JPS5845518B2 - Fabric blur dyeing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a novel fabric, especially for artificial flowers, which is characterized by uniform, circular or asymptotic diffusion of an aqueous dye solution by impregnating the surface of a synthetic fiber knitted fabric with a compound and pre-polymerizing it. The present invention relates to a method for blurring fabric dyeing.

Conventionally, artificial flower fabrics, i.e., petal-shaped or leaf-shaped knitted fabrics, are layered together to create a blurred dyeing method for petals or bundles, in which an aqueous dye solution is applied with a brush or sprayed onto the ends of the petals or bundles. After applying a dye concentration gradient to the central and end portions of the petal or leaf by spraying the aqueous dye solution onto the end of the bundle or injecting the aqueous dye solution into the central part of the petal or bundle with something like a syringe. The petals or clusters were subjected to blurring dyeing by applying the energy necessary for dyeing with dry heat, wet heat, or a solvent.

However, in the conventional artificial flower dyeing method, when looking at the diffusion state of the applied dye aqueous solution, there are two types of diffusion: one due to capillary action between the yarns that make up the knitted fabric, and the other due to adsorption of the single fibers that make up the yarn. Especially in synthetic fiber knitted fabrics, the former has a large effect, and the aqueous dye solution enters between the threads, resulting in linear dyeing, which has the disadvantage that uniform blurring cannot be achieved.

That is, directionality occurs depending on the texture of the knitted fabric and the yarn fineness, making it difficult to uniformly and asymptotically diffuse the aqueous dye solution.

Moreover, as an effect of the latter, the boundary between the end point reached by the aqueous dye solution and the end point not reached becomes discontinuous, resulting in a drawback that so-called "jitteriness" occurs.

In addition, in the conventional blur dyeing method for artificial flowers, there is a limit to the number of petals or clusters that can be processed, at most a few petals per process, and the productivity is low, and it is difficult to obtain uniform blur dyed products. .

In addition, commercially available moisture and water absorbing agents that have primary moisture and water absorption properties tend to cause selective diffusion of the dye aqueous solution due to the texture of the knitted fabric and differences in yarn fineness, making it difficult to achieve uniform blur dyeing. there were.

The object of the present invention is to solve the drawbacks of the conventional blurring dyeing method for artificial flowers, and to provide a blurring dyed fabric bundle for artificial flowers that provides reproducibility and productivity and a uniform 7a' concentration gradient that could not be expected in the past. .

In order to achieve the above object, the present invention relates to a method for blurring artificial flowers, which requires impregnating the surface of a synthetic fiber knitted fabric with a compound and subjecting it to pre-polymerization treatment.

That is, "(1) A fabric characterized by partially applying a dye solution to a synthetic fiber fabric on which a continuous coating of the following compound (a) or (b) is formed, and then subjecting it to a coloring treatment. blur dyeing method.

(a) A vinyl compound in which at least two or more acrylic or methacrylic groups have been introduced at both ends or one end of a main chain mainly consisting of a polyalkylene oxide segment or as a side chain of the main chain.

(b) General formula % formula %) (However, R: H or OH2, R': C! l or B r, I, QC!2 H3, 5OCH, 8
002H5 and 0 weight 10.10≦l) A copolymer of a compound represented by the following formula and a polymerizable polymer or divinyl compound.

(2) The dyeing method according to claim 1, wherein the fabric is a petal- or leaf-shaped artificial flower fabric.

(3) The dyeing method according to claim 1 or 2, in which a plurality of fabrics are stacked one on top of the other.

” related.

To describe the present invention in more detail, the surface of a synthetic fiber fabric to be used as a fabric bundle for artificial flowers is impregnated in advance in a dipping bath in which a polymerization initiator is added to an aqueous solution of the following compound (1) or (2). The polymerization reaction of the compound is started at 80°C to 140°C in the presence of heated steam, and after the polymerization reaction is completed, it is washed with water and dried.

Next, the synthetic fiber cloth that has been impregnated with the compound and pre-polymerized is cut into the desired petal or leaf shape, and a plurality of sheets are stacked to form a petal bundle or bunch. A predetermined amount of an aqueous solution is applied to the center or end of a petal bundle or bundle, a concentration gradient of the dye aqueous solution is applied, and the color is developed by drying, moist heat, or energy such as a solvent. After dyeing is completed, the process is washed, washed with hot water, and dried. be.

The compounds used in the present invention are as follows: (1) At least two or more acrylic or methacrylic groups have been introduced at both ends or one end of a main chain mainly composed of polyalkylene oxide segments, or as side chains of the main chain. vinyl compound.

is Br,■,OCH3,0C2H6,5OCH3SOC
It is a copolymer of a compound represented by 2H3 (0 weight x 10.10≦l) and a polymerizable mono- or divinyl compound.

The synthetic fiber fabric used in the present invention is made of synthetic fibers such as polyamide, polyester, polyacrylonitrile, and polyolefin, and is not limited by its manufacturing method, constituent components, and arrangement form.

In addition, as the polymerization initiator used in the present invention, general vinyl polymerization initiators such as ammonium persulfate, potassium persulfate, and azobisisobutyronitrile may be used. By doing so, coating treatment can be carried out under desired treatment conditions.

Next, the blurring dyeing method of the present invention will be explained with reference to Examples.

Note that the examples are for explaining the blurring dyeing method of the present invention, and are not intended to explain the blurring dyeing method of the present invention.

