US20160017527A1 - Method for coating knitted fabric - Google Patents
Method for coating knitted fabric Download PDFInfo
- Publication number
- US20160017527A1 US20160017527A1 US14/332,188 US201414332188A US2016017527A1 US 20160017527 A1 US20160017527 A1 US 20160017527A1 US 201414332188 A US201414332188 A US 201414332188A US 2016017527 A1 US2016017527 A1 US 2016017527A1
- Authority
- US
- United States
- Prior art keywords
- knitted fabric
- coating
- carrier sheet
- coating layer
- laminate
- 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.)
- Abandoned
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Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/10—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material
- D06B1/14—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller
- D06B1/142—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller where an element is used to mitigate the quantity of treating material that the textile material can retain
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/04—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by pouring or allowing to flow on to the surface of the textile material
- D06B1/06—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by pouring or allowing to flow on to the surface of the textile material flowing along an inclined surface
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/10—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material
- D06B1/14—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/10—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material
- D06B1/14—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller
- D06B1/148—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller the treating material being supplied to the roller by spraying or pouring
Definitions
- the indention relates to a coating method, more particularly to a method for coating a knitted fabric.
- Fabrics based on their structures, can be generally divided into the following categories: woven fabrics, knitted fabrics and non-woven fabrics.
- a woven fabric 91 which is formed by weaving a warp yarn 911 with a weft yarn 912 utilizing a weaving machine, has relatively high mechanical strength but low elasticity in comparison to the knitted fabrics.
- a knitted fabric 92 which is formed by knitting a yarn 921 , has relatively high elasticity but low mechanical strength.
- a coating machine 6 (see FIG. 3 ) can be utilized, where the woven fabric 91 is driven by rollers 61 to pass through a distribution device that distributes a functional coating material 5 so as to form a coating layer 51 on the woven fabric 91 . Since the woven fabric 91 has relatively high mechanical strength, deformation of the woven fabric 91 does not occur. However, such method is not suitable for the knitted fabric 92 due to the high elasticity thereof. That is, when the knitted fabric 92 passes through the coating machine 6 , it will be stretched by the driving rollers 61 along either one of warp or weft directions.
- the knitted fabric 92 may shrink which causes the coating layer 51 to be uneven. Besides, when distributing the functional coating material 5 onto the knitted fabric 92 , the weight of the functional coating material 5 would cause the knitted fabric 92 to deform, thereby resulting in the uneven formation of the coating layer 51 .
- FIG. 4 another conventional method for forming the coating layer 51 on the knitted fabric 92 is illustrated to include the steps of: distributing and drying a coating material 5 on a release film 7 so as to form a coating layer 51 thereon; distributing an adhesive 8 to form an adhesive layer 81 on the knitted fabric 92 ; and attaching the coating layer 51 onto the adhesive layer 81 , followed by removing the release film 7 .
- Such method may alleviate the aforesaid problem but results in a relatively complicated process (e.g., the adhesive layer 81 and the coating layer 51 need to be aligned before bonding) and relatively low production efficiency.
- the object of the present invention is to provide a coating method that may alleviate the aforementioned drawbacks of the prior art.
- a method of the present invention for coating a knitted fabric includes the following steps of:
- FIG. 1 is a schematic perspective view of a woven fabric
- FIG. 2 is an enlarged schematic elevation view of a knitted fabric
- FIG. 3 is a schematic diagram, illustrating a conventional method for coating a woven fabric using a knife-over-roll coating machine
- FIG. 4 is a schematic diagram, illustrating another conventional method for coating the knitted fabric
- FIG. 5 is a flow chart of the preferred embodiment of a method for coating a knitted fabric according to the present invention.
- FIG. 6 is a schematic diagram, illustrating a step of attaching a knitted fabric onto a carrier sheet to form a laminate of the preferred embodiment
- FIG. 7 is a schematic diagram, illustrating a step of trimming edges of the laminate of the preferred embodiment.
- FIG. 8 is a schematic diagram, illustrating a step of forming a coating layer onto a top surface of the knitted fabric of the preferred embodiment.
- the preferred embodiment of a method for coaling a knitted fabric 1 according to the present invention includes the following steps.
- Step 401 attaching the knitted fabric 1 , which remains unstretched, flatly onto a supporting surface 21 of a carrier sheet 2 (see FIG. 6 ) to form a laminate.
- the carrier sheet 2 has a tensile strength greater than that of the knitted fabric 1 .
- the knitted fabric 1 is bonded to the carrier sheet 2 using adhesives 3 , but other approaches, such as sewing or high-frequency thermal bonding, may also be used to combine the carrier sheet 2 and the knitted fabric 1 to form the laminate.
