WO2022190131A1 - Composition de démontage de couleur pour textiles en coton teints et procédé associé - Google Patents

Composition de démontage de couleur pour textiles en coton teints et procédé associé Download PDF

Info

Publication number
WO2022190131A1
WO2022190131A1 PCT/IN2022/050221 IN2022050221W WO2022190131A1 WO 2022190131 A1 WO2022190131 A1 WO 2022190131A1 IN 2022050221 W IN2022050221 W IN 2022050221W WO 2022190131 A1 WO2022190131 A1 WO 2022190131A1
Authority
WO
WIPO (PCT)
Prior art keywords
stripping
dyed
cotton
minutes
gpl
Prior art date
Application number
PCT/IN2022/050221
Other languages
English (en)
Inventor
Kiruthika KANNAPPAN
Original Assignee
Kannappan Kiruthika
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 Kannappan Kiruthika filed Critical Kannappan Kiruthika
Publication of WO2022190131A1 publication Critical patent/WO2022190131A1/fr

Links

Classifications

    • 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
    • D06P5/13—Fugitive dyeing or stripping dyes
    • D06P5/131—Fugitive dyeing or stripping dyes with acids or bases
    • 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
    • D06P3/58—Material containing hydroxyl groups
    • D06P3/60—Natural or regenerated cellulose
    • D06P3/66—Natural or regenerated cellulose using reactive dyes

