EP3924547A1 - Fibre teinte dans la masse et procédé pour sa fabrication - Google Patents

Fibre teinte dans la masse et procédé pour sa fabrication

Info

Publication number
EP3924547A1
EP3924547A1 EP20703503.1A EP20703503A EP3924547A1 EP 3924547 A1 EP3924547 A1 EP 3924547A1 EP 20703503 A EP20703503 A EP 20703503A EP 3924547 A1 EP3924547 A1 EP 3924547A1
Authority
EP
European Patent Office
Prior art keywords
fiber
cellulose
fibers
solution
color pigment
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP20703503.1A
Other languages
German (de)
English (en)
Inventor
Friedrich Suchomel
Peter Wessely
Claudia MOMMER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lenzing AG
Original Assignee
Lenzing AG
Chemiefaser Lenzing AG
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 Lenzing AG, Chemiefaser Lenzing AG filed Critical Lenzing AG
Publication of EP3924547A1 publication Critical patent/EP3924547A1/fr
Pending legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/04—Pigments
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
    • D01F2/08—Composition of the spinning solution or the bath
    • D01F2/12—Addition of delustering agents to the spinning solution
    • D01F2/14—Addition of pigments
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/03—Polysaccharides or derivatives thereof
    • D06M15/11—Starch or derivatives thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/356—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of other unsaturated compounds containing nitrogen, sulfur, silicon or phosphorus atoms
    • D06M15/3562—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of other unsaturated compounds containing nitrogen, sulfur, silicon or phosphorus atoms containing nitrogen
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/61—Polyamines polyimines
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/04—Vegetal fibres
    • D06M2101/06—Vegetal fibres cellulosic

Definitions

  • This invention relates to a spun-dyed man-made cellulosic fiber with incorporated color pigment which contains a polycationic compound on its outer surface. Furthermore a method for the manufacture of such a fiber is disclosed.
  • PolyDADMAC Poly(diallyldimethylammonium chloride) (“PolyDADMAC”) dye-fixative (see e.g. Yu Y. and Zhang Y., Review of Study on Resin Dye-Fixatives on Cotton Fabrics, Modern Applied Science, Vol. 3, No. 10 (October 2009)) and quaternary ammonium salts (see e.g. Sharif et al. Role of quaternary ammonium salts, Color. Technol., 123 (2007), p. 8-17) are described as possible dye-fixative agents.
  • cotton obviously is not a spun-dyed fiber because cotton is not made by a solution spinning process.
  • WO 2004/081279 A1 discloses a method for dyeing cellulosic fibers, wherein a polycationic compound is incorporated into the cellulosic fibers during their manufacture.
  • the cationic cellulose fibers thus obtained show improved affinity for direct dyestuffs, acid dyestuffs and reactive dyestuffs.
  • the fibers according to this invention are not spun-dyed fibers and the applied dyestuffs are not pigments.
  • EP 0683251 A1 discloses numerous polycationic compounds suitable for the process according to WO 2004/081279 A1.
  • polycationic compounds can decrease the spinnability of the spinning solution significantly, in particular in the viscose process.
  • long-chain polycationic compounds induce too early coagulation of the cellulose.
  • Polycationic compounds with short chain length on the one hand have insufficient pigment fixation effect, on the other hand they are washed out in the spin bath and pollute the spin bath cycles.
  • WO 2014/118804A1 discloses black colored man-made cellulosic fibers and a black colorant formulation for preparing the same in a viscose process.
  • a formulation containing among others a black color pigment, i.e. carbon black, as well as a surface active agent, an anti coagulating agent and a steric stabilizer is mixed into a viscose dope.
  • the surface active agent as well as the anti-coagulating agent should be anionic substances.
  • WO 2014/118804A1 is silent regarding the specific spinning process, it can be assumed that the viscose dope is extruded and further spun according to a regular viscose process. The black colored fibers were then washed for in total 15 minutes at the remarkably high washing bath temperature of 90°C with water, subsequently sulphuric acid and finally sodium hydroxide solutions.
  • the fiber according to the invention shows a zeta potential of zero or positive at a pH of 3.0 or lower. All presently known spun-dyed cellulosic man-made fibers have a negative zeta potential.
  • the incorporated color pigment in particular is a negatively charged color pigment, e.g. carbon black, but among others also indigo in the oxidized form would be suitable.
  • the color pigment is carbon black.
  • the fiber according to the invention has a positive zeta potential in an acidic environment and at any pH value the zeta potential is significantly more positive (or less negative) than that of the untreated fiber without polycations.
  • the zeta potential of a fiber treated according to the invention may be at least 1 mV more positive than that of the same fiber, i.e. containing the same incorporated pigment, but without the treatment of the invention, at the same pH value. Typically it may be about 3mV more positive over the whole pH range from pH 3 to pH 11.
  • the polycationic compound is one out of the group containing polymeric quaternary ammonium compounds, in particular poly(diallyldimethylammonium chloride), cationically modified starch and polyethylenimines.
  • polymeric quaternary ammonium compounds in particular poly(diallyldimethylammonium chloride), cationically modified starch and polyethylenimines.
  • a high electrical charge density is beneficial because it allows obtaining the intended effect with low quantity of the polycationic compound.
  • Polyvinylpyrollidon is a polycation as well, but shows significantly less performance in the present invention.
  • Polyamines first have to be treated with an acid, e.g. acetic acid, before they can be applied to the fibers, which is a practical disadvantage.
  • Poly(diallyldimethylammonium chloride) is a harmless compound which is e.g. used in cosmetics.
  • the fiber contains between 0,50 and 0,02 %(w/w), preferably between 0,2 and 0,04%(w/w), of the polycationic compound, in relation to the bone dry weight of the fiber.
  • the fiber shows a bleeding number of between 4.0 and 5.0 according to the bleeding test.
  • the fiber is a xanthate fiber.
  • a xanthate fiber in the context of this invention is a cellulosic fiber which was manufactured by extrusion of a spinning solution containing a dissolved cellulosic compound into a spin bath, wherein the cellulosic compound is cellulose xanthate and wherein the cellulose xanthate is regenerated into cellulose while passing the spin bath.
  • the most common xanthate fibers are called“Viscose” resp.“Modal” according to BISFA
  • Viscose fiber is produced by extruding a solution of a cellulose derivative through very small spinneret holes and then coagulating by changing the pH and by converting the derivative back to cellulose.
  • Cellulose as wood pulp is usually used as the starting material although other sources of cellulose such as bamboo and cotton linters are also used.
  • the wood pulp is steeped in sodium hydroxide and then reacted with carbon disulphide to convert it to cellulose xanthate.
  • the xanthate is dissolved in a sodium hydroxide solution to yield a viscous, golden colored liquid which is commonly called viscose.
  • the viscose is de-aerated and filtered. It is then extruded through precious metal spinnerets into a spinbath - a so-called wet spinning technology - consisting of sulphuric acid, sodium sulphate and zinc sulphate.
  • the acid reacts with the sodium hydroxide in the viscose to cause coagulation of the cellulose xanthate.
  • the acid also reacts with the cellulose xanthate converting it back to cellulose.
  • the fibre may then be cut into lengths to form staple fibre or it may be kept as continuous filament or tow depending on the design of the spinning machine and the product required.
  • the fibre is washed to remove non-cellulose products of the reaction such as sodium sulphate and hydrogen sulphide, finished with a spin finish and anti-stat to aid downstream processing and dried.
  • Modern viscose plants are designed to recover as much of the by-products of the process as possible. This is essential to avoid environmental pollution and to ensure the safety of the workforce and surrounding community. Better recovery and recycling of by-products can also give a positive economic benefit.
  • Modal fibre is a high wet modulus fibre produced using a modified version of the viscose process.
  • An additive is mixed with the spinning solution which slows down the regeneration of the cellulose during spinning. Together with modified spinbath and viscose composition, the additive allows the fibre to be stretched to a much greater extent than normal viscose. This gives a fibre with a higher orientation which is stronger than viscose and has a modulus closer to that of cotton.
  • Modal fibre is often used in blend with cotton to give softer fabrics than would be made with cotton alone. It is used widely in knitted fabrics for lingerie and ladies apparel.
  • Lyocell is produced by a solvent spinning process.
  • the solvent is a mixture of an amine oxide, in particular N-methylmorpholine-N-oxide (“NMMO”) which is non-toxic, in water.
  • NMMO N-methylmorpholine-N-oxide
  • a slurry of cellulose in a mixture of amine oxide and water is prepared. Water is removed from the slurry by evaporation and as the water content decreases, the cellulose dissolves in the amine oxide producing a solution which is a viscous liquid above 80°C.
  • the solution is extruded through spinneret holes via an air gap into an aqueous coagulation bath - a so-called dry-jet wet spinning technology.
  • the solvent is diluted by the water and the cellulose coagulates to form a fibre.
  • the fibre is washed to remove any amine oxide solvent, cut into staple fibre, finished with a lubricant and an antistatic agent and then dried.
  • the tow of newly formed fibre is cut into staple fibre of the required length and then washed on a moving wash bed. The washed fibre is dried in a flatbed dryer.
  • lyocell is produced as a continuous filament yarn by winding a bundle of filaments onto a package for subsequent use.
  • lyocell is produced directly as a nonwoven fleece by using a solution-blowing extrusion spinneret and subsequent coagulation, washing and winding.
  • the fiber is a Modal fiber (according to the BISFA terminology).
  • the fiber is a Lyocell fiber (according to the BISFA
  • a fiber according to the invention which is dispersed in water may not show neutral behavior but may influence the pH value of the water. This effect can be measured easily and is called the“fiber pH”. The skilled in the art may consider this among others in further fiber processing within the textile chain.
  • the fiber pH of the fiber according to the invention is higher than 6.1. It may be preferably lower than 8,5 and in particular may be between 6.1 and 7.3.
  • Another aspect of the present invention is a method for the manufacture of a spun-dyed man-made cellulosic fiber with incorporated color pigment with the following steps: a. Preparation of a spinning solution containing cellulose and at least one color pigment,
  • step g. Drying, wherein in the treatment bath of step g. the fiber fleece is treated with a solution of a polycationic compound.
  • a side effect is that only about half of the spin finish concentration in the spin finish bath is needed compared to the finishing of same fibers without PDADMAC treatment.
  • the invention may be implemented at the bleaching stage of a conventional aftertreatment unit, because spun-dyed fibers, in particular for textile applications, require no bleaching.
  • the incorporated color pigment in particular is a negatively charged color pigment, e.g. carbon black, but among others also indigo in the oxidized form would be suitable.
  • the color pigment is carbon black.
  • poly(diallyldimethylammonium chloride), cationically modified starch and polyethylenimines are examples of polycationic compounds.
  • PolyDADMAC poly(diallyldimethylammonium chloride)
  • the fibers between step c. and step g. always contain at least 50%(w/w), preferably at least 60%(w/w) water in relation to the cellulose content. Usually they contain significantly more water, due to the nature of the process steps. For example after coagulation the fibers are highly swollen and may contain more than
  • the cellulose- containing spinning solution is a solution of the xanthate type - i.e. either according to the viscose process or according to the modal process, as described above - and step b. is performed according to a wet spinning technology and wherein the fiber tow is guided through a second drawing zone between step c. and step d..
  • the cellulose-containing spinning solution is a solution of the lyocell type and step b. is performed according to a dry-jet wet spinning technology.
  • step g. is characterized by the following parameters: a.
  • the polycation concentration in the treatment bath is between 0,1 and 10,0 g/l, preferably between 0,5 and 2,0 g/l, most preferably between 0,6 and 1 ,5 g/l,
  • a treatment time in the treatment bath of between 10 and 120 seconds, preferably between 45 and 135 seconds
  • Some commercial viscose fiber plants have aftertreatment units which allow a treatment time of about 60 seconds.
  • the polycation concentration required in the treatment bath depends on the content of the color pigment in the fibers, which itself depends on the fiber titer. In general thinner fibers, i.e. fibers with a lower fiber titer, need a higher pigment concentration than thicker fibers due to various optical effects depending on the fiber diameter and fiber surface. For example if a 1 ,5dtex modal fiber has a carbon black content of 4,3%(w/w), then a 1 ,0dtex modal fiber needs a content of 4,9%(w/w) of the same carbon black pigment in order to achieve the same black appearance in the end products (yarns, fabrics, garments). A thicker fiber, e.g. 1 ,7dtex viscose, will only require 3,8%(w/w) of the same carbon black pigment. Accordingly to obtain a bleeding number of 5,0, said 1 ,5dtex modal fiber had to be treated with a PolyDADMAC
  • Step g. may be characterized by a ratio of fiber mass to treatment liquid of between 1 :0,1 and 1 :5, preferably between 1 :0,5 and 1 :4, more preferably between 1 :0,8 and 1 :3.
  • PolyDADMAC with a molecular weight of more than 25.000 Dalton may be used.
  • the molecular weight may be lower than 1.000.000 Dalton, preferably between 50.000 and 1.000.000 Dalton; if the molecular weight is higher, then the viscosity of the treatment liquid becomes too high and cannot be used effectively according to the invention.
  • a molecular weight of 100.000 Dalton gives no significant viscosity increase; 400.000 Dalton still give no problems in terms of increased viscosity.
  • the fiber samples are loosened by hand to obtain good accessibility for the liquid.
  • 200ml of demineralized water are poured into a Labomat beaker of a Mathis laboratory dyeing device and are heated up to 85°C as fast as possible.
  • 5g of the loosened fiber sample is put into the beaker and the whole beaker content is heated up to 98°C as fast as possible, kept at this temperature for 5 minutes and subsequently cooled down to 70°C as fast as possible.
  • the water is poured into a 100ml glass bottle (colorless glass) until the bottle is completely filled. The bottle is allowed to cool down to room temperature.
  • the color of the water is then compared to a grey scale according to (ISO 105-A03: 1993; augmented scale including four half-steps and, thus, 9 steps).
  • the value obtained according to this ISO standard will be between 1 and 5 and, for the purposes of this invention, is called“bleeding number”. A bleeding number of 5 means that there is no bleeding at all.
  • EKA Electrokinetic Analyzer
  • the streaming solution is used to rinse the Electrokinetic Analyzer (EKA) device, and then discarded. 500 ml of the streaming solution is used for the zeta potential measurements.
  • the measuring cell of the Electrokinetic Analyzer (EKA) device is cylindrical with an inner diameter of 2 cm.
  • the pre wet fiber sample is placed in the approximate middle of the cell, and is book- ended on both sides by Ag/AgCI electrodes.
  • the electrodes have perforations that allow the flow of streaming solution through the fiber sample.
  • the fiber sample has to be tightly packed to ensure that there is no significant movement of the fibers with the flow of the streaming solution. The packing density can be controlled by the distance between the two electrodes, which in these measurements was between 0.5-0.6 cm.
  • the packing density was between 0.27-0.32 g/cm3 in these measurements. It is ensured there is no air trapped in the fiber sample by circulating the streaming solution through the fiber sample, and the measurement is started with the onboard software of the Electrokinetic Analyzer (EKA) device.
  • the measurements were performed as the streaming solution pH was altered from the initial value of pH 11 to pH 3 in pH0.25 unit steps by the addition of 0.1 M HCI. This is performed with an autotitrator under software control (available among others from company Anton Paar/Austria.
  • the streaming solution is replaced with a solution of 0.1 M KCI, and the solution is flushed through the system with repeated rinses.
  • the nitrogen content of the fibers was measured with a LECO FP 328 nitrogen analyzer (supplier: LECO Corporation/Saint Joseph, U.S.A.) according to the Dumas method.
  • the fibers were used in a conditioned state, conditioned until equilibrium is reached in a standard atmosphere at 20°C and 65% relative air humidity. The nitrogen content is given in relation to the weight of the fibers in conditioned state.
  • Fibers of a linear density of 1 ,5dtex were manufactured according to a modal process as described in AT 287905 B, with a carbon black content of 4,3%(w/w). After coagulation the fiber tow was drawn, washed with water, cutted to a staple length of 39mm and laid down on the sieve belt of a conventional aftertreatment line in order to form a fiber fleece. The fiber fleece was washed again with water and subsequently impregnated in a separate stage of the aftertreatment line for a retention time of 60 seconds with a treatment liquid containing a PolyDADMAC, at a PolyDADMAC concentration in the treatment liquid according to Table 1.
  • the PolyDADMAC was supplied by company SNF (specification: “ ⁇ 100.000 Dalton”).
  • the fiber fleece was washed, most of the liquid phase squeezed off and finished with a spin finish at 5 g/l spin finish in the bath liquid. Thereafter the fibers were evaluated by the bleeding test for bleeding.
  • the results are given in Table 1 ; the colors of the washing waters from the bleeding test are shown in Fig. 1 ; the numbers are the numbers of the examples;“0” is pure water. Acceptable fibers must have a bleeding number of 4 or higher.
  • Example 1 comparative, no polycationic treatment
  • Example 4 comparative, no polycationic treatment
  • results are shown in Figure 2.
  • the fiber according to the invention has a positive zeta potential in an acidic environment and at any pH value the fiber surface is significantly more positive (or less negative) than the untreated fiber without polycations.
  • the zeta potential the presence of the polycations can be detected over the whole pH range.
  • Example 1 showed a nitrogen content of 0,015 % (w/w)
  • Example 2 showed 0,018% (w/w)
  • Example 4 showed 0,022% (w/w).
  • Fibers with 1 ,0dtex resp. 1 ,7dtex were manufactured according to the same method as in Example 1 (see Table 1 ).
  • a 1 ,0dtex modal fiber needs a content of 4,9%(w/w) of the same carbon black pigment in order to achieve the same black appearance in the end products (yarns, fabrics, garments).
  • a thicker fiber, e.g. 1 ,7dtex viscose will only require 3,8%(w/w) of the same carbon black.
  • Polycation concentration in the treatment bath and fiber properties see Table 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Artificial Filaments (AREA)

Abstract

La présente invention concerne une fibre cellulosique artificielle teinte dans la masse avec un pigment coloré incorporé qui contient un composé polycationique sur sa surface externe. L'invention concerne en outre un procédé de fabrication d'une telle fibre.
EP20703503.1A 2019-02-15 2020-02-13 Fibre teinte dans la masse et procédé pour sa fabrication Pending EP3924547A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19020073.3A EP3696317A1 (fr) 2019-02-15 2019-02-15 Fibre teinte dans la masse et son procédé de fabrication
PCT/EP2020/053794 WO2020165363A1 (fr) 2019-02-15 2020-02-13 Fibre teinte dans la masse et procédé pour sa fabrication

Publications (1)

Publication Number Publication Date
EP3924547A1 true EP3924547A1 (fr) 2021-12-22

Family

ID=65685096

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19020073.3A Withdrawn EP3696317A1 (fr) 2019-02-15 2019-02-15 Fibre teinte dans la masse et son procédé de fabrication
EP20703503.1A Pending EP3924547A1 (fr) 2019-02-15 2020-02-13 Fibre teinte dans la masse et procédé pour sa fabrication

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP19020073.3A Withdrawn EP3696317A1 (fr) 2019-02-15 2019-02-15 Fibre teinte dans la masse et son procédé de fabrication

Country Status (4)

