WO2009062865A2 - Non-woven cloth able to simultaneously absorb dirt particles and fugitive colourings of various chemical nature during household washing cycles in a washing machine. - Google Patents
Non-woven cloth able to simultaneously absorb dirt particles and fugitive colourings of various chemical nature during household washing cycles in a washing machine. Download PDFInfo
- Publication number
- WO2009062865A2 WO2009062865A2 PCT/EP2008/064954 EP2008064954W WO2009062865A2 WO 2009062865 A2 WO2009062865 A2 WO 2009062865A2 EP 2008064954 W EP2008064954 W EP 2008064954W WO 2009062865 A2 WO2009062865 A2 WO 2009062865A2
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- WIPO (PCT)
- Prior art keywords
- colourings
- woven cloth
- fugitive
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- molecules
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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
- 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
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
- C11D17/041—Compositions releasably affixed on a substrate or incorporated into a dispensing means
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
- C11D17/049—Cleaning or scouring pads; Wipes
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0021—Dye-stain or dye-transfer inhibiting compositions
-
- 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
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
- D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
-
- 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
- D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
- D06M23/04—Processes in which the treating agent is applied in the form of a foam
-
- 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
- D06P5/02—After-treatment
-
- 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
- D06P5/02—After-treatment
- D06P5/04—After-treatment with organic compounds
- D06P5/08—After-treatment with organic compounds macromolecular
-
- 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
-
- 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
- D06M2101/08—Esters or ethers of cellulose
Definitions
- Non-woven cloth able to simultaneously absorb dirt particles and fugitive colourings of various chemical nature during household washing cycles in a washing machine.
- the present invention relates to a non-woven cloth designed to be used during household washing cycles in a washing machine.
- the said cloth is composed of a non-woven fabric support that contains a polymeric matrix comprising chemical functionalities that ensure a) the capability of absorbing the particles of fugitive colourings that are poorly bound on the fabric and freed during the washing cycle of dyed garments in a washing machine and that may stain the other garments contained in the washing machine, preventing re-deposition on fabrics.
- Supports used in household washing cycles in a washing machine are known on the market, generally consisting in non-woven cellulose- based fabrics, and also synthetic ones, containing molecules with specific functionalities, such as bleaching agents, detergents, oxidising agents, colour binders, decalcifying agents, optical whiteners or conditioners.
- the molecules with the aforementioned functionalities are adhered onto the surface of the material by means of physical impregnation and chemical anchoring processes. Once they are introduced in the aqueous solution used for washing in the washing machine, the functional molecules that are more or less firmly anchored to the material of the non-woven cloth are released to carry out their action in solution or remain anchored to the support.
- cationic polymers are used as binders of fugitive colours (USP 3694364, USP 4065257, USP 4380353) since most colourings have anionic charge.
- the said molecules are not selective and can interact with other anionic molecules contained in higher concentration in the washing solution, such as the ones of many detergents, with optical whiteners.
- Most of all not being perfectly anchored to the support fabric, if solubilized, they can contribute to fix the fugitive colour molecules on the garments that are being washed, given the high affinity of cationic agents for fabrics, especially cotton.
- the present invention discloses the preparation of a non-woven cloth, preferably viscose or lyocell in view of higher mechanical strength than cotton, which comprises a synthetic matrix composed of an acrylic copolymer and specific chemical functionalities that give the cloth the capacity to simultaneously absorb dirt particles and fugitive colouring molecules contained in an ordinary household washing cycle in a washing machine, preventing re-deposition on other garments or articles subjected to the same washing cycle.
- a non-woven cloth is relevant on fugitive colourings from all families of colourings: reactive and direct colourings for cotton, dispersed colourings for polyester, acid colourings for nylon and premetallized acid colourings for wool.
- the action of the non-woven cloth on the dirt particles is carried out because of the anchoring of clay particles, since clay is a material with high absorbing capacity with high affinity for lipidic molecules. Being a sedimentable material, clay must be maintained dispersed in solution to obtain uniform deposition on the non-woven cloth. This is obtained by using an aqueous dispersion that contains viscosizing and surfactant principles based on C-1 1 -14 iso C13-rich alcohols and ethoxylated tridecyl alcohol, able to prevent sedimentation of clay particles.
- the clayey particles deposited on the substrate do not have a specific chemical bind with the non-woven fabric and carry out their action in two ways: by being partially trapped in the non-woven cloth and by being released by the cloth to carry out their absorbing action of dirt particles in the washing solution and no longer in the surface of the non-woven cloth. Since the complex formed between the clay particles and the dirt particles in the washing solution has no affinity for fabrics, there is no risk of re-deposition of the dirt particles on the garments or other items that are being washed.
- the idea of the present invention provides for the realisation of a non- woven cloth according to a known process through the deposition and cohesion of a veil of discontinuous fibres with a chemical process, - A -
- the foam is homogeneous and uniformly deposited with a suitable apparatus on the entire surface of the non-woven fabric during the transportation of the fibre veil, is compressed through hydro-extracting rolls that compact the material and force the foam to penetrate into the pores of the non-woven fabric.
- the material is conveyed into a suitable oven that contains the aforementioned foam, is treated at a temperature from 120 and 180°C, preferably 160°C, for a time from 45 and 90 seconds, preferably 60 seconds, in order to obtain final compaction through reticulation of acrylic polymer and anchoring reaction of molecules on the non-woven fabric.
- the non-woven cloth has a weight ranging from 60 to 90 g/m 2 , preferably from 70 to 80 g/m 2 . It is also possible to operate according to a second process, basically known as foulardage.
- the non-woven fabric with cellulose base that contains only the acrylic polymer and the surfactant is initially prepared with the aforementioned methodology.
- the rolls of material are subjected to impregnation, according to which the fabric pulled on rolls passes through a metal container to absorb an aqueous solution composed of:
- an anchoring polymer of epichlorhydrin derivation preferably 3%, containing specific functionalities to bind the anchoring molecule both to the substrate cellulose and to the polyvinylpyrrolidone-vinylmidazole-based copolymer.
- wetting agent preferably 0.2 %, based on thdecyl alcohol with low ethoxylation grade, containing from 1 to 10 moles of ethylene oxide, preferably 6 moles, in order to improve the wetting of the non-woven cloth and accelerate the fixation process of the fugitive colourings molecules and dirt on the cloth during the washing cycles in a washing machine.
- the fabric impregnated with solution is subjected to hydro-extraction in continuous controlled mode to obtain absorption in weight of solution with respect to the weight of non-woven fabric that varies from 50 to 150%, preferably 100%.
- the fabric is subjected continuously to a combined treatment of mechanical and thermal stabilisation with rameuse, at temperatures from 100 to 160°C, preferably 130°C, for a time from 10 and 30 minutes, preferably 20 minutes.
- a combined treatment of mechanical and thermal stabilisation with rameuse at temperatures from 100 to 160°C, preferably 130°C, for a time from 10 and 30 minutes, preferably 20 minutes.
- the non-woven cloth has a weight ranging from 60 to 90 g/m 2 , preferably from 70 to 80 g/m 2 .
- the wet mechanical strength of the non-woven cloth is an important parameter to determine its suitability for use in washing machines.
- the non-woven cloth must remain coherent, without flaking off during the washing cycle, a risk that may occur in case of non-woven fabrics in prolonged contact with aqueous solutions if their wet strength is low.
- the non-woven cloth illustrated in the present invention has tensile strength values both in longitudinal and transversal direction not lower than 1.5 Kgf, preferably not lower than 1.7 Kgf in longitudinal direction and 2 Kgf in transversal direction when measured with an axial dynamometer.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
Non-woven cloth able to simultaneously absorb dirt particles and fugitive colourings of various chemical nature during household washing cycles in a washing machine.
Description
Description
Non-woven cloth able to simultaneously absorb dirt particles and fugitive colourings of various chemical nature during household washing cycles in a washing machine.
The present invention relates to a non-woven cloth designed to be used during household washing cycles in a washing machine. The said cloth is composed of a non-woven fabric support that contains a polymeric matrix comprising chemical functionalities that ensure a) the capability of absorbing the particles of fugitive colourings that are poorly bound on the fabric and freed during the washing cycle of dyed garments in a washing machine and that may stain the other garments contained in the washing machine, preventing re-deposition on fabrics. This action is carried out on all families of colourings that may be released by the garments during washing cycles: direct and reactive colourings used to dye cotton, dispersed colourings for polyester, acid colourings for nylon and silk, premetallized colourings for wool and b) the capability to absorb, during the washing cycle in the washing machine, also the dirt particles contained in the washing water, preventing re-deposition on the garments that are being washed. The above is obtained by using a special aqueous dispersion of clay particles, since clay is known for its absorbing properties, in particular oils and greases. Supports used in household washing cycles in a washing machine are known on the market, generally consisting in non-woven cellulose- based fabrics, and also synthetic ones, containing molecules with specific functionalities, such as bleaching agents, detergents, oxidising agents, colour binders, decalcifying agents, optical whiteners or conditioners. The molecules with the aforementioned functionalities are adhered onto the surface of the material by means of physical impregnation and chemical anchoring processes. Once they are
introduced in the aqueous solution used for washing in the washing machine, the functional molecules that are more or less firmly anchored to the material of the non-woven cloth are released to carry out their action in solution or remain anchored to the support. In particular, cationic polymers are used as binders of fugitive colours (USP 3694364, USP 4065257, USP 4380353) since most colourings have anionic charge. The said molecules are not selective and can interact with other anionic molecules contained in higher concentration in the washing solution, such as the ones of many detergents, with optical whiteners. Most of all, not being perfectly anchored to the support fabric, if solubilized, they can contribute to fix the fugitive colour molecules on the garments that are being washed, given the high affinity of cationic agents for fabrics, especially cotton.
Moreover, the action of cationic polymers on fugitive colour particles with different chemical origin is not equally effective. In fact, the capacity to bind colours is very different according to the specific family of fugitive colourings. For instance, in the case of acrylic fibres dyed with basic colourings with positive charge, very poor affinity is obtained among fugitive colouring molecules and cationic agents due to the creation of electrostatic repulsion phenomena.
The present invention discloses the preparation of a non-woven cloth, preferably viscose or lyocell in view of higher mechanical strength than cotton, which comprises a synthetic matrix composed of an acrylic copolymer and specific chemical functionalities that give the cloth the capacity to simultaneously absorb dirt particles and fugitive colouring molecules contained in an ordinary household washing cycle in a washing machine, preventing re-deposition on other garments or articles subjected to the same washing cycle. In particular, the action of the aforementioned non-woven cloth is relevant on fugitive colourings from all families of colourings: reactive and direct colourings for cotton, dispersed colourings for polyester, acid colourings for nylon and premetallized acid colourings for wool. This is
due to the chemical nature of the chemical functionality anchored on the non-woven fabric cloth in order to inhibit colour fugitive molecules with polyvinylpyrrolidone-covinylmidazole copolymer base. Although these functionalities are present in the formulations of many detergents (DE 2814287, EP 372291 , EP 327927, DE4027832), they have no cationic charge, and therefore do not interact preferentially with anionic colourings only, favouring the creation of an aromatic-aromatic interaction with the aromatic component contained in almost all colouring molecules, regardless of the family they belong to. The absence of positive charge also minimises the risk of possible re- deposition on other fabrics of the eventually solubilized polymeric particles that do not show affinity for fabrics, unlike cationic polymers. The action of the non-woven cloth on the dirt particles is carried out because of the anchoring of clay particles, since clay is a material with high absorbing capacity with high affinity for lipidic molecules. Being a sedimentable material, clay must be maintained dispersed in solution to obtain uniform deposition on the non-woven cloth. This is obtained by using an aqueous dispersion that contains viscosizing and surfactant principles based on C-1 1 -14 iso C13-rich alcohols and ethoxylated tridecyl alcohol, able to prevent sedimentation of clay particles. The clayey particles deposited on the substrate do not have a specific chemical bind with the non-woven fabric and carry out their action in two ways: by being partially trapped in the non-woven cloth and by being released by the cloth to carry out their absorbing action of dirt particles in the washing solution and no longer in the surface of the non-woven cloth. Since the complex formed between the clay particles and the dirt particles in the washing solution has no affinity for fabrics, there is no risk of re-deposition of the dirt particles on the garments or other items that are being washed. The idea of the present invention provides for the realisation of a non- woven cloth according to a known process through the deposition and cohesion of a veil of discontinuous fibres with a chemical process,
- A -
preferably made of viscose or lyocell in view of higher mechanical strength than cotton, and through the formation of a foam starting from a solution that contains the following as dry substance:
- from 10 to 80 parts of an acrylic polymer, preferably 55%, - from 1 to 10 parts of an anionic or cationic surfactant, preferably 2%
- from 1 to 50 parts of a solution of a copolymer mixture with polyvinylpyrrolidone-covynilimidazole base, preferably 20%,
- from 1 to 50 parts of a solution containing an anchoring polymer of epichlorhydhn derivation, preferably 10%, containing specific functionalities to bind the polymer both to the substrate cellulose and the polyvinylpyrrolidone-vinylimidazole-based copolymer.
- from 1 to 30 parts, preferably 10%, of an aqueous dispersion of clay particles containing ethoxylated alcohols.
- from 1 to 5 % of wetting agent, preferably 3%, based on tridecyl alcohol with low ethoxylation grade, containing from 1 to 10 moles of ethylene oxide, preferably 6 moles, in order to improve the wetting of the non-woven cloth to accelerate the fixation process of fugitive colouring molecules and dirt on the cloth during the washing cycles in a washing machine. The foam is homogeneous and uniformly deposited with a suitable apparatus on the entire surface of the non-woven fabric during the transportation of the fibre veil, is compressed through hydro-extracting rolls that compact the material and force the foam to penetrate into the pores of the non-woven fabric. After hydro-extraction, the material is conveyed into a suitable oven that contains the aforementioned foam, is treated at a temperature from 120 and 180°C, preferably 160°C, for a time from 45 and 90 seconds, preferably 60 seconds, in order to obtain final compaction through reticulation of acrylic polymer and anchoring reaction of molecules on the non-woven fabric.
The non-woven cloth has a weight ranging from 60 to 90 g/m2, preferably from 70 to 80 g/m2.
It is also possible to operate according to a second process, basically known as foulardage.
In this case the non-woven fabric with cellulose base that contains only the acrylic polymer and the surfactant is initially prepared with the aforementioned methodology. During a second operative phase the rolls of material are subjected to impregnation, according to which the fabric pulled on rolls passes through a metal container to absorb an aqueous solution composed of:
- from 5 to 20 parts of a polyvinylpyrrolidone-covinylimidazoly-based copolymer mixture, preferably 5 %, able to interact with the aromatic component contained in almost all families of colourings and especially azoderivates.
- from 1 to 10 parts of an anchoring polymer of epichlorhydrin derivation, preferably 3%, containing specific functionalities to bind the anchoring molecule both to the substrate cellulose and to the polyvinylpyrrolidone-vinylmidazole-based copolymer.
- from 5 to 10 parts, preferably 2 %, of an aqueous dispersion of clay particles able to absorb the dirt particles with fat matrix.
- from 0.1 to 1 % of wetting agent, preferably 0.2 %, based on thdecyl alcohol with low ethoxylation grade, containing from 1 to 10 moles of ethylene oxide, preferably 6 moles, in order to improve the wetting of the non-woven cloth and accelerate the fixation process of the fugitive colourings molecules and dirt on the cloth during the washing cycles in a washing machine. After passing through the metal container, the fabric impregnated with solution is subjected to hydro-extraction in continuous controlled mode to obtain absorption in weight of solution with respect to the weight of non-woven fabric that varies from 50 to 150%, preferably 100%. Then the fabric is subjected continuously to a combined treatment of mechanical and thermal stabilisation with rameuse, at temperatures from 100 to 160°C, preferably 130°C, for a time from 10 and 30 minutes, preferably 20 minutes. In this way the anchoring reaction of
the functional molecules on the non-woven fabric substrate is completed by the action of heat.
The non-woven cloth has a weight ranging from 60 to 90 g/m2, preferably from 70 to 80 g/m2. The wet mechanical strength of the non-woven cloth is an important parameter to determine its suitability for use in washing machines. The non-woven cloth must remain coherent, without flaking off during the washing cycle, a risk that may occur in case of non-woven fabrics in prolonged contact with aqueous solutions if their wet strength is low. With both aforementioned processes, the non-woven cloth illustrated in the present invention has tensile strength values both in longitudinal and transversal direction not lower than 1.5 Kgf, preferably not lower than 1.7 Kgf in longitudinal direction and 2 Kgf in transversal direction when measured with an axial dynamometer.
Claims
Claims
1 ) Disposable non-woven cloth used during household washing cycles in washing machines, composed of one or more layers of non-woven fabric made of viscose or lyocell and containing an acrylic copolymer.
2) Non-woven cloth as claimed in claim 1 characterised in that polymeric organic substances with polyvinylpyrrolidone-covynilmidazole base are securely adhered to it as binders of the fugitive colour in percentage ranging from 1 to 10 %.
3) Non-woven cloth as claimed in claim 1 , in which polymer anchoring as per claim 2 is carried out by using organic substances of epichlohdryn type in percentage ranging from 1 to 10 %.
4) Non-woven cloth as claimed in claim 1 , characterised in that clay particles are adhered to it in percentage ranging from 1 to 10% in order to bind dirt particles.
5) Non-woven fabric cloth as claimed in claim 1 , in which the adhesion to the cellulose substrate of molecules as per claims 2, 3 and 4 is obtained by means of mixing with the acrylic copolymer and formation of a foam, deposition and hydro-extraction of the foam on the cellulose substrate and reticulation of polymers through heat.
6) Non-woven cloth as claimed in claim 1 , where adhesion to cellulose substrate of molecules as per claims 2, 3 and 4 is obtained with absorption and hydro-extraction of an aqueous solution containing the said molecules and fixation on substrate through heat.
7) Non-woven cloth as claimed in claim 1 , containing the functional groups as per claims 2 and 3, in which the inhibition action of the fugitive colouring is carried out on different families of colourings: direct reactive colourings used for cotton, dispersed colourings for polyester, acid colourings for nylon and silk, premetallized acid colourings for wool, basic colourings for acrylic fibres.
8) Non-woven cloth as claimed in claim 1 , containing functional groups as per claims 2, 3 and 4, in which the wet mechanical strength is higher than 1 Kgf both in longitudinal and transversal direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMC20070223 ITMC20070223A1 (en) | 2007-11-15 | 2007-11-15 | TNT CLOTH ABLE TO SIMULTANEOUSLY ABSORB OUT OF DIRT PARTICLES AND DETERGENT COLORINGS OF DIFFERENT CHEMICAL NATURE DURING WASHING DOMESTIC WASHES. |
| ITMC2007A000223 | 2007-11-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2009062865A2 true WO2009062865A2 (en) | 2009-05-22 |
| WO2009062865A3 WO2009062865A3 (en) | 2009-09-03 |
Family
ID=40314663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2008/064954 WO2009062865A2 (en) | 2007-11-15 | 2008-11-04 | Non-woven cloth able to simultaneously absorb dirt particles and fugitive colourings of various chemical nature during household washing cycles in a washing machine. |
Country Status (2)
| Country | Link |
|---|---|
| IT (1) | ITMC20070223A1 (en) |
| WO (1) | WO2009062865A2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20090631A1 (en) * | 2009-04-17 | 2010-10-18 | Orlandi Spa | PRODUCT FOR WASHING WASHING |
| GB2520935A (en) * | 2013-12-03 | 2015-06-10 | Little Island Patents Ltd | Improvements in or relating to clothes washing |
| EP2980196A1 (en) | 2014-07-30 | 2016-02-03 | Orsa S.r.l. | Product for the washing of clothes and the capture of molecules of color dissolved in the washing water in the washing machine |
| EP3747979A1 (en) * | 2019-06-05 | 2020-12-09 | Glatfelter Gernsbach GmbH | Dye-capturing non-woven fabric and method for producing the same |
| RU2793041C1 (en) * | 2019-06-05 | 2023-03-28 | Глатфельтер Гернсбах Гмбх | Dye-catching non-woven fabric and method for making it |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030158075A1 (en) * | 2000-10-13 | 2003-08-21 | The Procter & Gamble Company | Laundering aid for preventing dye transfer |
| WO2007088149A1 (en) * | 2006-02-01 | 2007-08-09 | Lamberti Spa | Non-woven colour-catcher fabric and method for its preparation |
-
2007
- 2007-11-15 IT ITMC20070223 patent/ITMC20070223A1/en unknown
-
2008
- 2008-11-04 WO PCT/EP2008/064954 patent/WO2009062865A2/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030158075A1 (en) * | 2000-10-13 | 2003-08-21 | The Procter & Gamble Company | Laundering aid for preventing dye transfer |
| WO2007088149A1 (en) * | 2006-02-01 | 2007-08-09 | Lamberti Spa | Non-woven colour-catcher fabric and method for its preparation |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20090631A1 (en) * | 2009-04-17 | 2010-10-18 | Orlandi Spa | PRODUCT FOR WASHING WASHING |
| GB2520935A (en) * | 2013-12-03 | 2015-06-10 | Little Island Patents Ltd | Improvements in or relating to clothes washing |
| GB2520935B (en) * | 2013-12-03 | 2016-06-22 | Little Island Patents Ltd | Improvements in or relating to clothes washing |
| EP2980196A1 (en) | 2014-07-30 | 2016-02-03 | Orsa S.r.l. | Product for the washing of clothes and the capture of molecules of color dissolved in the washing water in the washing machine |
| EP3747979A1 (en) * | 2019-06-05 | 2020-12-09 | Glatfelter Gernsbach GmbH | Dye-capturing non-woven fabric and method for producing the same |
| WO2020244925A1 (en) * | 2019-06-05 | 2020-12-10 | Glatfelter Gernsbach Gmbh | Dye-capturing non-woven fabric and method for producing the same |
| CN114072489A (en) * | 2019-06-05 | 2022-02-18 | 格拉特菲尔特盖恩斯巴赫股份有限公司 | Dye-capturing nonwoven fabric and method for producing the same |
| JP2022535854A (en) * | 2019-06-05 | 2022-08-10 | グラットフェルター ゲルンスバッハ ゲーエムベーハー | Dye-capturing nonwoven fabric and its manufacturing method |
| RU2793041C1 (en) * | 2019-06-05 | 2023-03-28 | Глатфельтер Гернсбах Гмбх | Dye-catching non-woven fabric and method for making it |
| JP7434369B2 (en) | 2019-06-05 | 2024-02-20 | グラットフェルター ゲルンスバッハ ゲーエムベーハー | Dye-trapping nonwoven fabric and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009062865A3 (en) | 2009-09-03 |
| ITMC20070223A1 (en) | 2009-05-16 |
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