CN118292284A - Knitted fabric thread-off preventing structure, knitted fabric, and method for producing knitted fabric - Google Patents
Knitted fabric thread-off preventing structure, knitted fabric, and method for producing knitted fabric Download PDFInfo
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- CN118292284A CN118292284A CN202311792193.4A CN202311792193A CN118292284A CN 118292284 A CN118292284 A CN 118292284A CN 202311792193 A CN202311792193 A CN 202311792193A CN 118292284 A CN118292284 A CN 118292284A
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- 239000004744 fabric Substances 0.000 title claims abstract description 176
- 230000003405 preventing effect Effects 0.000 title claims abstract description 59
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 107
- 239000011347 resin Substances 0.000 claims abstract description 107
- 239000000839 emulsion Substances 0.000 claims abstract description 41
- 239000002904 solvent Substances 0.000 claims abstract description 16
- 229920005749 polyurethane resin Polymers 0.000 claims description 39
- 238000011084 recovery Methods 0.000 claims description 16
- 239000007787 solid Substances 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 11
- 239000004925 Acrylic resin Substances 0.000 claims description 8
- 229920000178 Acrylic resin Polymers 0.000 claims description 8
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- 238000005520 cutting process Methods 0.000 description 4
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- 229920000742 Cotton Polymers 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
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- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
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- 239000002964 rayon Substances 0.000 description 1
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- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Knitting Of Fabric (AREA)
Abstract
The invention provides a thread-off preventing structure for a fabric, a knitted fabric and a method for manufacturing the knitted fabric, wherein thread-off from a cut edge is prevented and good skin touch and appearance can be realized. The technical means is to form a resin layer (10) coated with any kind of resin solution selected from resin emulsion, solvent-based resin solution or water-soluble resin solution on the whole surface of one side surface of a knitted fabric (1) and interweave resin (11) forming the resin layer at interweaving parts (3) of ground yarns (2) forming the knitted fabric (1), wherein the weight ratio of the resin layer (10) is set to be 5-25 wt% relative to the total weight of the knitted fabric (1) and the resin layer (10).
Description
Technical Field
The present invention relates to a thread-off preventing structure for a knitted fabric, and a method for manufacturing a knitted fabric.
Background
Patent document 1 proposes a garment having a split-edge opening portion formed of a knitted fabric in which a heat-fusible elastic yarn and a yarn other than the heat-fusible elastic yarn are knitted by a plating structure and the heat-fusible elastic yarn is fused by a heat-setting process to provide a yarn-off preventing function.
The knitted fabric with the thread off preventing function does not need to carry out post-treatment for turning over and sewing the cut edges of the cloth and wrapping and sewing the cut edges with other cloth such as cloth belts and the like to prevent the thread off around the edges.
Patent document 2 proposes a clothing material that uses a cut edge that is cut and is treated with a polyurethane elastomer at an edge portion of the cut edge, thereby imparting stretchability while eliminating a thread breakage and curling.
The cloth is manufactured through the following steps: a step of superposing a base plate having a predetermined cloth shape and having a long hole formed at least at a position opposite to the cut edge on a knitted fabric having an original cut edge after cutting to form the cloth; a step of applying a resin to the knitted fabric by pouring a polyurethane elastomer resin onto the base plate; a cutting step of cutting the upper part of the coated coating layer; and a combining step of combining the cut knitted fabric into a predetermined shape.
Prior art literature
Patent literature
Patent document 1: japanese patent laid-open publication No. 2005-113349
Patent document 2: japanese patent laid-open No. 2007-186829
Disclosure of Invention
Problems to be solved by the invention
When the knitted fabric disclosed in patent document 1 is used, there is obtained an excellent effect that post-treatment for preventing thread off is not required, but there are: in order to knit a hot-melt elastic yarn and a yarn other than the yarn by a plating structure and heat-set the yarn, there are problems that the manufacturing process becomes complicated and that the knitted fabric tends to become heavy although it is light, which involves a wearing sensation.
