JP7054243B2 - Manufacturing method of textile products - Google Patents

Description

The present invention relates to a method for producing a textile product. Specifically, the present invention is a textile product in which a fabric is formed from a composite twisted yarn containing a first yarn and a second yarn different from the first yarn, and the first yarn is dissolved from this fabric. Regarding the manufacturing method of.

Conventionally, a fabric is formed from a first yarn and a composite twisted yarn containing a second yarn different from the first yarn, and the first yarn is dissolved and removed to produce a textile product having excellent light weight. Is being done.

For example, Patent Document 1 proposes a method for producing a textile product in which a fabric is formed from a composite twisted yarn of a water-soluble yarn soluble in water and a spun yarn, and then the water-soluble yarn is dissolved in water to remove the fabric. ..

Japanese Unexamined Patent Publication No. 2007-332506

Impurities are attached to the fabric before dyeing, but if a water-soluble yarn is used as the first yarn, the water-soluble yarn dissolves before the impurities are removed in the glue removal step for removing the glue attached during weaving. Resulting in. In this case, the shape and properties of the second yarn are not stable. Therefore, it is not possible to sufficiently secure the quality such as the texture and water absorption of the textile product.

The present invention has been made in view of the above points, and an object of the present invention is to provide a method for producing a textile product having not only excellent lightness but also excellent quality.

In the method for producing a textile product according to the present invention, the first yarn which is insoluble in water and soluble in an alkaline solution and the first yarn which is insoluble in both water and an alkaline solution and has a twist number of T (unit: times / 2.54 cm). When the cotton count is S (unit: count), the second yarn represented by K = T / √S and having a twist coefficient of 3 or more is included, and the first yarn and the second yarn are twisted together. It is a pile fabric containing a warp, a weft, and a pile yarn, forming a composite twisted yarn which is a yarn, and at least the pile yarn forms a fabric in which the composite twisted yarn is formed, and the fabric is immersed in an alkaline solution and contained in the fabric. The first yarn in the dough is removed from the dough by completely dissolving the first yarn in the dough, and after the first yarn in the dough is dissolved in the alkaline solution, the pile in the dough. The thread is twisted.

In the method for producing a textile product of the present invention, it is possible to produce a textile product having not only excellent lightness but also excellent quality.

FIG. 1 is a schematic cross-sectional view showing a part of a fabric of a textile product according to an embodiment of the present invention. FIG. 2 is a schematic view showing an example of a printing machine according to an embodiment of the present invention. FIG. 3A is a schematic plan view showing another example of the printing machine of the same as above. FIG. 3B is a schematic side view showing another example of the printing machine of the same embodiment. FIG. 4A is an enlarged photograph of a cross section of a composite plying containing an alkaline easily soluble fiber after a steam setting process. FIG. 4B is an enlarged photograph of a cross section of a composite plying containing water-soluble fibers after a steam setting process. FIG. 5A is an enlarged photograph of a cross section of a composite plying containing an alkali-soluble fiber before an alkali treatment step. FIG. 5B is an enlarged photograph of a cross section of the composite fiber shown in FIG. 5A on an X-ray line. FIG. 5C is an enlarged photograph of the cross section of the composite plying shown in FIG. 5A after the alkali treatment step. FIG. 5D is an enlarged photograph of a cross section of the composite fiber shown in FIG. 5C along the YY line. FIG. 6A is an enlarged photograph of a pile of a textile product according to an embodiment of the present invention. FIG. 6B is an enlarged photograph of a pile of a textile product of a comparative example. FIG. 7 is a graph comparing the quick-drying rates of the textile product according to the embodiment of the present invention and the textile product of the comparative example.

Hereinafter, embodiments for carrying out the present invention will be described.

Examples of the textile product of the present embodiment include towels, washcloths, handkerchiefs, and the like, but the present invention is not limited to these, and any textile product such as clothes or curtains may be used as a material. In this embodiment, it is preferable that the textile product is a towel. When the textile product is a towel, the retention of the pile can be improved by treatment with an alkaline solution described later.

The textile product of the present embodiment is manufactured by using a composite plyed yarn containing a first yarn and a second yarn. The first yarn is a fiber that is insoluble in water and soluble in an alkaline solution. The second yarn is a fiber that is insoluble in both water and alkaline solutions.

(First thread)
When the first yarn is immersed in water at 90 ° C. or higher for 30 minutes, it is preferable that 95% by mass or more of the first yarn before immersion remains.

When the first yarn is immersed in an alkaline solution having a NaOH concentration of 3 to 15 g / L and a temperature of 90 ° C. or higher for 20 minutes or more, it is preferable that 85% by mass or more of the first yarn before immersion is dissolved. It is more preferable that 95% by mass or more is dissolved.

Examples of the fiber satisfying these conditions include a copolymerized polyester yarn and a polylactic acid yarn.

As the copolymerized polyester yarn, for example, when terephthalic acid and ethylene glycol are directly reacted to form an oligomer having an esterification rate of 80 to 95%, the methyl ester of the metal sulfonate group-containing isophthalic acid is added to the acid in the oligomer. After adding 2 to 3 mol% of the components, add the polyalkylene glycol in an amount of 10 to 13% by weight based on the polymer so that the product of the two is in the range of 26 to 30, and reduce the pressure. An example is a thread produced by polymerizing in. Specifically, as such a copolymerized polyester yarn, the trade name "Belpure (registered trademark)" manufactured by KB Seiren Co., Ltd. is exemplified.

Specifically, as polylactic acid yarn, the product name "Teramac (registered trademark)" manufactured by Unitika Ltd., the product name "Plastachi (registered trademark)" manufactured by Kuraray Co., Ltd., and the product manufactured by Toray Industries, Inc. Examples include the name "Ecodia (registered trademark)".

When dissolving the first yarn in an alkaline solution, if the concentration of the alkaline solution is too high, alkaline spots may occur on the textile product. Therefore, it is preferable that the first yarn can be dissolved in a low-concentration alkaline solution. Therefore, the first yarn is preferably a copolymerized polyester yarn that can be dissolved in a low-concentration alkaline solution.

The first yarn may be a spun yarn or a filament yarn (long fiber). When the first yarn is a filament yarn, the first yarn may be a monofilament yarn or a multifilament yarn. When the first yarn is a multifilament yarn, it may be a mixed filament yarn in which a plurality of types of filament yarns are combined, or may be a multifilament yarn composed of the same filament yarn. When the first yarn is a multifilament yarn, the number of multifilament yarns is preferably in the range of 12 to 24. The thickness of the first yarn is preferably in the range of 33 to 84 dtex. In this case, an appropriate void can be formed in the textile product, and the texture of the textile product can be improved.

(Second thread)
The second yarn is not particularly limited as long as it is a fiber that is insoluble in both water and alkaline solutions. Examples of the second yarn include natural fibers such as cotton and hemp. In the present embodiment, the second yarn is preferably made of cotton, the second yarn is more preferably a cotton yarn having a cotton count of 10 to 100, and particularly preferably a cotton yarn having a count of 20 to 80. ..

The second yarn may be a single yarn, a yarn in which a plurality of single yarns are aligned, or a combined twisted yarn in which a plurality of yarns are twisted. When the second yarn is a single yarn or a yarn obtained by pulling together a plurality of single yarns, the number of twists of the second yarn means the number of twists applied by spinning in producing the second yarn. When the second yarn is a combined twisted yarn in which a plurality of yarns are twisted, the number of twists of the second yarn means the number of twists of the plurality of yarns twisted in manufacturing the second yarn. Assuming that the number of twists is T (unit: times / 2.54 cm) and the cotton count is S (unit: count), the twist coefficient K represented by K = T / √S is 2.8 to 5. preferable. When the twist coefficient K is about 2.8, the texture of the textile product can be softened. In order to improve the hair loss rate, the twist coefficient K is preferably 3 or more. The thickness of the second yarn is preferably in the range of 33 to 84 dtex.

(Composite plying)
In the present embodiment, the composite twisted yarn is a yarn obtained by twisting a first yarn and a second yarn. The ratio of the first yarn to the composite twisted yarn is preferably in the range of 5 to 59% by mass, and more preferably in the range of 10 to 36% by mass. In this case, the twist of the first yarn can be untwisted by twisting the composite yarn. Further, the texture of the textile product can be sufficiently ensured by a method such as reverse twisting and then additional twisting.

The composite twisted yarn is manufactured by twisting the first yarn and the second yarn. The first yarn and the second yarn can be twisted together by, for example, a twisting machine. As the twisting machine, for example, a general-purpose twisting machine such as a double twister, a ring twister, and an up twister can be used.

In the present embodiment, the twisting direction of the composite twisted yarn (upper twist) is preferably the same as the twisting direction of the second yarn (lower twist). The twisting direction of the composite twisted yarn means the twisting direction in the twisting of the first yarn and the second yarn. That is, it is preferable that the twisting direction of the upper twist and the twisting direction of the lower twist are the same. In this case, the durability of the textile product produced from the composite plying can be improved.

In the present embodiment, it is preferable to twist the first yarn and the second yarn with a twist number within the range of 0.3 to 2.2 times the twist number of the first yarn. In this case, it becomes easy to manufacture a textile product from the composite twisted yarn, and the durability of the textile product can be improved.

(Manufacturing method of textile products)
In the present embodiment, the textile product is manufactured as follows.

First, the steam setting process is performed. In this step, the composite plying is exposed to steam to prevent the composite plying from being twisted. The steam setting step is performed at, for example, 92 ° C. for 30 minutes. In the present embodiment, since the first yarn is insoluble in water and soluble in an alkaline solution, the first yarn is not dissolved in the steam setting step. Therefore, in the steam setting process, the form of the composite twisted yarn can be stably maintained. On the other hand, when the first yarn is a water-soluble fiber, the first yarn melts in the steam setting process. Therefore, when the first yarn is a water-soluble fiber, the quality stability of the composite plying may be impaired in the steam setting process.

Next, when the composite ply is colored in advance, the composite ply is dyed (yarn dyeing step). In this step, all or part of the composite plying is dyed. When the first yarn is a water-soluble fiber, the first yarn is dissolved during the yarn dyeing step, so that the desired dyeing cannot be performed. Therefore, when the first yarn is a water-soluble yarn, it is necessary to use a dyed second yarn in order to color the composite plyed yarn. On the other hand, in the present embodiment, since the first yarn is insoluble in water and soluble in an alkaline solution, yarn dyeing of the composite ply yarn is possible. Therefore, the composite plying can be colored without using the dyed second yarn. That is, the composite plying can be dyed in advance according to the color of the final product. In addition, various design variations can be given to textile products.

The dyeing liquid used in the yarn dyeing step includes, for example, a slene dye. Slen dye is a dye that is insoluble in water and has a low affinity for fibers, but since the water-soluble leuco compound obtained by reduction in an alkaline reduction bath has an affinity for fibers, the fiber is in the form of a leuco compound. After being adsorbed on the fiber, it can be dyed by returning it to the original water-soluble dye on the fiber by oxidation. Since the slene dye has good coloring property with respect to the cellulose fiber, the second yarn in the composite fiber can be dyed well. Examples of slene dyes include Indanthren Yellow 5GF Col, Indanthren Yellow F3GC Col, Indanthren Yellow T-F3GC Col.Liq, Indanthren Gold. Yellow RK Col, Indanthren Orange3G Col, Indanthren Br. Orange GR Col, manufactured by Dyster. Indanthren Br. Orange RRTS Gran, Indanthren Scarlet GG Col, Indanthren Br. Red LGG Col, Indanthren Red FGL Col, Indanthren Red FBB Col, Indanthren Red T-FBB Col.Liq, Indanthren Br. Pink R Col, Indanthren Red Violet RRN Col .01, Indanthren Bordeaux ARR Col, Indanthren VioletB Col, Indanthren Br.Violet 3B Col, Indanthren Br. Blue RCL Col, Indanthren Blue RS Col, Indanthren Blue BC Col, Indanthren Blue CLF Col, Indanthren Br. Green FFB Col.BB, Indanthren Olive Green B Col, Indanthren Olive MW Col, Indanthren Olive TCol, Indanthren Brown BR Col, Indanthren Brown LBG Col, Indanthren Dark Blue DB Col, Indanthren Navy Blue G Col, Indanthren Navy Blue SR-N Col, Indanthren Navy Blue T-RR Col.Liq, Indanthren Gray 5607 Col, Indanthren Gray NC Col, Indanthren Di Black RB Col, Indanthren Black BB Col, Mikethren Yellow GCN S / F U / C, Mikethr en Yellow 3GL S / F 02, Mikethren Gold.Orange G S / F, Mikethren Violet FFBN S / F 01, Mikethren Blue BC S / F 01, Mikethren Blue BCS / F H / C 01, Mikethren Br. Green FFB S / F, Mikethren Olive T S / F 01, Mikethren Olive TS / F H / C 01, Mikethren Brown GS S / F E / C 01, Mikethren Brown G S / F 01, Mikethren Brown BRS / F 01, Mikethren Gray CL. BR S / F # 400 01, Mikethren Gray HRB S / F 01, Mikethren Gray MS / F 01, Mikethren Gray HRB S / F U / C 01, Mikethren Di Black RB S / F E / C 01, etc.

In the yarn dyeing step, the composite plying is dyed, for example, as follows. First, a leuco dye is produced by reducing the slene dye dispersed in water. Next, the leuco dye is adsorbed on the composite plying yarn and oxidized to return to the water-insoluble dye. Next, the composite plying is soaped with warm soap or the like.

