JP2001089984A - Etching agent of natural fiber material, method for carrying out etching and etched natural fiber material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an etching agent capable of providing an etched natural fiber material without using a dangerous material such as an amine or an alkali metal hydroxide as an etching agent, having watermark with extremely sharp pattern edge or having uneven pattern with extremely sharp pattern edge in a napped product, free from color change of dye in printing paste, forming a pattern having clear hue and excellent in design property and capable of extremely safely producing the edged natural fiber material excellent in design property and provide a method for edging the natural plant. SOLUTION: This material of natural fiber material comprises guanidine hydrochloride and an alkali metal salt of a weak acid or guanidine acetate. This natural fiber material is edged with the above edging agent.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exfoliating agent for a natural fiber material, a method of processing a natural fiber material, and a natural fiber material processed by a gas extraction.

[0002]

2. Description of the Related Art Conventionally, a fiber material formed by using a disinfectant on a fabric made of a composite fiber obtained by blending, blending, or knitting and weaving wool or silk with different kinds of fibers such as cotton, nylon, and polyester. The process of partially removing one of them and forming a watermark pattern is known as opal processing,
In this processing, the same color is not obtained between different kinds of fibers, the dye is discolored by the disinfectant, the printed pattern does not match the discolored pattern, and the cost is high.

[0003] In the wool removal processing, an amine or an alkali metal hydroxide is printed and adhered to a cloth made of wool and cotton, followed by heat treatment to embrittle the wool and remove the wool. There is also known a method of forming a watermark pattern. However, the method using an amine causes environmental harm due to the generation of foul odor and smoke during the heat treatment, and the method using an alkali metal hydroxide has a monotonous watermark pattern and lacks sharpness in the mold. Is a problem. Furthermore, when the printing paste contains a dye, and when dyeing the wool fiber of the printing portion, the dye is contained in the printing paste using a conventional amine, an alkali metal hydroxide or the like as a disinfectant. Is discolored, and a satisfactory hue cannot be obtained.

In addition, in the above-mentioned conventional method, it is necessary to pay particular attention to the use of amines and alkali metal hydroxides in the work to avoid danger, especially when using the pastes for discoloration. There is.

[0005]

According to the present invention, a natural fiber material which has been etched can be obtained without using a dangerous substance such as an amine or an alkali metal hydroxide as an etching agent. It has a very sharp openwork pattern on the edge of the mold or a very sharp uneven pattern on the brushed product, without discoloration of the dye in the printing paste, forming a pattern with a clear hue, and excellent design It is an object of the present invention to provide a disinfectant and a disinfecting method capable of extremely safely producing a natural fiber material processed by disintegration.

[0006]

Means for Solving the Problems As a result of intensive studies to solve the above problems, the present inventor has found that guanidine hydrochloride and a weak acid alkali metal salt or guanidine acetate are used as a disinfecting component. The present inventors have found that conventional problems can be eliminated, and completed the present invention based on this finding.

That is, the present invention relates to a natural fiber material containing guanidine hydrochloride and an alkali metal salt of a weak acid, or guanidine acetate, or guanidine hydrochloride and an alkali metal salt of a weak acid. A method for processing a natural fiber material using a disinfectant containing guanidine acetate, and a method for exfoliating using a disinfectant containing guanidine hydrochloride and an alkali metal salt of a weak acid or containing a guanidine acetate. To provide a natural fiber material.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The disinfectant of the present invention contains guanidine hydrochloride and an alkali metal salt of a weak acid or guanidine acetate as a disinfecting component. As the alkali metal salt of a weak acid, for example, sodium acetate, sodium carbonate, sodium bicarbonate, potassium acetate, potassium carbonate and potassium bicarbonate are preferable. The amount of the alkali metal salt of a weak acid to guanidine hydrochloride is preferably in a molar ratio of 1.0: 0.1 to 1.0: 2.0,
If the molar ratio of the alkali metal salt of the weak acid is less than 1.0: 0.1, the effect of the removal tends to be weak, and
When it is more than 2.0, the effect of removing the food is good, but it is difficult to prepare the printing paste. Examples of the form of the disinfectant include, for example, a mixture of guanidine hydrochloride and a weak acid alkali metal salt or guanidine acetate itself, an aqueous solution of guanidine hydrochloride and a weak acid alkali metal salt or a solution dissolved in a paste, or an aqueous solution of guanidine acetate. Alternatively, a paste dissolved in a paste or the like may be used, and a printing paste can be obtained by blending this disinfectant with the original paste. The amount of the guanidine hydrochloride contained in the printing paste may be appropriately selected depending on the type of the natural fiber material to be extracted and the target degree of the extraction, and is not particularly limited. The total amount of the acid and the alkali metal salt of a weak acid or the amount of guanidine acetate may be 0.5 to 50% by weight, preferably 1 to 40% by weight.

The disinfectant of the present invention has an enhanced disinfecting effect by incorporating a polyhydric alcohol, polyethylene glycol or a nonionic surfactant. For example, polyhydric alcohols such as ethylene glycol, propylene glycol, and glycerin, polyethylene glycol having a molecular weight of 100 to 6000, primary and secondary natural or synthetic alcohols, and polyhydric alcohols such as glycerin, pentaerythritol, sorbitol, and sucrose are used. Oxidized nonionic surfactants may be mentioned. Of these, polyethylene glycol is preferable, and particularly, molecular weight of 200 to 5 is preferable.
000 polyethylene glycol is preferred. The amount of the polyhydric alcohol, polyethylene glycol or nonionic surfactant incorporated in the disinfectant or in the printing paste is not problematic as long as the viscosity of the printing paste can withstand printing. But usually 1 to 20% by weight, preferably 3 to 1% by weight in the printing paste
It is 5% by weight, and when it is at this level, the change in viscosity of the printing paste is small, and a good discharge effect can be obtained.

The disinfectant of the present invention is usually prepared and used in the form of a printing paste mixed with the original paste. The base paste for preparing the printing paste is not particularly limited, and a base paste used for various kinds of ordinary printing pastes can be appropriately selected and used. For example, natural pastes such as starch, gum arabic, crystal gum, tamarind, sodium alginate, carboxymethyl cellulose soda, propoxycellulose, alginates, guar gum ethylene oxide adducts, ethyl cellulose, methyl cellulose, processed gums such as British gum , Polyacrylates, polyacrylic acid derivatives, polyvinyl acetate, acrylate-vinyl acetate copolymers, polyvinyl alcohol, polyvinyl butyral, polyurethane, polymaleic acid copolymer salts, nonionic surfactants and other synthetic pastes And various types of pastes such as synthetic resin emulsions, diatomaceous earth, and inorganic pastes such as silicate colloids, each alone or as a mixture of two or more, are used as pastes and added to water or an organic solvent to form a solution. Or a dispersion, with water Those with mucus emulsion of oil-based solvent, such as a mixture of the two parties, it is possible to use a stock paste that has been conventionally used.

[0011] In addition to the disinfectant of the present invention, an adsorbent, a discharge agent, a surfactant, a pigment,
Dyes, anti-reducing agents, sequestering agents, extenders, hygroscopic agents, penetrants, electrolytes, fats, fluorescent brighteners, preservatives, ultraviolet absorbers, antioxidants, etc. be able to. As the dye that can be blended, any reactive dye can be used. Particularly preferred is a dye that can withstand alkali, and a quinone-based or quinophthalone-based reactive dye is used.

The printing paste can be printed on the fabric by any conventional method, and it can be arbitrarily printed from partial printing of a pattern or the like to printing of almost the entire surface. . Further, the printing may be performed by partially overlapping another printing section. Next, after pre-drying as necessary, dry heat or wet heat treatment is performed. The method of performing these treatments is not particularly limited, and, for example, a method of performing baking using an oven or a dryer or a method of performing baking using a hot press machine can be adopted as a dry heat treatment method. As the wet heat treatment method, a method of performing steaming using an HT steamer or the like can be employed. The treatment conditions vary depending on the type of the natural fiber material to be treated, and cannot be said unconditionally. However, it is preferable to perform the treatment at a temperature of about 90 to 150 ° C. for about 30 seconds to about 60 minutes in any method. The effect can be obtained. Thereafter, if necessary, the processing material is subjected to post-processing such as water washing and soaping, and dried.

The natural fiber material which has been subjected to the etching process according to the present invention may be subjected to ordinary dyeing or printing after the etching process. It is also possible to impart a wide variety of advanced design effects by combining the pattern and hue in the extraction process with the pattern and hue in the further dyeing or printing process. As the natural fiber material used in the present invention,
Fabrics, knits, raised fabrics, non-woven fabrics, and the like made of natural polyamide fibers such as wool and silk, and composite fibers of these fibers and cotton, rayon, nylon, polyester, and the like are used.

