JP2003020593A - Textile web products - Google Patents

Abstract

(57) [Summary] [Problem] To improve the touch and strength of dry or moisturizing tissue paper. Eliminates the sticky feeling of non-woven tissue and wet tissue and enhances the moisturizing feeling of skin protection. SOLUTION: A sugar alcohol such as xylitol, erythritol, mannitol, lactitol, sorbitol is added to a fiber web such as paper or non-woven fabric in an amount of 0.01-50.
In addition, a moisturizing component such as glycerin is contained as necessary.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hygiene fiber web product such as a dry type tissue paper or a tissue paper having a moisturizing property, a so-called wet tissue, and more particularly, to the touch, the moisturizing effect on the skin, the protective effect, etc. Excellent fiber web products.

[0002]

2. Description of the Related Art Conventionally, as a hygienic fiber web product, a) a general dry-type tissue paper which is made by making pulp fibers and creped on its surface b) a dry-type tissue paper containing various moisturizing ingredients. A moisturizing tissue paper that is contained to enhance the water retention and moisturizing properties and reduce skin irritation (hereinafter, this type of tissue paper is referred to as a moisturizing type tissue paper for convenience). There is known a wet tissue in which water, alcohol, a moisturizing component, a cleaning component and the like are impregnated.

[0003]

The various fiber web products described above have the following problems. a) Dry-type tissue paper is a high-bulk paper with many spaces in which fibers are rubbed by creping. For this reason, while it is excellent in water absorption and water retention, it is inferior in touch to the skin because it is composed of pulp fibers and has a small water content, and it may cause irritation to the skin if it is used frequently. b) Moisturizing tissue paper has a softness due to the plasticization of the pulp by the moisture content,
Excellent smoothness and softness. On the other hand, since it has a lot of water, the strength of the paper tends to be weak, and if it is rubbed or wiped hard, it will break.
Not suitable for these applications. c) Wet tissue gives a refreshing feeling when used, but excessive moisturizing and cleaning components may remain on the dry skin after use and become sticky.

The present invention has been made in order to solve various problems of the above-mentioned conventional fiber web products, has excellent touch and has sufficient strength for practical use, and has a protective and moisturizing effect on the skin. To provide a high fiber web product.

[0005]

In order to solve the above problems, the present invention is to incorporate a sugar alcohol into a fibrous web composed of a base paper for sanitary paper or a non-woven fabric. Here, the fibrous web includes paper (including wood fibers (coniferous and hardwood), non-wood plant fibers (such as hemp, bast fibers, cotton, kenaf) and rayon fibers), or non-woven fabric (wood pulp fibers, natural fibers). Any of fibers (cotton, wool, silk etc.), semi-synthetic fibers (rayon etc.), synthetic fibers (nylon, polyethylene, polyester, polypropylene etc.) may be used.

When the fibrous web is paper, the base paper for sanitary paper is impregnated with sugar alcohol or an aqueous solution thereof and, if necessary, with a moisturizing component such as polyhydric alcohol to dry or moisturize tissue paper. Can be obtained. When the fibrous web is a non-woven fabric, a non-woven base fabric is impregnated with a sugar alcohol or an aqueous solution thereof and, if necessary, with the moisturizing component, a wet tissue, a non-woven tissue or the like can be obtained.

Here, as the moisturizing component used in combination with sugar alcohol as required, glycerin, diglycerin, polyglycerin, polyethylene glycol having an average molecular weight of 200 or more and less than 1000, propylene glycol,
Polyhydric alcohols such as 1,3-butylene glycol, ethylene glycol, and diethylene glycol, fructose, glucose, oligosaccharides, trehalose, glycine betaine, pyrrolidone carboxylic acid, pyrrolidone carboxylate, lactic acid,
Examples include sodium lactate.

The sugar alcohol contained in the fibrous web may be at least one of xylitol, erythritol, mannitol, lactitol, sorbitol and the like. By blending these sugar alcohols in a specified amount, the smoothness, suppleness, tensile strength, and protective moisturizing feeling to the skin required for sanitary fiber web products such as dry type or moisturizing type tissue paper or wet tissue It is possible to improve non-stickiness and the like. In particular, when xylitol is blended with tissue paper, it is possible to obtain a product having good touch and less reduction in strength.

The content of sugar alcohol in the fibrous web is preferably 0.01 to 50% by weight based on the fibrous web in the case of dry type tissue paper. If it is less than 0.01% by weight with respect to the fibrous web, there is no effect of improving the touch, and if it is 50% by weight or more, the effect is saturated. Therefore, if importance is attached to practicality such as touch and skin protection effect, it is 0.1 per fiber web.
It is more preferable to set the content to 30% by weight.

Also in the case of moisturizing tissue paper,
From the same viewpoint as the dry type tissue paper, the sugar alcohol is preferably 0.01 to 50% by weight, more preferably 0.1 to 30% by weight, based on the fiber web. Also,
Polyhydric alcohol as a moisturizing ingredient (eg glycerin)
When used in combination with, the sugar alcohol content is preferably 0.1 parts by weight or more per 1 part by weight of the polyhydric alcohol.
If the sugar alcohol content is less than 0.1 part by weight, the effect of improving the smoothness cannot be sufficiently obtained and the softness to the touch becomes insufficient.

In the case of non-woven tissue as well, as with tissue paper, the sugar alcohol is 0.01 per fiber web.
-50% by weight is preferable, and 0.1-30% by weight is more preferable. When used in combination with a polyhydric alcohol (eg, glycerin) as a moisturizing component, the sugar alcohol is used in an amount of 0.1 part by weight or more per 1 part by weight of the polyhydric alcohol, thereby improving smoothness, and The effect of reducing stickiness becomes remarkable.

Also in the case of wet tissue, the sugar alcohol content is preferably 0.01 to 50% by weight based on the fibrous web.
0.1 to 30% by weight is more preferable. When the sugar alcohol content is less than 0.01% by weight, the skin-protecting and moisturizing effect is lost, and when it is 50% by weight or more, the effect is saturated. In addition,
When used in combination with a polyhydric alcohol such as glycerin as a moisturizing component, the sugar alcohol content is preferably 1 part by weight or more per 1 part by weight of the polyhydric alcohol. If the amount is less than 1 part by weight, the effect of reducing stickiness decreases. Further, when the sugar alcohol is used in combination with the surfactant in the wet tissue, the amount is preferably 1 part by weight or more per 1 part by weight of the surfactant. If the amount is less than 1 part by weight, the effect of reducing stickiness decreases.

Further, the sugar alcohol and the moisturizing component may be used in combination of two or more kinds. Further, in the present invention, appropriate amounts of silicones, fatty acids, and oils may be used in combination in order to further improve the tactile sensation and skin protection and moisturizing effect.

In the present invention, the following method is used to incorporate the sugar alcohol into the fibrous web. First, when paper is used as the fibrous web and a tissue paper is produced, a sugar alcohol (and a moisturizing component, etc., if necessary) is sprayed in a wet state after the web is formed during papermaking of the fibrous web. After impregnating with the treatment liquid, or after making a fibrous web into paper and drying it, the treatment liquid is impregnated by spraying or printing. When a non-woven fabric is used as the fibrous web and a non-woven tissue is produced, the treatment liquid is impregnated by a spraying method or a printing method.

When paper is used as the fibrous web and the treatment liquid is impregnated after drying the fibrous web, and when a nonwoven fabric is used as the fibrous web and a moisturizing component is added to the treatment liquid, the treatment liquid By setting the amount of water to the same level as the amount of water absorbed by the moisturizing component from the environment, the drying step after the treatment can be simplified.

When a non-woven fabric is used as the fibrous web and a wet tissue is produced, the non-woven base fabric may be immersed in the treatment liquid to impregnate it.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. 1) First Embodiment This embodiment is a case where the present invention is applied to dry type and moisturizing type tissue papers. NB
KP (softwood kraft bleached pulp) 80%, LBKP
(Hardwood kraft method bleached pulp) 20% blended pulp is beaten to a freeness of 630 to 640 ml (CSF),
A base paper for sanitary paper having a basis weight of 14.0 g / m ² and a crepe rate of 18% was made into a paper, and the base paper was processed into a tissue paper shape (two sheets stacked, length 200 mm, width 225 mm).

Next, various components shown in Table 1 (sugar alcohol and glycerin) were each dissolved and mixed in water to prepare a treatment liquid, which was impregnated on both sides of the two base papers by hand spray. . Further, the base paper impregnated with this treatment liquid was allowed to stand at a humidity of 65 ± 10% and a temperature of 20 ± 5 ° C. for 24 hours or more to dry excess water, and each sample (Examples 1 to 10, Comparative Example 1, 2) was prepared and various measurements (sensory test and physical test) described later were performed.

Here, Examples 1 to 5 are examples in which normal dry type tissue paper is impregnated with a treatment liquid containing sugar alcohol, and Examples 6 to 10 are dry type tissue paper in which sugar alcohol and a moisturizing component are used. It is an example in which the treatment liquid containing glycerin is impregnated (in other words, a moisturizing tissue paper is impregnated with the treatment liquid containing sugar alcohol). Further, Comparative Example 1 is an example in which dry type tissue paper is impregnated only with water, and Comparative Example 2 is an example in which dry type tissue paper is impregnated with an aqueous solution of glycerin as a moisturizing component (in other words, moisturizing type tissue. This is an example in which paper is impregnated with water. Note that the numbers in Table 1 are the spray-treated weight% of each component per base paper.

[0020]

[Table 1]

2) Second Embodiment In this embodiment, the present invention is applied to a nonwoven fabric. A dry pulp nonwoven fabric with a basis weight of 40 g / m ² (“Kinocloth” manufactured by Oji Kinocloth Co., Ltd.) 200 m in length
It was cut into m and 225 mm in width. Next, various components shown in Table 2 were dissolved and mixed in water to obtain a treatment liquid (the components and concentrations of each treatment liquid are the same as those in Table 1, and only the numbers of Examples and Comparative Examples are shown). Different) and were impregnated on both sides of the non-woven fabric using a hand sprayer. Table 2
The numbers in the figure are the spray treatment weight% of each component per non-woven fabric.
Is. Further, each sample (Examples 11 to 20 and Comparative examples 3 and 4) after being adjusted in the same manner as in the first embodiment was subjected to various measurements described below.

[0022]

[Table 2]

3) Third Embodiment This embodiment is a case where the present invention is applied to a wet tissue. Each component shown in Table 3 was dissolved and mixed in water to prepare a treatment liquid, and the non-woven fabric used in the second embodiment was dipped in the treatment liquid to each sample (Examples 21 to 21).
No. 27, Comparative Examples 5 to 7) were prepared, and various measurements described below were performed on these samples. The numbers in Table 3 are the weight percentages of each component in the treatment liquid, and the impregnated amount of each treatment liquid is 300 wt% per nonwoven fabric.

[0024]

[Table 3]

The measurement items and measurement methods for Examples 1-27 and Comparative Examples 1-7 are as follows. A. Sensory test 1) Smoothness Each sample was touched by hand, and its tactile sensation was evaluated.・ Very smooth: 3 points ・ Slightly smooth: 2 points ・ No smoothness: 1 point, totaled by 10 panelists, and expressed as follows (the same applies to the following measurement items) Is). -"26-30 points": ○-"16-25 points": △-"10-15 points": ×

2) suppleness Each sample was touched by hand, and the touch feeling was evaluated as follows. ・ It is very supple: 3 points ・ Somewhat supple: 2 points ・ No flexibility: 1 point

3) Non-stickiness a) In the case of non-woven fabric (Table 5) Each sample was touched by hand, and its tactile sensation was evaluated. b) In the case of wet tissue (Table 6) The skin was wiped with each sample, and the dryness of the skin was evaluated as follows.・ No stickiness: 3 points ・ Slight stickiness: 2 points ・ Stickness: 1 point

4) Protection of skin Moisture retention a) In the case of non-woven fabric (Table 5) After washing the hands with tap water, the water was wiped off with each sample, and the smoothness of the hand skin after the wiping was evaluated. b) In the case of wet tissue (Table 6) The skin was wiped with each sample, and the smoothness of the skin after drying was evaluated as follows.・ Smoothness of skin: 3 points ・ Smoothness of skin is slightly felt: 2 points ・ Smoothness of skin is not felt: 1 point

B. Physical Test 1) Tensile Strength According to the tensile strength test of tissue paper specified in JIS S-3104, the strength in the longitudinal direction of the paper when dried was measured. The test was performed 10 times, and the average value was taken.