Definitions

  • the present invention relates to the field of textiles. More particularly, it relates to fabric treatment process for stripping colour in reactive dyed fabrics /recycled dyed cotton yarns.
  • the present invention has been developed with non-hazardous chemicals to achieve level dyeing in fabrics made with blended reactive dyed recycled cotton yams.
  • Cotton agriculture also has a significant impact on the environment and is the highest or second highest agricultural use of pesticides, herbicides and fungicides.
  • Our society is becoming increasingly aware of the severity of our environmental problems and in particular the scarcity of appropriate landfill sites, and the deleterious impact of waste incineration, industrial discharges, and the use of pesticides and other chemicals in agriculture.
  • it is becoming increasingly important to reduce the amount of waste we generate, recycle more of the waste that is generated, and reduce or eliminate as much toxic chemical use as possible.
  • Sulfite salt is selected like as Sodium sulfite, Sodium bisulfite, Calcium sulfite, Potassium sulphite Sodium hydroxymethane sulfmate - Organic.
  • CN105256619B cationic dye dyed acrylic fabric - Stripping agent preparation Higher fatty acid salt (40%-50%), Wetting agent (5%-10%), Dispersing agent (10%-15%) Higher fatty acid salt is C 16-08 the sodium salt of fatty acid, Wetting agent is anionic surfactant and the Dispersing agent is one of the polyether type non-ionic surfactant and polyvinyl alcohol Higher fatty acid salt is C 16-08 the sodium salt of fatty acid - Organic Prepared stripping agent 4 - 8 g/1
  • Penetrating agent is any one of alkyl benzene sulfonate, aliphatic hydrocarbon and olefin sulfonate, aliphatic alcohol and aliphatic alcohol ether sulfate, aliphatic alcohol and aliphatic alcohol polyoxyethylene ether phosphate.
  • Dispersant is any one of the polyethylene glycol, polyether nonionic surfactant, polyvinylpyrroliodine, polyvinyl alcohol and poly acrylic acid Penetrating agent, Dispersant agent - Organic Cotton Jean: Caustic soda 2-3 g/1, Stripping agent 4-5 g/1, Peregal 0 3-5 g/1, Sodium hydrosulfite 4-5 g/1. Cotton denim: Sodium hydrosulfite 4 g/1, Caustic soda 2g/l, Peregal O 5 g/1, Stripping agent 4.5 g/1.
  • Cotton Jean Adding water with the required volume according to the weight of the fabric according to the bath ratio of l:(20-30), heating to 85-95 deg C, Sequentially adding 2-3 g/1 of caustic soda, 4-5 g/1 of stripping agent, 3-5 g/1 of peregal O and 4- 5 g/1 of sodium hydrosulfite, stirring to dissolve the agents, and then adding the fabric, stirring, circularly or ultrasonically vibrating, preserving heat for 40-50 min, draining and washing with clear water for 2-3 mins.
  • Cotton denim 4 g/1 of sodium hydrosulfite, 2g/l of caustic soda, 5 g/1 of peregal O, 4.5 g/1 of stripping agent, 1:30 of bath ratio, 90 deg C of temperature and 40 mins of time Sodium hydrosulfite, Caustic soda - Hazardous Cotton Jean: 85-95 deg C, Cotton Denim: 90 deg C Cotton Jean: 40-50 mins, Cotton Denim: 40 mins MUR 1:20 to 1:30.
  • stripping composition for reactive dyed fabrics / reactive dyed recycled yams stripping composition comprising of:
  • Dispersing agent - 0.5 gpl; and stripping agent wherein the composition essentially consists of stripping agent 2-propenoic acid, homopolymer based polymer in a weight ratio of 3.0% to 7.0% v/v. on weight of fabric.
  • Figure 1 illustrates the stripping efficiency - recipe reduction - 1. After conventional stripping recipe % and 2. After innovative stripping recipe %.
  • Figure 2 illustrates stripping efficiency - % of reduction - conventional stripping and % of reduction - innovative stripping.
  • SPECTROPHOTOMETER Make: Mecbeth/Xrite Model: Color i7 Version: 9.8.20 Aperture Size: 25MM LAV 17MM 10MM - MAV 6MM - SAV
  • Figure 3 illustrates Terry fabric strength loss comparison lbs- length.
  • Figure 4 illustrates Yellow dyed fabric before stripping. Color values were measured using COLOR SPECTROPHOTOMETER: Make: Mecbeth/Xrite Model: Colori7 Version: 9.8.20 Aperture Size: 25MM LAV 17MM 10MM - MAV. 6MM - SAV Figure 5 Yellow dyed fabric after conventional stripping - color value illustrates Figure 6 illustrates Yellow dyed fabric after innovative stripping - color value
  • Figure 7 illustrates RED dyed fabric before stripping - color value
  • Figure 8 illustrates RED dyed fabric after conventional stripping - color value
  • Figure 9 illustrates RED dyed fabric after innovative stripping - color value
  • Figure 10 illustrates Dark RED dyed fabric before stripping - color value
  • Figure 11 illustrates Dark RED dyed fabric after conventional stripping - color value
  • Figure 12 illustrates Dark RED dyed fabric after innovative stripping - color value
  • Figure 13 illustrates NAVY dyed fabric before stripping - color value
  • Figure 14 illustrates Navy dyed fabric after conventional stripping - color value
  • Figure 15 illustrates Navy dyed fabric after innovative stripping - color value
  • Figure 16 illustrates Dark BLUE dyed fabric before stripping - color value
  • Figure 17 illustrates Dark blue dyed fabric after conventional stripping - color value
  • Figure 18 illustrates Dark blue dyed fabric after innovative stripping - color value
  • Figure 19 illustrates Turquoise blue dyed fabric before stripping - color value
  • Figure 20 illustrates Turquoise blue fabric after conventional stripping - color value
  • Figure 21 illustrates Turquoise blue dyed fabric after innovative stripping - color value
  • the present invention relates to a field of textile and the manufacture of quality fabrics from dyed dyed recycled yams, and in particular relates to the utilization of inexpensive cotton waste materials (used cloths / fabrics) as the source material along with virgin cotton in a process for making recycled cotton yarn.
  • This invention is the use of any and all of these wastes for the manufacture of yarns of high enough quality, and thus higher value, for use in the garment and terry towel manufacturing.
  • this invention involves the use of virgin cotton and fiber from post-consumer dyed fabric / apparel waste in the manufacture of high quality yarns using a process that is economically feasible on a commercial scale.