[0014]

EXAMPLES The present invention will be described below in more detail with reference to examples, but the present invention is not limited to these examples. In the examples and comparative examples, “parts” represents “parts by weight”. Example 1 Nikka gum AL (sodium alginate, Nika Chemical Co., Ltd.)
Into 60 parts of an original paste consisting of 3 parts) and 57 parts of water, a solution prepared by dissolving 20 parts of guanidine hydrochloride (60% product) and 10 parts of sodium carbonate in 10 parts of water was added to prepare a printing paste. This printing paste was printed on a wool raising cloth (white cloth) in a pattern and dried. Then, an HT steamer (HT-3-550 type:
A steaming treatment was performed at 110 ° C. for 30 minutes using Tsujii Dyeing Machinery Co., Ltd., followed by washing with water and soaping. The adhesion rate of the printing paste to the fabric was 120% by weight on average.

The wool brushed cloth thus obtained had a three-dimensional pattern due to the fact that the printed portion had been etched. Example 2 Nikka gum AL (sodium alginate, Nika Chemical Co., Ltd.)
3 parts, polyethylene glycol (molecular weight = 400)
10 parts of water, 60 parts of original glue consisting of 47 parts of water, 10 parts of water, 20 parts of guanidine hydrochloride (60% product), 1 part of sodium carbonate
A printing paste was prepared by adding 0 parts of the paste. This printing paste was printed on a wool raising cloth (white cloth) in a pattern and dried. Next, a steaming treatment was performed at 110 ° C. for 30 minutes using an HT steamer (HT-3-550: manufactured by Tsujii Dyeing Machinery Co., Ltd.), followed by washing with water and drying through soaping. The average adhesion rate of the printing paste to the fabric is 1
It was 20% by weight.

The wool raising cloth thus obtained had a more deeply etched portion of the printed portion than that of Example 1, and exhibited a clearer three-dimensional pattern at the time of molding. Example 3 Polyethylene glycol of Example 2 (molecular weight = 400)
10 parts of polyethylene glycol (molecular weight = 100)
0) The procedure was the same as in Example 2, except that 10 parts were used.
A brushed cloth was obtained.

The wool brushed fabric thus obtained is the same as that of Example 2, and the printed portion is more deeply etched than that of Example 1 and exhibits a clearer three-dimensional pattern at the time of molding. Was. Example 4 Polyethylene glycol of Example 2 (molecular weight = 400)
The same treatment as in Example 2 was carried out except that 10 parts of glycerin was used instead of 10 parts, to obtain a fluffed raised cloth.

The wool-raised cloth thus obtained has a slightly weaker erosion effect than that of Example 2, but the printed part is eroded more deeply than that of Example 1 and a clearer shape at the time of molding is obtained. It had a three-dimensional pattern. Example 5 Polyethylene glycol of Example 2 (molecular weight = 400)
The same procedure as in Example 2 was carried out except that 10 parts of 10 parts of an adduct of 28 mol of ethylene oxide of stearyl alcohol was used to obtain a fluffed blanket.

The wool-raised cloth thus obtained has a slightly weaker erosion effect than that of Example 2, but the printed part is eroded more deeply than that of Example 1 and a clearer shape at the time of molding is obtained. It had a three-dimensional pattern. Example 6 6 parts of Nikka gum 3A (processed starch, manufactured by Nichika Chemical Co., Ltd.)
A printing paste was prepared by adding 20 parts of guanidine hydrochloride (60% product) and 10 parts of sodium carbonate dissolved in 10 parts of water to 60 parts of an original paste consisting of 54 parts of water. This printing paste was printed on a wool raising cloth (white cloth) in a pattern and dried. Next, a steaming treatment was performed at 110 ° C. for 30 minutes using an HT steamer (HT-3-550: manufactured by Tsujii Dyeing Machinery Co., Ltd.), followed by washing with water and drying through soaping. The adhesion rate of the printing paste to the fabric was 110% by weight on average.

The wool brushed fabric thus obtained was the same as in Example 1, and had a three-dimensional pattern due to the fact that the printed portion had been etched. Example 7 6 parts of Nikka gum 3A (processed starch, manufactured by Nichika Chemical Co., Ltd.)
A paste prepared by dissolving 20 parts of guanidine hydrochloride (60% product) and 10 parts of sodium carbonate in 10 parts of water is added to 60 parts of an original paste composed of 10 parts of polyethylene glycol (molecular weight = 400) and 44 parts of water. Was prepared. This printing paste was printed on a wool raising cloth (white cloth) in a pattern and dried. Next, a steaming treatment was performed at 110 ° C. for 30 minutes using an HT steamer (HT-3-550: manufactured by Tsujii Dyeing Machinery Co., Ltd.), followed by washing with water and drying through soaping. The adhesion rate of the printing paste to the fabric was 110% by weight on average.

The wool brushed fabric thus obtained is the same as that of Example 2, and the printed portion is more deeply etched than that of Example 1 and exhibits a clearer three-dimensional pattern when the mold is formed. Was. Example 8 10 parts of sodium carbonate of Example 2 was replaced with potassium carbonate 10
The same treatment as in Example 2 was carried out except that the part was replaced to obtain a brushed cloth which had been etched.

The wool-raised cloth thus obtained is the same as that in Example 2, and the printed part is more deeply etched than in Example 1, and exhibits a clearer three-dimensional pattern at the time of molding. Was. Example 9 6 parts of Nikka gum 3A (processed starch, manufactured by Nichika Chemical Co., Ltd.)
In 60 parts of an original paste consisting of 10 parts of polyethylene glycol (molecular weight = 400) and 44 parts of water, a solution prepared by dissolving 20 parts of guanidine hydrochloride (60% product) and 15 parts of sodium bicarbonate in 5 parts of water is added and printed. A paste was prepared. This printing paste was printed on a wool raising cloth (white cloth) in a pattern and dried. Next, a steaming treatment was performed at 110 ° C. for 30 minutes using an HT steamer (HT-3-550: manufactured by Tsujii Dyeing Machinery Co., Ltd.), followed by washing with water and drying through soaping. The adhesion rate of the printing paste to the fabric was 110% by weight on average.

The wool-raised cloth thus obtained is the same as that in Example 2, and the printed part is more deeply etched than in Example 1, and exhibits a clearer three-dimensional pattern at the time of molding. Was. Example 10 Except for replacing 15 parts of sodium bicarbonate of Example 9 with 15 parts of sodium acetate, the same treatment as in Example 9 was carried out to obtain a fluffed raised cloth.

The wool brushed fabric thus obtained is the same as that of Example 2, and the printed portion is more deeply etched as compared with Example 1, and exhibits a clearer three-dimensional pattern at the time of molding. Was. Example 11 6 parts of Nikka gum 3A (processed starch, manufactured by Nichika Chemical Co., Ltd.)
To 60 parts of an original paste consisting of 10 parts of polyethylene glycol (molecular weight = 400) and 44 parts of water, a solution prepared by dissolving 15 parts of guanidine acetate in 25 parts of water was added to prepare a printing paste.
This printing paste is printed in a pattern on a wool brushed cloth (white cloth),
Dried. Then, HT steamer (HT-3-550)
(Type: made by Tsujii Dyeing Machinery Co., Ltd.) and then steamed at 110 ° C. for 30 minutes, then washed with water, soaped and dried. The adhesion rate of the printing paste to the fabric was 120% by weight on average.

The wool-raised cloth thus obtained is the same as that of Example 2, and the printed portion is more deeply etched than that of Example 1, and exhibits a clearer three-dimensional pattern when the mold is formed. Was. Comparative Example 1 In Example 11, 4 parts were replaced with 15 parts of guanidine acetate.
Extrusion was performed in the same manner as in Example 11 except that 15 parts of an 8% aqueous sodium hydroxide solution was used.

In this processing, a wool raising cloth which had been subjected to the etching process was obtained, but the edging of the etched portion was insufficient. When the amount of sodium hydroxide added was increased, the edging effect was increased, but the viscosity of the paste could not be maintained. Comparative Example 2 Example 11 was repeated except that 15 parts of triethanolamine was used instead of 15 parts of guanidine acetate.
In the same manner as in the above, the material was subjected to an etching process.

In this process, a wool raising cloth subjected to the etching process was obtained, but the edging at the extracted region was insufficient. In addition, a noticeable odor and smoke were generated during the heat treatment. Example 12 Nikka gum AL (sodium alginate, Nika Chemical Co., Ltd.)
3 parts, polyethylene glycol (molecular weight = 400)
10 parts, 47 parts of water, 60 parts of original paste, 8 parts of water, 20 parts of guanidine hydrochloride (60% product), 10 parts of sodium carbonate
Part, reactive dye (CI Reactive Red)
21) A red print paste was prepared by adding 2 parts of the paste. This printing paste was printed in a pattern on a wool raising cloth (white cloth) and dried. Next, the HT steamer (HT-3-
A steaming treatment was performed at 110 ° C. for 30 minutes using Model 550 (manufactured by Tsujii Dyeing Machinery Co., Ltd.), followed by washing with water and drying through soaping. The adhesion rate of the printing paste to the wool raising cloth was 120% by weight on average.

The wool-raised cloth thus obtained had a three-dimensional pattern in which the concave portions were dyed vivid red because the printed portion was etched and dyed. Example 13 6 parts of Nikka gum 3A (processed starch, manufactured by Nichika Chemical Co., Ltd.)
In 60 parts of an original paste consisting of 10 parts of polyethylene glycol (molecular weight = 400) and 44 parts of water, 15 parts of guanidine acetate in 23 parts of water, and a reactive dye (CI Reactive)
Red 21) A red print paste was prepared by adding 2 parts of a dissolved substance. This printing paste was printed in a pattern on a wool raising cloth (white cloth) and dried. Next, the HT steamer (H
T-3-550: 1 using Tsujii Dye Machinery Co., Ltd.
Perform a steaming treatment at 10 ° C for 30 minutes, and then
After washing with water and soaping, it was dried. The adhesion rate of the printing paste to the wool raising cloth was 110% by weight on average.

The wool-raised cloth thus obtained is the same as that in Example 12, and has a three-dimensional pattern in which the concave portions are dyed vividly red by the fact that the printed portion is etched and dyed. Was. Comparative Example 3 In Example 13, 4 parts were replaced with 15 parts of guanidine acetate.
Extrusion processing was performed in the same manner as in Example 13 except that 15 parts of an 8% aqueous sodium hydroxide solution was used.

In this process, a wool brushed fabric subjected to the etching process was obtained, but the edging of the etched portion was insufficient and the red discoloration was large. When the amount of sodium hydroxide added was increased, the edging effect was increased, but the viscosity of the paste could not be maintained. Comparative Example 4 Example 13 was repeated except that 15 parts of triethanolamine was used instead of 15 parts of guanidine acetate.
In the same manner as in the above, the material was subjected to an etching process.

In this process, a wool raising cloth subjected to the etching process was obtained, but the edging at the portion to be extracted was insufficient and the red discoloration was large. In addition, a noticeable odor and smoke were generated during the heat treatment.

[0032]

According to the present invention, a pattern portion having a sharp hue pattern and a concavo-convex pattern at the time of molding, no discoloration of the dye in the color paste, and a clear hue is formed, and the design is excellent. It is possible to provide easily and safely a natural fiber material that has been subjected to the extraction process.

Claims (10)

[Claims] 1. A disinfectant for natural fiber materials containing guanidine hydrochloride and an alkali metal salt of a weak acid or guanidine acetate. 2. The disinfectant according to claim 1, further comprising polyethylene glycol. 3. A method for processing a natural fiber material using a disinfectant containing guanidine hydrochloride and an alkali metal salt of a weak acid or guanidine acetate. 4. The method according to claim 3, further comprising using a disinfectant containing polyethylene glycol. 5. The method according to claim 3, wherein a disinfectant containing guanidine hydrochloride and a weak acid alkali metal salt or containing guanidine acetate is used in the printing paste. 6. The method according to claim 5, further comprising mixing polyethylene glycol into the printing paste. 7. The content of guanidine hydrochloride and the alkali metal salt of a weak acid or the content of guanidine acetate is 0.5 to 5%.
The method according to any one of claims 3 to 6, wherein a printing paste which is 0.0% by weight is used. 8. The method according to claim 3, wherein the printing paste is printed, followed by a dry heat treatment or a wet heat treatment. 9. The method according to claim 3, wherein the natural fiber material comprises a natural polyamide fiber or a composite fiber of a natural polyamide fiber and another fiber. 10. A natural fiber material that has been subjected to an etching treatment using a disinfectant containing guanidine hydrochloride and an alkali metal salt of a weak acid, or containing guanidine acetate.