In the case of hazy dyeing, the undercoating agent is attached to the composite plying after the dyeing step (undercoating step). The undercoat may be attached to all composite plyings or to some composite plyings. In this step, the composite plying is immersed in a dyeing solution containing an undercoating agent (dyeing), or the composite plying is applied with a brush (drawing). In the present embodiment, since the first yarn is insoluble in water and soluble in an alkaline solution, the composite twisted yarn can be under-immersed. On the other hand, when the first yarn is a water-soluble fiber, the first yarn is dissolved in the undercoating step, so that the undercoating process of the composite twisted yarn is difficult.

The dyeing liquid containing the undercoating agent is prepared by containing the undercoating agent, funnel oil, caustic soda (NaOH), water (hot water at 60 to 70 ° C.) and the like. The concentration of each component in the dyeing solution is not particularly limited, and examples thereof include undercoating agents (naphthol ASs) 10 to 15 g / L, funnel oil 15 to 20 mL / L, and caustic soda 15 to 23 mL / L. The amount of the undercoating agent attached to the composite twisted yarn is not particularly limited, but is, for example, 1 to 10% owf, preferably 4 to 5% owf. The amount of caustic soda attached to the composite plying is not particularly limited, but is, for example, 1 to 10% owf, preferably 4 to 5% owf. In addition, the unit "owf" of the adhering amount indicates the ratio of the adhering mass (or caustic soda) of the undercoating agent to the unit mass of the composite plying to which the undercoating agent (or caustic soda) is attached. For example, when the amount of the undercoating agent adhered is 5% owf, 5g of the undercoating agent adheres to 100 g of the composite plying.

Next, a warping step is performed. In this step, a warp is used to arrange the required number, length, and tension of warp, weft, pile yarn, and the like. The fabric of this embodiment includes a composite plyed yarn. In the present embodiment, it is preferable that at least the pile yarn is a composite twisted yarn, and it is preferable that all of the warp yarn, the weft yarn and the pile yarn are composite twisted yarns. This makes it possible to improve the water absorption, texture, bulkiness, etc. of the textile product.

Next, the weaving process is performed. In this step, the warp, weft, and pile yarn are woven to prepare a dough. When the textile product is a towel, the fabric is made by weaving warp, weft and pile yarn. The fabric in this case is a pile fabric containing warp, weft, and pile yarn. FIG. 1 shows an example of the dough. The fabric of FIG. 1 includes a plurality of warp yarns 101, a plurality of weft yarns 102, a plurality of first pile yarns 103, and a plurality of second pile yarns 104. That is, the pile yarn contained in the fabric includes a first pile yarn 103 and a second pile yarn 104. At the stage of making the dough using the composite fiber, the dough contains multiple kinds of impurities. Examples of impurities include glue, pectin, fiber-derived wax, natural impurities such as ash, wax for improving weavability, and dyes attached to warp or weft.

Next, the hazy dyeing process is performed. In this process, the colored glue is imprinted on the fabric. Printing on the fabric is performed with a roll printing machine or a screen printing machine. The roll printing machine prints by a transfer method. FIG. 2 shows an example of the roll printing machine 1. The roll printing machine 1 is provided with a plurality of guide rolls 2. Further, the roll printing machine 1 is provided with a transfer roll 4. A transfer plate 5 is provided on the outer surface of the transfer roll 4. The transfer plate 5 is formed of, for example, a rubber letterpress. A dipping roll 6 is provided below the transfer roll 4. The lower portion of the dipping roll 6 is immersed in the color glue 7 and arranged. In such a roll printing machine 1, the long cloth 3 is continuously advanced and conveyed in one direction while being guided by the guide roll 2. The dough 3 passes between the transfer roll 4 and the dipping roll 6 while being conveyed. At this time, the portion of the fabric 3 that becomes the terminal of the textile product is sensed, and the transfer roll 4 rotates in accordance with this timing. The rotation of the transfer roll 4 presses the dough 3 from above with the transfer plate 5, and the dough 3 comes into contact with the immersion roll 6. As a result, the color glue 7 adhering to the surface of the dipping roll 6 adheres to the dough 3, and the color glue 7 soaks into the dough 3. In this way, the fabric 3 is printed by the roll printing machine 1.

On the other hand, the screen printing machine 10 prints by a mimeograph method. FIG. 3 shows an example of the screen printing machine 10. The screen printing machine 10 is provided with a conveyor belt 11. A plurality of molds (screen molds) 12 are arranged above the conveyor belt 11. The plurality of print molds 12 are provided side by side in the traveling direction of the conveyor belt 11. The print mold 12 is formed by attaching a screen (gauze) 16 to a frame-shaped frame 15. Further, the screen 16 is provided with a mesh portion 13. The mesh portion 13 is formed in a desired shape (handle). A cage 14 made of rubber or the like is arranged above each print mold 12. The cage 14 is formed so as to be reciprocally movable in a direction orthogonal to the traveling direction of the conveyor belt 11. In such a screen printing machine 10, a long cloth 3 is placed on a conveyor belt 11 and continuously advances and conveyed in one direction. The fabric 3 passes under the print mold 12 while being conveyed. At this time, the portion of the fabric 3 that becomes the end of the textile product is sensed, and the cage 14 moves in accordance with this timing. The color glue 7 supplied onto the screen 16 of the print mold 12 due to the movement of the cage 14 passes over the mesh portion 13, and a part of the color glue 7 passes through the mesh portion 13. Then, the color paste 7 that has passed through the mesh portion 13 adheres to the fabric 3, and the color paste 7 soaks into the fabric 3. In this way, the fabric 3 is printed by the screen printing machine 10.

The color paste used in the hazy dyeing process contains naphthol dye. The naphthol dye (top pickling agent or color developer) reacts with the bottom pickling agent to form a water-insoluble dye on the composite plying and dye it. As the naphthol dye, either bases or salts can be used, but salts are used in consideration of stability and the like. Salts are compounds obtained by diazotizing bases. As the naphthol dye, C.I. I. A. D. C. 20 (Product name (hue classification) is blue BB salt), C.I. I. A. D. C. 13 (Product name (hue classification) is Scarlet R salt), C.I. I. A. D. C. 44 (trade name (hue classification) is yellow GC salt), C.I. I. A. D. C. 1 (Product name (hue classification) is Bordeaux GP salt), C.I. I. A. D. C. 2 (Product name (hue classification) is orange GC salt), C.I. I. A. D. C. 9 (Product name (hue classification) is red 3GL salt), C.I. I. A. D. C. 38 (Product name (hue classification) is black K salt), C.I. I. A. D. C. 3 (Product name (hue classification) is Scarlet GG salt), C.I. I. A. D. C. 118 (trade name (hue classification) is green BB salt), C.I. I. A. D. C. 48 (Product name (hue classification) is blue B), C.I. I. A. D. C. 35 (Product name (hue classification) is Varianmin Blue B), C.I. I. A. D. C. 41 (Product name (hue classification) includes violet B), dark blue LR (product name (hue classification)), brown RR (product name (hue classification)), red B (product name (hue classification)), etc. However, it is not limited to these. The above "CIADC" is a color index azoic diazo component (ColorIndexAzoicDiaz).
It is an abbreviation for o Component). The concentration of the naphthol dye in the color paste can be appropriately set according to the type of the naphthol dye, the shade of the color, the type and amount of the undercoating agent adhering to the dough, and the like, and is, for example, 1 to 30 g / L. It is preferably 1 to 25 g / L, more preferably 1 to 10 g / L, and even more preferably 1 to 10 g / L. The color glue may further contain water, a glue, a pH adjuster, and an anti-deterioration agent.

