CA1067765A - Absorbent textile article with coating of foamed rubber in a three dimensional pattern - Google Patents
Absorbent textile article with coating of foamed rubber in a three dimensional patternInfo
- Publication number
- CA1067765A CA1067765A CA259,082A CA259082A CA1067765A CA 1067765 A CA1067765 A CA 1067765A CA 259082 A CA259082 A CA 259082A CA 1067765 A CA1067765 A CA 1067765A
- Authority
- CA
- Canada
- Prior art keywords
- pattern
- superelevated
- face
- rubber
- absorbent
- 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.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
- A47L13/16—Cloths; Pads; Sponges
Landscapes
- Laminated Bodies (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Nonwoven Fabrics (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
An absorbent sheet textile article consisting of non-woven fabric to the two faces of which has been applied a coating on about 30% to 70% of both faces consisting of a coagulated foamed dispersion comprising rubber in a three-dimensional embossed pattern providing a squeegee-like wiping action.
Continuous essentially straight lines of coating traversing the faces are avoided.
An absorbent sheet textile article consisting of non-woven fabric to the two faces of which has been applied a coating on about 30% to 70% of both faces consisting of a coagulated foamed dispersion comprising rubber in a three-dimensional embossed pattern providing a squeegee-like wiping action.
Continuous essentially straight lines of coating traversing the faces are avoided.
Description
The invention relates to absorbent textile flat goods for use as cleaning cloths, non-skid underlay for carpets or the like, which comprise a bonded fabric of natural and/or synthetic staple and/or continuous fibres, and which have coating on both faces.
A porous, highly absorbent bonded fabric is already known from Ger~an Patent Speclfication DT-PS 1,560,738 furnished on both sides with a - binding agent, particularly a foamed dispersion. The binding agent covers the entire surface uniformly as a film which penetrates part way into the bonded fabric. A particularly high degree of wear resistance is thus achieved.
The bonded material is suitable, for example, as a household cleaning cloth, ~ -a window wiping cloth or the like. Although the wear resistance is greatly improved by the coating of binding agent the properties of the initially soft bonded fabric are affected by the coating so that it becomes more of a synthetic plastic-like product. Dependent on the purpose of the material, therefore, compromises must be made, allowing either a highly wear resistant but no longer completely textile-like product by use of a sufficiently thickly applied coating of binder, or alternatively a soft cloth with only a very thin coating of binder, but which cloth is sub~ect to pilling.
The problem presented by the prior art, therefore, is the need for a flat textile article which is wear resistant, on the one hand, while remain-l ing soft and textile-like on the other. At the same time, because of its ~~ preferred application as a household cloth, e.g., a window wiping cloth, or the like, an especially high water absorbency is desirable.
More particularly in accordance with the inventlon there is provided, an absorbent sheet textile article having a pair of faces and comprising a consolidated non-woven fabric, and a coating on from about 30Z to 70~ of both faces, said coating being a coagulated foamed dispersion comprising rubber and formed as a three-dimensionally superelevated printed pattern providing a squeegee-like action when wiped over a wet surface.
A doctor effect operates during the use of the moistened cloth in such a way that the embossed coallng of the print pattern wipes liquid from ;
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.~: . . . . -a surface to be cleaned, llke a windshleld wiper, while simultaneously this liquid is absorbed by the bonded fibre material. In spite of the fact that the face of the bonded material is only 70~ or less covered by the print pattern, an excellent wear resistance and stabilization against pilling can be obtained. Preferably, at least 30% of each face should be coated and that the print pattern should not have any continuous essen-tially straight lines or channels which cross the whole or large sections of the face. Print patterns composed of rodlets and/or circles and/or honeycombsand/or wavy or meandering lines or the like have proved especially effective.
The bonded material is strengthened and if necessary needled. The I initial strengthening can be carried out in known manner, with the aid of a conventional bonding agent, or with thermoplastically stiffenable binding fibres. The coating is then sultably effected by known printing methods, using a foam-type, suitably heat sensitive binding agent. The binding agent may suitably comprise mixed polymers of butadiene-acrylonitrile-styrine-rubber-polymers, and if appropriate, in association with acrylic based homo- or copolymers.
After printing with the heat sensitive binding agent dispersion, the foam coagulates at a predetermined temperature, suitably between about 35 and 80C, preferably at about 40 to 50 C. The coating is of distinctly embossed pattern and is either unabsorbed, or insignificantly absorbed, into the interior of the bonded fabric in the course of setting. This ensures the intended drying and doctor effect of the finished product. No continuous !1 ~¦ long unidirectional channels or lines of coating should be formed which would l impede or impair the doctor effect or at the very least would cause a streaky ! cleaning and drying of the surface being wiped.
The bonded fabric comprises known natural and/or synthetic staple and/or continuous fibres which are as absorbent as possible and whose proper-ties, unlike those of the known fabrics coated over the entire faces, e.g.,in accordance with German Patent Specification DT-PS 1,560,783, are fully retained.
A porous, highly absorbent bonded fabric is already known from Ger~an Patent Speclfication DT-PS 1,560,738 furnished on both sides with a - binding agent, particularly a foamed dispersion. The binding agent covers the entire surface uniformly as a film which penetrates part way into the bonded fabric. A particularly high degree of wear resistance is thus achieved.
The bonded material is suitable, for example, as a household cleaning cloth, ~ -a window wiping cloth or the like. Although the wear resistance is greatly improved by the coating of binding agent the properties of the initially soft bonded fabric are affected by the coating so that it becomes more of a synthetic plastic-like product. Dependent on the purpose of the material, therefore, compromises must be made, allowing either a highly wear resistant but no longer completely textile-like product by use of a sufficiently thickly applied coating of binder, or alternatively a soft cloth with only a very thin coating of binder, but which cloth is sub~ect to pilling.
The problem presented by the prior art, therefore, is the need for a flat textile article which is wear resistant, on the one hand, while remain-l ing soft and textile-like on the other. At the same time, because of its ~~ preferred application as a household cloth, e.g., a window wiping cloth, or the like, an especially high water absorbency is desirable.
More particularly in accordance with the inventlon there is provided, an absorbent sheet textile article having a pair of faces and comprising a consolidated non-woven fabric, and a coating on from about 30Z to 70~ of both faces, said coating being a coagulated foamed dispersion comprising rubber and formed as a three-dimensionally superelevated printed pattern providing a squeegee-like action when wiped over a wet surface.
A doctor effect operates during the use of the moistened cloth in such a way that the embossed coallng of the print pattern wipes liquid from ;
, -'' 1 - ~
,B
.. . .
.~: . . . . -a surface to be cleaned, llke a windshleld wiper, while simultaneously this liquid is absorbed by the bonded fibre material. In spite of the fact that the face of the bonded material is only 70~ or less covered by the print pattern, an excellent wear resistance and stabilization against pilling can be obtained. Preferably, at least 30% of each face should be coated and that the print pattern should not have any continuous essen-tially straight lines or channels which cross the whole or large sections of the face. Print patterns composed of rodlets and/or circles and/or honeycombsand/or wavy or meandering lines or the like have proved especially effective.
The bonded material is strengthened and if necessary needled. The I initial strengthening can be carried out in known manner, with the aid of a conventional bonding agent, or with thermoplastically stiffenable binding fibres. The coating is then sultably effected by known printing methods, using a foam-type, suitably heat sensitive binding agent. The binding agent may suitably comprise mixed polymers of butadiene-acrylonitrile-styrine-rubber-polymers, and if appropriate, in association with acrylic based homo- or copolymers.
After printing with the heat sensitive binding agent dispersion, the foam coagulates at a predetermined temperature, suitably between about 35 and 80C, preferably at about 40 to 50 C. The coating is of distinctly embossed pattern and is either unabsorbed, or insignificantly absorbed, into the interior of the bonded fabric in the course of setting. This ensures the intended drying and doctor effect of the finished product. No continuous !1 ~¦ long unidirectional channels or lines of coating should be formed which would l impede or impair the doctor effect or at the very least would cause a streaky ! cleaning and drying of the surface being wiped.
The bonded fabric comprises known natural and/or synthetic staple and/or continuous fibres which are as absorbent as possible and whose proper-ties, unlike those of the known fabrics coated over the entire faces, e.g.,in accordance with German Patent Specification DT-PS 1,560,783, are fully retained.
- 2 ~,.... .
. .
:` 1067765 A description of specific embodiments of the invention follows with reference to the examples.
Example 1 A fleece of tangled fibres comprising 50% by weight cotton and 50%
by weight rayon staple, weighing approximately 100 g/m was preneedled in a known manner and was then impregnated with a 15% mixture of a butadiene-acrylonitrile-rubber polymer to whlch sulphur, zinc oxide and a vulcanization accelerator were added. The fleece was then dried. An intermediate product was obtained with the weight of approximately 140 g/m2. The material was 10 then provided on both sides with a stenciled impression of rodlets, the printing mixture comprising a 40% foam, heat-sensitive dispersion of rubber composed principally like the above-described impregnation mixture, but which contained in addition three parts by weight of a polyvinyl methyl ether to 100 parts rubber dry substance, as a heat-sensitizing agent. The foam coagu-lated at approximately 50C and remained clinging and distinctlyembossed on ,, the surface of the bonding fabric when dried. After drying theembossed print ; pattern of the stencil was clearly distinguishable on the face. The finished product weighed approximately 200 g/m2, i.e., 30 g/m2 print mixture had been applied to each side. About 40 to 60% of the surface of the bonded 20 fabric had been covered by binder print. -Example 2 A fleece of tangled fibres consisting of lOOX rayon staple of thick-ness of between 1.7 and 4.5 den and weighing 85 g/m , was preneedled and impregnated and dried as in Example 1. The flat goods thus obtained weighed 120 g/m2. The material was passed through a 15% salt solution consisting of sodium chloride-calcium chloride in the ratio of 1:1. After drying, an ` absorption of about 100% salt, referred to the weight o the flat goods, was - obtained. A stenciled honeycomb print was applied to both sides of the salted material using a foam acrylonitrile-styrene-rubber polymer which was 30 made heat-sensitive with the aid of a polymeric siloxane solution and which coagulates at about40C when heat-dried. The printed material was washed in water heated to about 60C and then dried. The final weight of the product ~ 3 :-.
` ~ 1067765 was about 170 g/m2.
Example 3 A fleece of tangled fibres consisting of 65% by weight cotton ant 35% by weight polyester fibres, and weighing 75 g/m2 was treated with an impregnation mixture containing one part by weight acrylonitrile-rubber dis- ;
persion and two parts by weight Glauber's salt or common salt. After drying, a flat goods weighlng 175 g/m2 was obtained.
The material was printed using a stencil with an irregular star pattern. The foam print mixture consisted of an acrylonitrile~acrylic-ester-rubber polymer rendered heat sensitive to 45C with a polymeric siloxanesolution. After washing and drying a final product with an embossed pattern of small stars, weighing approximately 165 g/m2, was obtained.
Example 4 ' A tangled fibre fleece comprising 50% cotton, 25% rayon staple and 25% polypropylene or some similar fused fibre, weighing 100 g/m2 was pre-needled, strengthened by heating in a hot current of air and subsequently -by melting of the fused fibres, and was then furnished wlth a stenciled rodlet print as in Example 1. After printing the product was ready for use.
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. .
:` 1067765 A description of specific embodiments of the invention follows with reference to the examples.
Example 1 A fleece of tangled fibres comprising 50% by weight cotton and 50%
by weight rayon staple, weighing approximately 100 g/m was preneedled in a known manner and was then impregnated with a 15% mixture of a butadiene-acrylonitrile-rubber polymer to whlch sulphur, zinc oxide and a vulcanization accelerator were added. The fleece was then dried. An intermediate product was obtained with the weight of approximately 140 g/m2. The material was 10 then provided on both sides with a stenciled impression of rodlets, the printing mixture comprising a 40% foam, heat-sensitive dispersion of rubber composed principally like the above-described impregnation mixture, but which contained in addition three parts by weight of a polyvinyl methyl ether to 100 parts rubber dry substance, as a heat-sensitizing agent. The foam coagu-lated at approximately 50C and remained clinging and distinctlyembossed on ,, the surface of the bonding fabric when dried. After drying theembossed print ; pattern of the stencil was clearly distinguishable on the face. The finished product weighed approximately 200 g/m2, i.e., 30 g/m2 print mixture had been applied to each side. About 40 to 60% of the surface of the bonded 20 fabric had been covered by binder print. -Example 2 A fleece of tangled fibres consisting of lOOX rayon staple of thick-ness of between 1.7 and 4.5 den and weighing 85 g/m , was preneedled and impregnated and dried as in Example 1. The flat goods thus obtained weighed 120 g/m2. The material was passed through a 15% salt solution consisting of sodium chloride-calcium chloride in the ratio of 1:1. After drying, an ` absorption of about 100% salt, referred to the weight o the flat goods, was - obtained. A stenciled honeycomb print was applied to both sides of the salted material using a foam acrylonitrile-styrene-rubber polymer which was 30 made heat-sensitive with the aid of a polymeric siloxane solution and which coagulates at about40C when heat-dried. The printed material was washed in water heated to about 60C and then dried. The final weight of the product ~ 3 :-.
` ~ 1067765 was about 170 g/m2.
Example 3 A fleece of tangled fibres consisting of 65% by weight cotton ant 35% by weight polyester fibres, and weighing 75 g/m2 was treated with an impregnation mixture containing one part by weight acrylonitrile-rubber dis- ;
persion and two parts by weight Glauber's salt or common salt. After drying, a flat goods weighlng 175 g/m2 was obtained.
The material was printed using a stencil with an irregular star pattern. The foam print mixture consisted of an acrylonitrile~acrylic-ester-rubber polymer rendered heat sensitive to 45C with a polymeric siloxanesolution. After washing and drying a final product with an embossed pattern of small stars, weighing approximately 165 g/m2, was obtained.
Example 4 ' A tangled fibre fleece comprising 50% cotton, 25% rayon staple and 25% polypropylene or some similar fused fibre, weighing 100 g/m2 was pre-needled, strengthened by heating in a hot current of air and subsequently -by melting of the fused fibres, and was then furnished wlth a stenciled rodlet print as in Example 1. After printing the product was ready for use.
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Claims (7)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An absorbent sheet textile article having a pair of faces and comprising a consolidated non-woven fabric, and a coating on from about 30% to 70% of both faces, said coating being a coagulated foamed dispersion comprising rubber and formed as a three-dimensionally superelevated printed pattern providing a squeegee-like action when wiped over a wet surface.
2. An absorbent textile sheet article according to claim 1, wherein the squeegee-acting super-elevated pattern comprises a heat-sensitive cross-linked butadiene-acrylonitrile-styrene-rubber copolymer.
3. An absorbent textile sheet article according to claim 1, wherein the superelevated squeegee-acting pattern permits no straight lines longer than about 10 mm to be drawn on its respective face without intersecting the superelevated pattern.
4. An absorbent textile sheet article according to claim 1, wherein the superelevated pattern is printed in a regular geometric pattern.
5. An absorbent sheet textile article according to claim 4, wherein the superelevated squeegee-acting pattern permits no straight lines longer than about 5 mm to be drawn on its respective face without intersecting the superelevated pattern, the sheet material having a fiber weight of about 60 to 300 g/m2, a superelevated rubber weight on each face of about 20 to 40 g/m2, and a super-elevated rubber height of about 0.3 to 1.5 mm.
6. A process for producing an absorbent sheet textile article, comprising impregnating a fibrous web with a binding agent and drying to form a coherent sheet material, applying to each face of said sheet material a foamed dispersioncomprising rubber, the foam being printed onto each said face to cover from about 30 to 70% of such face, and heating to coagulate the foam and to leave on each face a superelevated printed pattern of rubber exerting a squeegee-like action in use.
7. A process according to claim 6, wherein the fibrous web weighs about 60 to 300 g/m2, the foamed dispersion contains butadiene-acrylonitrile-styrene-rubber copolymer, is applied to each face in amount sufficient to deposit about 20 to 40 g of copolymer per square meter of surface in a final height of about 0.3 to 1.5 mm and the superelevated pattern is printed to permit no straight lines longer than about 1 mm to be drawn on its respective face without intersecting the superelevated pattern.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752536440 DE2536440C3 (en) | 1975-08-16 | Absorbent textile fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1067765A true CA1067765A (en) | 1979-12-11 |
Family
ID=5954060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA259,082A Expired CA1067765A (en) | 1975-08-16 | 1976-08-13 | Absorbent textile article with coating of foamed rubber in a three dimensional pattern |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1067765A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11446911B2 (en) | 2016-02-26 | 2022-09-20 | 3M Innovative Properties Company | Consumer scrubbing article with solvent-free texture layer and method of making same |
-
1976
- 1976-08-13 CA CA259,082A patent/CA1067765A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11446911B2 (en) | 2016-02-26 | 2022-09-20 | 3M Innovative Properties Company | Consumer scrubbing article with solvent-free texture layer and method of making same |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2536440A1 (en) | 1977-02-24 |
| DE2536440B2 (en) | 1977-07-14 |
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