JP3205285B2 - Resin processing method of cellulosic fiber and fiber product processed by resin - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to resin processing of fibers, and more particularly, to resin processing of fibers having shrink-proof performance.

[0002]

2. Description of the Related Art Various types of resin processing for the purpose of preventing wrinkles and shrinkage of clothing and bedding products have been studied for a long time. However, resin adhesion and heating processing are the final steps of textile products, that is, knitting and weaving. It is carried out on products, fabrics and clothing sewn therefrom (Japanese Patent Application Laid-Open Nos. 8-284068 and 8-3259).
36, JP-A-9-87970). In addition, a shrink-preventing method of knit has been proposed in which a liquid containing a thermosetting resin and a catalyst is attached to a spun yarn, dried, knitted, and then heat-treated (Japanese Patent No. 2571721).

[0003]

In the method of processing the final product with resin for shrinkage prevention, the resin is processed individually for each product, so that the productivity is low and the processing cost is high. In the case where the spun yarn is subjected to resin processing to give shrinkage resistance, for example, in the case of performing resin processing using a cheese dyeing machine, a difference often occurs in the resin adhesion concentration between the inside and the outside of the cheese, and drying is also performed. After that, there is a possibility that adhesion between the yarns occurs.

[0004] If the drying time is economical, drying at a high temperature causes crosslinking of the resin and the fibers themselves become hard,
Troubles such as thread breakage occur during knitting. When resin processing is performed on the final product or spun yarn, the resin adheres only to the surface portion of the fiber bundle or fiber product composed of single fibers and does not adhere to the entire single fiber (individual fibers).
The biggest problem was that it was difficult to obtain a sufficient shrink-proof or shape-stabilizing effect. For this reason, if resin processing is performed at a stage closer to the raw material, that is, raw cotton, the productivity is high, and the shrinkage-preventing effect and the shape-stabilizing effect of the product can be sufficiently obtained.

However, in order to obtain a shrinkage-preventing effect or a shape-stabilizing effect by processing a resin into a cellulose fiber raw cotton, it is necessary to crosslink the processed resin with the cellulose fiber raw cotton. In order to carry out this crosslinking reaction, it is necessary to carry out a heat treatment at 100 ° C. or higher. Cause.

[0006]

SUMMARY OF THE INVENTION The present invention is directed to a method of improving the above-mentioned problems and processing a cellulosic fiber with a resin having shrinkproof properties, and a resin-processed fiber product. That is, [Claim 1] A thermo-crosslinkable resin is added to raw cotton of cellulosic fiber,
A resin processing method for a cellulosic fiber in which a working fluid containing a cross-linking catalyst and a spinning oil agent is adhered, dried, and then spun, or further knitted and sewn, and then heated and heat-set. [Claim 2] The adhesion amount of the thermo-crosslinkable resin to the fiber is 1 to
2. The method for processing a resinous cellulose fiber according to claim 1, wherein the amount is 10% by weight. [Claim 3] The thermally crosslinkable resin is a glyoxal resin,
3. The resin processing method for cellulose fibers according to claim 1, wherein the amount of adhesion to the fibers is 2 to 7% by weight. [Claim 4] Drying is carried out at 80 ° C to 100 ° C for 10 minutes to 30 minutes.
4. The resin processing method for a cellulosic fiber according to claim 1, wherein the heat treatment is performed at 110 to 170 [deg.] C. for 0.5 to 10 minutes. [5] The resin processing method for cellulose fibers according to any one of [1] to [4], wherein the spinning oil agent is nonionic or cationic. [Claim 6] A thermo-crosslinkable resin, a cross-linking catalyst and a spinning oil are added.
80 to 100 ° C.
The raw cotton of the cellulosic fiber manufactured by drying for 10 to 30 minutes . [Claim 7] A thermo-crosslinkable resin, a cross-linking catalyst and a spinning oil agent are provided.
The raw cotton of the wearing cotton fiber is
Raw cotton consisting of cotton fibers produced by drying for 0 to 30 minutes . [8] A heat-crosslinkable resin of a spun yarn of a surface layer of a cone or cheese in a finish winding mode of a cone or cheese-shaped cellulose spun yarn of the yarn spun from the raw cotton of the cellulosic fiber according to [6]. Adhesion amount (W1% by weight)
Of thermo-crosslinkable resin between spun yarn and inner layer (W2% by weight)
Is a cellulosic fiber having a ratio (W1 / W2) of 0.9 to 1.1. [Claim 9] In a cellulose fiber woven or knitted fabric, a part or all of the constituent yarns are made of yarn obtained by spinning raw cotton of the cellulosic fiber processed by the resin of claim 6, and the other constituent yarns are processed by a resin. A cellulosic woven fabric made of non-cellulosic fiber spun yarn, which expresses a lattice pattern, border pattern, or chambray pattern formed by dyeing and shading. [10] A cellulosic spun yarn obtained by blending at least 40% by weight of the resin-processed cellulose fiber raw cotton with at least 40% by weight of one or more of cotton fiber, rayon staple fiber and hemp staple fiber.

Further, according to the present invention, the resin is attached to the raw cotton before spinning, and heat treatment is performed after spinning or in the final product, so that the raw cotton is processed as compared with the case where the yarn is processed with resin. At the stage, since the fibers are different, it is easy to make the resin adhere very uniformly. Further, even if some adhesion unevenness occurs, it can be made uniform in the cotton mixing step during spinning.

Accordingly, in the final product, extremely uniform shrink-proof performance can be exhibited, and a durable product can be easily obtained.

[0009] Also, by blending with fibers without resin processing or blending with fibers with varying degrees of resin processing, products with various textures can be obtained. Further, a dyed pattern, etc., which has not been obtained in the past, can be easily obtained.

In the resin processing according to the present invention, a necessary amount is adhered by bringing an aqueous solution of a thermo-crosslinkable resin into contact with raw cotton of cellulosic fiber before spinning, and then dried at a temperature at which the cross-linkable resin does not cure. I do.

Then, after spinning, or further knitting, or further processing into a final product, it is heated to the curing temperature of the thermo-crosslinkable resin. By curing the adhered resin after spinning or after final processing, a decrease in fiber strength can be prevented, and troubles such as fiber breakage in spinning or a subsequent processing step can be reduced.

The thermo-crosslinkable resin used in the present invention is, for example, a melamine formalin-based resin, a urea formalin-based resin, or a glyoxal-based resin (dimethylol dihydroxyethylene urea-based resin) which is a polyfunctional condensation-type thermocrosslinkable resin. This is a cellulose reaction type resin. In particular, it is preferable to use a glyoxal resin which exhibits a small decrease in strength after adhesion and drying and has a remarkable shrinkproof effect after heat setting.

The crosslinking catalyst used in the present invention includes zinc nitrate, magnesium chloride, and organic amines as a metal salt for crosslinking the thermally crosslinkable resin.

The working fluid used in the present invention contains a spinning oil in addition to the thermo-crosslinkable resin and the cross-linking catalyst. As the spinning oil, a nonionic or cationic spinning oil is preferable because the crosslinking catalyst is cationic. By adding a precipitation inhibitor to the working fluid, an anionic spinning oil can be used.

The working liquid is used in an aqueous solution to uniformly adhere to the fiber.

The working fluid of the present invention may contain a fiber finishing agent such as a softening agent, a raising agent, an antistatic agent, an antibacterial agent or a leveling agent, if necessary.

The processing liquid is uniformly applied to the fibers by a dipping method, a spray method, a kiss roll method, or the like.

The degree of swelling of the untreated rayon fiber is 80 to 9
0%. In order to secure the shrinkage-preventing effect or the shape-stabilizing effect, the swelling degree is preferably set to 50% or less.
For this purpose, the amount of the crosslinkable resin to be attached is preferably 1% by weight or more based on the fiber as a pure resin content. However, if the resin adhesion amount is too large, the processability in the spinning process deteriorates, and
% By weight or less is preferred. More preferably, 2 to 7% by weight
Is appropriate.

The swelling degree of the untreated cotton fiber is 50%, and it is preferable that the swelling degree be 40% or less in order to make the shrinkage-preventing effect or the shape-stabilizing effect remarkable. Due to the ease of handling in the processing process, the amount of resin attached is limited.
The lower limit of the degree of swelling of the product is about 20%.

In the present invention, the degree of swelling is measured according to JIS.
Performed according to L1015.

As the drying conditions, it is preferable to carry out the treatment at a temperature and for a time at which the water used in the working fluid is efficiently removed and the thermosetting resin is not cured. For this purpose, it is preferable to perform a drying treatment at a drying temperature of 80 to 100 ° C. for 10 to 30 minutes.

After drying, spinning is carried out by a usual method. Alternatively, knitting is further performed to obtain a fabric. Alternatively, final processing such as sewing is performed to obtain a product. Thereafter, heat setting is performed by heating.

For industrially efficient heat setting, it is preferable to heat at 110 to 170 ° C. for 0.5 to 10 minutes. If the temperature is lower than 110 ° C., the curing of the resin does not proceed sufficiently, and the heating time is too long. Also,
If the temperature exceeds 170 ° C., the fiber strength may deteriorate, which is not preferable. More preferably, a temperature range of 120 to 150 ° C. is suitable.

If heat setting is performed before spinning, the fiber strength is reduced, and it becomes difficult to perform spinning industrially.