Country Link
EP (2) EP3696317A1 (fr)
CN (1) CN113412350A (fr)
TW (1) TW202041745A (fr)
WO (1) WO2020165363A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116657264A (zh) * 2023-06-01 2023-08-29 潍坊欣龙生物材料有限公司 一种提高黑色纤维素纤维的色深度和光泽度的方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB885462A (en) * 1958-01-28 1961-12-28 Courtaulds Ltd Improvements in and relating to the production of coloured filaments, threads and the like from viscose
AT287905B (de) 1968-09-20 1971-02-10 Chemiefaser Lenzing Ag Verfahren zur Herstellung von Faden aus regenerierter Cellulose
JPS63303108A (ja) * 1987-06-03 1988-12-09 Nippon Shokubai Kagaku Kogyo Co Ltd 原液染ビスコ−スレ−ヨン用着色剤
ATE168143T1 (de) 1994-05-17 1998-07-15 Dystar Textilfarben Gmbh & Co Aminierung von cellulosischen synthesefasern
GB2337957A (en) 1998-06-05 1999-12-08 Courtaulds Fibres Method of manufacture of a nonwoven fabric
AT413825B (de) 2003-03-13 2006-06-15 Chemiefaser Lenzing Ag Verfahren zum färben einer mischung aus zwei oder mehr unterschiedlichen fasertypen
DE102005049015A1 (de) * 2005-10-11 2006-03-30 Gebr. Becker Gmbh Kationisch ausgerüstetes Textilmaterial und seine Verwendung
WO2014118804A1 (fr) 2013-01-29 2014-08-07 Aditya Birla Science & Technology Company Limited Fibre colorée en noir et formulation de colorant noir pour préparer ladite fibre
ES2663483T3 (es) * 2013-03-19 2018-04-12 Mitsubishi Rayon Co., Ltd. Uso de un agente de cationización, método para fijar firmemente partículas insolubles en agua y método para producir material teñido
AT515736B1 (de) * 2014-04-07 2016-06-15 Chemiefaser Lenzing Ag Farbige Fasermischungen und deren Verwendung
CN104532408A (zh) * 2014-09-24 2015-04-22 江苏金太阳纺织科技有限公司 阳离子接枝改性无盐染色再生纤维素纤维的制备方法

Also Published As

Publication number Publication date
TW202041745A (zh) 2020-11-16
CN113412350A (zh) 2021-09-17
EP3696317A1 (fr) 2020-08-19
WO2020165363A1 (fr) 2020-08-20

Similar Documents

Publication Publication Date Title
US5403530A (en) Elongate member production method
KR102132893B1 (ko) 증가된 피브릴화 경향성을 지니는 폴리사카라이드 섬유 및 이의 제조 방법
KR102132886B1 (ko) 폴리사카라이드 섬유 및 이의 생산 방법
CN108251904A (zh) 多糖纤维及其制备方法
JPH08501356A (ja) セルロースファイバ
EP2382344A2 (fr) Filaments et fils de mélanges de fibres et articles fabriqués à partir de ceux-ci
US5653931A (en) Process for the production of cellulose moulded bodies
TW202314071A (zh) 用於製造再生纖維素纖維之冷鹼法的改良
KR20210096602A (ko) 라이오셀 섬유의 처리 방법
TW201938859A (zh) 具有仿膠絲性質的萊纖纖維
EP3924547A1 (fr) Fibre teinte dans la masse et procédé pour sa fabrication
KR20220037512A (ko) 리오셀 스테이플 섬유의 제조 방법
JPH09505120A (ja) セルロース成形体の製造方法
TW201942429A (zh) 毛球形成減少的萊纖纖維
KR20230084279A (ko) 셀룰로오스 섬유의 제조 방법
TW201938669A (zh) 具新穎剖面的萊纖纖維
WO2020074228A1 (fr) Marquage d'un matériau cellulosique régénéré
CN113242917B (zh) 从纤维素长丝纱线或纤维中去除液体的方法
Veit Cellulosic man-made fibers
CN117210987B (zh) 一种基于醋酸长丝和胶原蛋白锦纶长丝的复合纱及其制备方法
CN109468698B (zh) 一种抗菌莫代尔纤维的制备方法
TR202013367A2 (tr) Cupra rejenere selüloz ve üreti̇m yöntemi̇
TW202319603A (zh) 用於製造再生纖維素纖維之冷鹼法的改良

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210915

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR