CN112501740A - Space-dyed velvet yarn and manufacturing process thereof - Google Patents
Space-dyed velvet yarn and manufacturing process thereof Download PDFInfo
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- CN112501740A CN112501740A CN202011133949.0A CN202011133949A CN112501740A CN 112501740 A CN112501740 A CN 112501740A CN 202011133949 A CN202011133949 A CN 202011133949A CN 112501740 A CN112501740 A CN 112501740A
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/34—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns
- D02G3/346—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns with coloured effects, i.e. by differential dyeing process
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/16—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dispersed, e.g. acetate, dyestuffs
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/445—Use of auxiliary substances before, during or after dyeing or printing
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/653—Nitrogen-free carboxylic acids or their salts
- D06P1/6533—Aliphatic, araliphatic or cycloaliphatic
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/673—Inorganic compounds
- D06P1/67333—Salts or hydroxides
- D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
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Abstract
The invention relates to the technical field of yarns, in particular to a space-dyed velvet yarn and a manufacturing process thereof, wherein the space-dyed velvet yarn comprises a yarn main body, the yarn main body comprises a core yarn and a sheath yarn, the core yarn and the sheath yarn are mutually wound to form the yarn main body, the core yarn and the sheath yarn are both provided with a plurality of fiber bundles, and the surface of the yarn main body is provided with velvet-shaped bulges. Through intertwine core yarn and leather yarn for core yarn and leather yarn fully combine, difficult separation, and the surface has the pile form arch, makes the hand touch have fine hair and soft experience sense. In addition, the velvet yarn is dyed in a sectional mode, and the unique vitality of the yarn is endowed due to the rich color change of the velvet yarn, so that the yarn is more diversified and abundant. The invention has simple structure, ingenious design and simple manufacturing process, has thick and exquisite velvet feeling and rich colors, simultaneously has excellent performance and can meet the requirements of various knitting processes.
Description
Technical Field
The invention relates to the technical field of yarns, in particular to space-dyed velvet yarn and a manufacturing process thereof.
Background
The yarn with the velvet feeling is obtained by carrying out air deformation treatment on various yarns such as terylene, chinlon and the like, the yarn structure is compact, various large and small yarn loops and arcs are randomly distributed on the surface of the yarn, and the yarn has the velvet feeling effect. The velvet yarn can have different effects such as short velvet, medium velvet, long velvet, slub velvet and the like according to the change of the feeding proportion of the sheath and the core.
Space dyed yarn means yarn dyed in a sectional form and dyed with two or more different colors and the colors are alternately changed. The space dyeing yarn endows unique vitality to the knitted fabric with rich color change, so that the knitted dress is more various and abundant.
At present, velvet yarn and space-dyed yarn products in the market are rich and various, but products with the characteristics of space dyeing and velvet feeling are relatively few, and the quality is uneven.
Disclosure of Invention
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The invention aims to overcome the defects and provide space-dyed velvet yarn with thick and exquisite velvet feeling and rich colors, and meanwhile, the yarn has excellent performance and can meet the requirements of various knitting processes.
In order to achieve the purpose, the technical solution of the invention is as follows: the space-dyed velvet yarn comprises a yarn main body, wherein the yarn main body comprises a core yarn and a sheath yarn, the core yarn and the sheath yarn are mutually wound to form the yarn main body, the core yarn and the sheath yarn are both provided with a plurality of fiber bundles, and the surface of the yarn main body is provided with velvet-shaped bulges.
Preferably, the yarn main body comprises a plurality of yarn sub-bodies.
Preferably, the colors of the two adjacent yarn components are different.
Preferably, the colors of the yarn components are different.
Preferably, the lengths of the yarn sections are different.
