KR101803518B1 - Wet tissue composition - Google Patents

Abstract

The present invention relates to a wet tissue composition which stably contains a large amount of liquid compared to a conventional wet tissue and have improved liquid immersion and liquid discharge amount capable of maintaining long-time moisture feeling by adjusting the discharge amount of the liquid during use, and specifically, to a wet tissue composition, in which the liquid containing a cationic polymer exhibiting hydrophilicity is impregnated on one or both sides of an anionic nonwoven fabric and the negative charge on the surface of the nonwoven fabric and the cationic polymer dispersed in the liquid form an electrostatic bond to improve moisture content using absorbency of the existing nonwoven fabric, so that a large amount of the liquid is stably retained for a long time and fresh feeling due to high moisture content is excellent during use.

Description

Wet tissue composition

The present invention relates to a wet tissue composition in which a large amount of liquid is stably contained as compared with a conventional wet tissue, and the amount of liquid discharged during use is controlled to maintain a long wet feeling, and the amount of discharged liquid is improved.

A wet tissue is composed of a nonwoven fabric and a liquid, and is manufactured by absorbing the liquid into the nonwoven fabric. Therefore, the wet tissue is widely used as a tissue, a towel, and a dishwasher due to the convenience of not having to wet the water separately. Specifically, the liquid can be released at the time of use, and it is easy to perform various kinds of cleaning, and it is used in many places, such as defecation treatment of infants, human body cleaning of hands and face, and cleaning of vehicles, furniture, appliances, kitchens and floors.

The most important point of the wet tissue is that the amount of the liquid absorbed in the nonwoven fabric and the liquid remain stable. In the case of wet wipes for human body, a large amount of liquids may give rise to a cleaning effect and a feeling of use. Particularly, in the case of cleaning wipes for object washing, the amount of liquid to be absorbed and the degree to which the liquid is discharged are closely related to the use time . That is, in the cleaning tissue for floor, as the amount of liquid absorbed stably is increased, the amount of liquid discharged during use can be appropriately adjusted to clean a large area. On the other hand, if the amount of the liquid is small and the drainage can not be controlled, the wet tissue is easily dried during use, and it is troublesome to replace several sheets.

In this regard, a method of injecting a large amount of liquid into the nonwoven fabric may be considered, but when the amount of the liquid alone is increased, a problem occurs in the process of circulation and use due to a phenomenon that liquids flow out from the nonwoven fabric when the wet tissue is used . Therefore, a technique for stably absorbing a large amount of liquid is required.

In order to solve the above problems, it is an object of the present invention to provide a wet tissue composition in which a liquid is stably contained in a nonwoven fabric, and the discharge amount of the liquid is adjusted to feel fresh feeling and moisture feeling during use,

To achieve the above object, an aspect of the present invention relates to an anionic nonwoven fabric; Wherein the anionic nonwoven fabric comprises a liquid comprising a cationic polymer; The present invention also relates to a wet tissue composition comprising the same.

The wettable composition of the present invention can be obtained by impregnating a cross-linked or an aqueous solution containing a cationic polymer exhibiting hydrophilicity on the cross-section or both surfaces of an anionic nonwoven fabric to form a negative charge on the surface of the nonwoven fabric and the cationic polymer dispersed in the liquid to form electrostatic bonds, To thereby improve the moisture content and to retain a large amount of the liquid stably for a long period of time. In particular, wet wipes for floor cleaning give a cleaning durability that allows more area to be wiped.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a graph showing the amount of liquid retention according to the compression of a wet tissue composition produced according to an embodiment of the present invention. FIG.

The present invention relates to an anionic nonwoven fabric; Wherein the anionic nonwoven fabric comprises a liquid comprising a cationic polymer; The present invention also relates to a wet tissue composition comprising the same.

The wet tissue composition of the present invention can form a polymer layer by bonding the anionic nonwoven fabric and the cationic polymer. The polymer layer can be manufactured by stably supporting the liquid absorbed in the nonwoven fabric and can improve the stability of distribution and normal storage. In addition, the polymer layer can provide a feeling of freshness in a human body product, The area can be cleaned. The polymer layer is applied to a nonwoven fabric and adsorbed thereon, and may be present on one side or both sides of the nonwoven fabric.

Here, applying and fixing the liquid to the nonwoven fabric means that the liquid is absorbed into the nonwoven fabric so that the cationic polymer binds with the nonwoven fabric to form a layer.

The wet tissue composition of the present invention may further comprise an anionic nonwoven fabric; And a liquid comprising a cationic polymer; . ≪ / RTI >

When the liquid is contained in the anionic nonwoven fabric, it can act to support the liquid absorbed by the electrostatic bonding with the cationic polymer exhibiting hydrophilicity.

The anionic nonwoven fabric may be a natural fiber or a synthetic fiber and is preferably made of cotton, wood, bamboo, hemp, wool, pulp, rayon, polyester, acetate, acrylic, polyethylene, polypropylene, polyurethane, Terephthalate, and more preferably may be a mixed nonwoven fabric of rayon and polyethylene terephthalate.

In the present invention, the cationic polymer may be represented by the following formula (1).

≪ Formula 1 >

(Wherein X ^- is at least one selected from the group consisting of Cl ^- , Br ^- and CH ₃ SO ₄ ^- , n is an integer of 80 to 99, and m is an integer of 1 to 20)

The formula 1 is a structural formula showing a cellulose-based and starch-based cationic polymer. The substitution rate can be defined by the structural formula.

When n + m = 100 in the above formula (1), the cation exchange ratio is defined as m / 100. That is, when m is 5, the cation substitution rate is 0.05.

In the present invention, the cation substitution of the polymer may include a quaternary ammonium cation group in which the alkyl group is free of trimethylammonium cation groups represented by the general formulas (1) to (3), and the alkyl group (C8-18)

In the present invention, the cationic polymer may be at least one selected from polyethylene glycol-based, polyvinyl alcohol-based, cellulose-based and starch-based polymers, but is not limited thereto.

The cationic polymer may be a single or a mixture of a cellulose-based and starch-based cationic polymer composed of a glucose unit, more preferably a starch-based cationic polymer.

The cellulosic or starch-based polymer retains water together and can clean a wider area.

In the present invention, the cellulose-based polymer may have a structure represented by the following formula (2).

(2)

(Wherein X ^- is at least one selected from the group consisting of Cl ^- , Br ^- and CH ₃ SO ₄ ^- ).

In the present invention, the starch-based polymer may have a structure represented by the following formula (3).

(3)

(Wherein X ^- is at least one selected from the group consisting of Cl ^- , Br ^- and CH ₃ SO ₄ ^- ).

More specifically, the above-mentioned formulas 2 and 3 may be defined as a cationic polymer having a cellulosic and starch backbone, and may be dispersed in a liquid. The cellulose-based and starch-based polymers are highly hydrophilic and substituted by cationic groups, which adhere to the nonwoven fabric to improve the stability of the loaded liquid and control the release of the liquid.

The cellulose system generally has a feature that the viscosity of the liquid can be increased even when a small amount is applied at a level of 0.1% by weight and the water content of the liquid is further stably increased.

The starch-based cationic polymer has a feeling similar to pure water, while keeping the water content of the liquid stably and controlling the discharge without the slippery property of the liquid.

In the present invention, the liquid material may include a cationic polymer and water.

The cationic polymer may be contained in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the liquid material. If the content of the cationic polymer is less than 0.01 part by weight, the cationic polymer may not contain a large amount of water due to low water- It is difficult to apply the composition as a wet tissue composition.

The liquid may include at least one selected from surfactants, preservatives, antibacterial agents, oils, fragrances and functional extracts, but is not limited thereto.

The present invention can provide a wet tissue made of the wet tissue composition and a wet tissue pack in which a plurality of the wet tissues are stacked and packed.

Hereinafter, the present invention will be described in detail with reference to examples. However, these examples are for illustrating the present invention specifically, and the scope of the present invention is not limited to these examples.

Item Rayon: PET
(5: 5) Rayon: PET
(6: 4) Rayon: PET
(8: 2) Rayon: PET
(10: 0) Measurement 1 (mV) -7.50 -12.90 -21.75 -21.56 Measurement 2 (mV) -8.55 -12.95 -20.87 -22.81 Average (mV) -8.03 -12.93 -21.31 -22.19

Table 1 shows the measurement of the surface charge of the fabric (nonwoven fabric), and the surface charge (zeta-potential) was measured according to the mixed ratio of Rayon and polyethylene terephthalate (PET) as a polyester.

Since the anionic nonwoven fabric of the present invention has an anionic surface charge as shown in Table 1, electrostatic bonding with the cationic polymer can occur.

The base material used for the wet tissue of the present invention is preferably a nonwoven fabric prepared by using at least one kind of fibers selected from the group consisting of natural fibers and synthetic fibers as described above by using melt blown, spun lace, thermal bonding or air through method Do.

Example  1 to 4: Wet tissue manufacturing

A general nonwoven fabric manufactured by a spun lace method of rayon 40% and polyethylene terephthalate (PET) 60% was used as a nonwoven fabric for the examples. The size of the nonwoven fabric used herein was 150 * 200 mm in length and 45 gms in weight.

The wet tissues of Examples 1 to 4 were prepared under the same conditions as in Table 2 below.

For comparison of the examples, the wetted wipes of Comparative Examples 1 to 5 were prepared from the non-cationized starch and the cellulose under the same conditions as shown in Table 3 below.

Furtherance Example 1 Example 2 Example 3 Example 4 Polymer Kinds 6060 6080 6080 PQ-10 content 0.1 0.1 0.5 0.1 antiseptic 0.3 0.3 0.3 0.3 Spices and others 0.1 0.1 0.1 0.1 water Suitable amount Suitable amount Suitable amount Suitable amount Sum 100 100 100 100

6060: Sunkasta 6060 ^R , Samyang Corp. (starch based cationic polymer, substitution ratio 0.04)

6080: Sunkastar 6080 ^R , Samyang Corp. (starch based cationic polymer, substitution ratio 0.08)

PQ-10: Miconium PQ10-J400 ^R , Miwon Company (Cellulose-based cationic polymer, substitution ratio 0.06 ~ 0.08)

Furtherance Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5
Polymer
Kinds
-
Luxurious starch
Luxurious starch Hydroxyethyl
cellulose
Zenam Force content - 0.1 0.5 0.1 0.1 antiseptic 0.3 0.3 0.3 0.3 0.3 Spices and others 0.1 0.1 0.1 0.1 0.1 water Suitable amount Suitable amount Suitable amount Suitable amount Suitable amount Sum 100 100 100 100 100

Zenam Force: Zenam Force ^R , Samyang Corp. (starch based amphoteric polymer)

[ Experimental Example  1] Liquid retention  evaluation

To evaluate the liquid (water) retention force of Examples 1 to 4 and Comparative Examples 1 to 5, the same pressure was applied to the wet tissue produced to dewater the liquid, and the remaining amount of the liquid was measured. At this time, the pressing condition was a rolling press at a pressure of 50 kg / cm and a speed of 50 mm / sec

The water content of the liquid for the compression test was 350% of the weight of the nonwoven fabric impregnated into the nonwoven fabric.

The results of evaluation of the liquid retentivity according to the compression bonding are shown in Fig.

Comparative Example 1 is a wet tissue containing only water to which no polymer is applied. The results of Comparative Examples 2, 4 and 5 including the non-cationized starch and cellulose in the comparative examples were observed at the same level as in Comparative Example 1. It was observed that only trace amount of liquid remnant increased in Comparative Example 3 in which the amount of starch used was increased to 0.5%.

On the other hand, Examples 1 to 4, in which starch-based and cellulose-based cationic polymers were incorporated, exhibited a high liquid retention amount as compared with Comparative Examples. Also, when the cationic group substitution ratio was higher than that of Example 1 and Example 2, the liquid retention amount tended to increase, and in Example 2 and Example 3, as the polymer content increased, Respectively.

[ Experimental Example  2] Actual use evaluation - Measurement of washing area

The following evaluation was carried out to measure the increase rate of the cleaning area by controlling the discharge amount of the liquid in the consumer use environment as the floor wiping wet tissue.

The liquid preparations of Examples 1 to 4 were mixed with 0.1 part by weight of red tar pigment to prepare a wet tissue.

The tiles of 30 * 30 cm in width and height were wiped off and evaluated, and the number of wiping tiles was measured.

Experiments were carried out by impregnating nonwoven fabrics with liquids of 200% of the weight of the nonwoven fabric.

Item Example 1 Example 2 Example 3 Example 4 Cleaning area (number) 8 9 10 8

Item Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Cleaning area (number) 7 7 7 7 7

Table 4 and Table 5 show the measurement results of the cleaning area.

In Examples 1 to 4, the cleaning area was increased as compared with Comparative Examples 1 to 5, and particularly, the higher the cation group substitution ratio and content, the more the tendency to increase.

[ Experimental Example  3] Customer Satisfaction Evaluation

A sample of 40 housewives who use floor cleaning wipes was selected from representative samples of the examples and the comparative examples to evaluate the feeling of use feeling of the wet tissues. The test period was 3 weeks. The overall satisfaction / slippery / stickiness / cleaning power / water content / area of use were evaluated based on the 5-point scale.

Item Example 2 Example 4 Comparative Example 1 Comparative Example 4 Overall satisfaction 4.1 3.9 3.4 3.5 Does not slip 4.0 3.4 3.9 3.4 Not sticky 3.9 3.5 3.9 3.3 Sufficient amount of water 4.0 3.9 3.3 3.5 Wide use area 3.9 3.8 3.2 3.4

[ Experimental Example  4] Liquid  Evaluation of Carrier Stability

The following experiments were conducted to evaluate the stability of the liquid support of Examples and Comparative Examples. The water content of the wet tissue used in the experiment was 350% of the weight of the nonwoven fabric impregnated in the nonwoven fabric.

10 wipes were prepared for each sample, 10 sheets were stacked, and the sealed container was put in a sealed container and allowed to stand at room temperature for 1 day. After one day, the container was tilted and the amount of the liquid discharged from the nonwoven fabric layer was visually observed. The evaluation results are described as excellent / good / poor.

Item Example 1 Example 2 Example 3 Example 4 Emission Level Good Great Great Good

Item Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Emission Level Inadequate Inadequate Inadequate Inadequate Inadequate

In the evaluation of the stability of liquid-immobilization, Examples 1 to 4 exhibit better liquid-immobilized stability than Comparative Examples 1 to 5 as shown in Tables 7 and 8.

Therefore, it can be confirmed that the wet tissue composition comprising the cationic polymer of the present invention has a stable and long-term storage of the liquid, and is excellent in a refreshing feeling upon use.

Claims (9)

Anionic nonwoven fabric; And
A liquid containing a cationic polymer; In the wet tissue composition,
Wherein the cationic polymer is a starch polymer having a structure represented by the following formula (3).

(3)

(Wherein X ^- is at least one selected from the group consisting of Cl ^- , Br ^- and CH ₃ SO ₄ ^- ).
delete delete delete delete The method according to claim 1,
Wherein the cationic polymer is contained in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the liquid material.
The method according to claim 6,
Wherein the liquid comprises at least one selected from the group consisting of a surfactant, a preservative, an antibacterial agent, an oil, a fragrance, and a functional extract.
The method according to claim 1,
Wherein the anionic nonwoven fabric is at least one selected from cotton, wood, bamboo, hemp, wool, pulp, rayon, polyester, acetate, acrylic, polyethylene, polypropylene, polyurethane, polyamide and polyethylene terephthalate Composition.
9. A wet tissue produced from the wet tissue composition of any one of claims 1 to 8.

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