In the clothing disclosed in patent document 2, since the knitted fabric coated with the polyurethane elastomer resin is cut along the cut edge in advance, there is room for improvement from the viewpoints of the influence of the contact of the edge of the resin coating region of a specific width formed on the cut edge with the skin, the influence of the resin coating region of a specific width on the skin side, the influence of the resin coating region of a specific width on the appearance of the clothing on the side opposite to the skin side, and the like.
The purpose of the present invention is to provide a thread-off prevention structure for a knitted fabric, which prevents thread off from the edge of a cut edge and can achieve good skin touch and appearance, a knitted fabric, and a method for producing a knitted fabric.
Means for solving the problems
In order to achieve the above object, a first feature of the thread-off preventing structure of a knitted fabric according to the present invention is that: a knitted fabric thread-releasing preventing structure for preventing thread releasing at the cut edge is formed with a resin layer coated with a resin solution on the whole surface of one side surface of the knitted fabric, and the resin constituting the resin layer is interwoven with the interweaving part of the ground yarn constituting the knitted fabric.
By applying the resin solution to one side surface of the knitted fabric, a resin layer can be uniformly formed on the entire surface of the knitted fabric, and by interlacing the resin of the resin layer with the interlacing portions of the ground yarns constituting the knitted fabric, the yarn breakage of the ground yarns from the cut edges can be suppressed, and by the presence of the resin layer, the yarn slippage between the fibers constituting the ground yarns can be suppressed, and the floating of the ground yarns from the knitted fabric except for the interlacing portions of the ground yarns in the vicinity of the cut edges can be suppressed, as a result, the yarn breakage of the fibers can be effectively suppressed.
The second feature of the thread-off preventing structure of the knitted fabric of the present invention is that: in addition to the first characteristic configuration, the resin solution is any one selected from a resin emulsion, a solvent-based resin solution, and a water-soluble resin solution.
The resin solution to be applied for forming the resin layer on the entire surface of one side surface of the knitted fabric may be appropriately selected from any one of a resin emulsion, a solvent-based resin solution, and a water-soluble resin solution.
The third feature of the thread-off preventing structure of the knitted fabric of the present invention is that: in addition to the first characteristic structure, the weight ratio of the resin layer is 5 to 25wt% based on the total weight of the knitted fabric and the resin layer.
When the weight ratio is 5 to 25wt%, the weight of the knitted fabric as a whole is not significantly increased, and the knitted fabric having the yarn-break preventing structure can provide a good wearing feeling as compared with the conventional yarn-break preventing clothing using a plated yarn structure using a hot-melt elastic yarn.
The fourth feature of the thread-off preventing structure of the knitted fabric according to the present invention is that: in addition to the second characteristic constitution, the resin emulsion is an aqueous polyurethane resin emulsion having a solid content concentration of 10 to 50 wt%.
As the resin emulsion, an aqueous urethane resin emulsion can be appropriately selected, and by setting the solid content concentration of the aqueous urethane resin emulsion to a range of 10wt% to 50wt%, it is possible to uniformly coat the surface of the knitted fabric in an appropriate amount.
A fifth feature of the thread-off preventing structure of the knitted fabric according to the present invention is that: in addition to the second characteristic constitution, the solvent-based resin solution is an acrylic resin solution having a solid content concentration of 5 to 50 wt%.
As the solvent-based resin solution, an acrylic resin solution can be appropriately selected, and by setting the solid content concentration of the acrylic resin solution to a range of 5wt% to 50wt%, it is possible to uniformly coat the surface of the knitted fabric in an appropriate amount.
The first feature of the knitted fabric of the present invention is that: the knitted fabric having the yarn-off preventing structure according to any of the first to fifth aspects has a resistance to bending deformation, that is, a stiffness in the range of 10cN to 50cN, an elongation of 60% or more, and a tensile recovery of 20% or more.
When the stiffness and flexibility are in the range of 10cN to 50cN, the elongation is 60% or more, and the stretch recovery is 20% or more, the garment can be effectively used as a garment having a good feel of wearing.
The first characteristic of the method for producing a knitted fabric according to the present invention is that: a method for manufacturing a knitted fabric having a thread-off preventing structure for preventing thread-off at a cut edge, comprising the steps of: a coating step of forming a resin layer by coating a resin solution on the entire surface of one side surface of the knitted fabric; a pressurizing step of pressurizing the wet knitted fabric having the resin layer formed thereon; and a drying step of drying the pressed knitted fabric.
By applying the resin solution in the application step, a resin layer can be formed uniformly over the entire surface of one side surface of the knitted fabric, and the raised nap on the surface of the knitted fabric can be reversed and flattened by the pressurizing step. In addition, when the resin applied in the application step is densely adhered to the nap portion, the resin may be dispersed to the periphery by the pressurization step, and the resin constituting the resin layer may be interwoven with the interwoven portion of the ground yarn constituting the knitted fabric, thereby exhibiting the thread-off preventing effect, and the solvent constituting the resin solution may be gasified in the subsequent drying step.
Effects of the invention
As described above, according to the present invention, it is possible to provide a thread-off preventing structure for a knitted fabric, and a method for producing a knitted fabric, which can prevent thread off from the edge of a cut edge and can realize good skin touch and appearance.
Drawings
Fig. 1: (a) An explanatory view of the ground structure of the knitted fabric, and (b) an explanatory view of the state of the water-soluble polyurethane resin emulsion sprayed.
Fig. 2: (a) An explanatory view of a heated and dried knitted fabric, and (b) an explanatory view of a cut edge of the knitted fabric.
Fig. 3 is an explanatory view of a method for producing a knitted fabric having a thread-off preventing structure of a knitted fabric according to the present invention.
Fig. 4: the surface, back and cross section of the knitted fabric having the yarn-run preventing structure obtained by applying the polyurethane resin emulsion to the surface of the knitted fabric are shown in (a) a photograph showing the surface, back and cross section of the untreated knitted fabric, (b) a photograph showing the surface, back and cross section of the knitted fabric having the yarn-run preventing structure obtained by immersing the knitted fabric in the polyurethane resin emulsion.
Description of the reference numerals
1: Knitted fabric
2: Ground yarn
3: Interweaving part
5: Edge cutting edge
10: Resin layer (polyurethane resin layer)
11: Resin (polyurethane resin)
Detailed Description
The yarn-break preventing structure of the knitted fabric, and the method for producing the knitted fabric according to the present invention will be described below with reference to the drawings.
Anti-off structure of knitted fabric
The thread-off preventing structure of the knitted fabric according to the present invention is a thread-off preventing structure which does not require post-processing such as hemming processing, folding sewing processing, etc. for preventing thread-off at the cut edge of the knitted fabric. Specifically, the resin layer is formed by applying any one of a resin emulsion, a solvent-based resin solution, and a water-soluble resin solution to the entire surface of one side surface of the knitted fabric, and the resin constituting the resin layer is interwoven at the interwoven portion of the ground yarn constituting the knitted fabric.
It is preferable to use an aqueous urethane resin emulsion as the resin emulsion and an acrylic resin solution as the resin solution.
Fig. 2 (a) and (b) show examples in which the yarn-releasing preventing structure of the knitted fabric according to the present invention is applied to a plain knitted fabric using cotton yarn as the ground yarn 2.
The thread-off preventing structure of the knitted fabric 1 is a structure for preventing thread-off of the cut edge 5 of the knitted fabric 1, in which a polyurethane resin layer 10 formed by spraying an emulsion of polyurethane resin 11 (hereinafter referred to as "polyurethane resin emulsion") is formed on the entire surface of one side surface of the knitted fabric 1, and the polyurethane resin 11 is interwoven on the interweaving portions 3 of the ground yarn 2 constituting the knitted fabric 1.
The polyurethane resin emulsion is sprayed on one side surface of the knitted fabric 1, whereby the polyurethane resin layer 10 can be uniformly formed on the entire surface of the knitted fabric 1, and the polyurethane resin 11 is interwoven with the interwoven portion 3 of the ground yarn constituting the knitted fabric 1, whereby the ground yarn 2 from the cut edge 5 can be prevented from being stripped. Further, due to the presence of the urethane resin layer 10, the slippage between the fibers constituting the ground yarn 2 can be suppressed, and the floating of the ground yarn 2 from the knitted fabric 1 except for the interlacing portion 3 of the ground yarn 2 in the vicinity of the cut edge 5 can be suppressed, with the result that the yarn detachment of the fibers can be effectively suppressed.
The weight ratio of the polyurethane resin layer 10 is preferably in the range of 5wt% to 25wt%, more preferably in the range of 5wt% to 17.5wt%, with respect to the total weight of the knitted fabric 1 and the polyurethane resin layer 10. The knitted fabric 1 as a whole has no significant weight increase, and the clothing using the knitted fabric 1 having the yarn-break preventing structure can have a good wearing feel as compared with the conventional yarn-break preventing clothing using a plating structure using a hot-melt elastic yarn. When the weight ratio is less than 5wt%, the excellent thread-off preventing function cannot be exhibited, and when the weight ratio is more than 25wt%, the knitted fabric 1 becomes hard and the skin feel is deteriorated.
The polyurethane resin emulsion is preferably adjusted to a solid content concentration of 10wt% to 50wt%, and more preferably to a solid content concentration of 20wt% to 45 wt%. By setting the solid content concentration of the polyurethane resin emulsion to a range of 10wt% to 50wt%, it is possible to uniformly spray the surface of the knitted fabric 1 in an appropriate amount. When the solid content is less than 10wt%, it is difficult to form the polyurethane resin layer 10 uniformly on the knitted fabric 1, and there is a risk that a part of the knitted fabric 1 cannot exert the thread-off preventing function. When the solid content concentration is more than 50wt%, the polyurethane resin layer 10 formed on the knitted fabric 1 is excessively thick, and the feel of the skin deteriorates. In addition, there are cases where homogenous spraying becomes difficult.
The excellent properties of the polyurethane resin emulsion include flexibility with moderate stretch recovery and toughness of the coating film exhibiting the anti-dislocation function.
Examples of such polyurethane resin emulsion include SUPERFLEX E-2000, available from first Industrial pharmaceutical Co.
Fig. 3 shows a method for producing a knitted fabric using the above-described yarn-break preventing structure of a knitted fabric. The knitted fabric 1 dried in the knitting step, dyeing step, and softening step is transported by a transport device, and polyurethane resin emulsion is sprayed by a resin spray nozzle 20, and then the nap of the knitted fabric 1 is flattened by pressing by a press roller 30, and droplets of polyurethane resin 11 densely adhered to the nap portion are dispersed by pressing, whereby the resin constituting the resin layer is interwoven on the interwoven portion of the ground yarn constituting the knitted fabric, and the yarn-off preventing effect is exhibited. (in this state, the polyurethane resin layer 10 is formed on the entire one side surface of the knitted fabric 1 shown in fig. 1 (b))
That is, a coating step of forming the urethane resin layer 10 by spraying the urethane resin emulsion on the entire surface of one side surface of the knitted fabric 1 and a pressurizing step of pressurizing the wet knitted fabric on which the urethane resin layer is formed are performed.
After the pressurizing step, the knitted fabric 1 is transported to the drying device 40 by the transport device, and dried in a heated state by a heat source provided in the drying device 40, and the drying step is performed. In the drying step, the knitted fabric 1 is heated to 80 to 160 ℃, preferably to 100 to 140 ℃, whereby the state in which the polyurethane resin 11 is interwoven with the interwoven portion 3 of the ground yarn 2 of the knitted fabric 1 is maintained while the dispersion medium, that is, the water evaporates, whereby the yarn-off preventing effect can be exhibited (this state indicates the state in which the polyurethane resin 11 is interwoven with the interwoven portion 3 with a darker shade as shown in fig. 2 (a)). Since the polyurethane resin layer 10 is formed on the entire surface of one side surface of the knitted fabric 1, the fibers constituting the ground yarn 2 are hard to slip and take off from each other.
Fig. 2 (b) shows a cut edge 5 when the knitted fabric 1 having the thread-off preventing structure configured as described above is cut. The movement of the fibers near the cut edge 5 is restricted by the urethane resin layer 10, and the fibers are hard to slip between each other, and the urethane resin 11 is interwoven in the interwoven portion 3 of the ground yarn 2, so that a good thread-off preventing function can be exhibited.
The knitted fabric 1 of the present invention preferably has a resistance to bending deformation, i.e., a stiffness and flexibility (JIS L1096.21) in the range of 10cN to 50cN, more preferably in the range of 15cN to 35 cN. When the stiffness is less than 10cN, there is a problem that it is difficult to perform a process such as sewing, and when the stiffness is more than 50cN, there is an inconvenience that the feel of the skin is poor.
The stiffness and flexibility were obtained by the E method (softness-o-meter method) of JIS L1096. A test piece of 100mm by 100mm was placed on the test bed so that the measurement direction of the test piece was perpendicular to the slot. Next, the blade was lowered to 8mm from the surface of the test bed, and the test piece was pressed. The width of the slot was measured as 10 mm. The measurement was performed at several different positions on the front and back surfaces in the longitudinal and transverse directions, respectively, at a position ranging from either side to 1/3 of the width of the test piece, and the highest value displayed by the recorder was read. The sum of the highest values of the four sides is calculated.
The knitted fabric of the present invention preferably has an elongation (JIS L1096 8.14) of 60% or more, more preferably 70% or more. The tensile recovery (JIS L1096 8.16) is preferably 20% or more, more preferably 25% or more.
The tensile recovery rate is also called tensile elastic rate, and is measured by the following method with reference to the E method (repeated constant load method) of JIS L1096. Test pieces 30mm in width and 50mm in length were adjusted to be transverse, and marks were added at intervals (L0) of 30 mm. After setting the test pieces in a tensile testing machine in which the gripping interval is set to 30mm or an apparatus having the same performance as that of the tensile testing machine, a constant load is applied. Constant load means that loads respectively adapted to the respective varieties are used. In this example, a load of 1.67N was applied to each 10mm width, and the length (L1) between marks was measured. Then, the load is removed, and after load application and load removal are performed again, the length (L2) between the marks is measured again. The elongation (%) and the tensile recovery (%) were determined by the following methods.
Elongation (%) = (L1-L0)/L0
Stretch recovery (%) = { (L1-L2)/(L1-L0) } ×100
In the above embodiment, the explanation was made with respect to the example in which the resin layer formed on the entire surface of one side surface of the knitted fabric 1 was the urethane resin layer 10 formed by spraying the urethane resin emulsion, but as the resin layer formed on the entire surface of one side surface of the knitted fabric 1, a resin emulsion other than the urethane resin emulsion may be used. Examples thereof include vinyl chloride resin emulsion, acrylic styrene resin emulsion, silicone resin emulsion, urethane resin emulsion, epoxy resin emulsion, and fluororesin emulsion.
In the case of using these resin emulsions, the solid content concentration is preferably adjusted to a range of 5wt% to 50wt%, more preferably to a range of 20wt% to 45 wt%.
Instead of the resin emulsion, a solvent-based resin solution may be used to form a resin layer on the entire surface of one side surface of the knitted fabric 1. For example, a resin solution in which an acrylic resin is dissolved in ethyl acetate or the like as a solvent may be sprayed over the entire surface of one side surface of the knitted fabric 1. The method for producing the knitted fabric having the thread-off preventing structure is the same as that described in fig. 3, except that the resin sprayed from the resin spray nozzle 20 is an acrylic resin solution.
