CN113818261B - Silk fabric dyeing method and device - Google Patents

Silk fabric dyeing method and device Download PDF

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Publication number
CN113818261B
CN113818261B CN202111155588.4A CN202111155588A CN113818261B CN 113818261 B CN113818261 B CN 113818261B CN 202111155588 A CN202111155588 A CN 202111155588A CN 113818261 B CN113818261 B CN 113818261B
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Prior art keywords
silk fabric
fixation
dyeing
color
silk
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CN113818261A (en
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吴振华
程文青
罗雨霓
王际平
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Zhejiang Lvyu Textile Technology Co ltd
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Zhejiang Lvyu Textile Technology Co ltd
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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
    • D06P1/38—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 reactive dyes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B19/00—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00
    • D06B19/0005—Fixing of chemicals, e.g. dyestuffs, on textile materials
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B21/00—Successive treatments of textile materials by liquids, gases or vapours
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
    • D06B3/18—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics combined with squeezing, e.g. in padding machines
    • 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
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/82—Textiles which contain different kinds of fibres
    • D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
    • D06P3/8209—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing amide groups
    • 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
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/02—After-treatment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear

Abstract

The invention relates to the technical field of textile dyeing and finishing, in particular to a silk fabric dyeing method and device. The method comprises the following steps: padding a first dye liquor containing reactive dye on silk fabric; in a color fixing box, using a non-aqueous color fixing medium to fix colors of the silk fabric padded with the first dye liquor; and during the fixation, maintaining the cloth surface tension of the silk fabric between 1kg and 100 kg; and washing and removing the liquid from the silk fabric subjected to color fixation to finish dyeing.

Description

Silk fabric dyeing method and device
Technical Field
The invention relates to the technical field of textile dyeing and finishing, in particular to a silk fabric dyeing method and device.
Background
In the current solutions, when dyeing silk with reactive dyes, high color fastness is achieved, it is necessary to carry out under alkaline conditions, and a large amount of a dyeing promoter (salt or anhydrous sodium sulphate) is required to promote the adsorption of the dye on the fiber. Wherein, when silk is dyed, the addition of a large amount of alkali and a dyeing accelerator accelerates the hydrolysis of the dye, resulting in the reduction of the dye utilization rate; and also lead to the hydrolysis of silk peptide bond, lead to the colour fastness to be poor, the silk damage is serious, has seriously influenced silk fabric's dyeing property.
Disclosure of Invention
In view of the above-mentioned drawbacks and problems of the prior art, an object of the present invention is to provide a dyeing method and apparatus for silk fabric, which can improve the dye utilization and eliminate the layer difference and migration phenomenon in the conventional dyeing process.
To achieve the above and other related objects, according to a first aspect of the present invention, there is provided a silk fabric dyeing method comprising the steps of:
padding a first dye liquor containing reactive dye on silk fabric;
in a color fixing box, using a non-aqueous color fixing medium to fix colors of the silk fabric padded with the first dye liquor; and during the fixation, maintaining the cloth surface tension of the silk fabric between 1kg and 100 kg;
and washing and removing the liquid from the silk fabric subjected to color fixation to finish dyeing.
In some embodiments, the silk fabric is a 100% silk fabric, and the cloth cover tension of the 100% silk fabric is maintained at 1kg during the fixation; alternatively, the silk fabric is a fabric containing 95% silk and 5% wool, and the cloth cover tension of the fabric containing 95% silk and 5% wool is maintained at 1.2kg during the fixation.
In some embodiments, the padding of the first dye liquor comprising reactive dye onto silk fabric comprises: the first dye liquor is padded onto silk fabric using a uniformity padder with a pressure set between 0.05MPa and 0.3 MPa.
In some embodiments, the non-aqueous fixing medium is not compatible with water and the viscosity of the non-aqueous fixing medium is less than 200mm 2 And/s, the surface tension is 15-40 dyn/cm, and the boiling point is 100-400 ℃.
In some embodiments, the temperature of the fixing box is maintained at 50 ℃ to 130 ℃ during the fixing; the residence time of the silk fabric in the color fixing box (3) is 30s to 180s.
In one example of this embodiment, the silk fabric is a 100% silk fabric, the temperature of the fixing tank is maintained at 95 ℃ during the fixing, and the residence time of the 100% silk fabric in the fixing tank is 180S; or, the silk fabric is a fabric containing 95% silk and 5% wool, the temperature of the color fixing box is maintained to be 90 ℃ during the color fixing process, and the residence time of the fabric containing 95% silk and 5% wool in the color fixing box is 60S.
In some embodiments, the fixation tank specifically includes at least two fixation tanks in tandem; during the fixation, the temperature of different fixation boxes in the at least two fixation boxes is different, and the temperature sequentially rises according to the sequence of the fixation boxes in the at least two fixation boxes.
In some embodiments, the fixing box comprises at least one fixing box, the temperature of different fixing boxes in the at least one fixing box being the same.
In a second aspect of the present invention there is provided a tie-dyeing apparatus for dyeing silk fabric comprising:
the cloth feeding device is used for receiving and flattening silk fabrics to be dyed;
the dyeing device is used for receiving the silk fabric conveyed by the cloth feeding device and padding the silk fabric by using a first dye solution containing reactive dye;
the color fixing box is used for fixing colors of the silk fabric padded with the first dye liquor by using a non-aqueous color fixing medium;
and the washing device is used for washing and deliquifying the silk fabric subjected to color fixation so as to finish dyeing.
In some embodiments, the fixation box is provided with a plurality of cloth guide rollers which are arranged alternately up and down; the cloth guide rollers are driving rollers which are driven by a motor and are controllable in rotating speed.
In some embodiments, the fixation tank specifically includes at least two fixation tanks in tandem; during the fixation, the temperature of different fixation boxes in the at least two fixation boxes is different, and the temperature sequentially rises according to the sequence of the fixation boxes in the at least two fixation boxes.
In some embodiments, the fixing box comprises at least one fixing box, the temperature of different fixing boxes in the at least one fixing box being the same.
The silk fabric dyeing method and the device provided by the invention can reduce the use amount of alkali in the dyeing process and eliminate the dyeing accelerator (i.e. no dyeing accelerator is added), thereby reducing the damage to silk fibers in the dyeing process, improving the dye utilization rate, eliminating the layer difference and migration phenomenon in the traditional dyeing process, improving the dyeing production efficiency and reducing the production cost.
Drawings
FIG. 1 is a schematic diagram of a continuous tie dyeing apparatus;
fig. 2 is a schematic structural view of a fixing box in the continuous tie-dyeing apparatus shown in fig. 1.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the invention, which is defined by the appended claims, but rather by the claims, unless otherwise indicated, and unless otherwise indicated, all changes in structure, proportions, or otherwise, used by those skilled in the art, are included in the spirit and scope of the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
In one scheme, silk fabric is dyed by a jig dyeing machine in a dip dyeing mode. The dyeing time of this scheme is long, increases silk fibrous damage, produces the inside and outside layer difference simultaneously easily, and production efficiency is low, and dyeing cost is high. Meanwhile, when in dyeing, a large amount of salt (accelerating agent) and alkali are added, so that the silk is seriously damaged, the inner layer and the outer layer are easily bad, the production efficiency is low, and the dyeing cost is high.
In another embodiment, silk fabric is dyed using a padding machine. In the scheme, the dyeing time is short, the production efficiency is high, the problems of dyeing uniformity and cost can be effectively solved, but the adaptability of the existing pad dyeing method to silk fabrics is poor, the phenomenon that dyes migrate along with evaporation of water from the inside of fibers to the surface of the fibers to cause uneven dyeing often occurs in the drying process, and a large amount of salt and alkali are required to be added in the dyeing process to promote the reaction between the fibers and reactive dyes so as to improve the dyeing fastness.
The embodiment of the invention provides a silk fabric dyeing method and a silk fabric dyeing device, which can reduce the use amount of alkali in the dyeing process and eliminate an accelerating agent (namely, no accelerating agent is added). Thereby reducing the damage to silk fiber in the dyeing process and improving the utilization rate of dye. And the layer difference and migration phenomenon in the traditional dyeing process can be eliminated, the dyeing production efficiency is improved, and the production cost is reduced.
Next, an example of a silk fabric dyeing method and apparatus provided by the embodiment of the present invention will be described.
Example 1
The embodiment provides continuous tie-dyeing equipment which can be used for implementing the silk fabric dyeing method. Referring to fig. 1, the continuous tie-dyeing equipment comprises a cloth feeding device 1, a dyeing device 2, a color fixing box 3, a re-rolling device 4, a washing device 5, a cloth discharging device 6 and other components which are sequentially connected.
Wherein the cloth feeding device 1 is used for receiving and flattening silk fabrics to be dyed and feeding the silk fabrics into the dyeing device 2. The dyeing apparatus 2 may pad the silk fabric. Wherein the dyeing apparatus 2 may be provided with a uniformity padder for padding silk fabrics. Specifically, a dye liquor for dyeing silk fabric may be prepared in advance and added to a tank of a padder. Wherein the content of the reactive dye in the dye liquor is 0.1 g/l-100 g/l, and the content of the alkali is 0.1 g/l-20 g/l.
The cloth feeding device 1 can be provided with a cloth feeding frame with a centering and spreading function. The cloth feeding frame can enable silk fabrics to be fed into the uniform padder in the dyeing device 2 smoothly and without folds. The uniform padder can pad the silk fabric. Illustratively, the uniform padder ground pressure may be set between 0.05MPa and 0.3 MPa.
In one example, the cloth after padding is preheated to prevent dye migration and uneven dyeing caused by sudden temperature rise.
The padded silk fabric can be fed into a fixing box 3 for fixing. Referring to fig. 2, a plurality of cloth guide rolls 32 for transferring silk fabric 33 are provided in the fixing box 3. As shown in fig. 2, the plurality of cloth guide rollers are alternately arranged up and down. Thereby, the silk fabric can be transferred to the fixing box 3 by the cloth guide roller 32.
The cloth guide roller 32 is a driving roller driven by a motor and with controllable rotation speed. Because the cloth guide roller 32 actively rotates to drive cloth to be conveyed, compared with a passive roller, the friction force between silk fabric and the cloth guide roller can be reduced, and accordingly defects caused by cloth cover scratch are reduced.
With continued reference to fig. 1 and 2, in order to further prevent the silk fabric in the fixing stage from wrinkling during the transfer, a tension sensor 31 is provided in the fixing box 3, which can be used to detect the cloth cover tension of the silk fabric 33 transferred by the cloth guide roller 32, and send the detection result to a control device (not shown). The control device may control the rotation speed of the cloth guide roller 32 according to the detection result, so as to maintain the cloth cover tension of the silk fabric 33 within a preset range. Wherein, the cloth cover tension of the silk fabric 33 can be maintained between 1kg and 100kg, thereby preventing cloth hemming caused by excessive tension or dyeing defects such as wrinkles, wicker marks and the like caused by too low tension.
The fixing tank 3 is filled with a liquid fixing medium which is an organic reagent that is not compatible with water and has the physical properties of low viscosity, low surface tension and high boiling point. In particular, the viscosity of the fixing medium is generally less than 200mm 2 The surface tension is 15 to 40dyn/cm, and the boiling point is 100 to 400 ℃. In one example, the fixation medium may be specifically a siloxane. In one example, the fixing medium may be decamethylcyclopenta-siloxane. In another example, the fixation medium may be paraffin wax. In yet another example, the fixation medium may be a vegetable oil. In one example, the fixation medium may include one or more of deca-cyclopentasiloxane, paraffin, vegetable oil.
The silk fabric stays in the color fixing box 3 for 30 to 180 seconds, and the temperature in the color fixing box 3 is maintained at 50 to 130 ℃. The fixation time and the fixation temperature can effectively realize glass fiber formation of the fiber, improve the dye-uptake, and prevent damage caused by excessive heating of the fiber.
In one example, three fixing boxes 3 connected in front and back can be arranged to fix the silk fabric at different temperatures or gradual temperature (for example, the temperature of the first fixing box is 80 ℃, the temperature of the second fixing box is 90 ℃, and the temperature of the third fixing box is 100 ℃), so that the fixing effect is improved, migration is reduced, and the condition that the temperature rises too fast after the low Wen Bumian enters the fixing boxes is avoided.
The fixed silk fabric can be transferred to a re-rolling device 4 for re-rolling. The re-rolling device 4 may comprise a twin roll or a triple roll re-rolling mill, for example. Excess fixing medium on the silk fabric can be rolled out by a double-roller mangle or a three-roller mangle. Illustratively, the re-rolling device 4 may also include a liquid tank. The liquid tank is used for recovering the fixation medium rolled from the silk fabric
After the silk fabric is re-rolled, the silk fabric is conveyed into a washing device 5 for washing. The washing apparatus may be composed of 3-10 groups of washing units 51 connected in series. The washing process of each group of the washing units 51 includes warm water washing, soap washing, hot water washing, and the like. And a tension sensor can be arranged in each group of washing units to ensure that the cloth surface is smooth and no wrinkles are generated in the washing process. Meanwhile, each group of washing units can be additionally provided with a circulating showering system with a temperature control function, the temperature of washing water can be controlled between 20 and 100 ℃ by the temperature control function, and the purposes of circulating water, reducing sewage discharge and water consumption can be realized by circulating showering.
After any one of the washing procedures of warm water washing, soaping, hot water washing and the like is finished, the silk fabric is required to be rolled by a padder to remove excessive water, and then the silk fabric enters the next washing procedure.
Referring to fig. 1, a rolling mill 52 is provided between two adjacent washing units 51. The rolling mill 52 may perform a rolling process on the silk fabric outputted from the previous washing unit 51 to roll off the excessive moisture in the silk fabric.
A re-rolling device 53 is arranged between the last washing unit in the washing device 5 and the cloth discharging device 6. Wherein the heavy rolling device 53 is composed of a double-roll heavy rolling mill or a triple-roll heavy rolling mill. Thus, after the silk fabric is washed, the silk fabric can be re-rolled by the re-rolling device 53, and the water absorbed by the silk fabric is removed by rolling, so that the dyed silk fabric is obtained.
The cloth discharging device 6 can be a cloth discharging frame.
The silk fabric such as 100% silk fabric and high content silk fabric can be dyed by the continuous tie dyeing apparatus provided in example 1. Wherein reactive dyes can be used for dyeing. The reactive dye comprises one or more of reactive black KN-GZRC, reactive black EF-ZBG, reactive black EF-ZBR, X-type reactive dye, K-type reactive dye, KN-type reactive dye, M-type reactive dye, ME-type reactive dye, KE-type reactive dye, etc. A one-dip-one-roll process may be used, or a two-dip-two-roll process may be used.
Next, in a specific embodiment, the silk fabric dyeing method provided by the invention is described by way of example.
Example 2
Dyeing an object: 100% silk fabric.
An aqueous solution containing active black G at a concentration of 60G/L and sodium carbonate at a concentration of 8G/L was prepared as a dye liquor.
The dye liquor is added to the trough of the dyeing apparatus 2 by an automatic feed system. The operation parameters of the continuous tie-dyeing equipment are set, including the cloth feeding speed of the cloth feeding device 1, the rotating speed of the cloth guide roller 32, the temperature in the color fixing box 3, the target cloth cover tension and the like. Wherein the temperature of the fixation box is set to 95 ℃. The target cloth cover tension was set to 1kg. The feed speed of the feed device 1 and the rotation speed of the cloth guide roller 32 were set so that the residence time of 100% silk fabric in the fixing box 3 was 180s and so that the cloth cover tension of 100% silk fabric was maintained at 1kg.
Starting continuous tie-dyeing equipment, enabling 100% silk fabric to sequentially pass through a cloth feeding device 1, padding treatment of a dyeing device 2, fixation treatment of a fixation box 3 and washing treatment of a washing device 5, and then discharging cloth through a cloth discharging device 6, so that dyeing is completed. Wherein, in the washing device 5, 100% silk fabric is washed three times.
For convenience of description, the dyed 100% silk fabric is referred to as a finished fabric.
The main fastness of the finished cloth is tested according to national standard GB T3921-2008 and national standard GB T3920-2008. The test results are shown in Table 1.
TABLE 1
Fastness to soaping Color fastness to changing Fastness to dry rubbing Wet rub fastness
4-5 grade 4-5 grade Grade 5 4-5 grade
In addition, through detection, the level dyeing performance of the cloth can reach the requirement of customers that no migration exists and the left and right chromatic aberration exists. The fabric strength after dyeing is not different from that of grey cloth. The hand feeling of the fabric can meet the requirements of customers after being qualitative.
Example 3
Dyeing an object: a fabric containing 95% silk and 5% wool.
An aqueous solution containing active black G at a concentration of 20G/L and sodium carbonate at a concentration of 5G/L was prepared as a dye liquor.
The dye liquor is added to the trough of the dyeing apparatus 2 by an automatic feed system. The operation parameters of the continuous tie-dyeing equipment are set, including the cloth feeding speed of the cloth feeding device 1, the rotating speed of the cloth guide roller 32, the temperature in the color fixing box 3, the target cloth cover tension and the like. Wherein the temperature of the fixation box is set to 90 ℃. The target cloth cover tension was set to 1.2kg. The feed speed of the feed device 1 and the rotation speed of the cloth guide roller 32 were set so that the residence time of the fabric containing 95% silk and 5% wool in the fixing tank 3 was 60s and so that the cloth cover tension of the fabric containing 95% silk and 5% wool was maintained at 1.2kg.
Starting continuous tie-dyeing equipment, so that fabrics containing 95% of silk and 5% of wool sequentially pass through a cloth feeding device 1, padding treatment of a dyeing device 2, fixation treatment of a fixation box 3 and washing treatment of a washing device 5, and then pass through a cloth discharging device 6 to discharge cloth, thereby finishing dyeing. Wherein, in the washing device 5, the fabric containing 95% silk and 5% wool is washed three times.
For convenience of description, the dyed fabric containing 95% silk and 5% wool is referred to as a finished fabric.
The main fastness of the finished cloth is tested according to national standard GB T3921-2008 and national standard GB T3920-2008. The test results are shown in Table 2.
TABLE 2
Fastness to soaping Color fastness to changing Fastness to dry rubbing Wet rub fastness
4-5 grade 4-5 grade Grade 5 4-5 grade
In addition, through detection, the level dyeing performance of the cloth can reach the requirement of customers that no migration exists and the left and right chromatic aberration exists. The fabric strength after dyeing is not different from that of grey cloth. The hand feeling of the fabric can meet the requirements of customers after being qualitative.
According to the embodiment of the invention, the non-aqueous color fixing medium is used for fixing the fabric, the dyeing accelerant added in dyeing is eliminated, the alkali amount for dyeing is reduced, the damage to the fiber is reduced, and the dye utilization rate is improved. The continuous pad dyeing equipment provided by the embodiment of the invention eliminates the layer difference and migration phenomenon in the traditional dyeing process, improves the dyeing production efficiency and reduces the production cost.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (5)

1. The silk fabric dyeing method is characterized by comprising the following steps of:
padding a first dye liquor containing reactive dye on silk fabric;
in a color fixing box, using a non-aqueous color fixing medium to fix colors of the silk fabric padded with the first dye liquor; and during the fixation, maintaining the cloth surface tension of the silk fabric between 1kg and 100 kg; the color fixing boxes specifically comprise at least two color fixing boxes which are connected front and back; during the color fixation, the temperature of different color fixation boxes in the at least two color fixation boxes is different, and the temperature sequentially rises according to the sequence of the color fixation boxes in the at least two color fixation boxes; the non-aqueous fixing medium is incompatible with water and has a viscosity of less than 200mm 2 And/s, the surface tension is 15-40 dyn/cm, and the boiling point is 100-400 ℃;
and washing and removing the liquid from the silk fabric subjected to color fixation to finish dyeing.
2. The method according to claim 1, characterized in that the silk fabric is a 100% silk fabric, and that the cloth cover tension of the 100% silk fabric is maintained at 1kg during the fixation;
or alternatively, the process may be performed,
the silk fabric is a fabric containing 95% silk and 5% wool, and the cloth surface tension of the fabric containing 95% silk and 5% wool is maintained at 1.2kg during fixation.
3. The method of claim 1, wherein the padding of the first dye liquor comprising reactive dye onto the silk fabric comprises:
the first dye liquor is padded onto silk fabric using a uniformity padder with a pressure set between 0.05MPa and 0.3 MPa.
4. A tie-dyeing apparatus for use in the method according to any one of claims 1 to 3, comprising:
the cloth feeding device (1) is used for receiving and flattening silk fabrics to be dyed;
the dyeing device (2) is used for receiving the silk fabric conveyed by the cloth feeding device (1) and padding the silk fabric by using a first dye liquor containing reactive dye;
a color fixing box (3) for fixing colors of silk fabric padded with a first dye liquor by using a non-aqueous color fixing medium; the color fixing boxes specifically comprise at least two color fixing boxes which are connected front and back; during the color fixation, the temperature of different color fixation boxes in the at least two color fixation boxes is different, and the temperature sequentially rises according to the sequence of the color fixation boxes in the at least two color fixation boxes;
and the washing device (5) is used for washing and deliquifying the silk fabric subjected to the fixation so as to finish dyeing.
5. The apparatus according to claim 4, characterized in that the fixing box (3) has a plurality of cloth guide rolls arranged alternately up and down; the cloth guide rollers are driving rollers which are driven by a motor and are controllable in rotating speed.
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CN107653707A (en) * 2016-07-26 2018-02-02 海宁绿宇纺织科技有限公司 A kind of non-aqueous media color-fixing method suitable for reactive dye
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