In the present invention, the resin-processed fiber is
In addition to making a product using 0%, it can be blended with other fibers. In this case, it is preferable to blend 40% or more of the resin-processed fiber in order to obtain the shrink-prevention or form-stabilizing effect. The blending can be performed in a blended cotton step, a continuous step or a spinning step.

In the present invention, after a working fluid containing a thermo-crosslinkable resin or the like is attached and dried, spinning is performed by a method used for ordinary cellulosic fibers. The spun yarn is usually transported, sold or used in the next step in the form of a cone or cheese. Cheese or cone of spun yarn obtained in the present invention,
Since the raw cotton is processed (attached and dried), it is uniformly processed throughout.

In the spun yarn of the present invention, which has been finished and wound into a cheese or cone shape, the adhesion amount of the thermally crosslinkable resin (W1% by weight) of the spun yarn of the surface layer and the adhesion of the thermally crosslinked resin of the spun yarn of the inner layer. The ratio (W1 / W2) of the amounts (W2% by weight) is 0.9 to 1.1. On the other hand, when resin processing is performed by contacting a processing liquid containing a thermo-crosslinkable resin with a cheese or cone-shaped spun yarn, the ratio of the amount of adhesion (W1 / W2) is 1.
It is difficult to obtain a product of 3 or more and 2 or less and 1.2 or less.

For dyeing cotton, rayon, etc., usually
This is performed using a reactive dye. The reactive dye is dyed by binding of the dye and the hydroxyl group of cellulose. In the present invention, since the heat-crosslinkable resin exerts a shrink-preventing effect by binding to the hydroxyl groups of cellulose, the number of hydroxyl groups that react with the dye decreases, and in a normal dyeing step, untreated cellulose-based fibers are used. Is stained lighter in comparison with

Therefore, by knitting and weaving a resin-processed fiber and an untreated fiber or a fiber having a different degree of resin processing, a knitted or woven fabric having a lattice pattern, a border pattern or a chambray pattern consisting of light and shade after dyeing. Can be easily obtained.

The cotton yarn not processed with resin shrinks by about 8% after dyeing processing, while the cotton yarn processed with resin according to the present invention shrinks by about 3%. Therefore, when fibers that have not been processed with resin and fibers that have been processed with resin are used as yarns of the woven fabric at regular intervals, irregularities can be formed on the woven fabric surface due to the difference in shrinkage of each yarn.

EXAMPLE 1 A scoured cotton raw cotton fiber (San Hawkin cotton) was spread to a thickness of about 2 to 3 cm, and a resin processing liquid was sprayed from above on a shower.

The composition of the resin processing liquid is a heat-crosslinkable resin Sumi
tex Resin NS-200 (glyoxal resin manufactured by Sumitomo Chemical Co., Ltd.) 222cc / L, crosslinking catalyst Sumitex
Accelerator MX (metal salt catalyst manufactured by Sumitomo Chemical Co., Ltd.) 100cc / L, spinning oil Marpoll 510C
(Nonionic spinning oil agent manufactured by Matsumoto Yushi Seiyaku Co., Ltd.) 10
It is an aqueous solution of cc / L. Using a roller squeezing machine and a centrifugal dewatering machine, the amount of sprayed liquid is 60% by weight based on the raw cotton.
Then, the mixture was dried at 80 ° C. for 10 minutes using a dryer.

The adhesion amount of the thermally crosslinkable resin after drying was 2% by weight. Table 1 shows the fiber properties of the cotton fibers to which the resin is attached and the raw cotton before the resin processing, together with the fiber properties after heat-setting by heating at 130 ° C. for 10 minutes for comparison.

[0033]

[Table 1] Properties of cotton fibers processed by resin

There was almost no deterioration in fiber properties due to the drying treatment, and no trouble occurred in the ordinary spinning process. The fibers subjected to the heat setting had a large deterioration in knot strength and the like, and many troubles occurred in the spinning process, so that a spun yarn could not be obtained.

[0035]

Example 2 In the same manner as in Example 1, a resin processing liquid was sprayed on the raw cotton fiber. Change the amount of spray liquid and squeezing conditions,
A drying treatment was performed at 0 ° C. for 10 minutes to obtain a fiber having a heat-crosslinkable resin adhesion amount of 5% by weight. Then 30 in normal spinning
No. 1 yarn was obtained. Using the spun yarn, a woven fabric having a warp density of 100 warps / inch and a weft of 70 yarns / inch was obtained by plain weaving and then heat-set at 130 ° C for 10 minutes. In order to confirm the shrinkproof performance of the woven fabric, the same woven fabric was manufactured using fibers that had not been subjected to resin processing, and after desizing was performed by a normal method, each was exposed under a hydrogen peroxide method, and then subjected to JIS L0217. After washing once in accordance with the -103 method, it was dried by hanging and drying. Table 2 shows the shrinkage after drying.