The results of the above-mentioned tests are shown in Tables 4, 5 and 6.
Shown in. Here, Table 4 shows test results for Examples 1 to 10 and Comparative Examples 1 and 2 in Table 1, and Table 5 shows Examples 11 to 11 in Table 2.
20 and the test results for Comparative Examples 3 and 4, and Table 6 shows the test results for Examples 21 to 27 and Comparative Examples 5 to 7 of Table 3.

[0031]

[Table 4]

[0032]

[Table 5]

[0033]

[Table 6]

From Table 4, Examples 1 to 10 are superior to Comparative Example 1 in smoothness and flexibility, and are superior to Comparative Example 2 in tensile strength. In general, Examples 1 to 10 have a moderate or higher evaluation of smoothness and suppleness, and practically sufficient values have been obtained for tensile strength. In particular, dry type tissue paper Example 1 and moisturizing type tissue paper Example 6 to
According to 10, it was possible to obtain a tissue paper having a high evaluation of smoothness and suppleness as well as excellent touch and a good tensile strength.

Further, according to Table 5, Examples 11 to 20 are superior in smoothness and skin protection and moisturizing feeling to Comparative Example 3,
Compared to Comparative Example 4, the non-stickiness is superior. The non-woven fabrics according to Examples 11 to 20 have been evaluated as moderate or higher in all of smoothness, non-greasiness, and skin protection and moisturizing feeling. Nonwoven fabrics 16-2
In the case of 0, the highest evaluation was obtained for each measurement item.

Further, as shown in Table 6, Examples 21 to 27 are superior to Comparative Examples 5 and 6 in protecting and moisturizing the skin, and are superior to Comparative Example 7 in non-stickiness. The wet tissues according to these Examples 21 to 27 have all been evaluated to a level of medium or higher in terms of non-greasiness and protective and moisturizing feeling of the skin, and in particular, Examples 21, 22, 26, and 27 measure each. The highest evaluation was obtained for each item.

The present invention is applicable to various sanitary fiber web products used in direct contact with the skin, in addition to the above-mentioned normal dry type tissue paper, moisturizing type tissue paper, non-woven fabric and wet tissue. Applicable.

[0038]

Industrial Applicability As described above, according to the present invention, it is possible to obtain a tissue paper in which the dryness or the moisturizing type tissue paper is improved in the texture and the strength of the tissue paper is less deteriorated. In addition, the non-woven fabric can be provided with a smooth feel without being dry. In particular, the non-woven fabric impregnated with a moisturizing component was apt to give a sticky feeling, but the non-woven fabric of the present invention and the wet tissue of the present invention have a good non-greasy feel and a protective moisturizing effect on the skin. A feeling can be realized.

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 4L033 AB07 AC07 AC11 AC15 BA12                 4L055 AA02 AA03 AC06 AG44 AG88                       AH29 AH50 AJ06 BE10 FA30                       GA26 GA29 GA39

Claims (6)

[Claims] 1. A fiber web product comprising a sugar alcohol contained in the fiber web. 2. The fibrous web product according to claim 1, wherein the fibrous web is impregnated with an aqueous solution of sugar alcohol. 3. The fiber web product according to claim 1 or 2, wherein the sugar alcohol is xylitol, erythritol,
Mannitol, lactitol, fibrous web product characterized in that it comprises one or more kinds of sorbitol. 4. The fiber web product according to claim 1, 2, or 3, wherein the fiber web further contains a moisturizing component. 5. The fibrous web product according to claim 4, wherein the moisturizing component is a polyhydric alcohol. 6. The fibrous web product according to claim 1, 2, 3, 4 or 5, wherein the fibrous web is paper or non-woven fabric.