- the carrier sheet 2 is a woven fabric having a dimension substantially the same as that of the knitted fabric 1 . Nevertheless, the dimensions and the configuration of the carrier sheet 2 are not limited to what are disclosed in this embodiment according to the present invention. For example, the dimension of the carrier sheet 2 can be slightly greater than that of the knitted fabric 1 .
- Step 402 trimming and thermal-treating edges of the knitted fabric 1 (see FIG. 7 ), so as to prevent loose threads at the edges of the knitted fabric 1 that would adversely affecting the following coating process.
- Step 403 directly forming a coating layer 51 on a top surface of the knitted fabric 1 , which is opposite to the supporting surface 21 of the carrier sheet 2 (see FIG. 8 ).
- the coating layer 51 is composed of a functional coating material 5 that is selected from the group consisting of polyurethane resin, polymethylmethacrylate resin, rubber, pigment, polyvinylchloride adhesive, colored adhesive, waterproof breathable adhesive, and combinations thereof.
- a functional coating material 5 that is selected from the group consisting of polyurethane resin, polymethylmethacrylate resin, rubber, pigment, polyvinylchloride adhesive, colored adhesive, waterproof breathable adhesive, and combinations thereof.
- Step 403 is conducted by passing the laminate through a knife-over-roll coating machine 6 , wherein the laminate is driven by at least one roller 61 to pass through the coating machine 6 , so as to perform steps of distributing the coating material 5 , removing excess amount of the applied coating material 5 (by a knife) and drying the coating material 5 to form the coating layer 51 .
- the formation of the coating layer 51 should not be limited to use of the knife-over-roll coating process only. For example, utilizing blade coating process, roller coating process or foam coating process in the formation of the coating layer 51 would also suffice in accordance with the present invention.
- the foam coating process which includes steps of mixing thoroughly the coating material 5 with air to form coating foam and applying the coating foam onto the knitted fabric 1 .
- foam coating process can reduce the water content of the functional coating material 5 and effectively increase the drying speed of the coating layer 51 , so as to lower the energy consumption as well as the production cost.
- the coating foam exhibits relatively low mobility to permeate through the knitted fabric 1 , such material is specifically suitable in one-side coating applications such as coloring and the like.
- Step 403 can also be conducted manually instead of utilizing the coating machine 6 .
- Step 404 separating the knitted fabric 1 with the coating layer 51 from the carrier sheet 2 to obtain a coated knitted fabric.
- the carrier sheet 2 which provides the laminate a relatively high mechanical strength in comparison to the knitted fabric 1 per se, deformation of the knitted fabric 1 does not occur along either one of warp and waft directions upon distributing the functional coating material 5 thereon.
- the carrier sheet 2 provides sufficient mechanical support for the knitted fabric 1 to prevent deformation caused by the weight of the functional coating material 5 during the step of forming the coating layer 51 , so that the thickness of the coating layer 51 can remain constant.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
A method for coating a knitted fabric includes the following steps of: attaching a knitted fabric flatly onto a carrier sheet to form a laminate, the carrier sheet having a tensile strength greater than that of the knitted fabric; forming a coating layer onto a top surface of the knitted fabric; and separating the knitted fabric with the coating layer from the carrier sheet.
Description
- 1. Field of the Invention
- The indention relates to a coating method, more particularly to a method for coating a knitted fabric.
- 2. Description of the Related Art
- Fabrics, based on their structures, can be generally divided into the following categories: woven fabrics, knitted fabrics and non-woven fabrics. As shown in
FIG. 1 , awoven fabric 91, which is formed by weaving awarp yarn 911 with aweft yarn 912 utilizing a weaving machine, has relatively high mechanical strength but low elasticity in comparison to the knitted fabrics. On the other hand, as shown inFIG. 2 , a knittedfabric 92, which is formed by knitting ayarn 921, has relatively high elasticity but low mechanical strength. - When the
woven fabric 91 needs to be coated with afunctional coating layer 51 to attain various functions (such as water-resistance or breathability), a coating machine 6 (seeFIG. 3 ) can be utilized, where thewoven fabric 91 is driven byrollers 61 to pass through a distribution device that distributes afunctional coating material 5 so as to form acoating layer 51 on thewoven fabric 91. Since thewoven fabric 91 has relatively high mechanical strength, deformation of thewoven fabric 91 does not occur. However, such method is not suitable for the knittedfabric 92 due to the high elasticity thereof. That is, when the knittedfabric 92 passes through thecoating machine 6, it will be stretched by thedriving rollers 61 along either one of warp or weft directions. After the knittedfabric 92 is coated with thecoating layer 51 and is released by therollers 61, the knittedfabric 92 may shrink which causes thecoating layer 51 to be uneven. Besides, when distributing thefunctional coating material 5 onto the knittedfabric 92, the weight of thefunctional coating material 5 would cause the knittedfabric 92 to deform, thereby resulting in the uneven formation of thecoating layer 51. - Referring to
FIG. 4 , another conventional method for forming thecoating layer 51 on the knittedfabric 92 is illustrated to include the steps of: distributing and drying acoating material 5 on arelease film 7 so as to form acoating layer 51 thereon; distributing an adhesive 8 to form anadhesive layer 81 on the knittedfabric 92; and attaching thecoating layer 51 onto theadhesive layer 81, followed by removing therelease film 7. Such method may alleviate the aforesaid problem but results in a relatively complicated process (e.g., theadhesive layer 81 and thecoating layer 51 need to be aligned before bonding) and relatively low production efficiency. - Therefore, the object of the present invention is to provide a coating method that may alleviate the aforementioned drawbacks of the prior art.