The invention also provides a manufacturing process of the space-dyed velvet yarn, which comprises the following steps:
s1, an air deformation process: mutually winding the sheath yarn and the core yarn through an air texturing machine to form a wool-like yarn;
s2, a space dyeing process:
s21, yarn stranding: setting the number of meters of the pile-like yarns according to the specification and the weight of the yarns by a shaking machine, and then shaking the pile-like yarns into hank yarns;
s22, segmentation: binding segments according to the length and color of each segment;
s23, preparing a dye solution: preparing a dye solution;
s24, dyeing: filling the bundled skein and the dye liquor into a dye vat of dyeing equipment, adding glacial acetic acid into the dye vat of the dyeing equipment to adjust the pH value of the dye liquor to be between 4.0 and 4.5, adjusting the temperature in the dye vat to be between 100 and 160 ℃, and starting a circulating pump of the dye vat to dye;
s25, soaping: adding 20-40 parts of soaping agent after dyeing, adjusting the temperature in the dye vat to 30-90 ℃, preserving the temperature for 20-40 min, and cleaning for 2-4 times by using clear water after discharging liquid;
s26, cleaning: adding 20-40 parts of sodium hydroxide and 30-50 parts of sodium hydrosulfite, adjusting the temperature in the dye vat to 60-90 ℃, preserving the temperature for 10-30 min, draining, and cleaning for 2-4 times by using clear water;
s27, neutralization: adding 5-10 parts of glacial acetic acid, adjusting the temperature in the dye vat to 40-60 ℃, and preserving the temperature for 5-15 min;
s28, over-softening: adding 10-20 parts of a yarn softening agent, adjusting the temperature in a dye vat to 30-60 ℃, and preserving the temperature for 5-15 min;
s29, dewatering and drying: and (3) putting the over-soft yarns into a dehydrator for dehydrating, and then putting the yarns into an oven for drying to form space-dyed velvet yarns.
Preferably, in the step S23, the dye solution includes, by weight, 4 to 15 parts of a disperse dye, 15 to 25 parts of a leveling agent, 10 to 20 parts of a dispersant, and 10 to 20 parts of clear water.
Preferably, in step S24, the dyeing time is 30-60 min.
Preferably, the air-texturing process comprises the steps of:
s11, threading: sequentially passing core yarns through a first pre-stretching roller, a first stretching roller, a moistener, an air-variant nozzle, a drafting back roller, a setting hot box and a winding device on an air texturing machine; the second pre-stretching roller, the second stretching roller, the fancy drawing device, the air-variant nozzle, the back drafting roller, the shaping hot box and the winding device are sequentially wound on the air texturing machine;
s12: heating: the first pre-tensioning roller heats the core yarn, and the second pre-tensioning roller heats the leather yarn;
s13, stretching: the first stretching roller stretches the heated core yarn, and the second stretching roller stretches the heated leather yarn;
s14, pulling: the fancy drawing device intermittently draws the drawn leather yarn, so that the leather yarn between the second drawing roller and the air-jet texturing nozzle is intermittently stored;
s15, stranding: combining the core yarn and the cover yarn into one strand in the air-jet texturing nozzle;
s16, air deformation: the air-jet texturing nozzle sprays air to the core yarn and the sheath yarn to form a pile-like primary yarn;
s17, shaping: the shaping hot box carries out heat shaping on the wool-feeling primary yarn to form wool-feeling yarn;
s18, winding: the winding device winds the pile yarn.
Preferably, in step S15, the overfeed rate of the core yarn is 16% to 25%, and the overfeed rate of the sheath yarn is 45% to 65%.
Preferably, in step S16, the operating air pressure of the air-fuel ratio nozzle is 5 to 12 MPa.
Preferably, in step S13, the stretching size of the first stretching roller is 3 to 5 times the stretching size of the first pre-stretching roller, and the stretching size of the second stretching roller is 3 to 5 times the stretching size of the second pre-stretching roller.
