CA1121562A - Carpet face fiber washer - Google Patents
Carpet face fiber washerInfo
- Publication number
- CA1121562A CA1121562A CA000315368A CA315368A CA1121562A CA 1121562 A CA1121562 A CA 1121562A CA 000315368 A CA000315368 A CA 000315368A CA 315368 A CA315368 A CA 315368A CA 1121562 A CA1121562 A CA 1121562A
- Authority
- CA
- Canada
- Prior art keywords
- fabric
- liquid
- carpet
- front surface
- face
- 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
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- Treatment Of Fiber Materials (AREA)
Abstract
CARPET FACE FIBER WASHER
Abstract of the Disclosure A method for the liquid treatment of one side of a fabric, preferably a carpet, having a front surface to be liquid treated and a back surface which is not to be wetted by the liquid. The front surface of the fabric is sprayed with liquid without wetting the back surface of the fiber.
Vacuum extraction is used to remove the bulk of the liquid from the fabric, thus reducing the extent of oven drying needed to dry the fabric.
Abstract of the Disclosure A method for the liquid treatment of one side of a fabric, preferably a carpet, having a front surface to be liquid treated and a back surface which is not to be wetted by the liquid. The front surface of the fabric is sprayed with liquid without wetting the back surface of the fiber.
Vacuum extraction is used to remove the bulk of the liquid from the fabric, thus reducing the extent of oven drying needed to dry the fabric.
Description
Background of the Invention Field of the Invention The invention is directed to a method of liquid treating a fabric and, more particularly, to a method for face fiber only washing and subsequent drying of a carpet.
Description of the Prior Art The existing state of the art in the carpet industry to wash and clean dyed and printed carpet is to totally immerse the carpet in a number of wash baths using various washing com-ponents, such as in-bath agitators, spray manifolds and showers, counter flow techniques, squeeze rolls, and vacuum extraction.
In all present washing systems, the carpet, either backed, foam backed, unitary backed, or secondary backed, becomes completely saturated with wash water. Eventually, this wash water must be removed after final washing, usually by a com-bination of high pressure-squeeze rolls which cause pile crush, multiple vacuum slots, and primarily lengthy drying ovens.
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~:~ZJ 562 l~rennan -2-U. S. Patent 3,922,738 discloses a fabric-treating apparatus composed of modular washing sections wherein the forward section serves as a scouring chamber while the aft section serves as a drying chamber.
The patent discloses the use of spray nozzles in the scouring chamber to spray solvent on the web as it is carried underneath. As the fabric leaves the scouring charnber, it passes over a suction box 82 which removes the solvent from the web.
U. S. Patent 3,938,356 discloses a web finishing machine comprising a flow drum mounted in the casing wherein spray nozzle devices are arranged so as to direct moisture to only one side of a moving web.
The patent also discloses an adjustable suction channel located below the drum for ventilating the drum.
U. S. Patent 3,503,370 discloses a coating apparatus for applying a composite to one side of a web which continuously moves around a back-up roll. The structure of the patent discloses the use of an adjustable slot 4, but this slot does not serve as a vacuum slot.
The "face fiber only" washing concept was conceived to provide the same or improved washing of all carpet, particularly the face yarn, as now done while minimizing or eliminating the wetting or saturation by water of the back side of the carpet. This, in turn, minimizes the need for lengthy drying ovens. A11 of the washing components for the face yarns would be utilized on the "face side" or the yarn side of the processed carpet. The washing liquid is not driven through the carpet structure from the front to back of the carpet.
Summary of the Invention The invention is directed to a method for the liquid treatment of one side of a fabric having a front surface to be liquid treated and a back surface which is not to be wetted with a liquid. The liquid is ~Brennan -3-~:IZ1562 sprayed on the front side of the fabric to wet the front surface of the fabric without the wetting of the back surface thereof. A vacuum extrac-tion means removes a substantial portion of the liquid from the fabric.
A spraying step is carried out while the fabric is moving aro~md a roller with the face surface o~ the fabric facing outward from the roller so that the fabric is curved and its face is opened up to receive the liquid. After the vacuum extraction operation, the fabric is placed in a conventional drying oven to carry out the drying of the fabric.
The invention is particularly adaptable for use in washing carpet wherein the liquid is sprayed on the carpet face fibers to wet and wash only the carpet face fibers and not wet the serim or backing of the carpet.
The advantage of the method herein is not only the eonservation of water usage but is a tremendous energy savings in that there is a great reduction of energy needed to dry earpets which are washed in the eonventional manner. Carpets whieh are washed in the normal manner eontain a substantial amount of water in their baeking whieh must be removed from the carpet. This requires the use of a lengthy drying oven. The teehnique herein never places the water in the backing so, therefore, there is no need to use a large amount of energy to extract water from the back of the carpet. The vacuum extraction means removes a substantial portion of the water which is placed on the carpet face so there is a further reduetion in the need for leng-thy drying in eonven-tional ovens.
Brief Description of the Dra.wings -Figure 1 is a showing of a conventional fabric treating process Figure 2 is a schematic showing of the improved fabric treating process containing the inventive washing and drying invention herein; -and Brennan -4-~215f~2 Figure 3 is a schematic showing of the apparatus for carrying out the washing and liquid extraction invention herein.
Description of the Preferred Embodiment Normally carpet would be printed by a printing means 2. The carpet would then move onto a steaming means 4 which sets the dye in the carpet. The carpet then moves through a series of wash baths 6 which wash out the excess unfixed dye and other residual material from the carpet. The carpet would then move on to an oven 8 where it would be dryed. Obviously, the wash ba-ths completely saturate the carpet, and particularly with a foam back carpet, a substantial volume of water is contained in the carpet. Therefore, a large energy use exists in a conventional drying oven which simply maintains a heated environment to vaporize the water to drive it off from the carpet. It is not unusual for a conventional drying oven for carpeting to be 120 feet long and to pass the carpet through the oven with a path of travel of 120 or 240 feet at a temperature of 300F. in order to dry the carpet.
The invention herein is capable of use for many different liquid treatment operations on a fabric. One may simply be interested in using the method to carry out the washing of one side of a fabric.
The invention could also be utilized for treatment of a fabric to provide it with certain characteristics. For example, fabric could be treated with a liquid which would tend to make it waterproof or soil resistant.
Further, the inventive method could be utilized to dye or color the fabric.
The fabric being treated normally is a material of some thick-ness which need not be wetted or which would not be normally wet completely through when passed through the spray chamber. The invention herein is not particularly applicable to fabrics such as used for clothing.
Brennan -5-~Z1~6~
However, it co~d be utilized for heavy upholstery fabric, carpeting, and like material. It is particularly useful with carpeting which has a face fiber varying from about 1/16" to 2" in length. Face fiber is normally used in conjunction with a backing, which could be simply jute or some synthetic, non-woven or woven material or could extend to a combination backing which is a combination of jute and a layer of foam which is upwards to 1/2" in thickness. The invention herein is particu-larly useful with carpeting which has a foam backing.
The invention herein was specifically designed for the washing of the face fibers of a carpet structure without the wetting of the foam on the back of the carpet. With conventional techniques utilizing wash tanks, the foam becomes saturated with the liquid. Heavy squeezing must be utilized to get a large amount of the wash water out of the carpet and foam. The carpet then must be subjected to extensive drying to dry the water not only from the face fiber of the carpet but the heavy foam backing. Utilizing the inventive method described below and comparing it relative to a conventional foam back carpet product, there can be secured a 40% savings in fuel usage under some circumstances when one is attempting to dry a carpet to an acceptable dry level of 2%-3% of moisture based on dry weight. A carpet which has been washed in a dip tank will have approximately a 200%-~00% moisture content. Squeezing or other liquid removal steps, other than oven heating, will lower the moisture content to 35%. A carpet which is washed by the face fiber washer herein and subjected to the vacuum extraction step herein will have a moisture content for the carpet of approximately 12%. Consequently, the conventional oven structure is only needed to lower the moisture content from 12% to approximately 2%-3% of the fabric dry weight. If one were to take the above mentioned carpet which had a moisture content of 35%
~!rennan -6-l~LZ~562 because it had not been washed by the face fiber washer and then sub-jected to vacuum extraction, the conventional oven would have to move the moisture content of the carpet from 35% to 2~-3%. Obviously, a substantial amount of energy would be needed as compared to the energy needed in the inventive face fiber washing and vacuum ex-traction invention herein.
The inventive method herein is directed to a technique for liquid treatment of one side of a fabric having a front surface which is to be liquid treated and a back surface which is not to be wetted, or at least saturated, with liquid. The invention is particularly applicable to a carpet wherein the front surface of the fabric is the face yarns of the carpet and the back surface of the fabric is the carpet back. There will be a substantially impermeable barrier in the carpet structure.
This impermeable barrier may be the carpet scrim or it may be the latex which is applied to the carpet scrim and would be between the secondary backing or the foam backing of the carpet and the face yarns of the carpet. The liquid is applied to the front surface of the fabric through the use of conven-tional spray nozzles which normally operate under low pressure, low volume conditions. The liquid will wet the front surface of the carpet without any substantial wetting of the back surface of the carpet. Particularly with a foam backing or a secondary backing on the carpet, the impermeable barrier will be between these backings and the face yarns. Vacuum extraction means are then utilized -to remove excess liquid from the face of the fabric. ~ormally, the spraying and vacuum operation is carried out in -two liquid treatment steps to secure, with carpet particularly, a good washing of the carpet. Also, the carpet is normally, but not necessarily, passed around the surface of a roller with the face side of the carpet extending outward. I~hen the carpet is Brennan -7-l:~Z15~;Z
in this configuration, it is treated with a liquid spray treatment and vacuum extraction. The roller provides the advantage of opening up the face yarns to permit good penetration of the wash liquid into the face fibers of the carpet face yarns and extraction therefrom.
Referring now to Figure 2 of the drawings, there is shown the carpet treatment process utilizing the inventive system herein. Again, a conventional printer 2 is used in conjunction with a conventional steamer ~ to provide the carpet with some type of coloring in the form of a design and to fix the dye in the steamer. The carpet then passes through the inventive face fiber washing and vacuum extraction system 9 which is shown in Figure 3 in detail and will be explained below. The carpet then passes on to a conventional drying oven 8.
Referring now to Figure 3 of the drawing, there is shown schematically the face fiber washer and vacuum extraction invention herein. The fabric or carpeting 11 of conventional structure is passed along rollers 12, 13, 1~, 15, and 16. The side of the fabric to be treated, or the face fiber yarn side of the carpet, faces away from the surface of the rollers 12-16. Spray nozzles 18 adjacent the upper surface of roller 12 direct a low pressure, low volume washing liquid against the face of the fabric 11. The nozzles may be conventional Model 32 Broughton Oscillator Nozzles or Model 3715 Broughton Shower Nozzles. These nozzles direct the washing liquid at the face of the fabric and dispense liquid at about 70 pounds per square inch with a flow rate of 1.5 gallons per minute of liquid per nozzle. It is obvious that the thickness of the material being treated or the thickness of the material to be washed must control the amount of liquid deposited and the pressure that the liquid is supplied. The guiding principal is that one must deposit sufficient liquid to carry out the desired treatment at erennan -8-1~2~562 a pressure sufficient to penetrate the area that is being treated. The liquid must be so directed against the fabric that one does not saturate the back of the fabric with liquid and thus require the extraction of this excess liquid from the back of the fabric. Similar nozzles 20 are utilized adjacent roller 15 to repeat the washing operation so that it is carried out, with carpeting, preferably, in two steps.
Immediately after the nozzles 18 and 20, there is positioned vacuum means 22 and 24. The vacuum means may be single or d~al slot vacuum structures which are placed very close to the face of the fabric while on or off the rollers 13 and 16. These operate with a vacuum in the range of 15" of mercury. The vacuum nozzles may be positioned adjacent the fabric while it is flat after it has left the rollers 12 and 15, or it may be positioned against the fabric while it is on the periphery of the rollers 13 and 16.
Utilizing the conventional nozzle stuctures above described and the vacuum means above described against the carpet product having a foam backing of .18" of thickness with a face fiber acrylic yarn of .28"
and a face fiber weight of 35 oz./sq. yd., the carpet was satisfactorily washed, and it left the above described treatment apparatus with a substantial moisture content in only the face fiber of the carpet.
Comparing this with the most advanced wash tank system now being used, the same type of carpet would have a larger moisture content after washing since the whole carpet is wet. It is obvious that there has been a substantial reduction in water content in the washed carpe-t.
Conventional carpet squeezing, etc., will only lower the completely wetted carpet after dip tank washing to about a 35% moisture content. The face fiber washing and vacuum extraction will lower the moisture content of the face fiber only washed carpet to 12%. Therefore, Rrennan -9-lL~L~156~
substantially less energy will be needed to take the carpet to an acceptable dry state of 2~-3jl moisture.
_ g _
Description of the Prior Art The existing state of the art in the carpet industry to wash and clean dyed and printed carpet is to totally immerse the carpet in a number of wash baths using various washing com-ponents, such as in-bath agitators, spray manifolds and showers, counter flow techniques, squeeze rolls, and vacuum extraction.
In all present washing systems, the carpet, either backed, foam backed, unitary backed, or secondary backed, becomes completely saturated with wash water. Eventually, this wash water must be removed after final washing, usually by a com-bination of high pressure-squeeze rolls which cause pile crush, multiple vacuum slots, and primarily lengthy drying ovens.
q~
'~ .
.
- ~ ~
-:' - :
~:~ZJ 562 l~rennan -2-U. S. Patent 3,922,738 discloses a fabric-treating apparatus composed of modular washing sections wherein the forward section serves as a scouring chamber while the aft section serves as a drying chamber.
The patent discloses the use of spray nozzles in the scouring chamber to spray solvent on the web as it is carried underneath. As the fabric leaves the scouring charnber, it passes over a suction box 82 which removes the solvent from the web.
U. S. Patent 3,938,356 discloses a web finishing machine comprising a flow drum mounted in the casing wherein spray nozzle devices are arranged so as to direct moisture to only one side of a moving web.
The patent also discloses an adjustable suction channel located below the drum for ventilating the drum.
U. S. Patent 3,503,370 discloses a coating apparatus for applying a composite to one side of a web which continuously moves around a back-up roll. The structure of the patent discloses the use of an adjustable slot 4, but this slot does not serve as a vacuum slot.
The "face fiber only" washing concept was conceived to provide the same or improved washing of all carpet, particularly the face yarn, as now done while minimizing or eliminating the wetting or saturation by water of the back side of the carpet. This, in turn, minimizes the need for lengthy drying ovens. A11 of the washing components for the face yarns would be utilized on the "face side" or the yarn side of the processed carpet. The washing liquid is not driven through the carpet structure from the front to back of the carpet.
Summary of the Invention The invention is directed to a method for the liquid treatment of one side of a fabric having a front surface to be liquid treated and a back surface which is not to be wetted with a liquid. The liquid is ~Brennan -3-~:IZ1562 sprayed on the front side of the fabric to wet the front surface of the fabric without the wetting of the back surface thereof. A vacuum extrac-tion means removes a substantial portion of the liquid from the fabric.
A spraying step is carried out while the fabric is moving aro~md a roller with the face surface o~ the fabric facing outward from the roller so that the fabric is curved and its face is opened up to receive the liquid. After the vacuum extraction operation, the fabric is placed in a conventional drying oven to carry out the drying of the fabric.
The invention is particularly adaptable for use in washing carpet wherein the liquid is sprayed on the carpet face fibers to wet and wash only the carpet face fibers and not wet the serim or backing of the carpet.
The advantage of the method herein is not only the eonservation of water usage but is a tremendous energy savings in that there is a great reduction of energy needed to dry earpets which are washed in the eonventional manner. Carpets whieh are washed in the normal manner eontain a substantial amount of water in their baeking whieh must be removed from the carpet. This requires the use of a lengthy drying oven. The teehnique herein never places the water in the backing so, therefore, there is no need to use a large amount of energy to extract water from the back of the carpet. The vacuum extraction means removes a substantial portion of the water which is placed on the carpet face so there is a further reduetion in the need for leng-thy drying in eonven-tional ovens.
Brief Description of the Dra.wings -Figure 1 is a showing of a conventional fabric treating process Figure 2 is a schematic showing of the improved fabric treating process containing the inventive washing and drying invention herein; -and Brennan -4-~215f~2 Figure 3 is a schematic showing of the apparatus for carrying out the washing and liquid extraction invention herein.
Description of the Preferred Embodiment Normally carpet would be printed by a printing means 2. The carpet would then move onto a steaming means 4 which sets the dye in the carpet. The carpet then moves through a series of wash baths 6 which wash out the excess unfixed dye and other residual material from the carpet. The carpet would then move on to an oven 8 where it would be dryed. Obviously, the wash ba-ths completely saturate the carpet, and particularly with a foam back carpet, a substantial volume of water is contained in the carpet. Therefore, a large energy use exists in a conventional drying oven which simply maintains a heated environment to vaporize the water to drive it off from the carpet. It is not unusual for a conventional drying oven for carpeting to be 120 feet long and to pass the carpet through the oven with a path of travel of 120 or 240 feet at a temperature of 300F. in order to dry the carpet.
The invention herein is capable of use for many different liquid treatment operations on a fabric. One may simply be interested in using the method to carry out the washing of one side of a fabric.
The invention could also be utilized for treatment of a fabric to provide it with certain characteristics. For example, fabric could be treated with a liquid which would tend to make it waterproof or soil resistant.
Further, the inventive method could be utilized to dye or color the fabric.
The fabric being treated normally is a material of some thick-ness which need not be wetted or which would not be normally wet completely through when passed through the spray chamber. The invention herein is not particularly applicable to fabrics such as used for clothing.
Brennan -5-~Z1~6~
However, it co~d be utilized for heavy upholstery fabric, carpeting, and like material. It is particularly useful with carpeting which has a face fiber varying from about 1/16" to 2" in length. Face fiber is normally used in conjunction with a backing, which could be simply jute or some synthetic, non-woven or woven material or could extend to a combination backing which is a combination of jute and a layer of foam which is upwards to 1/2" in thickness. The invention herein is particu-larly useful with carpeting which has a foam backing.
The invention herein was specifically designed for the washing of the face fibers of a carpet structure without the wetting of the foam on the back of the carpet. With conventional techniques utilizing wash tanks, the foam becomes saturated with the liquid. Heavy squeezing must be utilized to get a large amount of the wash water out of the carpet and foam. The carpet then must be subjected to extensive drying to dry the water not only from the face fiber of the carpet but the heavy foam backing. Utilizing the inventive method described below and comparing it relative to a conventional foam back carpet product, there can be secured a 40% savings in fuel usage under some circumstances when one is attempting to dry a carpet to an acceptable dry level of 2%-3% of moisture based on dry weight. A carpet which has been washed in a dip tank will have approximately a 200%-~00% moisture content. Squeezing or other liquid removal steps, other than oven heating, will lower the moisture content to 35%. A carpet which is washed by the face fiber washer herein and subjected to the vacuum extraction step herein will have a moisture content for the carpet of approximately 12%. Consequently, the conventional oven structure is only needed to lower the moisture content from 12% to approximately 2%-3% of the fabric dry weight. If one were to take the above mentioned carpet which had a moisture content of 35%
~!rennan -6-l~LZ~562 because it had not been washed by the face fiber washer and then sub-jected to vacuum extraction, the conventional oven would have to move the moisture content of the carpet from 35% to 2~-3%. Obviously, a substantial amount of energy would be needed as compared to the energy needed in the inventive face fiber washing and vacuum ex-traction invention herein.
The inventive method herein is directed to a technique for liquid treatment of one side of a fabric having a front surface which is to be liquid treated and a back surface which is not to be wetted, or at least saturated, with liquid. The invention is particularly applicable to a carpet wherein the front surface of the fabric is the face yarns of the carpet and the back surface of the fabric is the carpet back. There will be a substantially impermeable barrier in the carpet structure.
This impermeable barrier may be the carpet scrim or it may be the latex which is applied to the carpet scrim and would be between the secondary backing or the foam backing of the carpet and the face yarns of the carpet. The liquid is applied to the front surface of the fabric through the use of conven-tional spray nozzles which normally operate under low pressure, low volume conditions. The liquid will wet the front surface of the carpet without any substantial wetting of the back surface of the carpet. Particularly with a foam backing or a secondary backing on the carpet, the impermeable barrier will be between these backings and the face yarns. Vacuum extraction means are then utilized -to remove excess liquid from the face of the fabric. ~ormally, the spraying and vacuum operation is carried out in -two liquid treatment steps to secure, with carpet particularly, a good washing of the carpet. Also, the carpet is normally, but not necessarily, passed around the surface of a roller with the face side of the carpet extending outward. I~hen the carpet is Brennan -7-l:~Z15~;Z
in this configuration, it is treated with a liquid spray treatment and vacuum extraction. The roller provides the advantage of opening up the face yarns to permit good penetration of the wash liquid into the face fibers of the carpet face yarns and extraction therefrom.
Referring now to Figure 2 of the drawings, there is shown the carpet treatment process utilizing the inventive system herein. Again, a conventional printer 2 is used in conjunction with a conventional steamer ~ to provide the carpet with some type of coloring in the form of a design and to fix the dye in the steamer. The carpet then passes through the inventive face fiber washing and vacuum extraction system 9 which is shown in Figure 3 in detail and will be explained below. The carpet then passes on to a conventional drying oven 8.
Referring now to Figure 3 of the drawing, there is shown schematically the face fiber washer and vacuum extraction invention herein. The fabric or carpeting 11 of conventional structure is passed along rollers 12, 13, 1~, 15, and 16. The side of the fabric to be treated, or the face fiber yarn side of the carpet, faces away from the surface of the rollers 12-16. Spray nozzles 18 adjacent the upper surface of roller 12 direct a low pressure, low volume washing liquid against the face of the fabric 11. The nozzles may be conventional Model 32 Broughton Oscillator Nozzles or Model 3715 Broughton Shower Nozzles. These nozzles direct the washing liquid at the face of the fabric and dispense liquid at about 70 pounds per square inch with a flow rate of 1.5 gallons per minute of liquid per nozzle. It is obvious that the thickness of the material being treated or the thickness of the material to be washed must control the amount of liquid deposited and the pressure that the liquid is supplied. The guiding principal is that one must deposit sufficient liquid to carry out the desired treatment at erennan -8-1~2~562 a pressure sufficient to penetrate the area that is being treated. The liquid must be so directed against the fabric that one does not saturate the back of the fabric with liquid and thus require the extraction of this excess liquid from the back of the fabric. Similar nozzles 20 are utilized adjacent roller 15 to repeat the washing operation so that it is carried out, with carpeting, preferably, in two steps.
Immediately after the nozzles 18 and 20, there is positioned vacuum means 22 and 24. The vacuum means may be single or d~al slot vacuum structures which are placed very close to the face of the fabric while on or off the rollers 13 and 16. These operate with a vacuum in the range of 15" of mercury. The vacuum nozzles may be positioned adjacent the fabric while it is flat after it has left the rollers 12 and 15, or it may be positioned against the fabric while it is on the periphery of the rollers 13 and 16.
Utilizing the conventional nozzle stuctures above described and the vacuum means above described against the carpet product having a foam backing of .18" of thickness with a face fiber acrylic yarn of .28"
and a face fiber weight of 35 oz./sq. yd., the carpet was satisfactorily washed, and it left the above described treatment apparatus with a substantial moisture content in only the face fiber of the carpet.
Comparing this with the most advanced wash tank system now being used, the same type of carpet would have a larger moisture content after washing since the whole carpet is wet. It is obvious that there has been a substantial reduction in water content in the washed carpe-t.
Conventional carpet squeezing, etc., will only lower the completely wetted carpet after dip tank washing to about a 35% moisture content. The face fiber washing and vacuum extraction will lower the moisture content of the face fiber only washed carpet to 12%. Therefore, Rrennan -9-lL~L~156~
substantially less energy will be needed to take the carpet to an acceptable dry state of 2~-3jl moisture.
_ g _
Claims (10)
1. A method for the liquid treatment of one side of a moving fabric having a front surface to be liquid treated and a back surface which is not to be substantially wetted with the liquid, consisting of the steps of:
(a) moving a fabric for liquid treatment and drying;
(b) treating the front surface of the moving fabric with a liquid to wet at least the front surface thereof;
(c) drying the fabric to substantially remove all of the liquid from the fabric; and (d) the improvement comprising:
(1) the above said treating step comprising spraying the front surface of the moving fabric with a liquid to wet the front surface of the fabric without driving liquid through the fabric and substantially wetting the back surface thereof; and (2) extracting at least a portion of the liquid from the moving fabric by a fixedly positioned vacuum extraction means prior to the above mentioned drying step.
(a) moving a fabric for liquid treatment and drying;
(b) treating the front surface of the moving fabric with a liquid to wet at least the front surface thereof;
(c) drying the fabric to substantially remove all of the liquid from the fabric; and (d) the improvement comprising:
(1) the above said treating step comprising spraying the front surface of the moving fabric with a liquid to wet the front surface of the fabric without driving liquid through the fabric and substantially wetting the back surface thereof; and (2) extracting at least a portion of the liquid from the moving fabric by a fixedly positioned vacuum extraction means prior to the above mentioned drying step.
2. The method of claim 1 wherein the spraying and extraction steps are repeated to cause two liquid treatment steps to be carried out.
3. The method of claim 1 wherein the spraying step is carried out with the fabric carried face surface outward on the surface of a roller to open up the face surface of the fabric during the spraying step.
4. The method of claim 1 wherein the extraction step is carried out with the fabric carried face surface outward on the surface Brennan -11-of a roller to open up the face surface of the fabric during the extrac-tion step.
5. The method of claim 1 wherein the fabric is a carpet and the front surface of the fabric is the face yarns of the carpet and the back surface of the fabric is a foam carpet backing, and the spraying step is carried out to only wet out completely the face yarns of the carpet.
6. The method for liquid treatment of a fabric as set forth in claim 1 wherein said liquid treating step leaves the fabric with liquid on only the front surface of the fabric, and said vacuum extrac-tion step lowers the moisture content of the fabric to approximately 12%
prior to the time that the fabric goes through the drying step, which then removes substantially all the liquid from the fabric to bring the fabric to a 2%-3% moisture content.
prior to the time that the fabric goes through the drying step, which then removes substantially all the liquid from the fabric to bring the fabric to a 2%-3% moisture content.
7. An apparatus for liquid treatment of one side of a fabric having a front surface to be liquid treated and a back surface which is not to be substantially wetted with the liquid, said apparatus comprising:
(a) means for moving a fabric for liquid treatment and drying;
(b) liquid-applying means adjacent the front surface of the moving fabric and positioned to wet at least that front surface of the fabric;
(c) drying means for drying the fabric to substantially remove all the liquid from the fabric; and (d) the improvement comprising:
(1) said liquid-applying means being a liquid-spraying means adjacent the front surface of the moving fabric and Brennan -12-positioned to wet the front surface of the fabric with a liquid without substantially wetting the back surface thereof; and (2) a vacuum extraction means extracting at least a portion of the liquid from the moving fabric prior to the above mentioned drying means.
(a) means for moving a fabric for liquid treatment and drying;
(b) liquid-applying means adjacent the front surface of the moving fabric and positioned to wet at least that front surface of the fabric;
(c) drying means for drying the fabric to substantially remove all the liquid from the fabric; and (d) the improvement comprising:
(1) said liquid-applying means being a liquid-spraying means adjacent the front surface of the moving fabric and Brennan -12-positioned to wet the front surface of the fabric with a liquid without substantially wetting the back surface thereof; and (2) a vacuum extraction means extracting at least a portion of the liquid from the moving fabric prior to the above mentioned drying means.
8. The apparatus of claim 7 wherein two sequential spraying means and vacuum extraction means are positioned to cause two liquid treatments of the fabric to be carried out.
9. The apparatus of claim 7 wherein a roller means is used to carry the fabric with the face surface of the fabric positioned outwardly from the surface of the roller to open up the face surface of the fabric adjacent the spraying means.
10. The apparatus of claim 9 wherein the vacuum extraction means is positioned adjacent the fabric while said fabric is carried on the surface of the roller.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US89413478A | 1978-04-06 | 1978-04-06 | |
| US894,134 | 1978-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1121562A true CA1121562A (en) | 1982-04-13 |
Family
ID=25402651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000315368A Expired CA1121562A (en) | 1978-04-06 | 1978-10-31 | Carpet face fiber washer |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1121562A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5381592A (en) * | 1992-10-01 | 1995-01-17 | Milliken Research Corporation | Method to refurbish carpet tiles |
| CN107630306A (en) * | 2017-11-06 | 2018-01-26 | 郑州华德地毯集团有限公司 | Carpet printing water washing device and its washing process |
| CN108973317A (en) * | 2018-08-29 | 2018-12-11 | 山东源丰纺织机械有限公司 | Pre- water washing device before carpet ink stamp |
| CN115999991A (en) * | 2023-02-01 | 2023-04-25 | 山东江山纤维科技有限公司 | Carbon fiber net child preparation facilities |
-
1978
- 1978-10-31 CA CA000315368A patent/CA1121562A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5381592A (en) * | 1992-10-01 | 1995-01-17 | Milliken Research Corporation | Method to refurbish carpet tiles |
| CN107630306A (en) * | 2017-11-06 | 2018-01-26 | 郑州华德地毯集团有限公司 | Carpet printing water washing device and its washing process |
| CN108973317A (en) * | 2018-08-29 | 2018-12-11 | 山东源丰纺织机械有限公司 | Pre- water washing device before carpet ink stamp |
| CN108973317B (en) * | 2018-08-29 | 2024-05-07 | 山东源丰纺织机械有限公司 | Pre-washing device for carpet before printing with ink |
| CN115999991A (en) * | 2023-02-01 | 2023-04-25 | 山东江山纤维科技有限公司 | Carbon fiber net child preparation facilities |
| CN115999991B (en) * | 2023-02-01 | 2023-05-30 | 山东江山纤维科技有限公司 | Carbon fiber net child preparation facilities |
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