water can be easily wiped off and it can be used suitably for disposable hand towels, etc. It was

[Example 2] ^On a non-woven fabric of 30 g / m ² , 60 g of crushed pulp fiber as the first layer
With powdered polyethylene resin that passes through m ² and 40 mesh
The sheet layer consisting of a mixture of powdered α- sodium olefin sulfonate 10 g / m ² passing through the 30 to 200 mesh, powdered polyethylene passing through the pulverized pulp fibers 120 g / m ² and 40 mesh as the second layer Sheet layers made of a mixture with a resin of 8 g / m ² were sequentially laminated, 20 g / m ² of crepe paper was further laminated thereon, and heat-treated with a heating embossing roll to obtain a soap-containing sheet.

Since the obtained sheet was composed of powder soap having a relatively wide range of particle sizes, it was not only excellent in instantaneous foaming, but also maintained a foaming power and was suitable for washing dishes. Also, since the soap component is unevenly distributed on one side of this sheet, the amount of the soap component exuded to the other side is small, making it easy to hold by hand.
It was suitable for long-term cleaning.

[Example 3] Pulverized pulp fibers on a nonwoven fabric of 20 g / m ² by the air lay method
250g / m ² and synthetic pulp (Mitsui Petrochemical Industrial Co., Ltd. SW
Powdery polyoxyethylene monostearate 15 g / m ² and are uniformly mixed to laminated in sheet form, further non-woven fabric of 20 g / m ² on this pass through the P) 50g / m ² and 20 to 60 mesh After laminating, heat treatment was performed with a heating embossing roll to obtain a soap-containing sheet.

The obtained sheet was particularly excellent in abrasion resistance and had a lot of foaming, so it was suitable for a disposable washing cloth for car washing, a wiping cloth, etc. [Advantage of the Invention] The soaped sheet of the present invention has the above-mentioned constitution, so The effect is shown in.

When soaked in water, the sheet consisting mainly of pulp fibers absorbs water quickly and powder soap with a large surface area dissolves quickly, so foaming is extremely fast, the cleaning power is excellent, and the soap component remains in the sheet. Since it is not used, the sheet can be used as a substitute for towels and towels after washing.

The particle size, shape and amount of the powdered soap and the distribution within the sheet can be freely selected, whereby the cleaning characteristics such as foaming property, foam stability and foaming property can be set according to the application.

Since the pulp fibers are bonded with a fibrous or powdery heat-fusible resin, the sheet is firmly bonded while having a porous structure, which can hold powder soap stably and at the time of washing and washing. It has sufficient sheet strength and water retention capacity to be used later as a substitute for hand towels and towels.

Since the soap component can be retained at the time of forming the sheet, the production is simple and the productivity is good, and the dry production is possible, so that the powder soap can be used.

By using a surface material or a support material, a sheet having excellent wear resistance can be obtained, and the sheet can also be used for applications requiring surface resistance such as wiping cloth.

By forming the uneven portion on the sheet, the ability to remove dirt can be improved.

As described above, the soap-containing sheet of the present invention has an excellent effect and can be suitably used for disposable hand towels, disposable cleaning cloths, wiping cloths and the like.

[Brief description of drawings]

FIG. 1 is a plan view of the soap-containing sheet of the present invention, and FIG.
The figure is a partially enlarged model view of the cross section of the soap-containing sheet of the present invention.

Claims (1)

[Scope of utility model registration request] 1. A powder soap is held in a sheet mainly composed of pulp fibers bonded with a powdery or fibrous heat-fusible resin, and a support material is provided on one surface of the sheet, and a support material is provided on the other surface. A soap-containing sheet with a surface material on the surface.