By adopting the technical scheme, the invention has the beneficial effects that: through intertwine core yarn and leather yarn for core yarn and leather yarn fully combine, difficult separation, and the surface has the pile form arch, makes the hand touch have fine hair and soft experience sense. In addition, the velvet yarn is dyed in a sectional mode, and the unique vitality of the yarn is endowed due to the rich color change of the velvet yarn, so that the yarn is more diversified and abundant. The invention has simple structure, ingenious design and simple manufacturing process, has thick and exquisite velvet feeling and rich colors, simultaneously has excellent performance and can meet the requirements of various knitting processes.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Clearly, such objects and other objects of the present invention will become more apparent from the detailed description of the preferred embodiments hereinafter set forth in the various drawings and drawings.
These and other objects, features and advantages of the present invention will become more apparent from the following detailed description of one or more preferred embodiments of the invention, as illustrated in the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings, like parts are designated with like reference numerals, and the drawings are schematic and not necessarily drawn to scale.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, it is obvious that the drawings in the following description are only one or several embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to such drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of embodiment 1 of the present invention;
FIG. 3 is a schematic structural view of example 2 of the present invention;
FIG. 4 is a schematic structural diagram of embodiment 3 of the present invention;
FIG. 5 is a schematic flow chart of the present invention;
FIG. 6 is a schematic view of a space dyeing process of the present invention;
FIG. 7 is a schematic view of the air texturing process of the present invention.
Description of the main reference numerals: (1, core yarn; 2, sheath yarn; 3, cellulose; 4, velvet-like projection; 5, yarn split).
Detailed Description
The following detailed description of the embodiments of the present invention will be provided with reference to the drawings and examples, so that how to apply the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented. It should be noted that, as long as there is no conflict, the embodiments and the features of the embodiments of the present invention may be combined with each other, and the technical solutions formed are within the scope of the present invention.
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details or with other methods described herein.
Example 1
Referring to fig. 1, the space-dyed velvet yarn comprises a yarn main body, wherein the yarn main body comprises a core yarn 1 and a sheath yarn 2, the core yarn 1 and the sheath yarn 2 are mutually wound to form the yarn main body, the core yarn 1 and the sheath yarn 2 are both provided with a plurality of fiber bundles 3, and the surface of the yarn main body is provided with velvet-shaped protrusions 4.
Referring to fig. 2, the yarn body includes a plurality of yarn segments 5.
The colors of the two adjacent yarn components 5 are different.
Referring to fig. 5 to 7, this embodiment further provides a process for manufacturing the space-dyed pile yarn described above, including the following steps:
s1, an air deformation process: mutually winding the sheath yarn 2 and the core yarn 1 through an air texturing machine to form a wool-like yarn;
s11, threading: sequentially passing the core yarn 1 through a first pre-stretching roller, a first stretching roller, a moistener, an air-variant nozzle, a stretching back roller, a shaping hot box and a winding device on an air texturing machine; sequentially passing the leather yarn 2 through a second pre-stretching roller, a second stretching roller, a fancy drawing device, the air-variant nozzle, the back drafting roller, the shaping hot box and the winding device on an air texturing machine;
s12: heating: the first pre-tensioning roller heats the core yarn 1, and the second pre-tensioning roller heats the leather yarn 2;
s13, stretching: the first stretching roller stretches the heated core yarn 1, and the second stretching roller stretches the heated leather yarn 2;
s14, pulling: the fancy drawing device intermittently draws the drawn leather yarn 2, so that the leather yarn 2 between the second drawing roller and the air-jet texturing nozzle is intermittently stored;
s15, stranding: combining the core yarn 1 and the sheath yarn 2 into one strand in the air-jet texturing nozzle;
s16, air deformation: the air-jet texturing nozzle sprays air to the core yarn 1 and the sheath yarn 2 to form a pile-feeling primary yarn;
s17, shaping: the shaping hot box carries out heat shaping on the wool-feeling primary yarn to form wool-feeling yarn;
s18, winding: the winding device winds the pile yarn.
