EP3728726A1 - Verfahren zum färben der oberfläche eines werkstücks - Google Patents
Verfahren zum färben der oberfläche eines werkstücksInfo
- Publication number
- EP3728726A1 EP3728726A1 EP18829187.6A EP18829187A EP3728726A1 EP 3728726 A1 EP3728726 A1 EP 3728726A1 EP 18829187 A EP18829187 A EP 18829187A EP 3728726 A1 EP3728726 A1 EP 3728726A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- polypropylene
- workpiece
- cationic
- layer
- dispersion
- 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
- 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
- D06P3/79—Polyolefins
-
- 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
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
- D06M15/277—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof containing fluorine
-
- 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
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
-
- 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
- D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
-
- 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
-
- 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
- D06P1/44—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 insoluble pigments or auxiliary substances, e.g. binders
- D06P1/52—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 insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
-
- 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
- D06P1/44—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 insoluble pigments or auxiliary substances, e.g. binders
- D06P1/52—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 insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
- D06P1/5207—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- D06P1/5214—Polymers of unsaturated compounds containing no COOH groups or functional derivatives thereof
- D06P1/5221—Polymers of unsaturated hydrocarbons, e.g. polystyrene polyalkylene
-
- 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
- D06P3/79—Polyolefins
- D06P3/791—Polyolefins using acid dyes
-
- 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
- D06P3/79—Polyolefins
- D06P3/792—Polyolefins using basic dyes
-
- 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
- D06P3/79—Polyolefins
- D06P3/798—Polyolefins using reactive dyes
-
- 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
- D06P5/22—Effecting variation of dye affinity on textile material by chemical means that react with the fibre
Definitions
- the invention relates to a process for dyeing the surface of a polypropylene workpiece with a colorant. Moreover, the invention relates to a product comprising a colored polypropylene workpiece.
- Polypropylene workpieces are e.g. as polypropylene fibers in textile fabrics widely used.
- a particular characteristic of polypropylene fibers results from their construction as a hydrocarbon-based fiber, which has very hydrophobic properties.
- polypropylene fibers are also used e.g. used in the automotive industry (e.g., as carpets).
- the most commonly used dyeing method relies on the incorporation of dye at the level of fiber production.
- a dye-containing master batch is mixed with the polypropylene during the melt spinning process for the production of the fibers, resulting in the extrusion process colored fibers.
- any colors with very high fastness requirements can be produced.
- the method is economical only at relatively high production rates because the entire spin line must be filled with colored polymer and high levels of transitional colors between two shades are incurred as waste.
- This object is achieved by a method for dyeing the surface of a workpiece with a colorant, characterized in that the workpiece is impregnated in a first step with a cationic polypropylene dispersion and dyed in a subsequent second step with an anionic colorant.
- the object is achieved by a product comprising a workpiece having on the surface a layer comprising polypropylene and at least one cationic surfactant, wherein on the layer an anionic colorant is arranged.
- Polypropylene dispersions have been known for some time. This is a substantially aqueous system in which polypropylene is dispersed. In certain cases, an emulsion may also be present. In this case polypropylene with short chain lengths and low isotacticity is used.
- a cationic polypropylene dispersion is understood to mean one which has a cationic surfactant. The cationic surfactant attaches to the dispersed polypropylene.
- polypropylene dispersion is a dispersion of polypropylene with a cationic surfactant.
- the impregnation with the cationic polypropylene dispersion is carried out in the simplest case by immersing the workpiece in a bath in which the cationic polypropylene dispersion is present.
- a layer of polypropylene with cationic surfactant forms on the surface of the workpiece. This layer is adsorbed on the surface and the cationic surfactant gives it on the surface the character of a positive charge.
- the workpiece is preferably one which has plastic. Particularly preferably, it is a workpiece which comprises polypropylene.
- the workpiece is dried after impregnation with the cationic polypropylene dispersion.
- this is done by removing the workpiece from the bath in which the cationic polypropylene dispersion is located and drying in air. By increasing the temperature drying can be accelerated.
- the anionic colorant may be any anionic colorant used in the dyeing industry. They are preferably anionic dyes. Particularly preferred are anionic dyes which are normally used in wool dyeing, for example anionic natural dyes. Anionic dyes are sometimes referred to as acid dyes.
- the steps of drying and heating can be combined and done simultaneously in one step.
- the method is preferably used in the textile industry, so that the workpiece preferably comprises polypropylene fibers.
- the polypropylene workpiece can be flat. It preferably comprises polypropylene fibers. It can be e.g. to trade a fabric, knits, fleece, etc. Analogously, films, plates, irregularly structured workpieces and thick workpieces can be modified.
- the layer is partially or completely melted onto the surface of the polypropylene workpiece.
- the invention also relates to a process for dyeing the surface of a workpiece with a colorant, which is characterized in that the workpiece is impregnated in a first step with an anionic polypropylene dispersion and dyed in a subsequent second step with a cationic colorant becomes.
- the invention also relates to a product comprising a workpiece having on the surface a layer comprising polypropylene and at least one anionic surfactant, wherein on the layer a cationic colorant is arranged.
- the workpiece comprises a plastic, preferably polypropylene, particularly preferably comprises polypropylene fibers.
- the workpiece can be formed flat, in particular comprise at least one woven fabric, a knitted fabric, a nonwoven fabric, a layer, a plate, an irregularly constructed workpiece or a combination thereof.
- the layer is melted onto the surface of the workpiece.
- the invention also relates to a product comprising a workpiece which has on the surface a layer which comprises polypropylene and at least one cationic surfactant, wherein an anionic active substance is arranged on the layer.
- the invention also relates to a product comprising a workpiece which has on the surface a layer comprising polypropylene and at least one anionic surfactant, wherein a cationic active substance is arranged on the layer.
- polypropylene workpieces e.g., polypropylene fibers or polypropylene fiber textile fabrics
- a cationic polypropylene dispersion the surface charge of the fibers can be increased to such an extent that staining with anionically charged dyes, e.g. for wool or polyamide is possible.
- a polypropylene fiber is impregnated with a cationic polypropylene dispersion from the aqueous phase. If a polypropylene dispersion with 40% solids content is used, it can be applied undiluted or preferably diluted with water to the fiber material by immersion and squeezing. The amount of deposited on the fabric polypropylene dispersion moves at a liquor pick-up of 80%, between 32% and 3% of the weight of the goods. In a preferred embodiment, between 20% and 10% of polypropylene dispersion is applied, and more preferably between 25% and 15% of the product mass is applied to polypropylene dispersion.
- the aqueous phase is dried, the temperature being carried out in customary drying apparatuses, for example clamping frames, drum dryers, pressure dryers corresponding to the form of formation of the fibers, and the drying temperature preferably between 80 ° C. and 130 ° C., more preferably between 105 and 15 ° C. lies.
- the drying energy can be transmitted by hot air, superheated steam, contact heat, infrared radiation or microwave radiation, although other drying methods can be used.
- the applied polypropylene dispersion is fixed by a thermal step on the goods.
- the required temperature of the fixation depends on the molecular weight of the polypropylene dispersion used and is usually between 1 10 ° C and 160 ° C, preferably between 115 and 155 ° C, more preferably between 120 ° C and 140 ° C.
- the required lower limit of the temperature is determined by the fixation of the PP dispersion and the upper limit is determined by the maximum treatment temperature of the PP fiber. If the lower limit is not reached, adsorption takes place, but the fixation of the dispersion is not ideal for certain textile applications in which frequent cleanings (especially at high temperatures) occur. If the upper temperature limit is exceeded, a thermal change of the fiber structure of the PP fiber begins, which would result in the loss of the molecular orientation and thus the specific fiber properties.
- Such a surface treated with a cationic polypropylene dispersion fiber can now be dyed with conventional acid dyes. Similar to wool and silk, the fiber now has sufficient cationic charges on the surface, which allow the anionic acid dye to bind.
- a thus treated PP fiber can also be advantageously used in admixture with other fibers, e.g. Wool, dye polyamide one bath.
- other fibers may be admixed and these may be dyed by the appropriate methods, for example, a PP / polyester fiber blend may be dyed by the same procedures as a wool / polyester fiber blend.
- the cationic polypropylene dispersion is applied locally by an application technique, eg by printing, spraying, etc., pattern or local staining can also be achieved in a subsequent process or in the printing process.
- an application technique eg by printing, spraying, etc.
- pattern or local staining can also be achieved in a subsequent process or in the printing process.
- functional substances for example antimicrobial agents, optical brighteners, at the existing cationic centers in an analogous manner.
- the modified fibers carry a negative charge and the dyeing is carried out with cationic dyes.
- the technique can be adapted to other fibers, in particular the hard-to-dye fibers of UHMPE (Ultra high molecular weight polyethylene) or aromatic polyamides (eg Kevlar, Nomex), aromatic polyesters (eg Vextran) or also to call glass fibers.
- UHMPE Ultra high molecular weight polyethylene
- aromatic polyamides eg Kevlar, Nomex
- aromatic polyesters eg Vextran
- the thermal treatment conditions must be adapted to the resistances and properties of the fibers, e.g. by using low-melting polypropylene dispersions or by using polyethylene dispersions.
- a knit fabric made from PP fibers is impregnated with a cationic PP dispersion (eg Michern emulsion, 28640 40% PP volume fraction) by an impregnation process.
- a cationic PP dispersion eg Michern emulsion, 28640 40% PP volume fraction
- the different concentrations of PP dispersion listed in Table 1 are applied and fixed after drying at 100 ° C at elevated temperature between 110 and 155 ° C.
- the liquor pickup when applying the dispersion is about 100%.
- PP samples are subjected to the same thermal treatment.
- the values of the color coordinates clearly show the higher dye uptake and color depth that could be achieved by the treatment.
- the fastness remains at a good level, the higher color depth results in a reduction in the authenticity.
- the dispersion of cationic polypropylene is diluted with water (60% dispersion and 40% water).
- the fixing temperature used is 130 ° C. for 10 minutes.
- the dyeing with acid dye is carried out analogously to application example 1.
- Figures 1 and 2 shows laser scanning microscope photographs of treated (Figure 1) and untreated PP fibers ( Figure 2). It can be clearly seen in the figures that deposits are formed by layer formation on the treated PP fibers.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Coloring (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA51051/2017A AT520785A2 (de) | 2017-12-19 | 2017-12-19 | Verfahren zum Färben der Oberfläche eines Werkstücks |
| PCT/AT2018/060308 WO2019119008A1 (de) | 2017-12-19 | 2018-12-19 | Verfahren zum färben der oberfläche eines werkstücks |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| EP3728726A1 true EP3728726A1 (de) | 2020-10-28 |
| EP3728726C0 EP3728726C0 (de) | 2024-11-13 |
| EP3728726B1 EP3728726B1 (de) | 2024-11-13 |
| EP3728726B8 EP3728726B8 (de) | 2025-02-19 |
Family
ID=64901793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18829187.6A Active EP3728726B8 (de) | 2017-12-19 | 2018-12-19 | Verfahren zum färben der oberfläche eines werkstücks |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3728726B8 (de) |
| AT (1) | AT520785A2 (de) |
| WO (1) | WO2019119008A1 (de) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3314743A (en) * | 1963-11-07 | 1967-04-18 | Gagliardi Domenick Donald | Processes for treatment of preformed articles of olefin polymers and resulting products |
| US3653799A (en) * | 1968-08-01 | 1972-04-04 | Ppg Industries Inc | Process for coating and dyeing polyolefin fibers |
| US5618622A (en) * | 1995-06-30 | 1997-04-08 | Kimberly-Clark Corporation | Surface-modified fibrous material as a filtration medium |
-
2017
- 2017-12-19 AT ATA51051/2017A patent/AT520785A2/de not_active Application Discontinuation
-
2018
- 2018-12-19 EP EP18829187.6A patent/EP3728726B8/de active Active
- 2018-12-19 WO PCT/AT2018/060308 patent/WO2019119008A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019119008A1 (de) | 2019-06-27 |
| EP3728726B8 (de) | 2025-02-19 |
| EP3728726C0 (de) | 2024-11-13 |
| EP3728726B1 (de) | 2024-11-13 |
| AT520785A2 (de) | 2019-07-15 |
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