Next, a gluing step is performed. In this step, the glue is removed by decomposing the glue contained in the dough with a glue remover to reduce the molecular weight. When a water-soluble yarn is used as the first yarn, the first yarn is dissolved in the gelatin removal step. However, in the present embodiment, the first yarn is insoluble in water and soluble in an alkaline solution, so that the gelatin removal step is performed. The first thread does not dissolve. Examples of the gelatin remover include a glue remover, an oxidase remover and the like. As the degluing enzyme, for example, the trade name “Lactose ST Conch” (heat-resistant enzyme) manufactured by Rakuto Kasei Kogyo Co., Ltd. can be used. In particular, when the degluing enzyme is a heat-resistant enzyme, it can be used at a temperature of 80 ° C. or higher. Therefore, it is preferable that the gelatin remover contains a heat-resistant enzyme. When the gelatin removal enzyme is used, the concentration of the gelatin removal enzyme in the treatment bath is preferably in the range of 0.8 to 1.2 g / L. The treatment bath in the gelatin removal step may contain a surfactant, and may contain, for example, the trade name "Sunmol BH Conch" manufactured by NICCA CHEMICAL CO., LTD. The concentration of the surfactant in the treatment bath is preferably in the range of 0.3 to 0.7 g / L. The temperature of the treatment bath at the time of degluing is preferably in the range of 80 to 100 ° C. The treatment time at the time of degluing is preferably 30 to 60 minutes.

Next, a refining process is performed. In this step, natural impurities (contaminants) adhering to the dough are hydrolyzed or saponified with a refining agent to make them water-soluble, thereby removing the natural impurities. Examples of natural impurities when the second yarn is cotton yarn include pectin, fats and oils, waxes, proteins and the like. As the refining agent, for example, caustic soda or the like can be used. A refining aid (surfactant) may be used in combination with the refining agent. As the refining aid (surfactant), for example, Sunmol BH Conch manufactured by NICCA CHEMICAL CO., LTD. Can be used. The treatment bath in the refining step is preferably alkaline to the extent that the first yarn does not dissolve. For example, it is preferable that the treatment bath contains caustic soda at a concentration in the range of 1.5 to 2.5 g / L. Further, it is preferable that the treatment bath contains a refining aid at a concentration in the range of 0.5 to 1.5 g / L. The temperature of the treatment bath at the time of refining is preferably in the range of 60 to 100 ° C. In this case, it is possible to suppress the outflow of the dye from the dyed second yarn under an alkaline high temperature. The processing time of the refining step is preferably in the range of 80 to 100 minutes. Further, as the refining agent, enzymes such as pectinase, hemicellulase, xylanase, and exo-type cellulase may be used.

Next, the edge sewing process is performed. In this step, the edge stitching of the fabric obtained in the heat treatment step is performed by an oversewing machine or the like.

Next, a chlorine bleaching step is performed. In this step, for example, a treatment bath of sodium hypochlorite 12 g / L is used. The temperature of the treatment bath at the time of chlorine exposure is preferably normal temperature. The treatment time during chlorine exposure is preferably in the range of 100 to 200 minutes.

Next, a makeup bleaching step is performed. In this step, bleach is used to remove the pigment contained in the raw material. Examples of the bleaching agent include hydrogen peroxide, sodium chlorite, sodium hypochlorite, bleaching enzyme and the like. When hydrogen peroxide is used as the bleaching agent, a stabilizer, a pH adjuster, a fluorescent dye (for example, Hackol (trade name) manufactured by Showa Chemical Industry Co., Ltd.) or the like may be used in combination with hydrogen peroxide. When hydrogen peroxide is used as the bleaching agent, the treatment bath may contain hydrogen peroxide at a concentration of 6.0-10.0 g / L. The treatment bath may contain hydrogen peroxide and may not contain a stabilizer, a pH adjuster, a fluorescent dye, or the like. The temperature of the treatment bath at the time of bleaching makeup is preferably in the range of 60 to 100 ° C. The treatment time during makeup bleaching is preferably in the range of 80 to 100 minutes.

In addition, instead of the chlorine bleaching step and the makeup bleaching step, the osbon cold bleaching step may be applied. In this case, for example, DSC Fixer H Liquid manufactured by Daido Kasei Kogyo Co., Ltd. is 1.5 g / L, DSC Osbon U Conch 25 is 1.5 g / L, and DSC Osbon Catalyst MH25 is 4 g / L. A treatment bath in which caustic soda (sodium hydroxide) is 13.5 g / L and hydrogen peroxide is 2 g / L can be mentioned. The main component of "DSC Osbon U-conch 25" manufactured by Daido Kasei Kogyo Co., Ltd. is lactic acid. The temperature of the treatment bath is preferably in the range of 10 to 30 ° C. That is, it is preferable that the bleaching step is not high temperature bleaching but normal temperature bleaching (cold bleaching). The bleaching time in the bleaching step is preferably in the range of, for example, 5 to 60 hours, but the temperature is preferably raised for the last 30 minutes, and the temperature of the treatment bath at the time of raising the temperature is preferably 60 ° C. preferable. In the case of osbon cold bleaching, the temperature of the treatment bath can be lowered, so that the outflow of the dye from the dyed second yarn can be further suppressed.