- Accordingly, a method of the present invention for coating a knitted fabric includes the following steps of:
- (a) attaching a knitted fabric flatly onto a carrier sheet to form a laminate, the carrier sheet having a tensile strength greater than that of the knitted fabric;
- (b) forcing a coating layer onto a top surface of the knitted fabric; and
- (c) separating the knitted fabric with the coating layer from the carrier sheet.
- Other features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiment with reference to the accompanying drawings, of which:
-
FIG. 1 is a schematic perspective view of a woven fabric; -
FIG. 2 is an enlarged schematic elevation view of a knitted fabric; -
FIG. 3 is a schematic diagram, illustrating a conventional method for coating a woven fabric using a knife-over-roll coating machine; -
FIG. 4 is a schematic diagram, illustrating another conventional method for coating the knitted fabric; -
FIG. 5 is a flow chart of the preferred embodiment of a method for coating a knitted fabric according to the present invention; -
FIG. 6 is a schematic diagram, illustrating a step of attaching a knitted fabric onto a carrier sheet to form a laminate of the preferred embodiment; -
FIG. 7 is a schematic diagram, illustrating a step of trimming edges of the laminate of the preferred embodiment; and -
FIG. 8 is a schematic diagram, illustrating a step of forming a coating layer onto a top surface of the knitted fabric of the preferred embodiment. - Referring to
FIGS. 5 to 8 , the preferred embodiment of a method for coaling a knittedfabric 1 according to the present invention includes the following steps. - Step 401: attaching the knitted
fabric 1, which remains unstretched, flatly onto a supportingsurface 21 of a carrier sheet 2 (seeFIG. 6 ) to form a laminate. Thecarrier sheet 2 has a tensile strength greater than that of the knittedfabric 1. As depicted inFIG. 6 , the knittedfabric 1 is bonded to thecarrier sheet 2 using adhesives 3, but other approaches, such as sewing or high-frequency thermal bonding, may also be used to combine thecarrier sheet 2 and the knittedfabric 1 to form the laminate. In this embodiment, thecarrier sheet 2 is a woven fabric having a dimension substantially the same as that of the knittedfabric 1. Nevertheless, the dimensions and the configuration of thecarrier sheet 2 are not limited to what are disclosed in this embodiment according to the present invention. For example, the dimension of thecarrier sheet 2 can be slightly greater than that of the knittedfabric 1. - Step 402: trimming and thermal-treating edges of the knitted fabric 1 (see
FIG. 7 ), so as to prevent loose threads at the edges of the knittedfabric 1 that would adversely affecting the following coating process. - Step 403: directly forming a
coating layer 51 on a top surface of the knittedfabric 1, which is opposite to the supportingsurface 21 of the carrier sheet 2 (seeFIG. 8 ). Thecoating layer 51 is composed of afunctional coating material 5 that is selected from the group consisting of polyurethane resin, polymethylmethacrylate resin, rubber, pigment, polyvinylchloride adhesive, colored adhesive, waterproof breathable adhesive, and combinations thereof. In this embodiment, as shown inFIG. 8 ,Step 403 is conducted by passing the laminate through a knife-over-rollcoating machine 6, wherein the laminate is driven by at least oneroller 61 to pass through thecoating machine 6, so as to perform steps of distributing thecoating material 5, removing excess amount of the applied coating material 5 (by a knife) and drying thecoating material 5 to form thecoating layer 51. However, it should be noted that the formation of thecoating layer 51 should not be limited to use of the knife-over-roll coating process only. For example, utilizing blade coating process, roller coating process or foam coating process in the formation of thecoating layer 51 would also suffice in accordance with the present invention. - It is worth noting that when the
functional coating material 5 includes water-borne components, the foam coating process, which includes steps of mixing thoroughly thecoating material 5 with air to form coating foam and applying the coating foam onto the knittedfabric 1, is preferred. Such foam coating process can reduce the water content of thefunctional coating material 5 and effectively increase the drying speed of thecoating layer 51, so as to lower the energy consumption as well as the production cost. In the meantime, since the coating foam exhibits relatively low mobility to permeate through the knittedfabric 1, such material is specifically suitable in one-side coating applications such as coloring and the like. - It is also worth noting that a plurality of the
coating layers 51, which are composed of variousfunctional coating materials 51, can be sequentially formed on the knittedfabric 1 by performingStep 403 repeatedly. In addition,Step 403 can also be conducted manually instead of utilizing thecoating machine 6. -
Step 404; separating the knittedfabric 1 with thecoating layer 51 from thecarrier sheet 2 to obtain a coated knitted fabric. - By utilizing the
carrier sheet 2, which provides the laminate a relatively high mechanical strength in comparison to the knittedfabric 1 per se, deformation of the knittedfabric 1 does not occur along either one of warp and waft directions upon distributing thefunctional coating material 5 thereon. In addition, since the knittedfabric 1 is disposed on the supportingsurface 21 of thecarrier sheet 2, thecarrier sheet 2 provides sufficient mechanical support for the knittedfabric 1 to prevent deformation caused by the weight of thefunctional coating material 5 during the step of forming thecoating layer 51, so that the thickness of thecoating layer 51 can remain constant. - While the present invention has been described in connection with what is considered the most practical and preferred embodiment, it is understood that this invention is not limited to the disclosed embodiment but is intended to cover various arrangements included within the spirit and scope of the broadest interpretation so as to encompass all such modifications and equivalent arrangements. What is claimed is;
Claims (13)
1. A method for coating a knitted fabric, comprising the following steps of:
(a) attaching a knitted fabric flatly onto a carrier sheet to form a laminate, the carrier sheet having a tensile strength greater than that of the knitted fabric;
(b) forming a coating layer onto a top surface of the knitted fabric; and
(c) separating the knitted fabric with the coating layer from the carrier sheet.
2. The method of claim 1 , wherein step (b) is conducted by passing the laminate through a coating machine.
3. The method of claim 1 , further comprising a step (a1) of trimming edges of the knitted fabric after step (a).
4. The method of claim 1 , wherein, in step (a), the knitted fabric is attached to the carrier sheet by adhesives.
5. The method of claim 1 , wherein, in step (a), the knitted fabric is attached to the carrier sheet by sewing.
6. The method of claim 1 , wherein, in step (a), the knitted fabric is attached to the carrier sheet by high-frequency thermal bonding.
7. The method of claim 2 , wherein, in step (b), the laminate is driven by at least one roller to pass through the coating machine.
8. The method of claim 1 , wherein, in step (b), the coating layer is formed by roller coating.
9. The method of claim 1 , wherein, in step (b), the coating layer is formed by knife-over-roll coating.
10. The method of claim 1 , wherein, in step (b), the coating layer is formed by blade coating.
11. The method of claim 1 , wherein, in step (b), the coating layer is formed by foam coating.
12. The method of claim 1 , wherein, in step (b), the coating layer is composed of a functional coating material that is selected from, the group consisting of polyurethane resin, polymethylmethacrylate resin, rubber, pigment, polyvinylchloride adhesive, colored adhesive, waterproof breathable adhesive, and combinations thereof.
13. The method of claim 1 , wherein, in step (a), the carrier sheet is a woven fabric.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/332,188 US20160017527A1 (en) | 2014-07-15 | 2014-07-15 | Method for coating knitted fabric |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/332,188 US20160017527A1 (en) | 2014-07-15 | 2014-07-15 | Method for coating knitted fabric |
Publications (1)
Publication Number | Publication Date |
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US20160017527A1 true US20160017527A1 (en) | 2016-01-21 |
Family
ID=55074101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/332,188 Abandoned US20160017527A1 (en) | 2014-07-15 | 2014-07-15 | Method for coating knitted fabric |
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US (1) | US20160017527A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10166722B2 (en) | 2016-03-28 | 2019-01-01 | Fabricoat Industrial Corp. | Method for making a coated fabric |
-
2014
- 2014-07-15 US US14/332,188 patent/US20160017527A1/en not_active Abandoned
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10166722B2 (en) | 2016-03-28 | 2019-01-01 | Fabricoat Industrial Corp. | Method for making a coated fabric |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: FABRICOAT INDUSTRIAL CORP., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LIN, KWANG-HUO;REEL/FRAME:033318/0211 Effective date: 20140702 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |