EP2160489A2 - Verfahren zur vergilbungsinhibierung - Google Patents
Verfahren zur vergilbungsinhibierungInfo
- Publication number
- EP2160489A2 EP2160489A2 EP08760908A EP08760908A EP2160489A2 EP 2160489 A2 EP2160489 A2 EP 2160489A2 EP 08760908 A EP08760908 A EP 08760908A EP 08760908 A EP08760908 A EP 08760908A EP 2160489 A2 EP2160489 A2 EP 2160489A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- polyamide
- carbodihydrazide
- containing material
- polyamides
- cdh
- 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.)
- Granted
Links
Classifications
-
- 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
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/402—Amides imides, sulfamic acids
- D06M13/422—Hydrazides
-
- 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
- D06M2101/10—Animal fibres
- D06M2101/12—Keratin fibres or silk
-
- 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
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/34—Polyamides
-
- 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
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/25—Resistance to light or sun, i.e. protection of the textile itself as well as UV shielding materials or treatment compositions therefor; Anti-yellowing treatments
Definitions
- the invention relates to highly yellowing-resistant polyamide-containing materials having surface finish containing carbodihydrazide, a method of finishing, and the use of appropriately prepared polyamide-containing materials.
- Polyamides have a sufficiently high weathering and age resistance for a variety of applications. If desired, in outdoor applications by a special coloring such as carbon black, the durability can be further increased.
- Dyeing with soot easily avoids the problem of yellowing, which frequently occurs in plastics - but does not eliminate it. This becomes particularly important if one is not interested in a very dark color of the finished plastic part. In such cases, a yellowing, caused either by oxidative aging processes or even by the thermal treatment during the manufacturing process is negatively noticeable.
- thermosetting in which the product in question is subjected to a heat treatment with hot water, steam or dry heat and thus shrinks, whereby a subsequent undesirable dimensional change is prevented. Temperatures of 200 0 C and above are quite common here.
- Molden in which the materials used are brought by heat of a (press) tool (ie, by contact heat) in an appropriate form. This method is used, for example, in the production of brassieres.
- the yellowing does not arise here only with untreated or optically brightened polyamide-containing material, which is usually yellow-white or milk-white depending on the type.
- EP 0 436 470 B1 describes in this connection a photochemical stabilization of dyed polyamide fiber materials by the use of various complexes of bisazomethines, acylhydrazones, semicarbazones or thiosemicarbazones of aromatic carbonyl compounds with copper as the central metal.
- the use of the toxic heavy metal copper makes corresponding textile auxiliaries not only environmentally friendly but also health-friendly aspects of concern.
- JP 60-81370 describes a process for treating textile products of polyamide fibers or polyamide fiber blends which have been dyed with acidic or metal-containing dyes.
- the thus dyed textile products are treated with an antioxidant from the group of carbazides or hydrazines, in particular 1,6-hexamethylene bis (N, N-dimethylsemicarbazide) and adipic dihydrazide [ADH].
- WO 2006/045721 A1 describes predominantly dicarboxylic acid bishydrazides, and of these in particular ADH, for improving the aging stability of undyed, optically brightened or natural or synthetic polyamide fiber materials dyed with reactive or disperse dyes, with the exception of metal complex dyes.
- a disadvantage of the last two methods is in particular the fact that for a sufficient yellowing inhibition a relative large amount of textile adjuvant must be used. From the relatively low water solubility of the excipient, there is a further limitation.
- the object of the present invention was therefore to provide a more effective antioxidant for yellowing inhibition. Furthermore, the antioxidant of the invention should have much lower um shimmer- and / or harmful properties. Of course, both factors are mutually dependent, because an increased effectiveness implies the use of a lower amount of the antioxidant, which generally results in a significantly lower environmental and / or health burden.
- the object underlying the invention is solved by a polyamide-containing material having a surface finish containing carbodihydrazide [CDH].
- surface finishing means a refining of the material in question, in which case the CDH, in contrast to a surface coating, may also be on the inner surface of the material (caused, for example, by diffusion of the CDH under the equipment conditions).
- the polyamide-containing material need not necessarily be an untreated or undyed material. It is also quite possible that it is an optically brightened material or colored with reactive, acid, disperse or metal complex dyes.
- Preferred optical brighteners include the following compounds: stilbene-based compounds, especially alkylation products of 4,4'-diaminostilbene-2,2'-disulfonic acid; Compounds in which two heteroaromatic radicals are linked to one another via an ethylene bridge; Coumarin derivatives, in particular having an amino group or an N-heterocycle instead of the amino group; l, 3-diphenyl-2-pyrazolines; Naphthalimides, especially N-methyl-4-methoxynaphthalimide; Compounds containing a fused aromatic and a heteroaromatic, in particular 2,4-dimethoxy-6- (1-pyrenyl) -1, 3,5-triazine.
- Preferred dyes are common dyes for polyamides, especially acid and metal complex dyes.
- the polyamide-containing material can contain not only natural polyamides, in particular wool and / or silk, but also synthetic polyamides.
- synthetic polyamides according to the present invention are: polyamide [PA] 4, PA 5, PA 6, PA 11, PA 12, PA 6.6, PA 6.10, PA 6.12, PACM 12, polyaramids such as Nomex and Kevlar, copolyamides such as PA 66/6 and PA 11/12 and block copolymers of polyamides and other polymers, in particular polyethers.
- constituents of the polyamide-containing material are, in addition to polyamides, other polymers, in particular polyesters, polysaccharides, in particular cotton and / or viscose, polyurethanes and / or polyolefins, and also auxiliaries and / or effect substances customary for polymers, for example antistatic agents, colorants, flame retardants, fillers Nucleating agents, pigments, reinforcing fibers and / or plasticizers possible.
- the polyamide-containing material according to the invention can be present in the form of fibers, nonwovens, mesh, woven or knitwear and, as such, can also be further processed into secondary products.
- the object underlying the invention is achieved by a process for finishing surfaces of polyamide-containing material, which comprises contacting the carbodihydrazide dissolved or dispersed in a liquid with the surface and subsequently removing the liquid ,
- the carbodihydrazide solution or dispersion can be brought into contact with the surface by the pulper or, in particular, by padding (also known as padding).
- padding also known as padding.
- the padding process offers in comparison to the exhaust especially under Environmental aspects have great advantages, since it usually requires less solvent. In addition, it also ensures a more homogeneous application.
- the carbodihydrazide can be applied in the process according to the invention before staining or optical brightening. However, it is preferred if this application step is followed by a possible lightening and / or coloring, since only then is the antioxidant used optimally utilized.
- a solvent or dispersant for the carbodihydrazide is used in the process according to the invention advantageously water.
- water have high solubility for CDH and the other common additives contained in the liquor, it also has the advantage of high environmental compatibility.
- the amount of CDH in the liquor should be adjusted to a range of 0.1 g / L to 20 g / L, in particular from 0.5 to 10 g / L.
- Lower concentrations have the disadvantage that the CDH-containing liquor would have to be applied several times to the polyamide-containing material in order to achieve the desired efficiency. Higher concentrations are not required for reasons of high efficacy.
- the liquor used may contain other customary process or effect chemicals, in particular wetting agents, plasticizers, oleo and / or hydrophobizing additives or thickeners.
- a heat-setting or molding step may be followed, in which the antioxidant action of the carbodihydrazide is utilized. It is possible that the fleet mainly removing solvents and / or dispersants in the course of these thermal processing steps to remove what is of course favored insofar as can be reduced in this way, the number of required process steps. However, the solvent and / or dispersant can also be removed beforehand in a separate step.
- Another embodiment of the present invention is the use of a solution or dispersion containing a carbodihydrazide as a textile auxiliary.
- CDH-treated textiles based on polyamide have a very high stability in the yellowing inhibition against thermal influences and / or oxidizing agents.
- thermal influences are here in particular treatment method of polyamide-containing materials to understand, which are carried out at higher temperatures, such as thermosetting or Molden.
- Oxidizing agents are to be understood as meaning in particular nitrogen oxides, ozone or chlorine-containing oxidizing agents.
- Example 1 Treatment of untreated polyamide
- Example 1.A for 45 s at 200 0 C heat-set or in
- Polyamide 6.6 knit fabric was lightened at a liquor ratio of 1:10 with 1.0% Tuboblanc® MA. The pH was adjusted to 4 with acetic acid, the treatment was carried out at 95 ° C. and for 30 minutes. Thereafter, rinsed warm and cold and dried at 120 0 C.
- Polyamide 6.6 knitwear was dyed at a liquor ratio of 1:10 with acid dyes.
- 2 g / L Sarabid EP and 0.5 g / L Meropan EF were submitted, after 10 min 0.02% of a Bezanyl ® - acid dye is added, is heated for further 10 min at 2 ° C / min to 98 0C, Treated for 30 min at this temperature, then cooled at 2 ° C / min to 60 0 C and rinsed.
- As dyes Bezanyl ® Red E-3G 200 Bezanyl ® Blue E2R 200 Bezanyl ® Violet FB or Bezanyl ® Orange N-GR were used.
- ADH and CDH worked very efficiently compared to the samples without antioxidant, 1 g / L ADH improved the result, good results were obtained only with 2 g / L ADH or CDH according to the invention already at 0.5 to 0.75 g / L , 1 g / L CDH worked best.
- Example 4 treatment of dyed polyamide (heat setting ')
- the treatment was carried out analogously to Example 3, but instead of Moldens at 200 0 C and 210 0 C each 30 or 60 s was heat-set.
- the treatment was carried out analogously to Example 4, but first the antioxidant was applied, then heat-set and dyed at the end.
- the NO ⁇ -authenticity was tested according to EN ISO 105-G01 "NO x -gasing heavy” and assessed according to gray scale (1 worst, 5 best).
- Example 2 Analogously to Example 1, instead of pure CDH, the 10-fold amount of a 10% strength solution which had been previously stored for 2 months at room temperature was used.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007028997A DE102007028997A1 (de) | 2007-06-23 | 2007-06-23 | Verfahren zur Vergilbungsinhibierung |
| PCT/EP2008/057364 WO2009000660A2 (de) | 2007-06-23 | 2008-06-12 | Verfahren zur vergilbungsinhibierung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2160489A2 true EP2160489A2 (de) | 2010-03-10 |
| EP2160489B1 EP2160489B1 (de) | 2016-05-25 |
Family
ID=40030816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08760908.7A Not-in-force EP2160489B1 (de) | 2007-06-23 | 2008-06-12 | Verfahren zur vergilbungsinhibierung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2160489B1 (de) |
| DE (1) | DE102007028997A1 (de) |
| WO (1) | WO2009000660A2 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133313B (zh) * | 2015-10-15 | 2017-09-19 | 东华大学 | 一种用于尼龙的抗黄变剂 |
| WO2020222756A1 (en) * | 2019-04-29 | 2020-11-05 | Hewlett-Packard Development Company, L.P. | Three-dimensional printing |
| WO2020249999A1 (en) | 2019-06-10 | 2020-12-17 | Hewlett-Packard Development Company, L.P. | Three-dimensional printing with dihydrazide antioxidants |
| CN114481624B (zh) * | 2022-02-08 | 2024-05-03 | 东莞市中纺化工有限公司 | 一种抗黄变添加剂及其制备方法与应用 |
| CN115928428A (zh) * | 2023-01-13 | 2023-04-07 | 上海拓纳化学新材料有限公司 | 用于纺织物抗高温黄变和抗酚黄变的助剂、制备方法及其应用 |
| CN118029131B (zh) * | 2024-04-12 | 2024-12-06 | 四川大学 | 改性羊毛纤维、制备方法、复合水性树脂及其制备方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6081370A (ja) | 1983-10-07 | 1985-05-09 | 日華化学株式会社 | 繊維製品の処理方法 |
| US5069681A (en) | 1990-01-03 | 1991-12-03 | Ciba-Geigy Corporation | Process for the photochemical stabilization of dyed polyamide fibres with foamed aqueous composition of copper organic complexes |
| US5294735A (en) * | 1991-03-04 | 1994-03-15 | Ciba-Geigy Corporation | Semicarbazides and the use thereof for stabilizing polyamide fibre materials and the dyeings produced thereon |
| AT402518B (de) * | 1995-08-03 | 1997-06-25 | Chemie Linz Gmbh | Mit guanidin- oder ethylendiaminsalz flammgehemmte zellulose-materialien, enthaltend einen verfärbungsinhibitor |
| KR101157417B1 (ko) | 2004-10-28 | 2012-06-22 | 훈츠만 어드밴스트 머티리얼스(스위처랜드) 게엠베하 | 열안정성의 개선방법 |
-
2007
- 2007-06-23 DE DE102007028997A patent/DE102007028997A1/de not_active Withdrawn
-
2008
- 2008-06-12 EP EP08760908.7A patent/EP2160489B1/de not_active Not-in-force
- 2008-06-12 WO PCT/EP2008/057364 patent/WO2009000660A2/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009000660A3 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009000660A2 (de) | 2008-12-31 |
| WO2009000660A3 (de) | 2009-07-30 |
| DE102007028997A1 (de) | 2008-12-24 |
| EP2160489B1 (de) | 2016-05-25 |
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