In this embodiment, it is particularly preferable to dissolve the first yarn with an alkaline solution after the cosmetic bleaching step. In this case, since the first yarn is dissolved in a state where the glue, natural impurities and pigments contained in the fabric are removed, the physical or chemical influence on the fabric can be particularly suppressed, and the shape of the second yarn can be suppressed. , The properties can be particularly stabilized. Therefore, it is possible to particularly suppress a decrease in bulkiness of the textile product. The treatment bath used in the step of dissolving the first yarn with this alkaline solution (alkali treatment step) contains an alkaline agent. Examples of this alkaline agent include caustic soda, caustic potash, potassium carbonate, soda ash and the like. From the viewpoint of ease of alkaline treatment, cost and the like, the alkaline agent is preferably caustic soda. The concentration of the alkaline agent in the treatment bath is preferably in the range of 3 to 15 g / L, more preferably in the range of 8 to 12 g / L. In this case, the first yarn can be efficiently melted while suppressing the fading of the second yarn that has been dyed or hazy. In particular, when the concentration of the alkaline agent is in the range of 3 to 5 g / L, the fading of the second thread is unlikely to occur, and in the range of 5 to 10 g / L, the fading of the second thread is small and in the range of 10 to 15 g / L. Then, the fading of the second thread can be tolerated. Further, when the concentration of the alkaline agent is less than 3 g / L, the first yarn cannot be sufficiently dissolved and removed, and when it is more than 15 g / L, the fading of the second yarn cannot be tolerated. Further, in the present embodiment, the pile retention and quick-drying property of the textile product can be improved by the shrinkage action of the second yarn by using the alkaline solution for dissolving the first yarn. Further, when the concentration of the alkaline agent in the treatment bath is low, particularly when the concentration of the alkaline agent is 8 g / L or less, it is preferable to add a weight loss accelerator to the treatment bath. In this case, the first yarn can be sufficiently dissolved, the amount of the alkaline agent used can be reduced, and the dye can be suppressed from falling off. As this weight loss accelerator, for example, the product name DYK-1125 manufactured by Lion Specialty Chemicals Co., Ltd., which is a quaternary ammonium salt-based alkaline weight loss accelerator, and the product name Marceline manufactured by Meisei Chemical Works, Ltd. are used. can do. The concentration of the weight loss accelerator in the treatment bath is preferably in the range of 1 to 5 g / L.

Further, when the first yarn is a fiber made of a copolymerized polyester, polyvinyl alcohol (PVA) is not generated even if the first yarn is dissolved in an alkaline solution. The processing of this PVA requires a great deal of labor and cost. On the other hand, in the present embodiment, since the dissolution of the first yarn produces a substance having a smaller molecule than that of polyvinyl alcohol, wastewater treatment after the dissolution of the first yarn is easy.

Further, when the first yarn is dissolved and removed in the alkali treatment step, a change occurs between the initial number of twists applied to the composite twisted yarn and the number of twists after the first yarn is dissolved and removed. For example, when the second yarn is Z-twisted and the composite twisted yarn is Z-twisted, the number of twists after dissolution and removal of the first yarn is the sum of the number of twists of the second yarn and the number of twists of the composite twisted yarn. .. Therefore, depending on the number of twists of the second yarn and the composite twisted yarn, the yarn becomes a strong twisted yarn after the first yarn is dissolved and removed, and a fabric such as Yangyanagi (textured) can be formed.

Next, a wins cleaning step is performed. In this step, for example, continuous wins are used, and the washing is performed at a washing temperature of about 70 ° C. for a time of 20 to 30 minutes.

Next, a dyeing step is performed. In this step, the whole or part of the dough is dyed. If the entire dough is dyed, for example, soak the dough in a treatment bath containing a dye. The treatment bath in this case may contain, for example, a reactive dye, 10-100 g / L of Glauber's salt, and 5-60 g / L of soda ash. The concentration of the reactive dye is appropriately set according to the type of the reactive dye and the shade of color. The temperature of the treatment bath in this case is preferably in the range of 60 to 70 ° C. Further, it is preferable to take 30 minutes for raising the temperature and adding the drug, and 30 minutes for fixing the stain.

When the treatment bath used in the dyeing step contains a reactive dye, as a reactive dye, for example, as a reactive dye, for example, Procion Black PX-N Liq. 40% (Reactive Black8), Procedure Blue PX-5R Liq. 33% (Reactive Blue13), Procedure Brilliant Blue PX-3R Liq. 40% (Reactive Blue49), Procedure Brilliant Brown PX-2KR Liq. 25%, Procion Navy PX-2R Liq. 33% (Reactive Blue10), Procedure Navy PX-G Liq. 33% (Reactive Black39), Procedure Orange PX-RN Liq. 40%, Procedure Red PX-4B Liq. 33% (Reactive Red3: 1), Procedure Red PX-6B Liq. 33% (Reactive Red218), Procedure Yellow PX-6GN Liq. (Reactive Yellow95), Procedure Yellow PX-R Liq. 33%, Kayacion Black P-GS Liq. 40%, Kayacion Black P-NBR Liq. 40%, Kayacion Blue P-3R Liq. 40% (Reactive Blue49), Kayacion Blue P-GR Liq. 40% (Reactive Blue5), Kayacion Blue P-NFB Liq. 50%, Kayacion Brown P-BDN Liq. 33% (Reactive Brown8), Kayaction Brown P-N4R Liq. 33%, Kayacion Navy P-N2R Liq. 30%, Kayacion Orange P-G Liq. 20% (Reactive Orange 5), Kayacion Red P-4BN Liq. 25% (Reactive Red 3: 1), Kayacion Red P-BN Liq. 33% (Reactive Red24), Kayacion Scarlet P-NA Liq. 33%, Kayasion Turquoise P-3GF Liq. 33%, Kayacion Violet P-3R Liq. 33% (Reactive Violet1), Kayacion YelloW P-5G Liq. 33% (Reactive Yellow2), Kayacion YellowW P-N3R Liq. 33% (Reactive Orange99), Novacron Black P-GR Liq. Manufactured by Huntsman Co., Ltd. 40%, Novacron Black P-SG Liq. 40%, Novacron Black P-SGN Liq. 40%, Novacron Blue P-3R Liq. 40% (Reactive Blue49), Novacron Brown P-6R Liq. (Reactive Brown 11), Novacron Golden YelloW P-2RN Liq. 33% (Reactive Orange 12), Novacron Navy P-2R Liq. (Reactive Blue10), Novacron Orange P-2R Liq. 40% (Reactive Orange 13), Novacron Orange P-4R Liq. 40% (Reactive Orange 35), Novacron Red P-4B Liq. 33% (Reactive Red 3: 1), Novacron Red P-6B Liq. 33% (Reactive Red218), Novacron Red P-BN Liq. 33% (Reactive Red24), Novacron Turquoise P-GR Liq. 50% (Reactive Blue72), Novacron YelloW P-6GS Liq. 33% (Reactive Yellow95), Sumifix Supra Brill, manufactured by Sumika Tex Co., Ltd. Yellow 3GF 150% gran. , Sumifix Supra Yellow 3RF 150% gran. (Reactive Yellow 145), Supra Supra Yellow E-XF 150% gran. Sumifix Supra Brill. Red BSF 150% gran. , Sumifix Supra Brill. Red 3BF 150% gran. (Reactive Red 195), Supra Supra Red E-XF gran. , Sumifix Supra Red 4BNF 150% gran. , Sumifix Supra Ruby E-XF gran. , Supra Blue BRF 150% gran. (Reactive Blue221), Supra Supra Blue E-XF gran. , Sumifix Supra Navy Blue BF gran. (Reactive Blue222), Supra Supra Navy Blue 3GF 150% gran. , Sumifix Supra Navy Blue GNF gran. , Remazol Red Run, Remazol Yellow Run, Remazol Blue Run, etc., which are commercially available remazole dyes.

Next, a cleaning step is performed. In this step, for example, washing with water and washing with hot water are performed a plurality of times. For example, after washing twice with water at room temperature for 10 minutes, washing with hot water at 90 ° C. for 20 minutes twice, and then washing with water at room temperature for 10 minutes twice.

Next, a flexible process is performed. In this step, for example, a continuous wins is used, and if necessary, a treatment bath containing 1 g / L of a softener is used, and the washing is performed at a washing temperature of about 70 ° C. for a time of 20 to 30 minutes. As this softener, for example, the trade name "Royal Soft" manufactured by Yushi Kogyo Co., Ltd. can be used.

Next, a dehydration step is performed. In this step, a centrifugal dehydrator or the like is used.

Next, a drying step is performed. In this step, a tumbler dryer or the like is used, and the process is carried out under the conditions of, for example, a temperature of 80 to 100 ° C. and a time of about 25 minutes.

After that, textile products such as towels are manufactured through a hem sewing process and an inspection process.

The textile product of the present embodiment includes, for example, a portion dyed at the stage of composite plying, a portion subjected to hazy dyeing, and a portion subjected to dyeing.

In the above-mentioned manufacturing method of textile products, steam setting process, yarn dyeing process, undercoating process, warping process, weaving process, hazy dyeing process, degluing process, refining process, edge sewing process, chlorine bleaching process, cosmetic bleaching process , Alkaline treatment process, Wins cleaning process, Dyeing process, Cleaning process, Flexibility process, Hem sewing process, and Inspection process are performed in this order, but the process is not limited to this.

For example, the above-mentioned alkali treatment step may be performed after the gelatin removal step is completed. That is, the first yarn may be dissolved with an alkaline solution after the gelatin removal step is completed. In this case, since the first yarn is dissolved in a state where the glue adhering to the fabric is removed, the physical or chemical influence on the fabric can be suppressed, and the shape and properties of the second yarn are stabilized. Therefore, it is possible to suppress a decrease in bulkiness of the textile product.

For example, the above-mentioned alkali treatment step may be performed after the refining step. That is, after the refining step, the first yarn may be dissolved in an alkaline solution. In this case, since the first yarn is dissolved in a state where the glue adhering to the fabric and natural impurities are removed, the physical or chemical influence on the fabric can be suppressed, and the shape and properties of the second yarn can be suppressed. Therefore, it is possible to suppress a decrease in bulkiness of the textile product.

For example, it is not necessary to perform the yarn dyeing process. That is, it is not necessary to dye the composite plying in advance. The textile product in this case does not have to include the portion dyed at the stage of composite plying.

For example, it is not necessary to perform the under-pickling step and the hazy dyeing step. That is, it is not necessary to apply hazy dyeing. The textile product in this case does not have to include the hazy dyed portion.

For example, the dyeing step may not be performed. That is, it does not have to be dyed. The textile product in this case does not have to include the dyed portion.

Hereinafter, the present invention will be specifically described with reference to Examples.

(Examples 1 to 4)
First, a composite plyed yarn was produced by twisting the first yarn and the second yarn. As the first yarn, the trade name Belpure (registered trademark) manufactured by KB Seiren Co., Ltd. was used. The first yarn is a multifilament yarn, and the number of filaments is twelve. As the second yarn, a 20th cotton yarn having a twist coefficient K of 4.0 was used. The ratio of the first yarn to the composite twist was 10%. The second yarn was Z-twisted and the composite twisted yarn was S-twisted. The number of twists between the first yarn and the second yarn was 17.9 times / inch.

Next, the same steam setting process as described above was performed. The steam set conditions were 92 ° C. for 30 minutes. An enlarged photograph of the cross section of the composite plyed yarn before and after the steam setting process is shown in FIG. 4A. In FIG. 4A, (1) shows the first yarn and (2) shows the second yarn. As shown in FIG. 4A, in the composite plyed yarn of Example 1, no significant change was observed in the first yarn after the steam setting process.

Next, a part of the composite ply was yarn-dyed. The dyeing liquor used for yarn dyeing had a bath ratio of 1:20, and the slen dye Mikethen Blue BC s / f was 2.5% owf, caustic soda was 5 g / L, hydrosulfite was 6 g / L, and glucose was 2 g. / L, Uniperol Level P was contained at 0.1 g / L. In this yarn dyeing step, the composite twisted yarn was immersed in a dyeing solution at 60 ° C. for 30 minutes to dye the composite twisted yarn in blue.

Next, the same under-pickling step as above was performed. In this step, the composite plying was immersed in a treatment bath containing an undercoating agent. This treatment bath contained Naphthol AS-OL at 4-5% owf and caustic soda at 4-5% owf as a pickling agent. Here, "owf" means the ratio of the drug to 100 g of the composite plyed yarn.

Next, the same warping and weaving steps as described above were performed. In the weaving process, a pile fabric was formed by weaving warps, wefts, and pile yarns made of composite plyed yarns. The strength of the untreated dough was 2.5 N for warp and 3.5 N for warp. As the composite twisted yarn, the composite twisted yarn dyed in the above-mentioned yarn dyeing step and the undyed composite twisted yarn were used. For this reason, the fabric contained a pre-dyed portion and an undyed portion.

Next, the same hazy dyeing process as above was performed. The color paste used in this step contained blue BB salt at a concentration of 5 g / L as a naphthol dye, Scarlet R salt at a concentration of 15 g / L, and Bordeaux GP salt at a concentration of 13 g / L. Was there. The color paste was applied to a part of the undyed part of the fabric. For this reason, the fabric contained a portion that had been dyed in advance, a portion that had been dyed in dimness, and a portion that had not been dyed.

Next, the same degluing step as described above was performed. The treatment bath in this step contains the trade name "Lactose ST Conch" manufactured by Rakuto Kasei Kogyo Co., Ltd. as a heat-resistant enzyme at a concentration of 1.0 g / L, and is manufactured by NICCA CHEMICAL CO., LTD. As a surfactant. The trade name "Sunmol BH Conch" was contained at a concentration of 0.5 g / L. The temperature of the treatment bath was 90 ° C. and the treatment time was 45 minutes.

Next, the same refining step as above was performed. The treatment bath in this step contains caustic soda at a concentration of 2.0 g / L as an alkaline agent and 1.0 g / L of Sunmol BH Conch manufactured by NICCA CHEMICAL CO., LTD. As a refining aid (surfactant). It was contained at a concentration of L. The temperature of the treatment bath was 90 ° C., and the treatment time was 90 minutes.

Next, the same edge stitching steps as described above were performed in order.

Next, the same chlorine bleaching step as above was performed. The treatment bath in this step contained hypochlorous acid at a concentration of 12.0 g / L. The temperature of the treatment bath was room temperature, and the treatment time was 150 minutes.

Next, the same makeup bleaching step as described above was performed. The treatment bath in this step contains hydrogen peroxide as a bleaching agent at a concentration of 8.0 g / L, a stabilizer at a concentration of 0.4 g / L, and caustic soda at a concentration of 0.2 g / L. Was included. The temperature of the treatment bath was 90 ° C., and the treatment time was 90 minutes.

Next, the same alkali treatment step as described above was performed. In this step, the first yarn contained in the dough was dissolved. 5A and 5B show the composite plying before the alkali treatment, and FIGS. 5C and 5D show the composite plying after the alkali treatment. In FIGS. 5A to 5D, (1) shows the first yarn and (2) shows the second yarn. As shown in FIGS. 5A and 5B, the composite fiber before dissolution contains a first yarn (1) and a second yarn (2). On the other hand, as shown in FIGS. 5C and 5D, the melted composite ply yarn contains the second yarn (2) but does not contain the first yarn (1). This is because the first yarn was dissolved and the second yarn remained due to the alkali treatment of the composite fiber. The treatment bath in this step contained caustic soda at a concentration of 10.0 g / L, the temperature of the treatment bath was 95 ° C., and the treatment time was 30 minutes.

Next, the same wins cleaning step as described above was performed.

Next, the same dyeing step as above was performed. The treatment bath in this step contains Remazol Red Run at a concentration of 0.05 g / L, Remazol Yellow Run at a concentration of 0.12 g / L, and sodium carbonate at a concentration of 10 to 100 g / L as a reactive dye. Was contained, and soda ash was contained at a concentration of 5 to 60 g / L. The temperature of the treatment bath was 60 to 70 ° C. In the dyeing step, it took 30 minutes to raise the temperature and add the chemical, and 30 minutes to fix the dye. In the dyeing step, the undyed part of the fabric was dyed. For this reason, the fabric included a pre-dyed portion, a hazy-dyed portion, a dyed portion, and an undyed portion.

Next, the same cleaning step, softening step, dehydration step, drying step, hem sewing step, and inspection step were performed in this order. As a result, textile products (towels) were manufactured. The textile product contained an undyed part, a yarn-dyed part, a hazy-dyed part, and a dyed part. The undyed portion was designated as Example 1, the pre-dyed portion was designated as Example 2, the hazy dyed portion was designated as Example 3, and the dyed portion was designated as Example 4.

(Comparative Example 1)
First, composite plyed yarns were produced in the same manner as in Examples 1 to 4 except that the trade name "Mintvar" of Kuraray Trading Co., Ltd., which is a water-soluble yarn, was used as the first yarn.

Next, the same steam setting process as described above was performed. An enlarged photograph of the cross section of the composite plyed yarn before and after the steam setting process is shown in FIG. 4B. The central fiber shown in FIG. 4B is the first yarn, and the surrounding fibers are the second yarn. As shown in FIG. 4B, in the composite plyed yarn of Comparative Example 1, a part of the first yarn after the steam setting step was melted.

When the composite twisted yarn was yarn-dyed in Comparative Example 1, the first yarn was dissolved and the composite twisted yarn could not be dyed in a desired color. Therefore, in Comparative Example 1, the yarn dyeing step was not performed.

When the undercoating agent was added to the composite twisted yarn in Comparative Example 1, the first yarn was dissolved and the desired amount of the undercoating agent could not be attached to the composite twisted yarn. Therefore, in Comparative Example 1, the under-pickling step was not performed.

Next, the same warping and weaving steps as in Examples 1 to 4 were performed.

Since the under-pickling step was not performed as described above, the hazy dyeing step was not performed in Comparative Example 1.

Next, the same degluing step as in Examples 1 to 4 was performed. In Comparative Example 1, the first yarn was dissolved during the gelatin removal step.

Next, in the same order as in Examples 1 to 4, the refining process, the edge stitching process, the chlorine bleaching process, the cosmetic bleaching process, the wins cleaning process, the cleaning process, the softening process, the dehydration process, the drying process, the hem sewing process, and the inspection process. gone.

As a result, textile products (towels) were manufactured.

(Example 5)
In the alkaline treatment process, caustic soda is contained at 4 g / L, weight loss accelerator (product name DYK-1125 manufactured by Lion Specialty Chemicals Co., Ltd.) is contained at 3 g / L, the bath ratio of the treatment bath is 1:20, and the treatment bath A textile product was produced in the same manner as in Example 2 except that the temperature was 95 to 97 ° C. and the time for immersing the dough in the treatment bath was 30 minutes.

(Comparative Example 2)
In the alkaline treatment process, 2 g / L of caustic soda and 3 g / L of weight loss accelerator (product name DYK-1125 manufactured by Lion Specialty Chemicals Co., Ltd.) are contained, the bath ratio of the treatment bath is 1:20, and the treatment bath has a bath ratio of 1:20. A textile product was produced in the same manner as in Example 2 except that the temperature was 95 to 97 ° C. and the time for immersing the dough in the treatment bath was 30 minutes.

(Example 6)
In the alkaline treatment process, caustic soda is contained at 20 g / L, weight loss accelerator (product name DYK-1125 manufactured by Lion Specialty Chemicals Co., Ltd.) is contained at 3 g / L, the bath ratio of the treatment bath is 1:20, and the treatment bath A textile product was produced in the same manner as in Example 2 except that the temperature was 95 to 97 ° C. and the time for immersing the dough in the treatment bath was 30 minutes.

(Example 7)
As the second yarn contained in the composite twisted yarn, a 40-count cotton yarn having a twist coefficient K of 4.2 is used, the ratio of the first yarn to the composite twisted yarn is 18%, and the twisting direction of the composite twisted yarn and the first yarn. A textile product was produced in the same manner as in Example 1 except that a composite plyed yarn having the same twisting direction as that of the first yarn and the number of twists of the first yarn and the second yarn was 26.5 times / 吋 was used. bottom.

(Example 8)
As the second yarn contained in the composite twisted yarn, 80 count cotton yarn having a twist coefficient K of 3.6 is used, the ratio of the first yarn to the composite twisted yarn is 31%, and the twisting direction of the composite twisted yarn and the first yarn. A textile product was produced in the same manner as in Example 1 except that a composite plyed yarn having the same twisting direction as that of the first yarn and the number of twists of the first yarn and the second yarn was 32 times / 吋 was used.

(Example 9)
As the second yarn contained in the composite twisted yarn, a 10-count cotton yarn having a twist coefficient K of 4.4 is used, the ratio of the first yarn to the composite twisted yarn is 5%, and the twisting direction of the composite twisted yarn and the first yarn. A textile product was produced in the same manner as in Example 1 except that a composite plyed yarn having the same twisting direction as that of the first yarn and the number of twists of the first yarn and the second yarn was 14 times / 吋 was used.

(Example 10)
As the second yarn contained in the composite twisted yarn, 100 count cotton yarn having a twist coefficient K of 3.6 is used, the ratio of the first yarn to the composite twisted yarn is 36%, and the twisting direction of the composite twisted yarn and the first yarn. A textile product was produced in the same manner as in Example 1 except that a composite plyed yarn having the same twisting direction as that of the first yarn and the number of twists of the first yarn and the second yarn was 36 times / 吋 was used.

Regarding the textile products of Examples 1 to 10 and Comparative Example 1 above, the pile shape, surface roughness, sensory evaluation, specific volume, compression rate, recovery rate, water absorption, and residual fat rate were evaluated by the following methods and criteria. bottom. The results are shown in Tables 1 and 2 below.

<Pile shape>
With respect to the textile products of Examples 1 to 10 and Comparative Example 1, the shape of the pile was confirmed using an electron microscope and evaluated according to the following criteria. Further, enlarged photographs of the piles of Example 1 and Comparative Example 1 are shown in FIGS. 6A and 6B.
A: The pile is uniform without twisting.
B: The pile is twisted and non-uniform.

<Surface roughness>
For the textile products of Examples 1 to 10 and Comparative Example 1, the vertical surface roughness (KES FB-4 SMD) was measured using an automated surface tester KES FB-4-AUTO-A manufactured by Kato Tech Co., Ltd. It was measured.

<Sensory evaluation>
The feel of the textile products of Examples 1 to 10 and Comparative Example 1 when touched by 21 people (7 men and 14 women) was evaluated according to the following criteria A to C, and the number of people was evaluated. ..
A: It feels smooth and comfortable.
B: Soft to the touch.
C: I don't feel any difference or I'm stiff.

<Specific volume>
For the textile products of Examples 1 to 10 and Comparative Example 1, the specific volume to which JIS L 1097 was applied was measured.

<Compression rate>
For the textile products of Examples 1 to 10 and Comparative Example 1, the compression ratio used for measuring the compressive elasticity to which JIS L 1097 was applied was measured.

<Recovery rate>
For the textile products of Examples 1 to 10 and Comparative Example 1, the recovery rate used for measuring the compressive elasticity to which JIS L 1097 was applied was measured.

<Water absorption>
The textile products of Examples 1 to 10 and Comparative Example 1 were evaluated for water absorption based on JIS L 1907 (precipitation method).

<Residual fat ratio>
After heating the textile products of Examples 1 to 10 and Comparative Example 1 in an oven at 105 ° C. for 15 minutes, about 5 g of the material was weighed and subjected to solvent (diethyl ether) extraction for 2 hours using a Soxhlet extractor. , The residual fat ratio was measured.

<Quick-drying>
The diffusible residual moisture content of the textile products of Examples 1 to 10 and Comparative Example 1 was measured. Further, FIG. 7 shows a graph comparing the quick-drying rates of Example 1 and Comparative Example 1.

<Dye dropout>
Regarding the textile products of Examples 2, 3, 5, and 6 that were dyed before the alkali treatment step, it was confirmed whether or not the dye had fallen off.

As is clear from Tables 1 and 2, the textile products of Examples 1 to 10 had a more uniform pile shape than that of Comparative Example 1. This is because the pile yarn (3) is not twisted and has a uniform shape in the enlarged photograph of the pile of Example 1 shown in FIG. 6A, whereas the pile of Comparative Example 1 shown in FIG. 6B is shown. It is clear from the fact that the pile yarn (4) is twisted and has a non-uniform shape in the enlarged photograph of. This is because, in the textile products of Examples 1 to 10, the shape of the second yarn is stabilized by dissolving the first yarn after removing impurities contained in the dough, and the shrinkage action by the alkaline solution causes the first yarn. It is considered that the cause is that the retention of the pile of one yarn is improved.

Further, as is clear from Tables 1 and 2, the textile products of Examples 1 to 10 have a smaller surface roughness than that of Comparative Example 1.

Further, since the pile shape of the textile products of Examples 1 to 10 is excellent and the surface roughness is small, the sensory evaluation of the textile products of Examples 1 to 4 is superior to that of Comparative Example 1.

In addition, the specific volume and compressibility of the textile products of Examples 1 to 10 are equal to or higher than those of Comparative Example 1, and have the same recovery rate as that of Comparative Example 1. Therefore, the textile products of Examples 1 to 10 have bulkiness equal to or higher than that of Comparative Example 1.

Further, the textile products of Examples 1 to 7 and 9 have the same water absorption as that of Comparative Example 1, have a lower residual fat ratio than that of Comparative Example 1, and are quicker to dry than that of Comparative Example 1. Therefore, the textile products of Examples 1 to 10 have better water absorption and quick-drying property than Comparative Example 1.

Further, in Examples 2, 3, 5 and 6 in which the concentration of the alkaline agent contained in the alkaline solution in the alkaline treatment step is in the range of 3 to 15 g / L, the first yarn is dissolved and removed, and the yarn dyeing dye is removed. It was not confirmed, or some dropout was confirmed, but there was no problem in the product. On the other hand, in Comparative Example 2 in which the concentration of the alkaline agent was less than 3 g / L, the first yarn was not dissolved and removed and remained.

Claims (8)

The first yarn, which is a polylactic acid yarn that is insoluble in water and soluble in an alkaline solution, and the cotton yarn, which is insoluble in both water and alkaline solutions, have a twist number of T (unit: times / 2.54 cm) and a cotton count. Is S (unit: count), and the second yarn represented by K = T / √S and having a twist coefficient of 3.6 or more is included, and the first yarn and the second yarn are twisted together. Forming composite twisted yarn, which is a yarn,
The first yarn and the second yarn are twisted with a twist number in the range of 0.3 to 2.2 times the twist number of the first yarn.
A pile fabric containing warp, weft, and pile yarn, at least forming a fabric in which the pile yarn is the composite plyed yarn.
The first yarn is removed from the dough by immersing the dough in an alkaline solution and completely dissolving the first yarn in the dough with the alkaline solution.
After the first yarn in the fabric is dissolved in the alkaline solution, the pile yarn in the fabric is twisted.
How to manufacture textile products. The alkaline solution contains an alkaline agent having a concentration in the range of 3 to 15 g / L.
The method for producing a textile product according to claim 1. The alkaline solution further contains a weight loss accelerator.
The method for producing a textile product according to claim 2. The ratio of the first yarn in the composite twist is in the range of 10 to 36% by mass.
The method for producing a textile product according to any one of claims 1 to 3. After dyeing the composite plying, a fabric is formed from the composite plying.
The method for producing a textile product according to any one of claims 1 to 4. Before dissolving the first yarn in the dough with the alkaline solution, hazy dyeing is performed.
The method for producing a textile product according to any one of claims 1 to 5. After dissolving the first yarn in the fabric with the alkaline solution, dyeing is performed with a dye to be dyed on the second yarn in the fabric.
The method for producing a textile product according to any one of claims 1 to 6. Including a bleaching step of removing impurities contained in the dough,
After the bleaching step, the first yarn in the dough is dissolved in the alkaline solution.
The method for producing a textile product according to any one of claims 1 to 7.

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