Example 1 A polyester tack was scoured, exposed to fluorescent light, and dried by a conventional method, and then 0% ammonium persulfate was added to an aqueous solution of 13% by weight of polyethylene glycol dimethanolyl whose polyoxyethylene segment has a molecular weight of 1,000.
．． The polyester tack was impregnated with a treatment liquid containing 3% by weight and squeezed uniformly using a panda.

The amount of the treatment liquid attached was 35%.

It is then treated at 105°C for 3 minutes in the presence of heated steam, and then the unreacted material is washed with 0.0% of Marcel soap.
It was washed and removed by soaping for 2 minutes with an aqueous solution containing 5-weight type at 50°C, followed by washing with water and drying.

The polyester taffeta subjected to such polymerization pretreatment was
Stack 100 crrL petal-shaped petal bundles to form a petal bundle with a thickness of approximately 1 crrL, and add 5 ml of Resolin Red FB (Bayer) 3% aqueous solution to the ends of the petal bundle.
The petal bunch was rotated and attached, and then heated in a steamer for 130 minutes.
Color development was performed at ℃ for 20 minutes.

After coloring treatment, hydrosulfide (manufactured by Mitsui Toatsu) 29
/l caustic soda (47°Be') 1,! @ / l,
Sanchit, G900 (Sanyo Chemical) 0.5&/1 and 8
Reduction cleaning was performed at 0°C for 20 minutes to remove undeveloped dye and surface dye, followed by drying at 110°C for 30 minutes.

The petals obtained are dark at the edges and become very naturally pale toward the center, with a long diameter of about 1.5 crrL at the center.
Short axis 1crfL was uniformly stained with white residue.

This petal was measured using a color difference meter (manufactured by Tokyo Juishiki), with an area of 1 cm.
The results of measuring the brightness from the center to the edge of the petal in rA units are shown in Table 1.

In addition, when one drop of the dye aqueous solution of Example 1 was added to the pre-polymerization treated fabric of Example 1 of the present invention with a syringe needle, the diffusion range and diffusion situation were compared with the untreated fabric, and the results are shown in Table 2. It seemed like that.

Example 2 The polyester taffeta was impregnated with a treatment solution in which the sample of Example 1 was added to an aqueous solution of 2 weight φ of polyethylene glycol dimethacrylate having a molecular weight of 1,100 and 0.2 weight of potassium persulfate, and was squeezed uniformly with a padder. Ta.

The amount of the treatment liquid attached was 30%.

Next, the mixture was treated at 105°C for 3 minutes in the presence of heated steam, and then unreacted substances were washed away in the same manner as in Example 1, washed with water, and dried.

The polyester taffeta subjected to such polymerization pretreatment has a major diameter of 5.
crrL, short axis 2.5 CrrL, cut into leaf shapes, stacked 100 sheets to form a leaf bundle with a thickness of about 1 crfL,
Balaneer Yellow Sunsea (Badate Ishu) 15%
A 3% aqueous solution of Resolin Blue FBL (Bayer) was injected into the center of the leaf bundle using a 4 ml injection needle, and then suspended in a desiccator containing methylene chloride and left at room temperature overnight. Reduction cleaning, hot water washing, and drying were performed in the same manner as above.

The resulting leaves were dark in the center and very naturally lightened towards the edges, giving a uniform -f, f blur dyed product.

The brightness of this leaf was measured in the same manner as in Example 1, and the results are shown in Table 1, and the brightness was gamma.

Further, when one drop of the aqueous dye solution of Example 2 was added with a syringe needle to the polymerization pretreatment of Example 2 of the present invention, the diffusion range and diffusion state were as shown in Table 2.

Example 3 Polyamide taffeta was scoured, exposed to fluorescent light, and dried in a conventional manner, and then subjected to a prepolymerization treatment in the same manner as in Example 1.

This prepolymerized polyamide taffeta had a diameter of 5crI.
Cut into L petal shapes and stack 120 pieces to a thickness of 0.6 cm.
Make a petal bundle of IIL, and add 5 ml of Suminol Milling Red Earl Varnish (Sumitomo Chemical) 3% aqueous solution to the center of the petal bundle.
The mixture was injected and then subjected to color development treatment at 103° C. for 20 minutes in a steamer.

Color development treatment 1, 50℃ with 0.05% Marcel soap aqueous solution
It was soaped for 15 minutes, washed with hot water, and dried.

The resulting petals were dark in the center and became naturally lighter toward the ends, resulting in a uniformly blurred dye.

The brightness of this petal was measured in the same manner as in Example 1, and the results are shown in Table 1.

However, A is the maximum length of the dyed part where muscle diffusion is not observed (measured along the length direction of the constituent threads) B is the maximum length of the part containing the dye

Claims (1)

[Claims] 1. A synthetic fiber fabric on which a continuous film of the following compound (a) or (b) is formed is partially applied with a dye solution, and then subjected to a coloring treatment. How to dye fabric with blur. (a) A vinyl compound in which at least two or more acrylic or methacrylic groups have been introduced at both ends of a main chain mainly consisting of polyalkylene oxide segments or as side chains of the main chain. (b) General formula % formula % (However, R:H or OH3, R':01 or B
r, I, 00H3,QC2H,,5OOH3,5
OC2H5, 0≦m≦10, lO≦l) and a polymerizable monomer or a divinyl compound. 2. The dyeing method according to claim 1, wherein the fabric is a petal- or leaf-shaped artificial flower fabric. 3. The dyeing method according to claim 1 or 2, in which a plurality of fabrics are stacked one on top of the other.