  • the process of the subject invention involves making finer count - being 8 count and above — cotton yams either 10 / 90% to 50 / 50% completely from used fabric recycled cotton using a combination of virgin and dyed recycled cotton, to produce yarns of quality suitable for the terry products and related items.
  • the principle of this invention is that through processing the waste fibres differently, and mixing with virgin cotton, by twisting the yarn made from these fibres differently, count yams can be made from blends of 10 / 90 to 50/ 50 recycled cotton / virgin cotton.
  • post - consumer shoddy can also be used when blended with fibres of virgin cotton to make the yarns suitable for terry industry.
  • Ionic nature non-ionic; pH of 1% solution - 11 ⁇ 2;
  • Stability Stable to dilute acid and dilute alkalis.
  • the product of the present invention gives excellent stripping agent for cotton fabric/ fiber / yarn dyed with reactive dye. It gives complete stripping of dyes as compared against conventional method of stripping using caustic soda and hydros. This innovative chemical will prevent fabric damage, which is generally observed when stripping is done by conventional method using caustic sod and hydrose.
  • the stripped fabric will have same whiteness in the case of virgin cotton portion and recycled dyed yarn portion due to this innovative stripping process leading to uniform solid dyeing.
  • terry fabric In the cotton textile industry, using the conventional process of pre-treatment of terry fabric involves desizing / scouring / half-bleaching to make it suitable for dyeing with solid even dyeing.
  • Output is the terry towel with 100% solid even colouring (shade as desired).
  • the present invention relates to the processing sequence terry fabric produce with dyed recycled dyed (RCD) / virgin cotton (VC) pile / ground / weft in a general blend ratio may be in the range of 10/90% to 50/50%. Recycled dyed cotton / virgin cotton blend yarn will have different colours like blue, red, navy mixtures of colours etc.
  • grey fabric needs to be pre-treated with desizing/scouring/half bleaching to make it suitable for dyeing with basic whiteness in the range of 60 - 65.
  • the present invention relates to development of new process sequence to make the terry fabric produced with recycled dyed / virgin suitable for dyeing as like 100% virgin cotton with solid even dyeing as like terry towels produced with 100% virgin cotton (i.e., no difference in colouring between the virgin cotton and the recycled dyed cotton).
  • recycled dyed cotton / virgin cotton blend yarn may be used in pile, ground and warp depends on the yarn quality / blend ratio and strength.
  • New process sequence for terry towels produced with recycled cotton / virgin cotton blend to make the fabric suitable for solid dyeing as like is 100% virgin cotton.
  • New process sequence for terry towels produced with RCD /VC blend fabric (Terry fabric with recycled cotton / virgin cotton blend in pile, ground, weft yarn with a blend ratio of 50% RCD / 50% VC to 10% RCD / 90% VC).
  • Output is the terry towel with 100% solid even dyeing as like terry towels with 100% virgin cotton.
  • Treatment of terry fabric with virgin cotton / RCD in pile in soft flow dyeing machine - material to liquor ratio is 1: 5.5.
  • Desizing both pile yam and ground yarns are sized using natural / synthetic sizing chemicals.
  • 1st step is to desize the fabric with 1.0 gpl enzymatic desizing agent / 1 gpl cationic wetting gent at 60 degree Celsius for 30 minutes.
  • Propenoic acid 5.0 - 7.0% OWF (on weight of fabric) / Depends on the colour depth of RCD; Fiber dispersing agent 0.5 gpl;
  • Time - 20 - 30 minutes depends on colour depth and drain.
  • New innovative process has been established for producing terry fabric has yarn with a blend of recycled dyed cotton / virgin cotton blend with solid even dyeing.
  • Degradability of Stripping component 100 % Biodegradable as this composition has GOTS approved organic components. Colour removing efficiency: 90 -95 %. (Yellow 90 % - 95 %) and other components like Red & Blue will be 95 -100 %.
  • Stripping Agent Organic - GOTS approved 2 Propionic acid Homo polymer - Non hazardous Stripping agent
  • Propionic acid Homopolymer is a stripping agent for cotton fabric dyed with reactive dye. It gives excellent stripping of dyes as compared against conventional method of stripping using caustic and hydrose. 2 Propionic acid Homopolymer will prevent fabric damage, which is generally observed when stripping is done by conventional method using caustic and hydrose.
  • Non foaming Wetting, Scouring and detergent designed for the wetting, scouring and bleaching operation of 100 % cotton knits, in high turbulence equipments like jet and softflow dyeing machines.
  • Hemitol SRW can be added undiluted to the application baths. Feed baths should be stirred after prolonged standing.
  • HT Bleach can also be done using the above recipe at 110°C for 30 min. After bleaching one Hot wash at 90°C and cold wash with neutralizing using Acetic Acid should be given. To ensure a trouble-free subsequent dyeing we strong recommend an after treatment with Sarakol PDR 9 Soap cum dispersing agent)
  • Sarakol-PDR is a concentrated polymeric compound which can be readily dissolved to obtain stable solution. Sarakol-PDR is recommended in reactive dyeing by exhaust method. In case of reactive dyes which are having low solubility in presence of salt and alkali and when liquor ratio is low there could be precipitation of dyes during the dyeing, leading to poor colour yield as well as precipitation of dyes on substrate and machine. Addition of Sarakol-PDR overcomes this problem due to its excellent dispersing action. Calcium and Magnessium impurities in the dyebath could also lead to precipitation of dyes as well as poor washing off of hydrolysed dyes at the end of dyeing.
  • Sarakol-PDR Due to its chelating action, Sarakol-PDR prevents such precipitation and also helps in easy removal of hydrolysed reactive dyes at the end of dyeing operation. Sarakol-PDR is also recommended as a washing off agent for reactive dyes in batch operation as well as in continuous operation.
  • Residual salt concentration should be less than 2 g/1 before soaping.
  • Storage Store in cool, ventilated shed away from heat and direct sunlight. Storage temperature should not exceed 35 deg C. Close lids firmly to avoid contact with air and moisture.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)