[0036]

[Table 2]

[0037]

Example 3 Rayon raw cotton fiber is heat-crosslinkable resin Sumite
x Resin NS-200 (glyoxal resin manufactured by Sumitomo Chemical Co., Ltd.), crosslinking catalyst Sumitex Accelerator MX
(Metal salt catalyst manufactured by Sumitomo Chemical Co., Ltd.), spinning oil solution Marpol 510C (Nonionic spinning oil agent manufactured by Matsumoto Yushi Pharmaceutical Co., Ltd.) 60: 16: 3 parts by weight of an aqueous solution, and then 80 ° C. For 20 minutes, and 6.95, 1.40, and 0.26% by weight were attached to the fibers, respectively. Physical properties of the fiber and untreated rayon, and 130 for comparison
Table 1 shows the physical properties of the fiber after heating at 10 ° C. for 10 minutes and heat setting.

[0038]

[Table 3] Results of resin processing for rayon raw cotton

There was almost no deterioration in the fiber properties due to the drying treatment at 80 ° C., and no trouble occurred in the ordinary spinning process. The fiber subjected to the heat setting at 130 ° C. had a large deterioration in knot strength and the like, and caused many troubles in the spinning process, so that a spun yarn could not be obtained.

The spun yarn was subjected to heat setting at 130 ° C. for 10 minutes for weaving. The resin-treated fabric and the untreated fabric were dyed, and the shrinkproof performance was compared with that of untreated rayon.

[0041]

[Table 4] Shrinkage difference by dyeing process

[0042]

According to the present invention, a heat-crosslinkable resin is adhered to a cellulose-based raw cotton before spinning, dried, and heat-treated after spinning or in a final product to obtain a uniform resin processing result. As a result, it is possible to exhibit an extremely useful shrink-proof performance, and it is possible to easily obtain products of various textures or dyed patterns by blending or weaving with unprocessed fibers.

──────────────────────────────────────────────────続 き Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) D06M 15/00-15/715

Claims (10)

(57) [Claims] 1. A thermo-crosslinkable resin is added to raw cotton of cellulosic fiber,
A resin processing method for a cellulosic fiber in which a working fluid containing a cross-linking catalyst and a spinning oil agent is adhered, dried, and then spun, or further knitted and sewn, and then heated and heat-set. 2. The heat-crosslinkable resin adheres to the fiber in an amount of 1 to 2.
2. The method for processing a resinous cellulose fiber according to claim 1, wherein the amount is 10% by weight. 3. The thermo-crosslinkable resin is a glyoxal resin,
3. The resin processing method for cellulose fibers according to claim 1, wherein the amount of adhesion to the fibers is 2 to 7% by weight. 4. Drying is carried out at 80 ° C. to 100 ° C. for 10 minutes to 30 minutes.
4. The resin processing method for a cellulosic fiber according to claim 1, wherein the heat treatment is performed at 110 to 170 [deg.] C. for 0.5 to 10 minutes. 5. The resin processing method for a cellulosic fiber according to claim 1, wherein the spinning oil is nonionic or cationic. 6. A thermo-crosslinkable resin, a cross-linking catalyst and a spinning oil agent are provided.
80 to 100 ° C.
The raw cotton of the cellulosic fiber manufactured by drying for 10 to 30 minutes . 7. A thermo-crosslinkable resin, a cross-linking catalyst and a spinning oil agent are provided.
The raw cotton of the wearing cotton fiber is
Raw cotton consisting of cotton fibers produced by drying for 0 to 30 minutes . 8. A heat-crosslinkable resin of a spun yarn of a surface layer of a cone or cheese, in a finish winding mode of a cone or cheese-shaped cellulose spun yarn of the yarn spun from the raw cotton of the cellulosic fiber according to claim 6. Adhesion amount (W1% by weight)
Of thermo-crosslinkable resin between spun yarn and inner layer (W2% by weight)
Is a cellulosic fiber having a ratio (W1 / W2) of 0.9 to 1.1. 9. A woven or knitted cellulosic fiber comprising part or all of the constituent yarns of which are spun from raw cotton of cellulosic fibers obtained by resin processing according to claim 6, and the other constituent yarns are processed by resin. A cellulosic woven fabric made of non-cellulosic fiber spun yarn, which expresses a lattice pattern, border pattern, or chambray pattern formed by dyeing and shading. 10. A cellulosic spun yarn obtained by mixing at least 40% by weight of the resin-processed cellulosic fiber raw cotton with one or more of cotton fiber, rayon staple fiber and hemp staple fiber.