S2, a space dyeing process:
s21, yarn stranding: setting the number of meters of the pile-like yarns according to the specification and the weight of the yarns by a shaking machine, and then shaking the pile-like yarns into hank yarns;
s22, segmentation: binding segments according to the length and color of each segment;
s23, preparing a dye solution: preparing a dye solution;
s24, dyeing: filling the bundled skein and the dye liquor into a dye vat of dyeing equipment, adding glacial acetic acid into the dye vat of the dyeing equipment to adjust the pH value of the dye liquor to be 4.0, adjusting the temperature in the dye vat to be 100 ℃, and starting a circulating pump of the dye vat to dye;
s25, soaping: adding 20 parts of soaping agent after dyeing, adjusting the temperature in the dye vat to 30 ℃, preserving the temperature for 40min, draining liquid, and cleaning for 2 times by using clear water;
s26, cleaning: adding 20 parts of sodium hydroxide and 30 parts of sodium hydrosulfite, adjusting the temperature in the dye vat to 60 ℃, preserving the temperature for 30min, draining, and cleaning for 2 times by using clear water;
s27, neutralization: adding 5 parts of glacial acetic acid, adjusting the temperature in the dye vat to 40 ℃, and keeping the temperature for 15 min;
s28, over-softening: adding 10 parts of yarn softening agent, adjusting the temperature in the dye vat to 30 ℃, and keeping the temperature for 15 min;
s29, dewatering and drying: and (3) putting the over-soft yarns into a dehydrator for dehydrating, and then putting the yarns into an oven for drying to form space-dyed velvet yarns.
In step S15, the overfeed rate of the core yarn is 16% and the overfeed rate of the sheath yarn is 45%.
In step S16, the operating pressure of the air-fuel ratio nozzle is 7 MPa.
In step S13, the stretching size of the first stretching roller is 3 times that of the first pre-stretching roller, and the stretching size of the second stretching roller is 3 times that of the second pre-stretching roller.
In step S23, the dye solution comprises, by weight, 4 parts of disperse dye, 15 parts of leveling agent, 10 parts of dispersing agent and 10 parts of clear water.
In step S24, the dyeing time was 60 min.
Example 2
Referring to fig. 1, the space-dyed velvet yarn comprises a yarn main body, wherein the yarn main body comprises a core yarn 1 and a sheath yarn 2, the core yarn 1 and the sheath yarn 2 are mutually wound to form the yarn main body, the core yarn 1 and the sheath yarn 2 are both provided with a plurality of fiber bundles 3, and the surface of the yarn main body is provided with velvet-shaped protrusions 4.
Referring to fig. 3, the yarn body includes a plurality of yarn segments 5.
The yarn components 5 are not uniform in color.
Referring to fig. 5 to 7, this embodiment further provides a process for manufacturing the space-dyed pile yarn described above, including the following steps:
s1, an air deformation process: mutually winding the sheath yarn 2 and the core yarn 1 through an air texturing machine to form a wool-like yarn;
s11, threading: sequentially passing the core yarn 1 through a first pre-stretching roller, a first stretching roller, a moistener, an air-variant nozzle, a stretching back roller, a shaping hot box and a winding device on an air texturing machine; sequentially passing the leather yarn 2 through a second pre-stretching roller, a second stretching roller, a fancy drawing device, the air-variant nozzle, the back drafting roller, the shaping hot box and the winding device on an air texturing machine;
s12: heating: the first pre-tensioning roller heats the core yarn 1, and the second pre-tensioning roller heats the leather yarn 2;
s13, stretching: the first stretching roller stretches the heated core yarn 1, and the second stretching roller stretches the heated leather yarn 2;
s14, pulling: the fancy drawing device intermittently draws the drawn leather yarn 2, so that the leather yarn 2 between the second drawing roller and the air-jet texturing nozzle is intermittently stored;
s15, stranding: combining the core yarn 1 and the sheath yarn 2 into one strand in the air-jet texturing nozzle;
s16, air deformation: the air-jet texturing nozzle sprays air to the core yarn 1 and the sheath yarn 2 to form a pile-feeling primary yarn;
s17, shaping: the shaping hot box carries out heat shaping on the wool-feeling primary yarn to form wool-feeling yarn;
s18, winding: the winding device winds the pile yarn.
