JPS62299579A - Method for sizing yarn - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] 3. Detailed description of the invention The present invention relates to a method for sizing yarn.

For yarn-dyed and yarn-bleached towels, the threads include ground warp, top warp, and weft, and in the case of ground warp, single yarn.

Since strength cannot be obtained with this sizing method, weaving properties are improved by using double yarns and sizing mainly with wheat starch, similar to the upper warp or weft yarns, to reduce fluff and supplement the strength of the yarn. I'm letting you do it. However, in this conventional cheese or beam-shaped thread gluing method, wheat starch, an oil agent, and a synthetic gluing agent are used in combination, so there is a lot of time required to heat and gelatinize the wheat starch as a preparatory step. Also, since the paste is mainly wheat starch, high temperature gluing [80°C or higher] is required.

In addition, wheat starch has low strength and requires increasing the treatment bath concentration to increase the adhesion, which results in a large adhesion to the cheese or the inner, middle, and outer yarns of the beam shape. Differences in quantity directly result in differences in texture, which is a negative factor in weaving properties and products. Further, since the middle layer is the most difficult for glue to penetrate and adhere, and sufficient abrasion resistance cannot be obtained, this sizing method cannot cope with the sizing of threads that require jlF# abrasion force.

In addition, high-strength synthetic glues 1, such as polyvinyl alcohol, carboxymethyl cellulose, and polyacrylic esters, may be used in combination, but since they are water-soluble,
It does not adhere well to threads and is not as effective despite its high price.

The present inventors have arrived at the present invention as a result of intensive research to solve these problems. That is, the present invention provides cheese or beam-shaped yarns with a glue containing one or more cellulose derivatives selected from methylcellulose, methylhydroxyethylcellulose, hydroxypropylcellulose, methylhydroxypropylcellulose, and ethylhydroxyethylcellulose. The present invention provides a method for gluing cheese or thread in a beam shape, which is characterized by treatment with an aqueous solution of an agent.

As the cellulose derivative used in the present invention, one or more types can be selected from methylcellulose, methylhydroxyethylcellulose, hydroxypropylcellulose, methylhydroxypropylcellulose, and ethylhydroxyethylcellulose.

Although these cellulose derivatives are soluble in cold water.

It is generally well known that hot water has the property of not dissolving due to the three-point phenomenon, but there is no application that utilizes this property, and it is difficult to utilize this property when preparing an aqueous solution. In fact, it is an obstacle in terms of application.

The yarn sizing method of the present invention uses this three-point phenomenon to perform sizing. As for the processing method.

First, the cellulose derivative is completely dissolved in cold water (below 40 degrees Celsius), a smoothing oil is added to make the treatment bath uniform, and the thread to be sized (cheese, beam shape) is set and the treatment bath is circulated. The bath is heated to 60°C. By raising the temperature to 60°C, the solubility of these cellulose derivatives in water decreases and adsorption to the threads is promoted, and most of the cellulose derivatives are completely adsorbed to the threads, and after processing, Almost no residue remains in the treatment bath.

In the present invention, no heating is required to prepare the size solution into a solution, and the size solution can be prepared in a short time.

In addition, since the processing temperature is low (60° C.), there is little discoloration of the dyed yarn, and there is little loss of fastness or change in hue.

Due to its high abrasion resistance, it is possible to use single yarn as the ground warp for towels. Also, double threads for ground stitching and upper warp threads.

For weft yarns, it has excellent drying properties due to low concentration treatment.

The texture of the sized yarn is softer than wheat starch.

It has extremely excellent advantages in that the difference in texture between the inner, middle, and outer layers is small, the middle layer has high wear resistance, and no sizing agent components remain in the residual bath after treatment.

The present invention will be specifically explained below using examples.

Examples 1 to 2/Comparative Example The glue components shown in Table 1 were mixed according to each glue preparation method.
GL adjustment, cotton yarn (20 count single yarn) upper warp for towels 18
0 kg of cheese was pasted (bath ratio 1:10).

(1) Size liquid adjustment Examples 1 to 2 Hesses force MC400 (product name, manufactured by Daiichi Kogyo Seiyaku Co., Ltd., methylcellose 2% aqueous solution viscosity 40Ocps product) in hot water (80°C or higher) 201, or hesses force MHPC50
(Daiichi Kogyo Seiyaku Co., Ltd., product name: Methyl hydroxypropylcellose 2% aqueous solution viscosity 50 cps product) was added in the prescribed amount listed in Table 1 and dispersed. Activate the liquid circulation pump in [Put Fish 15001] and add the glue dispersion to dissolve the glue [
By lowering the temperature of the sizing agent dispersion, the sizing agent dissolves], and then an oil agent is added to prepare a uniform treatment bath.

■Comparative example Pour water into a size liquid adjustment tank, add a predetermined amount of wheat starch, disperse, heat gelatinize while stirring [around 90℃ x 60 minutes], transfer to a size pot, add oil and start the treatment bath. Made by rA.

(2) Gluing conditions Cheese gluing machine [manufactured by Hisa Chikara Co., Ltd.] Gluing temperature and time (a) Start from below 40°C and raise the temperature to 60°C in-out for 30 minutes (b) 80°C in-out 30 minutes (3) Dry blast conditions Hot air suction dryer Temperature 120°C Out-in 5 minutes In-out (a) 60 minutes (b) 75 minutes The obtained sized yarn (cheese) was sized under the following conditions. The amount of adhesion and conjugation strength were measured. In addition, the paste was sampled at the following locations and its concentration was measured. The results are shown in Table 1.

(4) Adhesive amount of glue: 1% caustic soda, 1% oxidized desizing agent, and Noigen SS [nonionic surfactant manufactured by Dai-Kogyo Seiyaku Co., Ltd.] 0.5%
Using a desizing scouring bath consisting of
The size was determined by a desizing method in which the sample was treated at 90° C. for 1 hour and then washed with running water for 1 hour.

(5) Coupling Force A test was conducted using a TM-type table resultant force tester under the conditions of a load of 600 g and 710 pieces and an angle of 116°, and the number of frictions until the glued yarn broke was determined.

(6) Sizing solution sampling location ■ Solution with only sizing agent ■ Before treatment [mixed solution of sizing agent and oil agent] ■ Processing solution [residual bath after cheese sizing] The sizing yarn is used as the upper warp, and the A terry cloth was obtained by weaving under the following conditions. Table 1 shows the results of the weavability and texture of the towel obtained under the following conditions.

(7) Weaving conditions Finished size 62 x 137 cm Thread usage Ground warp 40/2 Upper warp 20/1 Weft 20/1 Reel, 55 feathers/size Pile ratio 5 times 1 hair (8) Weaving properties Those with no pilling were indicated as O1, those with a little amount of pilling were indicated as 0, those with a lot of pilling were indicated as Δ, and those with yarn breakage were indicated as ×.

(9) The softness of the towels was evaluated by five people based on their touch.

Examples 3 to 4 A size solution of 18001 was prepared by dissolving the size liquid components shown in Table 2 in water, and was used to size 180 kg of terry cloth warp made of No. 20 single cotton yarn [bath ratio l: 10] in Example 1
Various tests were carried out in the same manner as in Examples 1 and 2 under the same conditions as in -2. The results are shown in Table 2.

Claims (1)

[Claims] Treating a cheese or beam-shaped yarn with an aqueous sizing solution containing one or more cellulose derivatives selected from methylcellulose, methylhydroxyethylcellulose, hydroxypropylcellulose, methylhydroxypropylcellulose, and ethylhydroxyethylcellulose. A method of gluing threads using a cheese or beam shape.