JPH0536535B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for weaving textured yarn fabrics.

Generally, when producing textiles using synthetic multifilament fibers for clothing, a method has been used in which glue is applied to the warp threads. In the case of textured yarn fabrics, warp threads pasted with a size have been used as threads, but the pasting process has extremely low productivity and consumes a huge amount of energy, resulting in very high costs.
Furthermore, in recent years, a method has been industrially adopted in which so-called interlaced yarns, in which the single yarns of the yarns are interlaced through air treatment that eliminates the sizing process, are used as warp yarns.

However, even with interlaced yarns, reed wear is severe in waterjet looms and other looms. When the loom is operated at high speeds of 700 rpm or more, disadvantages have become clear, such as increased fuzzing of the filament and an increase in the number of loom stoppages. In addition, Japanese Patent Application Laid-Open No. 10313/1983 discloses the use of a mixture of synthetic sizing agent and oil agent in the gluing process, but this method has the problem of staining the gray fabric in the water jet room. It was hot. The present inventors completed the present invention as a result of intensive studies to solve the drawbacks of the above-mentioned sized yarn and interlaced yarn.

An object of the present invention is to provide a method for weaving textured yarn fabrics that allows a loom to be operated at high operating rates and high speeds at low cost. Another object of the present invention is to provide a weaving method that does not stain gray fabric even in a water jet room.

That is, the method of the present invention uses 30 to 65 parts by weight of acrylic resin and mainly fatty acid ester at the stage before weaving when weaving a textured yarn fabric in a water jet loom using false twisted textured yarn as the warp. 65 to 15 parts by weight of an oil agent, and 5 to 20 parts of wax selected from the group consisting of polyethylene wax, polyether wax, paraffin wax, and natural wax.
It is characterized in that the treatment agent is applied in a solid content of 3 to 7% by weight based on the weight of the fibers, and then dried with hot air.

Hereinafter, the above invention will be explained in further detail.
In the specification, "parts" indicate "parts by weight."

The acrylic resin of the treatment agent used in the present invention includes polyacrylic ester, polyacrylic acid,
Examples include polymethacrylic acid, polysodium acrylate, and polyacrylamide. Acrylic acid esters are particularly preferred, and those obtained by copolymerizing various components therewith are most suitable.

The proportion of acrylic resin in the processing agent is 30 to 65 parts,
Preferably, it needs to be within the range of 45 to 60 parts. If it exceeds 65 parts, the adhesiveness becomes too strong, causing adhesion between filaments, leading to poor opening on the loom table, and making it impossible to weave. Furthermore, if the amount is less than 30 parts, the filament will not have sufficient convergence, causing fuzz to form on the loom table, making it difficult to rotate the loom at high speed. The fatty acid ester-based oil agent used in the present invention has the fatty acid ester as its main component, and may also contain an anionic activator, a nonionic activator, an antistatic agent, etc. as appropriate. The proportion of fatty acid ester in the oil agent should be 60% by weight, and as the fatty acid ester, octyl palmitate, isooctyl palmitate, oleyl laurate, etc. are particularly suitable, and a mixture of these may be used. . The amount of the oil agent in the treatment agent is 65 to 15 parts, preferably 50 to 30 parts. If the content exceeds 65 parts, the effect of the acrylic resin will be weakened, and the objectives such as preventing reed wear and high-speed rotation of looms will not be achieved. In addition, if there are less than 15 copies,
The focusing effect between the filaments is too strong and adhesion of the filaments to each other occurs.

Waxes used in the invention include polyethylene wax, polyether wax, paraffin wax, natural wax, and the like.
The effect of adding wax is to improve the wear resistance of the filaments together, and prevent the generation of fuzz due to the rubbing of the filaments together on the loom table. Furthermore, it has the effect of preventing the treatment agent dripping from the machine base from splashing back and reducing contamination of the gray machine. The amount of the processing agent to be added is 5 to 20 parts, preferably 5 to 10 parts.If it is less than 5 parts, it will not be effective in preventing the generation of fluff, and if it exceeds 20 parts, the acrylic resin will have a focusing effect, and the oil agent will not be effective. inhibits the smoothing effect.

