JP2007154354A - Method for processing synthetic fiber napped fabric and surface-treated synthetic fiber napped fabric - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for processing a synthetic fiber napped fabric in which printed or colored parts are left in protruded state on the surface of a synthetic fiber napped fabric and the circumferences of the printed or colored part are etched in recessed state and to provide a surface-treated synthetic fiber napped fabric. <P>SOLUTION: The method for processing the synthetic fiber napped fabric comprises a first step for printing a discharge printing agent (A1) or a coloring printing agent (A2) containing a water-absorbing inorganic substance onto a synthetic fiber raised fabric and a second step for printing an etching printing agent (B) containing a water-absorbing inorganic substance and an alkaline substance to the printed part of the discharge printing agent (A1) or the coloring printing agent (A2) and the circumference of the printed part. As a result, the synthetic fiber napped fabric having printed or colored protruded parts formed by protection from etching by the etching printing agent (B) containing the water-absorbing inorganic substance and an alkaline substance by the discharge printing agent (A1) or the coloring printing agent (A2) containing the water-absorbing inorganic substance, and recessed parts formed by the etching printing agent (B) around the protruded parts is obtained. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a synthetic fiber raised cloth processing method in which a surface of a synthetic fiber raised cloth is left in a convex shape while leaving a portion that has been discharged or colored, and the periphery thereof is etched into a concave shape, and a synthetic fiber raised cloth obtained by processing the surface.

Conventionally, a method of using a printing agent containing a disperse dye and an alkaline substance has been proposed as a method of coloring a concave portion at the same time as forming a concave portion on the surface of a synthetic fiber raised fabric. (For example, refer patent documents 1-3.). However, with the recent diversification of tastes, there is a need for a raised cloth having a newer design.
JP 56-123487 A JP 2000-96439 A JP 2002-69318 A

  SUMMARY OF THE INVENTION An object of the present invention is to provide a method for processing a synthetic fiber raised cloth, in which a portion that has been discharged or colored remains convex on the surface of the synthetic fiber raised cloth, and the periphery thereof is etched into a concave shape, and a synthetic fiber raised cloth that has been surface treated That is.

  In order to solve the above-mentioned problems, the present inventors have conducted extensive research, and as a result, have performed printing on a synthetic fiber brushed fabric with a printing or coloring printing agent containing a water-absorbing inorganic substance, and then water-absorbing. Etching printing agent containing inorganic substance and alkaline substance is printed on the surface of the printed textile printing agent or colored printing agent and its surroundings, so that the printed or colored part is convex on the surface of the synthetic fiber brushed fabric. It was found that the periphery can be etched in a concave shape.

  That is, the present invention includes a first step of printing a discharge printing agent (A1) or a colored printing agent (A2) containing a water-absorbing inorganic substance on a synthetic fiber raised fabric, and then a water-absorbing inorganic substance and an alkaline substance. Synthetic fiber raised cloth characterized in that it contains a second step of printing an etching printing agent (B) containing the printing part (A1) or the colored printing agent (A2) on the printed portion and the periphery thereof. And a synthetic fiber brushed fabric having a surface processed.

  By using the processing method of the present invention, the surface of the synthetic fiber brushed fabric can be processed by leaving the discharged or colored portion in a convex shape and etching the periphery in a concave shape, and has a new design that has never been seen before. A synthetic fiber raised fabric is obtained. Therefore, the synthetic fiber raised fabric processed by the processing method of the present invention is suitable for applications requiring design properties such as clothing, furniture, and vehicle interior materials.

  Hereinafter, the present invention will be described in detail. The discharge printing agent (A1) used in the present invention is a printing agent containing a substance having dischargeability, and prints on the surface of a ground-dyed synthetic fiber brushed fabric, and discharges the background dyeing of the printed portion. It is. The colored printing agent (A2) is a printing agent containing a coloring agent, and prints on the surface of the synthetic fiber raised fabric to color the printed portion. On the other hand, the etching printing agent (B) contains an alkaline substance, and by printing on the surface of a synthetic fiber raised cloth, the raised fibers on the printed surface are hydrolyzed and etched into a concave shape. .

  The water-absorbing inorganic substance used for the discharge printing agent (A1) is not particularly limited as long as it absorbs water in the presence of water and hydrates and swells, and examples thereof include clay minerals. Examples of the clay mineral include bentonite, montmorillonite, hectorite, saponite, piderite, attapulgite, and sepiolite. Among these water-absorbing inorganic substances, bentonite having a high water absorption swellability is preferable. The blending amount of the water-absorbing inorganic substance in the discharge printing agent (A1) is preferably 1 to 20% by mass, and more preferably 5 to 15% by mass. If the blending amount of the water-absorbing inorganic substance is within this range, the portion printed with the discharge printing agent (A1) can be clearly discharged, and further the etching printing agent on the printing surface of the discharge printing agent (A1). When (B) is printed, the water-absorbing inorganic material prevents the alkaline material from penetrating into the portion printed with the discharge printing agent (A1), so that the portion printed with the discharge printing agent (A1) is convex. Can be left in shape.

  In order to give a discharge effect to the discharge printing agent (A1), an activator is blended as a compound having discharge characteristics. Examples of this activator include ethylene glycol, polyethylene glycol, polypropylene glycol, butyl diglycol, butyl triglycol, hexyl diglycol, benzyl diglycol, polyoxyethylene alkyl ether, polyoxyalkylene phenyl ether, and the like. Among these, polyoxyalkylene phenyl ether is preferable because it has high dischargeability. Moreover, the combined use of polyoxyalkylene phenyl ether and polyethylene glycol is more preferable. As a compounding quantity of the activator in discharge printing agent (A1), 10-40 mass% is preferable and 15-35 mass% is more preferable. Further, when polyoxyalkylene phenyl ether and polyethylene glycol are used in combination, the mass ratio of polyoxyalkylene phenyl ether / polyethylene glycol is preferably 5-30 / 95-70, and 10-20 / 90- 80 is more preferable.

  The discharge effect of the discharge printing agent (A1) is that the active agent penetrates into the raised fibers of the synthetic fiber raised cloth, and the active agent dyes the raised fibers of the synthetic fiber raised cloth when washed with water. It is presumed that it will be achieved by washing with it. At this time, the water-absorbing inorganic substance in the printing / printing agent (A1) has an action of retaining the activator only in the portion where the printing / printing agent (A1) is printed, so the printing / printing agent (A1) is printed. Therefore, it is possible to prevent the active agent from penetrating and diffusing to other parts, and to obtain a discharge pattern with a clear outline. In addition, when bentonite is used among the water-absorbing inorganic substances, since the action of retaining the active agent is large only in the printed part of the discharge printing agent (A1), the discharge pattern is more clearly defined and neatly discharged. Since it is obtained, it is preferable. Furthermore, bentonite is preferable because it has a great effect of preventing the permeation of the alkaline substance in the above-described etching printing agent (B), so that the portion printed with the discharge printing agent (A1) can be left sufficiently convex. .

  A disperse dye is used as a colorant to be blended with the color printing agent (A2). The disperse dye is not particularly limited, but among these, an anthraquinone dye having high light resistance and alkali fastness is preferable. Examples of the anthraquinone dye include C.I. I. Disperse Yellow 51, C.I. I. Disperse Red 91, C.I. I. Disperse Red 92, C.I. I. Disperse Blue 60, C.I. I. Disperse Blue 158 and the like. These disperse dyes can be used alone or in combination of two or more. Moreover, although the compounding quantity of the disperse dye in a coloring textile printing agent (A2) changes with target colors, 0.05-7 mass% is preferable normally.

  As the water-absorbing inorganic substance to be blended with the colored printing agent (A2), the same water-absorbing inorganic material as the discharge printing agent (A1) can be used, and among them, bentonite having high water-absorbing swellability is preferable. As a compounding quantity of the water absorbing inorganic substance in the discharge printing agent (A1), 1 to 20% by mass is preferable, and 1 to 15% by mass is more preferable. Since this water-absorbing inorganic substance has an action of retaining the disperse dye only in the portion where the colored printing agent (A2) is printed, the disperse dye is applied to the portion other than the portion where the colored printing agent (A2) is printed. Permeation and diffusion can be prevented, and a colored pattern with a clear outline can be obtained. In addition, when bentonite is used among the water-absorbing inorganic substances, since the action of holding the disperse dye is large only in the printed portion of the color printing agent (A2), the contour is clearer and the colored pattern having a high coloring concentration is formed. Since it is obtained, it is preferable. Furthermore, bentonite is preferable because it has a great effect of preventing the permeation of the alkaline substance in the above-described etching printing agent (B), so that the portion printed with the colored printing agent (A2) can be left in a sufficiently convex shape. .

  Furthermore, when the ground-dyed color of the synthetic fiber brushed fabric is discharged to give a clearer color, it is preferable to add an activator to the colored printing agent (A2). As this activator, the same ones as the above-mentioned discharge printing agent (A1) can be used, among which polyethylene glycol, butyl diglycol and polyoxyalkylene phenyl ether are preferable. When the activator is blended with the color printing agent (A2), the blending amount of the activator in the color printing agent (A2) is preferably 1 to 30% by mass, and more preferably 5 to 20% by mass.

  The discharge printing agent (A1) and the colored printing agent (A2) preferably have a pH of less than 7, since the synthetic fiber brushed fabric can be processed into a convex shape with sharper corners. Is more preferably 4-6.

  The alkaline substance used for the etching printing agent (B) is preferably a strong alkaline substance, for example, an inorganic alkaline substance such as sodium hydroxide, potassium hydroxide, calcium hydroxide, barium hydroxide; ammonia water, guanidine carbonate, etc. And organic alkali substances. Among these, an inorganic alkali material having heat resistance that can withstand the heat steam treatment performed after the printing of the etching printing agent (B) is preferable. Among inorganic alkali materials, sodium hydroxide is particularly preferable because of its high etching effect. As a compounding quantity of the alkaline substance in an etching printing agent (B), 5-30 mass% is preferable, and 10-20 mass% is more preferable. If the blending amount of the alkaline substance is within this range, the surface of the synthetic fiber raised cloth can be etched into a good concave shape.

  When sodium hydroxide is used as the alkaline substance, it is preferably used in an aqueous solution. The concentration is not particularly limited, but usually it is preferably 30 to 50% by mass.

  As the water-absorbing inorganic substance blended in the etching printing agent (B), the same water-absorbing inorganic material as the discharge printing agent (A1) can be used, and among these, bentonite having high water-absorbing swellability is preferable. The blending amount of the water-absorbing inorganic substance in the discharge printing agent (A1) is preferably 1 to 10% by mass, and more preferably 1 to 5% by mass. Since this water-absorbing inorganic substance has an action of retaining the alkaline substance only in the portion where the etching printing agent (B) is printed, it is formed on the surface of the synthetic fiber brushed fabric printed with the etching printing agent (B). Since the alkaline substance can be retained and the penetration of the alkaline substance into the lower part of the raised fiber can be moderately suppressed, all the raised fibers are not hydrolyzed and the base fabric is not exposed, leaving the raised fibers appropriately. It can be etched into a concave shape with a clear outline. Among the water-absorbing inorganic substances, it is preferable to use bentonite because it can be etched into a concave shape better.

  In addition, when the surface of the synthetic fiber brushed fabric is etched into a concave shape and the etched portion is colored at the same time, a disperse dye similar to the colored printing agent (A2) may be added to the etching printing agent (B) as a coloring agent. . Moreover, when mix | blending a disperse dye with an etching printing agent (B), although the compounding quantity of the disperse dye in an etching printing agent (B) changes with target colors, 0.05-7 mass% is preferable normally. .

  When a disperse dye is blended with the etching printing agent (B), the water-absorbing inorganic substance in the etching printing agent (B) has the same action as the water-absorbing inorganic substance blended with the colored printing agent (A2). Since the water-absorbing inorganic substance retains the disperse dye only in the portion printed with the etching printing agent (B), the disperse dye penetrates into the portion other than the portion printed with the etching printing agent (B). Diffusion can be prevented, and only the bottom surface etched into a concave shape can be colored with a high concentration.

  Furthermore, it is preferable to add an activator to the etching printing agent (B) because the disperse dye can be smoothly penetrated into the lower part of the raised fiber, so that the bottom surface of the recess can be colored with a higher concentration. As this activator, the same ones as the above-mentioned discharge printing agent (A1) can be used, and among them, polyethylene glycol and butyl diglycol are preferable. When the activator is blended with the etching printing agent (B), the blending amount of the activator in the etching printing agent (B) is preferably 1 to 30% by mass, and more preferably 5 to 20% by mass.

  As described above, when a coloring agent is blended with the etching printing agent (B), if a coloring agent having a different color from the coloring agent blended with the coloring printing agent (A2) is used, a convex portion on the synthetic fiber raised fabric is used. Since the concave portions and the concave portions are different from each other, it is preferable because processing with higher designability is possible.

  The discharge printing agent (A1), the colored printing agent (A2) and the etching printing agent (B) maintain an appropriate viscosity in order to impart coating suitability, and an excess of these printings during washing with water. It is preferable to add a paste so that the agent can be easily removed from the raised fibers. Such pastes include, for example, sodium carboxymethylcellulose, propoxycellulose, alginates, guar gum ethylene oxide adducts, ethylcellulose, methylcellulose, British gum and other processing pastes; polyacrylates, polyacrylic acid derivatives, poly Various pastes such as vinyl acetate, acrylic acid ester-vinyl acetate copolymer, polyvinyl alcohol, polyvinyl butyral, polyurethane, polymaleic acid copolymer salt, and a synthetic paste such as a nonionic surfactant can be used. These pastes can be used alone or in combination of two or more. The compounding amount of these pastes is preferably 0.5 to 10% by mass, and 1 to 5% by mass in the discharge printing agent (A1), the colored printing agent (A2) or the etching printing agent (B). More preferred.

  Among the above-mentioned pastes, sodium carboxylmethylcellulose is surplus in washing with water after printing discharge printing agent (A1), colored printing agent (A2) or etching printing agent (B) on synthetic fiber raised cloth. These printing agents are preferred because they can be easily removed from the raised fibers. Further, when sodium carboxymethyl cellulose is used as a paste to be blended with the etching printing agent (B), it is preferable to add an aqueous solution of an alkaline substance such as sodium hydroxide because the decrease in the viscosity of the etching printing agent (B) is small.

  It is preferable to add an aqueous acrylic resin to the colored printing agent (A2) and the etching printing agent (B) in which a disperse dye is blended as a colorant because there is an effect of preventing the disperse dye from being decomposed by an alkaline substance. Moreover, also in the etching printing agent (B) which does not mix | blend a disperse dye, when a water-based acrylic resin is mix | blended, since the viscosity fall by the mixing | blending of an alkaline substance can be suppressed, it is preferable. Examples of the aqueous acrylic resin include (meth) acrylic acid- (meth) acrylic acid ester copolymers, (meth) acrylic acid- (meth) acrylic acid ester-styrene copolymers, and the like. These aqueous acrylic resins are usually synthesized by emulsion polymerization and used in the form of an emulsion in which the resin is dispersed in water.

  Examples of the (meth) acrylic acid ester used as a raw material for the aqueous acrylic resin include, for example, methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, and the like. Is mentioned. These (meth) acrylic acid esters can be used alone or in combination of two or more.

  The molecular weight of the water-based acrylic resin is preferably in the range of 1,000 to 500,000, more preferably in the range of 10,000 to 200,000, particularly in the range of 50,000 to 100,000. preferable. The acid value is preferably in the range of 5 to 500.

  Moreover, the compounding amount of the aqueous acrylic resin in the case of blending the aqueous acrylic resin into the colored printing agent (A2) and the etching printing agent (B) containing the disperse dye is as follows: The range of 5-300 mass parts is preferable. When the blending amount of the aqueous acrylic resin is within this range, the disperse dye can be sufficiently protected, so that a high coloring density is obtained. Furthermore, the blending amount of the aqueous acrylic resin in the case where the aqueous acrylic resin is blended with the etching printing agent (B) not blended with the disperse dye is preferably 1 to 20% by mass in the etching printing agent (B), 1-10 mass% is more preferable. If the blending amount of the aqueous acrylic resin is within this range, it is preferable because viscosity reduction due to blending of the alkaline substance can be suppressed.

  If necessary, the textile printing agent of the present invention may contain additives such as surfactants, anti-reduction agents, sequestering agents, fluorescent whitening agents, preservatives, UV absorbers, and antioxidants. You can also.

  Examples of the method for preparing the discharge printing agent (A1), the colored printing agent (A2) and the etching printing agent (B) used in the present invention include the following methods.

(1) Preparation method of discharge printing agent (A1) A paste is dissolved or dispersed in water, and a water-absorbing inorganic substance, an activator, etc. are added to the solution or dispersion and mixed uniformly to prepare an original paste. . Next, if necessary, water is added to adjust pH and viscosity to obtain a discharge printing agent (A1).

(2) Preparation method of colored printing agent (A2) Dissolve or disperse the paste in water, add a water-absorbing inorganic substance, an activator, an aqueous acrylic resin, etc. to the solution or dispersion and mix uniformly. Adjust as the original paste. A liquid in which a disperse dye is dispersed in water is added to the original paste and dispersed and mixed. Then, if necessary, water is added to adjust pH and viscosity to obtain a colored printing agent (A2).

(3) Etching printing agent (B) preparation method Dissolve or disperse the paste in water, add water-absorbing inorganic substance, activator, aqueous acrylic resin, etc. to the solution or dispersion, and mix uniformly. Adjust as the original paste. Next, an aqueous solution of an alkaline substance and, if necessary, a liquid in which a disperse dye is dispersed in water are added to this base paste and dispersed and mixed to obtain an etching printing agent (B).

  Moreover, as a processing method of the synthetic fiber raising fabric of this invention, the method by the following processes 1-5 is mentioned, for example.

(First step)
The discharge printing agent (A1) or the colored printing agent (A2) is printed on the synthetic fiber raised cloth by a method such as roller printing, auto printing, or hand printing.

(Second step)
Next, the wet printing surface of the discharge printing agent (A1) or the colored printing agent (A2) printed in the first step and the etching printing agent (B) around it are used for roller printing, auto printing, hand printing, etc. Imprint by the method.

  In the first step and the second step described above, the discharge printing agent (A1) or the colored printing agent (A2) and the etching printing agent (B) are printed on the synthetic fiber raised fabric, and then the following third step. Perform post-processing by.

(Third step)
3-1. Drying Step The synthetic fiber brushed fabric printed with the above-mentioned printing / printing agent (A1) or colored printing agent (A2) and etching printing agent (B) is dried at room temperature and then at 100 to 130 ° C. for 2 to 3 minutes. dry.

3-2. Thermal steam treatment process The synthetic fiber brushed fabric dried above is subjected to thermal steam treatment for 5 to 10 minutes under the conditions of a temperature of 140 ° C to 180 ° C and a steam amount of 50 to 100% using an HT steamer to develop a dye. Let

3-3. Reduction washing process The synthetic fiber raising cloth which performed the heat steam process above is wash | cleaned, maintaining at 80-90 degreeC using the aqueous solution of sodium hydrosulfite, synthetic detergent, and sodium hydroxide.

3-4. Washing and drying step The synthetic fiber raised cloth reduced and washed as described above is washed with water and then air-dried at room temperature or heated and dried at a temperature at which the fibers constituting the synthetic fiber raised cloth are not dissolved.

  Through the first step to the third step, the surface of the synthetic fiber fabric is left in a convex shape in a state where the application surface of the discharge printing agent (A1) or the colored printing agent (A2) is colored or discharged, and its periphery is It can be etched in a concave shape.

  The synthetic fiber raised fabric used in the present invention is preferably made of synthetic fiber that is susceptible to hydrolysis by an alkaline substance because it needs to be etched by an etching printing agent (B) containing an alkaline substance. Examples of such synthetic fibers include polyester fibers and cationic diable polyester fibers. Among these polyester fibers, polyethylene terephthalate fibers are preferable because they are easily etched by the etching printing agent (B). Further, the synthetic fiber raised fabric used in the present invention is preferably a tricot fabric or a moquette fabric, and the length of the raised fibers (length of the hair feet) is preferably 0.5 to 2 mm because the surface can be easily processed. 1 to 1.5 mm is more preferable.

  As shown in FIG. 1, the synthetic fiber raised cloth of the present invention is etched on the surface of the synthetic fiber raised cloth 1 with a water-absorbing inorganic substance and an alkaline substance by the discharge printing agent (A1) or the colored printing agent (A2). It is a synthetic fiber brushed fabric having convex portions 3 formed by protection from etching by the printing agent (B) and concave portions 4 formed by the etching printing agent (B) around the convex portions 3. By printing the discharge printing agent (A1) or the colored printing agent (A2) on the surface of the synthetic fiber brushed fabric 1 with an arbitrary pattern such as a character or a figure, the convex portion 3 having an arbitrary pattern can be formed. . Moreover, the recessed part 4 of arbitrary designs can be formed by printing the etching printing agent (B) on the surface of the synthetic fiber raising fabric 1 with arbitrary designs, such as a character and a figure. Moreover, 30-70% of the length of the original raising fiber is preferable, and 40-60% of the length of the raising fiber of the synthetic fiber raising fabric left in the recessed part 4 is more preferable.

  Hereinafter, the present invention will be described in more detail using Examples and Comparative Examples. In the following examples, “part” and “%” are based on mass.

  First, as described below, an original paste used for a discharge printing agent, a colored printing agent, and an etching printing agent was prepared.

(Preparation Example 1)
To 41 parts of an aqueous solution obtained by dissolving 5 parts of a paste (sodium carboxylmethylcellulose, “Finegum HE-SS” manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) in 36 parts of ion-exchanged water, “Benkeley MK-101” manufactured by Mizusawa Chemical Co., Ltd. ] 16 parts, 5 parts of activator (polyoxypropylene bisphenol ether, Sanyo Kasei Kogyo "New Pole BP-5P") and 35 parts of polyethylene glycol (Nippon Yushi Co., Ltd. "PEG300") are added uniformly. To obtain the original paste (1).

(Preparation Example 2)
To 56 parts of an aqueous solution obtained by dissolving 4 parts of sodium carboxymethylcellulose (Daiichi Kogyo Seiyaku Co., Ltd. “Finegum HE-SS”) in 52 parts of ion-exchanged water, bentonite (“Benclay MK-101” manufactured by Mizusawa Chemical Co., Ltd.) 6 Parts, polyethylene glycol (Nippon Yushi Co., Ltd. "PEG300") 11 parts, butyl diglycol (Nippon Emulsifier Co., Ltd.) 7 parts, and acrylic resin emulsion solution (Dainippon Ink & Chemicals, Inc. "PA-4" ”, 17 parts of solid content) was added and mixed uniformly to obtain the original paste (2).

(Preparation Example 3)
To 41 parts of an aqueous solution in which 5 parts of sodium carboxymethylcellulose (Daiichi Kogyo Seiyaku Co., Ltd. “Finegum HE-SS”) is dissolved in 36 parts of ion-exchanged water, an activator (polyoxypropylene bisphenol ether (manufactured by Sanyo Chemical Industries, Ltd.) is added. 5 parts of “New Paul BP-5P”) and 35 parts of polyethylene glycol (“PEG300” manufactured by NOF Corporation) were added and mixed uniformly to obtain an original paste (3).

(Preparation Example 4)
To 41 parts of an aqueous solution in which 5 parts of sodium carboxymethylcellulose (Daiichi Kogyo Seiyaku "HE-SS") is dissolved in 36 parts of ion-exchanged water, 35 parts of polyethylene glycol ("PEG300" manufactured by NOF Corporation) are added, The original paste (4) was obtained by mixing uniformly.

(Preparation Example 5)
Sodium carboxymethylcellulose (Daiichi Kogyo Seiyaku Co., Ltd. “Fine Gum HE-SS” 4 parts dissolved in ion exchange water 52 parts, polyethylene glycol (Nippon Yushi Co., Ltd. “PEG300”) 11 parts, butyl Add 7 parts of diglycol (manufactured by Nippon Emulsifier Co., Ltd.) and 17 parts of acrylic resin emulsion solution ("PA-4", 25% solid content by Dainippon Ink & Chemicals, Inc.) A paste (5) was obtained.

  The composition table of the original pastes (1) to (5) obtained above is shown in Table 1.

Example 1
[Discharge printing agent]
To 70 parts of the original paste (1) obtained above, 30 parts of ion-exchanged water was added and mixed uniformly to obtain a discharge printing agent (1).
[Etching printing agent]
To 50 parts of the original paste (2) obtained above, 30 parts of a 38% aqueous sodium hydroxide solution and 20 parts of ion-exchanged water were added and mixed uniformly to obtain an etching printing agent (1).

(Example 2)
[Colored printing agent]
To 70 parts of the original paste (1) obtained above, C.I. I. Disperse Blue 60 (Nippon Kayaku Co., Ltd. “TURQ.BLUE GLS-200”) 0.1 parts dispersed in ion-exchanged water 29.9 parts was added and mixed uniformly to give a blue colored printing agent ( 1) was obtained.
[Etching printing agent]
The etching printing agent (1) obtained in Example 1 was used.

(Example 3)
[Colored printing agent]
To 50 parts of the original paste (2) obtained above, C.I. I. Disperse Blue 60 (Nippon Kayaku Co., Ltd. “TURQ.BLUE GLS-200”) 0.1 parts dispersed in 47.9 parts of ion-exchanged water and 2 parts of 38% sodium hydroxide aqueous solution were added. By mixing uniformly, a blue colored printing agent (2) was obtained.
[Etching printing agent]
The etching printing agent (1) obtained in Example 1 was used.

Example 4
[Colored printing agent]
To 50 parts of the original paste (2) obtained above, C.I. I. Disperse Blue 60 (Nippon Kayaku Co., Ltd. “TURQ.BLUE GLS-200”) 0.1 parts dispersed in ion-exchanged water 46.4 parts, and 38% sodium hydroxide aqueous solution 3.5 parts In addition, it was mixed uniformly to obtain a blue colored printing agent (3).
[Etching printing agent]
The etching printing agent (1) obtained in Example 1 was used.

(Example 5)
[Colored printing agent]
The blue colored printing agent (1) obtained in Example 2 was used.
[Etching printing agent]
To 50 parts of the original paste (2) obtained above, C.I. I. Disperse Red 91 (Nippon Kayaku Co., Ltd. “Pink RCL-E”) 0.1 parts dispersed in 19.9 parts of ion-exchanged water and 30 parts of 38% sodium hydroxide aqueous solution were added uniformly. By mixing, a red etching printing agent (2) was obtained.

(Comparative Example 1)
[Discharge printing agent]
To 70 parts of the original paste (3) obtained above, 30 parts of ion-exchanged water was added and mixed uniformly to obtain a discharge printing agent (2).
[Etching printing agent]
The etching printing agent (1) obtained in Example 1 was used.

(Comparative Example 2)
[Colored printing agent]
To 70 parts of the original paste (4) obtained above, C.I. I. Disperse Blue 60 (Nippon Kayaku Co., Ltd. “TURQ.BLUE GLS-200”) 0.1 parts dispersed in ion-exchanged water 29.9 parts was added and mixed uniformly to give a blue colored printing agent ( 4) was obtained.
[Etching printing agent]
The etching printing agent (1) obtained in Example 1 was used.

(Comparative Example 3)
[Colored printing agent]
The blue colored printing agent (2) obtained in Example 3 was used.
[Etching printing agent]
To 50 parts of the original paste (5) obtained above, 30 parts of a 38% aqueous sodium hydroxide solution and 20 parts of ion-exchanged water were added and mixed uniformly to obtain an etching printing agent (3).

(Comparative Example 4)
[Discharge printing agent]
The discharge printing agent (2) obtained in Comparative Example 1 was used.
[Etching printing agent]
The etching printing agent (3) obtained in Comparative Example 3 was used.

(Comparative Example 5)
[Colored printing agent]
The blue colored printing agent (4) obtained in Comparative Example 2 was used.
[Etching printing agent]
The etching printing agent (3) obtained in Comparative Example 3 was used.

(Production of brushed fabric for evaluation)
On the surface of a raised cloth made of polyethylene terephthalate fibers ground-dyed in beige color, the screen printing machine or colored printing agent obtained in the above-mentioned Examples and Comparative Examples is applied to an auto screen printing machine (manufactured by Sakurai Dyeing Machine Co., Ltd.). "SP-300SR") was used for printing. Next, an etching printing agent was similarly printed using an autoscreen printing machine on the wet printing surface of the discharge printing agent or the colored printing agent and on the periphery thereof. The raised fabric printed with the discharge printing agent or the colored printing agent and the etching printing agent was dried at room temperature, and further dried at 100 ° C. for 2 minutes.

  Subsequently, the dried raised cloth was subjected to a thermal steam treatment for 8 minutes under the conditions of a temperature of 175 ° C. and a steam amount of 90% or more using an HT steamer (“HTS-71” manufactured by Showa Machine Industry Co., Ltd.). This hot steam-treated raised cloth is reduced and washed at 80 ° C. using a solution obtained by adding 2 g of hydrosulfite sodium, 2 g of synthetic detergent and 2 g of sodium hydroxide to 1 liter of ion-exchanged water, washed with water, and then dried. Thus, a raised cloth for evaluation was obtained.

(Evaluation of survivability of protrusions)
The state of the portion printed with the discharge printing agent or the colored printing agent was visually observed, and the state of the formed convex portion was judged according to the following criteria to evaluate the residual property of the convex portion.
A: The projection remains sufficiently convex, and the corners of the projection are sharp.
○: Although it remains sufficiently convex, the corner of the convex part is round.
X: It does not remain convex.

(Etching property evaluation)
The state of the portion printed with the etching printing agent (excluding the portion printed with the discharge printing agent or the colored printing agent) is visually observed, and the state of the formed concave portion is judged according to the following criteria to determine the etching property. Evaluated.
(Circle): A recessed part is fully formed and the raising fiber remains in the bottom face of a recessed part.
X: All the raised fibers are etched, and the base fabric of the synthetic fiber raised fabric is exposed.

(Evaluation of discharging and coloring of convex parts)
It was visually observed whether the portion printed with the discharge printing agent or the colored printing agent was discharged or colored, and the discharging / coloring properties of the convex portions were evaluated according to the following criteria. In addition, the evaluation of “×” in the evaluation of the remaining property of the convex portion was not evaluated.
○: Fully discharged or colored.
X: Not discharged or colored.

(Evaluation of coloration of recesses)
Only in Example 5 in which a coloring agent was added to the etching printing agent, the coloration state of the recess formed by the etching printing agent was visually observed, and the coloring property of the recess was evaluated according to the following criteria.
○: Fully colored.
X: Not colored.

  The above evaluation results are shown in Tables 2 and 3. In the table, “presence / absence of water-absorbing inorganic substance” is indicated as “◯” when a water-absorbing inorganic substance is blended in each printing agent, and “x” when it is not blended. Furthermore, the pH value of each printing agent is also described.

  From the results shown in Table 2, in the synthetic fiber raised fabrics of Examples 1 to 5 using the synthetic fiber raised fabric processing method of the present invention, the portion printed with the discharge printing agent or the colored printing agent is clearly convex. It was found that the periphery thereof was sufficiently etched in a concave shape. Further, it was found that the portion printed with the discharge printing agent or the colored printing agent was sufficiently discharged or colored. Moreover, in Example 5 which mix | blended the coloring agent of a different color with a coloring textile printing agent and an etching textile printing agent, the part processed into the convex shape on the synthetic fiber raising cloth and the part processed into the concave shape are different, respectively. It has been found that it can be colored with a color and can be processed with better design.

  From the results of Comparative Examples 1 to 5 shown in Table 3, the following was found.

  Comparative Example 1 is an example in which a water-absorbing inorganic substance was not blended in the discharge printing agent. In this example, it was found that the portion printed with the discharge printing agent was discharged, but it did not remain in a convex shape, and the entire portion printed with the etching printing agent was etched into a concave shape.

  Comparative Example 2 is an example in which a water-absorbing inorganic substance was not blended with the colored printing agent. In this example, the portion printed with the colored printing agent was colored blue, but it did not remain convex as in Comparative Example 1, and the entire portion printed with the etching printing agent was etched into a concave shape. It was.

  Comparative Example 3 is an example in which a water-absorbing inorganic substance was not blended in the etching printing agent. In this example, the portion printed with the colored printing agent is colored blue but does not remain convex, and all the raised fibers are etched in the portion printed with the etching printing agent other than the portion printed with the colored printing agent. It was found that the base fabric of the synthetic fiber raised fabric was exposed.

  Comparative Example 4 is an example in which a water-absorbing inorganic substance was not blended in the discharge printing agent and the etching printing agent. In this example, the portion printed with the discharge printing agent and the surrounding portion were discharged, and the outline of the discharge portion became unclear. Further, it was found that the portion printed with the discharge printing agent did not remain convex, and all the raised fibers were etched in the entire portion printed with the etching printing agent, and the base fabric of the synthetic fiber raised fabric was exposed. .

  Comparative Example 5 is an example in which a water-absorbing inorganic substance was not blended in the colored printing agent and the etching printing agent. In this example, the portion printed with the colored printing agent and the surrounding portion were colored blue, and the outline of the colored portion became unclear. Further, it was found that the portion printed with the colored printing agent did not remain convex, and all the raised fibers were etched in the entire portion printed with the etching printing agent, and the base fabric of the synthetic fiber raised fabric was exposed. .

It is a perspective view of the synthetic fiber raising cloth which carried out surface processing of the present invention.

Explanation of symbols

1 Synthetic fiber raised cloth 2 Base cloth 3 Convex part 4 Concave part

Claims (6)

A first step of printing a discharge printing agent (A1) or a colored printing agent (A2) containing a water-absorbing inorganic substance on a synthetic fiber raised fabric, and then an etching printing agent containing a water-absorbing inorganic substance and an alkaline substance ( A method of processing a synthetic fiber raised fabric characterized in that B) includes a second step of printing on the printed portion of the discharge printing agent (A1) or the colored printing agent (A2) and the periphery thereof. The method for processing a synthetic fiber raised fabric according to claim 1, wherein the water-absorbing inorganic substance is a clay mineral. The method for processing a synthetic fiber raised fabric according to claim 2, wherein the clay mineral is bentonite. The method for processing a synthetic fiber brushed fabric according to any one of claims 1 to 3, wherein the pH of the discharge printing agent (A1) or the colored printing agent (A2) is less than 7. The colored printing agent (A2) used in the first step and the etching printing agent (B) used in the second step contain colorants of different colors. Processing method of synthetic fiber raised cloth. Convex parts formed by protecting from etching by an etching printing agent (B) containing a water-absorbing inorganic substance and an alkaline substance by a discharge printing agent (A1) or a coloring printing agent (A2) containing a water-absorbing inorganic substance And a synthetic fiber brushed fabric comprising a concave portion formed by the etching printing agent (B) around the convex portion.

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