WO2018199860A2 - Dyeing woven or knitted textile in a stenter machine with sulfur or reactive dyestuff - Google Patents

Dyeing woven or knitted textile in a stenter machine with sulfur or reactive dyestuff Download PDF

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Publication number
WO2018199860A2
WO2018199860A2 PCT/TR2017/050554 TR2017050554W WO2018199860A2 WO 2018199860 A2 WO2018199860 A2 WO 2018199860A2 TR 2017050554 W TR2017050554 W TR 2017050554W WO 2018199860 A2 WO2018199860 A2 WO 2018199860A2
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WO
WIPO (PCT)
Prior art keywords
fabric
dyeing
machine
stenter
sulfur
Prior art date
Application number
PCT/TR2017/050554
Other languages
French (fr)
Other versions
WO2018199860A3 (en
Inventor
Mehmet Arif ŞİRİKÇİ
Original Assignee
Şi̇ri̇kçi̇oğlu Mensucat Sanayi̇ Ve Ti̇caret A.Ş.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Şi̇ri̇kçi̇oğlu Mensucat Sanayi̇ Ve Ti̇caret A.Ş. filed Critical Şi̇ri̇kçi̇oğlu Mensucat Sanayi̇ Ve Ti̇caret A.Ş.
Publication of WO2018199860A2 publication Critical patent/WO2018199860A2/en
Publication of WO2018199860A3 publication Critical patent/WO2018199860A3/en

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Classifications

    • 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
    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics
    • 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

Definitions

  • the present invention is related with dyeing raw textile, denim fabric and knitted fabric with sulfur dyestuff in a stenter machine,
  • the invention is the process of adding minimum one padding machine to the inlet of the stenter machine to dye fabrics with various auxiliary chemicals and sulfur dyes on the stenter and fixing the fabric.
  • the fabrics which are called raw or denim are generally defined as the fabrics woven from yarns such as cotton, polyester, viscose, tencel, modal and lycra, which can be at different unit weights, with a dyed or undyed weft, with generally undyed various braids (dimity, satin, fancy etc)
  • Raw fabrics are mostly dyed with reactive, sulfur, Indigo (top) and dispersed dyestuff.
  • Warps of denim fabrics can be dyed as warps with the surface dyeing method, with reactive, sulfur, indigo, indanthrene and their combinations.
  • the denim fabric formation route consists of: Warp Dye - Sizing - Textile - Finish (Pad Steam - Stenter - Sanforing etc.) and finally qualifying.
  • Sulfur dyeing route in the prior art Pad Steam Washing - Stenter - Pad Steam Dyeing - Stenter - Sanforizing.
  • Raw denim fabric is subjected to proper brushing and singeing before entering the pad steam machine.
  • the raw denim fabric is removed by contacting caustic soda and wetting agent of the undesired foreign substances such as desizing and oil, wax etc. on the pad steam machine.
  • the cellulosic fiber which contacts caustic soda swells up and brightness occurs on the surface of the fabric.
  • the fabric enters the washtub.
  • the pH on the fabric is neutralized by treating the fabric with acid in certain washtubs while the fabric passes through the flooded washtubs. Wash water temperature is 40°C-50°C in general.
  • the fabric passes through the drying drums, it is dried and wrapped in docks, or it is transferred to fabric trolleys.
  • the fabric that exits the Pad Steam machine enters the stenter machine, and width opening action is realized on the fabric, In the meantime, the resilience values of elastic fabrics are fixed in a certain manner.
  • the fabric that exits the stenter machine is submitted to the Pad Steam machine to be dyed. There, it is treated with heat and various chemicals.
  • the fabric does not have affinity to the dye as it is dyed according to the fabric impregnation method.
  • the warp yarns absorb the dye as a slight nuance as they are already dyed, the wefts are dyed more clearly compared to the warps as the weft yarns are undyed,
  • the dye is fixed with various chemicals in the steam or washtubs in the steam unit. After dyeing, the washing water temperature is around 40°C ⁇ 50°C.
  • the fabric is treated with acid in the washtubs to neutralize the pH of the fabric.
  • the fabric passes through the washtubs and the drying drums again, it is dried, wrapped in docks, or it is transferred to fabric delivery trolleys.
  • the dye liquor is discharged in the treatment plant during the preparation of the machine for the washing process.
  • the machine is stopped for cleaning which takes a long time.
  • the spilled chemicals and dyes are sent to the treatment plant and treated.
  • the fabric After dyeing, the fabric is taken back into the stenter machine, and the width and flexibility are adjusted with the most convenient chemical finishing for the fabric.
  • the weft bevel is also adjusted at this stage and the fabric is prepared for sanforizing.
  • Exhaust Dyeing The process of applying long-term and long liquid ratio to textile materials.
  • Pad Steam The machine for continuous dyeing of the textile.
  • the process includes padding, steaming, washing and drying respectively.
  • Stenter Machine A machine which can have different numbers of fixing chambers (7-12 in number) in which drying, fixing, width opening, weft bevel and chemical finishing processes are carried out. The machine differs according to the number of chambers. Each chamber enables width adjustment, fixing and drying of the fabric passing through by means of hot air.
  • Sanforizing Machine This machine provides width-length stability of the fabric. It is used for placing the fabric into the form it is intended to take after a few washes, for giving the fabric the touch and for ironing.
  • Dye lot The color grouping performed by comparing the pieces of fabrics taken from each manufactured dock against the reference fabric to determine whether the color is lighter or darker, in yellow or in blue compared to the reference fabric.
  • Rubbing Fastness Checking whether the fabric's color is resistant against rubbing. It is divided into two as dry and wet.
  • Sulfur Dye The dyeing stuff category which dyes normally in sodium sulfur solution and which contains sulfur atoms in its structure.
  • Reactive Dye The dyestuff which can react with the fiber macro molecules and bind on the fibers with real covalent bonds unlike all other dyestuff.
  • the invention is a method for dyeing woven and knitted fabrics.
  • the objective of the invention is to reduce the existing process flow, reduce water and steam consumption, decrease the treatment load and improve the quality parameters of the physical properties such as fastness values, color and resistance of the fabric. Definit ons of the Figures Describing the Invention
  • the invention herein is a process for dyeing woven and knitted fabrics in the stenter machine.
  • the fabric enters the Pad-Steam machine after singeing and brushing. After treating with proper caustic soda for the process in the padding machine, the fabric enters the washtub to repel the caustic soda and foreign substances on the fabric. After passing the flooded washtubs, the fabric is dried and wrapped on the dock by means of the drying drums. Wash water temperature is generally 40°C-50°C. Here, the objective is to remove the foreign particles on the fabric. Therefore, washing is performed first.
  • the fabric which passes through singeing and brushing is washed in the pad steam.
  • the washed fabric is attached to the stenter machine.
  • Dyeing is realized in one or more dyeing tanks with wringers adapted in front of the stenter machine (the number of tanks may vary optionally).
  • the liquid temperature is in the range of 30-90°C.
  • the dyeing process is realized according to the impregnation method.
  • the fabric is wrung after impregnating the dyestuff.
  • the chamber temperatures of the stenter machine are adjusted according to the process for width opening and fixing, and adherence of the dye on the fabric is ensured.
  • the chemical finishing process is realized in the sanforing machine.
  • the fabric is later washed in the pad steam machine, it is delivered to the stenter machine, its width is opened, and it is fixed and then taken back to the pad steam machine for dyeing.
  • the fabric which was washed in the pad steam machine in an earlier step, is dyed now. While dyeing, the fabric is washed again to remove the dyestuff which cannot hold on to the fabric. Washing is realized in the washing tanks following the dyeing process. Washing temperature is again 40-50°C similar to that of the washing before dyeing.
  • the auxiliary chemicals used in the process are wetting agents, caustic soda and sequestering agents, The caustic chemical is primarily used during the washing step in the pad steam machine, and then in the washing step after dyeing in the pad steam machine,

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Coloring (AREA)

Abstract

The present invention is related to dyeing raw textiles, denim fabric and knitted fabric with sulfur and reactive dyestuff in the stenter machine, The invention is the process of adding at least one padding machine to the inlet of the stenter machine, to dyeing fabrics with various auxiliary chemicals and sulfur dyes on the stenter and fixing said fabric.

Description

The present invention is related with dyeing raw textile, denim fabric and knitted fabric with sulfur dyestuff in a stenter machine, The invention is the process of adding minimum one padding machine to the inlet of the stenter machine to dye fabrics with various auxiliary chemicals and sulfur dyes on the stenter and fixing the fabric.
Background ©f the Invention (Prior Art)
The fabrics which are called raw or denim are generally defined as the fabrics woven from yarns such as cotton, polyester, viscose, tencel, modal and lycra, which can be at different unit weights, with a dyed or undyed weft, with generally undyed various braids (dimity, satin, fancy etc) Raw fabrics are mostly dyed with reactive, sulfur, Indigo (top) and dispersed dyestuff.
Warps of denim fabrics can be dyed as warps with the surface dyeing method, with reactive, sulfur, indigo, indanthrene and their combinations. The denim fabric formation route consists of: Warp Dye - Sizing - Textile - Finish (Pad Steam - Stenter - Sanforing etc.) and finally qualifying. Sulfur dyeing route in the prior art: Pad Steam Washing - Stenter - Pad Steam Dyeing - Stenter - Sanforizing. Raw denim fabric is subjected to proper brushing and singeing before entering the pad steam machine. The raw denim fabric is removed by contacting caustic soda and wetting agent of the undesired foreign substances such as desizing and oil, wax etc. on the pad steam machine. The cellulosic fiber which contacts caustic soda swells up and brightness occurs on the surface of the fabric. To repel the caustic soda and foreign substances on the fabric, the fabric enters the washtub. The pH on the fabric is neutralized by treating the fabric with acid in certain washtubs while the fabric passes through the flooded washtubs. Wash water temperature is 40°C-50°C in general. The fabric passes through the drying drums, it is dried and wrapped in docks, or it is transferred to fabric trolleys. The fabric that exits the Pad Steam machine enters the stenter machine, and width opening action is realized on the fabric, In the meantime, the resilience values of elastic fabrics are fixed in a certain manner.
The fabric that exits the stenter machine is submitted to the Pad Steam machine to be dyed. There, it is treated with heat and various chemicals. The fabric does not have affinity to the dye as it is dyed according to the fabric impregnation method. As the warp yarns absorb the dye as a slight nuance as they are already dyed, the wefts are dyed more clearly compared to the warps as the weft yarns are undyed, To fix the dye on the dyed denim fabric, the dye is fixed with various chemicals in the steam or washtubs in the steam unit. After dyeing, the washing water temperature is around 40°C~50°C. The fabric is treated with acid in the washtubs to neutralize the pH of the fabric. The fabric passes through the washtubs and the drying drums again, it is dried, wrapped in docks, or it is transferred to fabric delivery trolleys.
After the dyeing process, the dye liquor is discharged in the treatment plant during the preparation of the machine for the washing process. The machine is stopped for cleaning which takes a long time. The spilled chemicals and dyes are sent to the treatment plant and treated.
After dyeing, the fabric is taken back into the stenter machine, and the width and flexibility are adjusted with the most convenient chemical finishing for the fabric. The weft bevel is also adjusted at this stage and the fabric is prepared for sanforizing.
The definitions of various terms regarding fabric dyeing are as follows:
- Liquor: The process solution which includes chemical substances.
- Liquor Ratio: Ratio of the material to be dyed, to the solution.
- Impregnation Dyeing: The process of applying short-term and short liquid ratio to textile materials.
Exhaust Dyeing: The process of applying long-term and long liquid ratio to textile materials.
- Wetting agent: The chemicals which enables penetration of the liquor instead of air into the textile material.
- Sequestering Agent: Removes the heavy metal ions (calcium, magnesium etc.) in the solution liquid to form a complex in order to prevent them from damaging the fiber and the stability of the solution, Caustic Soda (Sodium Hydroxide): The substance which contacts the celiuiosic textile product and swells the fiber, thus enables removing the foreign substances such as oil, wax etc. on the material.
Pad Steam: The machine for continuous dyeing of the textile. The process includes padding, steaming, washing and drying respectively.
Stenter Machine: A machine which can have different numbers of fixing chambers (7-12 in number) in which drying, fixing, width opening, weft bevel and chemical finishing processes are carried out. The machine differs according to the number of chambers. Each chamber enables width adjustment, fixing and drying of the fabric passing through by means of hot air.
Sanforizing Machine: This machine provides width-length stability of the fabric. It is used for placing the fabric into the form it is intended to take after a few washes, for giving the fabric the touch and for ironing.
Dye lot: The color grouping performed by comparing the pieces of fabrics taken from each manufactured dock against the reference fabric to determine whether the color is lighter or darker, in yellow or in blue compared to the reference fabric.
Rubbing Fastness: Checking whether the fabric's color is resistant against rubbing. It is divided into two as dry and wet.
Sulfur Dye: The dyeing stuff category which dyes normally in sodium sulfur solution and which contains sulfur atoms in its structure.
Reactive Dye: The dyestuff which can react with the fiber macro molecules and bind on the fibers with real covalent bonds unlike all other dyestuff.
Brief Description and Objectives of the Invention
The invention is a method for dyeing woven and knitted fabrics. Starting off from the known prior art, the objective of the invention is to reduce the existing process flow, reduce water and steam consumption, decrease the treatment load and improve the quality parameters of the physical properties such as fastness values, color and resistance of the fabric. Definit ons of the Figures Describing the Invention
§eksf 1: Workflow chart of the process in the prior art.
§eksf 2i Workflow chart of the invention.
Detailed Description of the Invention
The invention herein is a process for dyeing woven and knitted fabrics in the stenter machine. The fabric enters the Pad-Steam machine after singeing and brushing. After treating with proper caustic soda for the process in the padding machine, the fabric enters the washtub to repel the caustic soda and foreign substances on the fabric. After passing the flooded washtubs, the fabric is dried and wrapped on the dock by means of the drying drums. Wash water temperature is generally 40°C-50°C. Here, the objective is to remove the foreign particles on the fabric. Therefore, washing is performed first.
As can be seen in Figure 1, the process which was realized in 8 steps in the prior art can be realized in 5 steps with the present invention.
In the process of the present invention, briefly, the fabric which passes through singeing and brushing is washed in the pad steam. The washed fabric is attached to the stenter machine. Dyeing is realized in one or more dyeing tanks with wringers adapted in front of the stenter machine (the number of tanks may vary optionally). The liquid temperature is in the range of 30-90°C. The dyeing process is realized according to the impregnation method. The fabric is wrung after impregnating the dyestuff. After the dyeing process, the chamber temperatures of the stenter machine are adjusted according to the process for width opening and fixing, and adherence of the dye on the fabric is ensured. After dyeing in the stenter machine, the chemical finishing process is realized in the sanforing machine.
The fabric is later washed in the pad steam machine, it is delivered to the stenter machine, its width is opened, and it is fixed and then taken back to the pad steam machine for dyeing. The fabric, which was washed in the pad steam machine in an earlier step, is dyed now. While dyeing, the fabric is washed again to remove the dyestuff which cannot hold on to the fabric. Washing is realized in the washing tanks following the dyeing process. Washing temperature is again 40-50°C similar to that of the washing before dyeing. The auxiliary chemicals used in the process are wetting agents, caustic soda and sequestering agents, The caustic chemical is primarily used during the washing step in the pad steam machine, and then in the washing step after dyeing in the pad steam machine,

Claims

1. A process for dyeing woven and knitted fabrics in a stenter machine with sulfur dyestuff characterized in that;
- The fabric which passes through singeing and brushing is washed in pad steam,
- The washed fabric is attached to the stenter machine,
Dyeing is realized in at least one dyeing tank with wringers adapted in front of the stenter machine,
- The fabric is wrung after impregnating the dyestuff,
- After the dyeing process, the chamber temperatures of the stenter machine are adjusted according to the process for width opening and fixing to ensure adherence of the dye on the fabric,
- After dyeing in the stenter machine, the chemical finishing process is carried out in the sanforing machine,
2. A process according to Claim 1, characterized in that the liquid temperature is in the range of 30-90°C.
3. A process according to Claim 1, characterized in that the dyeing process is carried out according to the impregnation method. #
4. A process according to Claim 1, characterized in that other auxiliary chemicals are also used in addition to sulfur dyestuff.#
PCT/TR2017/050554 2016-11-08 2017-11-07 Dyeing woven or knitted textile in a stenter machine with sulfur or reactive dyestuff WO2018199860A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2016/15923A TR201615923A2 (en) 2016-11-08 2016-11-08 DYEING OF KNITTED OR WOVEN FABRICS WITH SULFUR (SULFUR) OR REAGENT DYEING MATERIALS
TR2016/15923 2016-11-08

Publications (2)

Publication Number Publication Date
WO2018199860A2 true WO2018199860A2 (en) 2018-11-01
WO2018199860A3 WO2018199860A3 (en) 2019-01-17

Family

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PCT/TR2017/050554 WO2018199860A2 (en) 2016-11-08 2017-11-07 Dyeing woven or knitted textile in a stenter machine with sulfur or reactive dyestuff

Country Status (2)

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TR (1) TR201615923A2 (en)
WO (1) WO2018199860A2 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1635139B2 (en) * 1967-06-24 1977-01-27 Artos Dr .-Ing. Meier-Windhorst KG, 2000 Hamburg METHOD AND DEVICE FOR CONTINUOUS PAINT AND HEAT TREATMENT OF TEXTILE SHEETS
CN104790151B (en) * 2015-04-01 2017-01-18 江阴市恒亮纺织有限公司 Continuous color knitted jean fabric pad dyeing process

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WO2018199860A3 (en) 2019-01-17

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