S2, a space dyeing process:
s21, yarn stranding: setting the number of meters of the pile-like yarns according to the specification and the weight of the yarns by a shaking machine, and then shaking the pile-like yarns into hank yarns;
s22, segmentation: binding segments according to the length and color of each segment;
s23, preparing a dye solution: preparing a dye solution;
s24, dyeing: filling the bundled skein and the dye liquor into a dye vat of dyeing equipment, adding glacial acetic acid into the dye vat of the dyeing equipment to adjust the pH value of the dye liquor to be 4.3, adjusting the temperature in the dye vat to 130 ℃, and starting a circulating pump of the dye vat to dye;
s25, soaping: after dyeing is finished, 30 parts of soaping agent is added, the temperature in the dye vat is adjusted to 60 ℃, heat preservation is carried out for 30min, and after liquid discharge, cleaning is carried out for 3 times by using clean water;
s26, cleaning: adding 30 parts of sodium hydroxide and 40 parts of sodium hydrosulfite, adjusting the temperature in the dye vat to 75 ℃, preserving the temperature for 20min, draining, and cleaning for 3 times by using clear water;
s27, neutralization: adding 7 parts of glacial acetic acid, adjusting the temperature in the dye vat to 50 ℃, and preserving the temperature for 10 min;
s28, over-softening: adding 15 parts of yarn softening agent, adjusting the temperature in the dye vat to 45 ℃, and keeping the temperature for 10 min;
s29, dewatering and drying: and (3) putting the over-soft yarns into a dehydrator for dehydrating, and then putting the yarns into an oven for drying to form space-dyed velvet yarns.
In step S15, the overfeed rate of the core yarn is 20% and the overfeed rate of the sheath yarn is 55%.
In step S16, the operating pressure of the air-fuel ratio nozzle is 9 MPa.
In step S13, the stretching size of the first stretching roller is 4 times that of the first pre-stretching roller, and the stretching size of the second stretching roller is 4 times that of the second pre-stretching roller.
In step S23, the dye solution comprises 9 parts of disperse dye, 20 parts of leveling agent, 15 parts of dispersing agent and 15 parts of clear water according to parts by weight.
In step S24, the dyeing time was 45 min.
Example 3
Referring to fig. 1, the space-dyed velvet yarn comprises a yarn main body, wherein the yarn main body comprises a core yarn 1 and a sheath yarn 2, the core yarn 1 and the sheath yarn 2 are mutually wound to form the yarn main body, the core yarn 1 and the sheath yarn 2 are both provided with a plurality of fiber bundles 3, and the surface of the yarn main body is provided with velvet-shaped protrusions 4.
Referring to fig. 4, the yarn body includes a plurality of yarn segments 5.
The colors of the two adjacent yarn components 5 are different.
The lengths of the individual yarn sections 5 are not uniform.
Referring to fig. 5 to 7, this embodiment further provides a process for manufacturing the space-dyed pile yarn described above, including the following steps:
s1, an air deformation process: mutually winding the sheath yarn 2 and the core yarn 1 through an air texturing machine to form a wool-like yarn;
s11, threading: sequentially passing the core yarn 1 through a first pre-stretching roller, a first stretching roller, a moistener, an air-variant nozzle, a stretching back roller, a shaping hot box and a winding device on an air texturing machine; sequentially passing the leather yarn 2 through a second pre-stretching roller, a second stretching roller, a fancy drawing device, the air-variant nozzle, the back drafting roller, the shaping hot box and the winding device on an air texturing machine;
s12: heating: the first pre-tensioning roller heats the core yarn 1, and the second pre-tensioning roller heats the leather yarn 2;
s13, stretching: the first stretching roller stretches the heated core yarn 1, and the second stretching roller stretches the heated leather yarn 2;
s14, pulling: the fancy drawing device intermittently draws the drawn leather yarn 2, so that the leather yarn 2 between the second drawing roller and the air-jet texturing nozzle is intermittently stored;
s15, stranding: combining the core yarn 1 and the sheath yarn 2 into one strand in the air-jet texturing nozzle;
s16, air deformation: the air-jet texturing nozzle sprays air to the core yarn 1 and the sheath yarn 2 to form a pile-feeling primary yarn;
s17, shaping: the shaping hot box carries out heat shaping on the wool-feeling primary yarn to form wool-feeling yarn;
s18, winding: the winding device winds the pile yarn.