Abstract

La présente invention concerne un procédé de traitement de tissu et une composition de démontage de la couleur de fils de coton recyclé teints. La présente invention a été développée avec des produits chimiques non dangereux pour obtenir une teinture égalisante de tissus fabriqués avec des fils de coton recyclé mélangés. La composition de démontage comprend 0,3 à 0,5 gpl d'un agent mouillant ; 0,5 gpl d'un agent dispersant ; et un agent de démontage constitué essentiellement d'acide 2-propénoïque, d'un polymère à base d'homopolymère selon un rapport pondéral de 3,0 % à 7,0 % v/v sur le poids du tissu.
PCT/IN2022/050221 2021-03-11 2022-03-10 Composition de démontage de couleur pour textiles en coton teints et procédé associé WO2022190131A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202141010262 2021-03-11
IN202141010262 2021-03-11

Publications (1)

Publication Number Publication Date
WO2022190131A1 true WO2022190131A1 (fr) 2022-09-15

Family

ID=83227500

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2022/050221 WO2022190131A1 (fr) 2021-03-11 2022-03-10 Composition de démontage de couleur pour textiles en coton teints et procédé associé

Country Status (1)

Country Link
WO (1) WO2022190131A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117568110A (zh) * 2023-11-14 2024-02-20 潍坊佳诚数码材料有限公司 一种纺织品涂层清洗涂料及其清洗工艺

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0422683A1 (fr) * 1989-10-13 1991-04-17 Nihon Surfactant Kogyo K.K. Composition de lavage pour articles en fibre de cellulose teints
CN102454126B (zh) * 2010-10-18 2014-04-23 南通斯恩特纺织科技有限公司 活性染料高效环保中性皂洗剂及其制备方法
CN104420371A (zh) * 2013-09-09 2015-03-18 青岛三秀新科技复合面料有限公司 活性染料染棉酸性染料染毛和丝的剥色方法
US9670614B2 (en) * 2011-09-23 2017-06-06 Novozymes A/S Color modification of textile
WO2021013842A1 (fr) * 2019-07-24 2021-01-28 Smart Coloring Gmbh Procédé de coloration réversible et sélective d'un matériau polymère polaire synthétique ; matériau polymère polaire synthétique coloré et article associé

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0422683A1 (fr) * 1989-10-13 1991-04-17 Nihon Surfactant Kogyo K.K. Composition de lavage pour articles en fibre de cellulose teints
CN102454126B (zh) * 2010-10-18 2014-04-23 南通斯恩特纺织科技有限公司 活性染料高效环保中性皂洗剂及其制备方法
US9670614B2 (en) * 2011-09-23 2017-06-06 Novozymes A/S Color modification of textile
CN104420371A (zh) * 2013-09-09 2015-03-18 青岛三秀新科技复合面料有限公司 活性染料染棉酸性染料染毛和丝的剥色方法
WO2021013842A1 (fr) * 2019-07-24 2021-01-28 Smart Coloring Gmbh Procédé de coloration réversible et sélective d'un matériau polymère polaire synthétique ; matériau polymère polaire synthétique coloré et article associé

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117568110A (zh) * 2023-11-14 2024-02-20 潍坊佳诚数码材料有限公司 一种纺织品涂层清洗涂料及其清洗工艺

Similar Documents

Publication Publication Date Title
CN101514304B (zh) 有色纺织品增色洗涤剂
Khatri et al. Sustainable dyeing technologies
CN110904668A (zh) 持久耐黄变高白棉型面料连续加工方法
WO2022190131A1 (fr) Composition de démontage de couleur pour textiles en coton teints et procédé associé
Choudhury Pre-treatment and preparation of textile materials prior to dyeing
Ibrahim et al. Environmentally Sound Dyeing of Cellulose‐Based Textiles
Othman et al. An Eco-friendly Trend of Jute Fabric in Wet Processes of Textile Manufacturing
Ahmed et al. Efficient dyeing mechanism of cotton/polyester blend knitted fabric
EP0033815A2 (fr) Méthode pour contrôler des colorants fortuits indésirables dans un bain de lessive liquide
US20070119001A1 (en) Compositions and methods for dyeing textiles and fabrics
Ramadan Characterization of biobleaching of cotton/linen fabrics
CN113930982B (zh) 涤棉深色织物分散/活性染料一浴法染色工艺
CN107761410A (zh) 天然生态有机植物染牛仔布轧染浆纱生产工艺
CN114318904A (zh) 一种超柔经编布染色工艺
Welham The role of auxiliaries in the dyeing of wool and other keratin fibres
CN111705525A (zh) 一种无臭味黑色牛仔布染色工艺
US3350161A (en) Bleaching cottons by aqueous solutions of urea peroxide
CN103790036A (zh) 一种棉针织品的染色方法
JPH086248B2 (ja) 後練り抜染可能織物の製造方法
JPH076113B2 (ja) 後練り抜染可能織物の製造方法
KR101542710B1 (ko) 과산화물계 표백제의 표백 및 형광염료 염색공정용 백도증진제
WO2023114156A1 (fr) Processus de teinture en une étape de tissu mélangé à base de polyester/fibres naturelles
JP4030095B2 (ja) 一浴精練漂白染色方法
KR20090056663A (ko) 환원 세정 조성물
Shinde et al. Study on the denim wash-down effect of sulphur dye.

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22766555

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22766555

Country of ref document: EP

Kind code of ref document: A1