Next, the method of applying the treatment agent, the amount of attachment, etc. will be explained. The processing agent may be used in the form of an aqueous emulsion solution having a solid content of 10 to 20% by weight. The amount of adhesion is 3 to 7% by weight, preferably 4 to 7% by weight based on the weight of the yarn.
The amount is about 6% by weight. If the amount of the treatment agent is too small, the effect of the treatment agent will not be exhibited, and if it is too large, the filaments tend to adhere to each other. The appropriate place to apply the treatment is during warping, through an oiling roller in a warper, beamer, etc. After applying the treatment agent, the yarn bundle 200~
The filament is dried by blowing hot air at a temperature of about 80° C. at a flow rate of 2 to 10 m/sec within a range of 1 to 2 m to the thread running at 3300 m/min. If the filaments are not dried, the filaments tend to adhere to each other, causing poor opening on the loom table and making it impossible to weave.

Therefore, although a drying process is necessary in the present invention, if the treatment agent described in the present invention is used, a large-scale drying device and drying process, which are carried out with conventional sizing yarns, are not necessary. In addition, the winding speed is as fast as 200 to 300 m/min, which avoids the drop in productivity and the consumption of enormous amounts of energy, which is seen in the sizing method.

In the present invention, as described above, a treatment agent is applied to the false twisted yarn used for the warp, and after drying, it is placed in a water jet.The acrylic resin in the treatment agent focuses and coats the filaments. At the same time, the oil agent reduces the friction between the thread and the metal, prevents adhesion between the threads, and the wax prevents the generation of fuzz due to the rubbing of the filaments together, so water can be removed at an extremely high operating rate. It is possible to operate the et at high speed, and there is almost no occurrence of stains on the gray fabric. Furthermore, there is no need for large-scale drying equipment or drying processes as in the conventional sizing method, and the cost is extremely low.

EXAMPLES The present invention will be explained in more detail below with reference to Examples, but it goes without saying that the present invention is not limited to these Examples.

Example: When warping a false twisted yarn of polyester 75d/36f as a warp, 55 parts of an acrylic resin consisting of a copolymer of acrylic acid ethyl ester and methacrylic acid methyl ester, and oleyl laurate were added using a warper.
A treatment agent consisting of 35 parts of an oil agent containing 70% by weight and 10 parts of natural wax was made into a 20% aqueous emulsion solution and applied at a deposition amount of 6% by weight via an oiling roller.
Wind speed at 1m length for yarn running at 260m
It was dried by blowing hot air at 80°C at a rate of 5m/sec and rolled up onto a beam. After continuing beaming with a beamer, I set it in the water jet room at a rotation speed of 700 rpm.

The number of stoppages due to warp filament breakage was extremely low, once per day, and when the condition of the reed was observed after weaving 10,000 m, the degree of wear was extremely light, and continued weaving was possible. Furthermore, when the gray fabric was visually observed, there were no particularly noticeable stains or scratches on either the back or front surface.

Comparative Example 1 False-twisted yarn with a number of entanglements of 80/m due to fluid treatment was warped using a warper and beamer, and then placed in a water jet loom at a rotation speed of 700 rpm, but the warp yarn stopped due to filament breakage and fluff. The number of weaving cycles was as high as 4.7 times per day, and after weaving 10,000 m, the reeds were so worn that it was difficult to continue weaving with the same reed.

Comparative Example 2 In Example 1, a treatment agent consisting of 65 parts of an acrylic resin and 35 parts of an oil agent containing 70% by weight of oleyl laurate was similarly applied and weaving was carried out.

The number of stops due to warp filament breakage is
It was applied 0.5 times per day, but when the gray fabric was observed with the naked eye, black spots were seen on the back side.

Claims (1)

[Claims] 1. When weaving a textured yarn fabric in a water jet loom using false twisted textured yarn as the warp, 30 to 65 parts by weight of acrylic resin is added at the stage before weaving.
Solid content of a processing agent containing 65 to 15 parts by weight of an oil agent mainly composed of fatty acid esters and 5 to 20 parts by weight of a wax selected from the group consisting of polyethylene wax, polyether wax, paraffin wax, and natural wax. 3 to 7 relative to the fiber weight.
A method for weaving a textured yarn fabric, which is characterized by drying with hot air after imparting a weight percent.