S2, a space dyeing process:
s21, yarn stranding: setting the number of meters of the pile-like yarns according to the specification and the weight of the yarns by a shaking machine, and then shaking the pile-like yarns into hank yarns;
s22, segmentation: binding segments according to the length and color of each segment;
s23, preparing a dye solution: preparing a dye solution;
s24, dyeing: filling the bundled skein and the dye liquor into a dye vat of dyeing equipment, adding glacial acetic acid into the dye vat of the dyeing equipment to adjust the pH value of the dye liquor to be 4.5, adjusting the temperature in the dye vat to 160 ℃, and starting a circulating pump of the dye vat to dye;
s25, soaping: adding 40 parts of soaping agent after dyeing, adjusting the temperature in the dye vat to 90 ℃, preserving the temperature for 40min, draining liquid, and cleaning for 4 times by using clear water;
s26, cleaning: adding 40 parts of sodium hydroxide and 50 parts of sodium hydrosulfite, adjusting the temperature in the dye vat to 90 ℃, preserving the temperature for 10min, draining, and cleaning for 4 times by using clear water;
s27, neutralization: adding 10 parts of glacial acetic acid, adjusting the temperature in the dye vat to 60 ℃, and preserving the temperature for 5 min;
s28, over-softening: adding 20 parts of yarn softening agent, adjusting the temperature in the dye vat to 60 ℃, and keeping the temperature for 5 min;
s29, dewatering and drying: and (3) putting the over-soft yarns into a dehydrator for dehydrating, and then putting the yarns into an oven for drying to form space-dyed velvet yarns.
In step S15, the overfeed rate of the core yarn is 25% and the overfeed rate of the sheath yarn is 65%.
In step S16, the operating pressure of the air-fuel ratio nozzle is 11 MPa.
In step S13, the stretching size of the first stretching roller is 5 times that of the first pre-stretching roller, and the stretching size of the second stretching roller is 5 times that of the second pre-stretching roller.
In step S23, the dye solution comprises, by weight, 15 parts of disperse dye, 25 parts of leveling agent, 20 parts of dispersing agent and 20 parts of clear water.
In step S24, the dyeing time was 30 min.
It is to be understood that the disclosed embodiments of the invention are not limited to the particular process steps or materials disclosed herein, but rather, are extended to equivalents thereof as would be understood by those of ordinary skill in the relevant art. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting.
Reference in the specification to "an embodiment" means that a particular feature, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. Thus, the appearances of the phrase or "an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment.
Furthermore, the described features or characteristics may be combined in any other suitable manner in one or more embodiments. In the above description, certain specific details are provided, such as thicknesses, amounts, etc., to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth.
Claims (10)
1. The space-dyed velvet yarn is characterized by comprising a yarn main body, wherein the yarn main body comprises a core yarn and a sheath yarn, the core yarn and the sheath yarn are mutually wound to form the yarn main body, the core yarn and the sheath yarn are both provided with a plurality of fiber bundles, and the surface of the yarn main body is provided with velvet-shaped protrusions.
2. The space dyed velvet yarn of claim 1, wherein the yarn main body comprises a plurality of yarn sub-bodies, and the colors of two adjacent yarn sub-bodies are different.
3. The space dyed pile yarn of claim 2 wherein the individual yarn sections are of different colors and different lengths.
4. A process for making a space dyed pile yarn as claimed in any one of claims 1 to 3, comprising the steps of:
s1, an air deformation process: mutually winding the sheath yarn and the core yarn through an air texturing machine to form a wool-like yarn;
s2, a space dyeing process:
s21, yarn stranding: setting the number of meters of the pile-like yarns according to the specification and the weight of the yarns by a shaking machine, and then shaking the pile-like yarns into hank yarns;
s22, segmentation: binding segments according to the length and color of each segment;
s23, preparing a dye solution: preparing a dye solution;
s24, dyeing: filling the bundled skein and the dye liquor into a dye vat of dyeing equipment, adding glacial acetic acid into the dye vat of the dyeing equipment to adjust the pH value of the dye liquor to be between 4.0 and 4.5, adjusting the temperature in the dye vat to be between 100 and 160 ℃, and starting a circulating pump of the dye vat to dye;
s25, soaping: adding 20-40 parts of soaping agent after dyeing, adjusting the temperature in the dye vat to 30-90 ℃, preserving the temperature for 20-40 min, and cleaning for 2-4 times by using clear water after discharging liquid;
s26, cleaning: adding 20-40 parts of sodium hydroxide and 30-50 parts of sodium hydrosulfite, adjusting the temperature in the dye vat to 60-90 ℃, preserving the temperature for 10-30 min, draining, and cleaning for 2-4 times by using clear water;
s27, neutralization: adding 5-10 parts of glacial acetic acid, adjusting the temperature in the dye vat to 40-60 ℃, and preserving the temperature for 5-15 min;
s28, over-softening: adding 10-20 parts of a yarn softening agent, adjusting the temperature in a dye vat to 30-60 ℃, and preserving the temperature for 5-15 min;
s29, dewatering and drying: and (3) putting the over-soft yarns into a dehydrator for dehydrating, and then putting the yarns into an oven for drying to form space-dyed velvet yarns.
5. The process for manufacturing the space-dyed velvet yarn according to claim 4, wherein in the step S23, the dye solution comprises 4-15 parts by weight of disperse dyes, 15-25 parts by weight of leveling agents, 10-20 parts by weight of dispersing agents and 10-20 parts by weight of clear water.
6. The process for manufacturing space-dyed pile yarn according to claim 4, wherein in step S24, the dyeing time is 30-60 min.
7. The process of making space-dyed pile yarn as claimed in claim 4, wherein the air texturing process comprises the steps of:
s11, threading: sequentially passing core yarns through a first pre-stretching roller, a first stretching roller, a moistener, an air-variant nozzle, a drafting back roller, a setting hot box and a winding device on an air texturing machine; the second pre-stretching roller, the second stretching roller, the fancy drawing device, the air-variant nozzle, the back drafting roller, the shaping hot box and the winding device are sequentially wound on the air texturing machine;
s12: heating: the first pre-tensioning roller heats the core yarn, and the second pre-tensioning roller heats the leather yarn;
s13, stretching: the first stretching roller stretches the heated core yarn, and the second stretching roller stretches the heated leather yarn;
s14, pulling: the fancy drawing device intermittently draws the drawn leather yarn, so that the leather yarn between the second drawing roller and the air-jet texturing nozzle is intermittently stored;
s15, stranding: combining the core yarn and the cover yarn into one strand in the air-jet texturing nozzle;
s16, air deformation: the air-jet texturing nozzle sprays air to the core yarn and the sheath yarn to form a pile-like primary yarn;
s17, shaping: the shaping hot box carries out heat shaping on the wool-feeling primary yarn to form wool-feeling yarn;
s18, winding: the winding device winds the pile yarn.
8. The process of manufacturing space-dyed pile yarn as claimed in claim 7, wherein in step S15, the overfeed rate of the core yarn is 16% -25%, and the overfeed rate of the sheath yarn is 45% -65%.
9. The process for manufacturing space-dyed pile-like yarn according to claim 7, wherein in step S16, the working air pressure of the space-variant nozzle is 5-12 MPa.
10. The process for manufacturing space-dyed pile yarn according to claim 7, wherein in step S13, the stretching size of the first stretching roller is 3-5 times of the stretching size of the first pre-stretching roller, and the stretching size of the second stretching roller is 3-5 times of the stretching size of the second pre-stretching roller.
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