JP4294744B2 - Fabric processing method including solvent-spun cellulose fiber - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, a fabric containing solvent-spun cellulose fibers is formed by pattern-printing a portion that prevents fibrillation and a portion that causes fibrillation, and a pattern is given by the difference between the whitened portion due to fibrillation and the portion that is not whitened. It is related with the processing method to do.
[0002]
[Prior art]
Conventionally, as a means for preventing fibrillation of a fabric containing solvent-spun cellulose fibers, there are a method of treating with a compound having an N-methylol-based fiber reactive resin or a glycidyl group, a method containing a cationizing agent, and the like. Has been used. However, these are only methods for suppressing the progress of fibrillation, preventing pilling, and preventing fibrillation during processing, and the processing methods are mainly padding and exhaustion. However, there is no method for producing a fibrillated portion and a fibrillated-prevented portion in a pattern by a printing technique.
[0003]
[Problems to be solved by the invention]
The present invention has been made in view of such a situation, and forms a fibrillation preventing portion and a portion causing fibrillation on a cloth containing solvent-spun cellulose fibers by a printing technique, and a whitened portion and a non-whitening portion due to fibrillation are formed. The object is to obtain a processing method for imparting a pattern due to a difference in parts.
[0004]
[Means for Solving the Problems]
The invention achieves the above-mentioned object, and has the following configuration. That is, the present invention provides a sizing agent by providing a process with a fiber- reactive resin in a pre-process or a post-process of a process of printing a fabric containing solvent-spun cellulose fibers in a pattern with an alkali-adjusted sizing agent. The gist of the present invention is a method for processing a fabric containing solvent-spun cellulose fibers, characterized in that the pH of the resin portion on which is printed is adjusted to the alkali side and then fibrillation is performed.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described in detail below.
In the present invention, a cloth containing solvent-spun cellulose fibers is used as the work cloth. Solvent-spun cellulose fiber is a regenerated cellulose fiber obtained by dissolving pulp in N-methylmorpholine-N-oxide, filtering to remove the insufficiency, and spinning it. Compared to ordinary viscose rayon, it is polymerized. High degree of crystallinity, high degree of orientation, high strength, low elongation, and alkali resistance.
Fabrics such as woven fabrics, knitted fabrics and nonwoven fabrics containing such solvent-spun cellulose fibers are used in the present invention.
The content of the solvent-spun cellulose fiber may be 100%, but is preferably at least 50% or more.
[0006]
Other fibers mixed with solvent-spun cellulose fibers include regenerated cellulose fibers such as rayon, cupra, polynosic, and high-wet modulus rayon, natural fibers such as wool and silk, and synthetic fibers such as nylon, polyester, and acrylic. However, the proportion of other fibers used here is desirably 50% or less. If it exceeds 50%, the mixed fibers have a small fibrillation effect, so that a significant difference between the fibrillated portion and the non-fibrillated portion hardly appears, and the pattern tone processing effect of the present invention becomes poor.
[0007]
In the present invention, the above-mentioned fabric is used to print the paste adjusted to be alkaline on the surface in a pattern.
Examples of the alkali agent used herein include sodium hydroxide, sodium bicarbonate, sodium bicarbonate, and the like. Examples of the paste used in combination with alkali include sodium alginate, starch, CMC, PVA, natural rubber-based paste, and the like. Is mentioned. As for the amount of alkali used, it should be used in the range of 0.1 to 50% of the weight of the total paste, but it is necessary to minimize excessive strength reduction and the difference in feel between the printed part and the unprinted part. is there.
As a printing method, either normal mechanical printing method or manual printing method may be used. In the case of mechanical printing method, roller printing, screen printing, etc. are used. In the case of manual printing method, This is done by screen printing or pattern printing.
The print pattern may be any pattern such as a flower pattern, a lattice pattern, a checkered pattern, a stripe pattern, a polka dot pattern, or a stripe pattern, and is not particularly limited in the present invention .
[0008]
After printing the alkali, dry it. Drying is performed at 80 to 120 ° C. for about 0.5 to 2 minutes .
In the full Iburiru treatment, washers, using a jet dyeing machine or the like, carried out at about room temperature to 150 DEG ° C., until about fibrillation effect to the portion to cause fibrillation exits, the process of about 30 minutes to 5 hours .
[0009]
In the method of the present invention, a fibrin-reactive resin treatment process can be added before or after the pattern printing process using an alkaline paste, and by adding this process, the pattern of the present invention is formed more clearly. be able to.
When the fibrin-reactive resin treatment is performed in the previous process of the pattern printing process, the fibrin-reactive resin process is performed in the order of the fibrin-reactive resin treatment process → the alkaline paste processing pattern print process → the fibrillation process When the treatment process is performed in a subsequent process, the pattern is printed in the order of an alkaline paste pattern printing process → a fiber-reactive resin treatment process → a fibrillation process.
[0010]
In the fibrin-reactive resin treatment step, treatment is performed using an aqueous solution containing a fibrin-reactive resin.
The fibrin-reactive resin includes N-methylol-based fibrin-reactive resin and compounds containing a glycidyl group. Examples of the N-methylol-based fibrin-reactive resin include dimethylol ethylene urea, dimethylol propylene urea, Examples thereof include dimethylol dihydroxyethylene urea, dimethylol dimethoxyethylene urea, dimethylol uron, and dimethylol triazine.
Examples of the catalyst used in combination with the N-methylol-based fiber-reactive resin include organic amine salts and metal salts, metal salts such as magnesium chloride, zinc nitrate, zinc borofluoride, magnesium nitrate, and zinc chloride, and organic acids. it can.
[0011]
Examples of the compound having a glycidyl group used in the present invention include diglycidyl ether of glycol, di- and polyglycidyl ether of polyol, and diglycidyl ester of dicarboxylic acid.
The applied amount of the aqueous solution containing the fibrin-reactive resin is suitably in the range of 0.5 to 20% by weight with respect to the fiber weight, and the amount used depends on the required degree of suppression of fibrillation. decide.
As a method for applying an aqueous solution containing a fibrin-reactive resin to a fabric, it may be applied by a generally known ordinary method, but a padding method is preferred in practice.
[0012]
After applying the treatment agent, dry it. Drying is performed at 80 to 160 ° C. for 0.5 to 3 minutes.
When the fiber reactive resin treatment is performed in the previous process of the pattern printing process with the alkaline glue, the amount of alkali used is 0.01 to 10% of the weight of the total glue in the subsequent pattern printing process of the alkaline glue. The fiber-reactive resin is reacted with cellulose by performing a heat treatment at 120-200 ° C. for about 0.5-3 minutes after drying, and the fiber-reactive resin at the pattern print portion of the alkaline paste. Suppresses the reaction between cellulose and cellulose.
[0013]
Even when the fiber reactive resin treatment is performed after the pattern printing process with the alkaline glue, the amount of alkali used in the pattern printing process of the alkaline glue ranges from 0.01 to 10% of the weight of the total glue. The heat treatment after drying may be omitted, and the heat treatment may be performed at 110 to 220 ° C. for 0.5 to 5 minutes after drying in the fibrin-reactive resin treatment step.
As described above, by forming a fibrillation-preventing portion and a fibrillation portion on a fabric containing solvent-spun cellulose fibers and performing fibrillation treatment, the pattern of the fibrillated portion that has been markedly whitened and the non-fibrillated portion that has not been whitened is determined. Can be applied to fabrics containing solvent-spun cellulose fibers.
The present invention is configured as described above.
[0014]
[Action]
In the present invention the above method mentioned, when the cellulose-reactive resin processed fabric containing solvent-spun cellulose fiber in the previous step or later step of the pattern printing step with alkaline sizing agent, generally, amorphous regions of the cellulose molecule is crosslinked Although fibrillation due to friction under swelling conditions is suppressed, the crosslinking of the fibrin-reactive resin is expressed on the acidic side, not on the alkaline side, and thus adjusted to alkaline. by printing the sizing agent to handle tone on or underneath, idea to adjust the pH of the resin portion on the alkaline side, the print portion thereof becomes a portion to cause fibrillation without resin crosslinking, the difference in their Will appear as a handle.
[0015]
【Example】
Next, the present invention will be described more specifically with reference to examples.
Example 1
Providing a solvent-spun cellulose fibers finish stained in the normal way (lyocell) 100% of the 50 fastest single yarn Tsukai fabric loan (warp density 100 yarns / inch, weft density 90 yarns / inch), the following prescription 1 to After applying the fiber-reactive resin treatment solution shown in (1) by a padding method with a pickup of 70%, drying was carried out at 100 ° C. for 1.5 minutes.
Formula 1
Sumitex Resin NS-19 100g / liter (Sumitomo Chemical Co., Ltd., Glyoxal resin)
Sumitex Accelerator X-110 30g / L (Sumitomo Chemical Co., Ltd., metal salt catalyst)
[0016]
Next, using a screen printing machine, an alkaline printing paste of the following formulation 3 was printed on this fabric in a polka dot pattern, followed by drying at 100 ° C. for 2 minutes using a tenter.
Formula 2
Sodium alginate (5%) 50 parts NaOH (flakes) 5 parts Water 45 parts Thereafter, soaping was performed with a nonionic surfactant at 100 ° C. for 10 minutes according to the soaping conditions of a normal printing process.
Here, using a washer, a fibrillation treatment was performed at a bath ratio of 1:30 at 60 ° C. for 1 hour, and then drying at 100 ° C. for 2 minutes, thereby producing a polka dot pattern according to the present invention. A processed fabric was obtained.
[0017]
Example 2
Prepare a textile loan (100 warps / wheat, 90 wefts / w) with 50% single yarn of solvent-spun cellulose fiber (lyocell) dyed and finished by a normal method, using a screen printing machine This was printed in a striped pattern using a printing paste having an alkali of the following formulation 4 and then dried at 100 ° C. for 2 minutes using a tenter.
Formula 3
Sodium alginate (5%) 50 parts NaOH (flakes) 5 parts Water 45 parts
Next, using the fiber-reactive resin treatment solution shown in the following prescription 5, after applying to the fabric to be processed by a padding method with a pickup of 70%, drying at 100 ° C. for 1.5 minutes and 160 ° C. × 2 minutes The heat treatment was performed.
Formula 4
Denacol EX-851 100 g / liter (manufactured by Nagase Kasei Co., Ltd., water-soluble epoxy resin)
Smitex Accelerator KX 10g / L (Sumitomo Chemical Co., Ltd., metal salt catalyst)
Subsequently, soaping was performed at 100 ° C. for 10 minutes with a nonionic surfactant in accordance with soaping conditions in a normal printing process.
Here, by using a washer, a fibrillation treatment was performed at a bath ratio of 1:30 at 60 ° C. for 1 hour, and drying was performed to obtain a striped pattern-like processed cloth according to the present invention.
[0019]
【The invention's effect】
According to the present invention, it is possible to give a remarkable pattern due to the presence or absence of fibrils to a cloth containing solvent-spun cellulose fibers.

Claims (1)

Resin on which glue is printed by providing a process with a fiber- reactive resin in the pre-process or post-process of the process of printing a fabric containing solvent-spun cellulose fibers with a paste adjusted to be alkaline. A method for processing a fabric containing solvent-spun cellulose fibers, characterized in that the pH of the part is adjusted to the alkali side and then fibrillation treatment is performed.