Examples of the solvent-based resin solution include an ester-based resin solution, a nylon-based resin solution, and a silicone-based resin solution, in addition to an acrylic-based resin solution.
When the solvent-based resin solution is used, the weight ratio of the resin layer is preferably in the range of 5wt% to 25wt%, more preferably in the range of 5wt% to 17.5wt%, relative to the total weight of the knitted fabric and the resin layer. As the resin solution, an acrylic resin solution having a solid content concentration of 5wt% to 50wt% can be suitably used.
When a solvent-based resin solution is used, the solvent is vaporized at normal temperature, and thus, no special heat treatment is required in the drying step.
Furthermore, a water-soluble resin solution may be used instead of the solvent-based resin solution. As the water-soluble resin solution, an acrylamide resin solution or the like can be suitably used.
In this case, the weight ratio of the resin layer is also preferably in the range of 5wt% to 25wt%, more preferably 5wt% to 17.5wt%, relative to the total weight of the knitted fabric and the resin layer.
In the above description, the method of spraying the resin layer on the entire surface of one side surface of the knitted fabric 1 has been described, but as the method of coating, roll coating, gravure coating, doctor blade coating, or the like can be used in addition to spraying.
The knitted fabric 1 thus obtained also preferably has a resistance to bending deformation, i.e., a stiffness and flexibility in the range of 10cN to 50cN, an elongation of preferably 60% or more, and a tensile recovery of preferably 20% or more.
The knitted fabric 1 suitable for the present invention includes: weft knitted fabrics such as plain stitch, rib stitch, double-reverse stitch and the like; warp knitted fabrics such as warp plain weave, warp pile weave, warp satin weave and the like. Circular knit is included in weft knit.
The fibers constituting the knitted fabric may be natural fibers such as cotton, regenerated cellulose fibers such as cuprammonium fibers and viscose rayon, and synthetic fibers such as blended yarns with natural fibers and polyesters, in addition to natural fibers, may be used as appropriate.
Examples
The following describes examples.
Example 1
As shown in fig. 3, a finished and dried rib knitted fabric (cotton 50%, rayon 50%) was wound up at a speed of 90 mm/sec, an aqueous polyurethane emulsion (superfex E-2000 manufactured by first industrial pharmaceutical co.) was sprayed on the surface of the knitted fabric, and the knitted fabric was rolled and subjected to a heat drying step to obtain a rib knitted fabric having a thread-off preventing structure. The polyurethane resin weight ratio, stiffness, elongation, recovery, and evaluation of thread breakage of the obtained knitted fabric are summarized in table 1. Fig. 4 (a) shows a plurality of photographs including a photograph of a cut cross section of the knitted fabric obtained. The polyurethane resin 11 dyed red with the fiber discrimination reagent BOKENSTAIN II was present from the surface of the knitted fabric 1 to the vicinity of the center in the thickness direction of the knitted fabric 1, but it was confirmed that the polyurethane resin 11 could not be seen on the back surface of the knitted fabric 1. By BOKENSTAIN II, the cotton-wadded quilt constituting the knitted fabric 1 was dyed a blue-based color, and the polyurethane was dyed a red-based color.
Example 2
A rib knitting fabric having a thread run-off preventing structure was produced in the same manner as in example 1, except that the winding speed of the rib knitting fabric was set to 130 mm/sec. The polyurethane resin weight ratio, stiffness, elongation, recovery, and evaluation of thread breakage of the obtained knitted fabric are summarized in table 1.
Example 3
A rib knitting fabric having a thread run-off preventing structure was produced in the same manner as in example 1, except that the winding speed of the rib knitting fabric was 170 mm/sec. The polyurethane resin weight ratio, stiffness, elongation, recovery, and evaluation of thread breakage of the obtained knitted fabric are summarized in table 1.
Example 4
A rib knitting fabric having a thread-off preventing structure was produced in the same manner as in example 1, except that an acrylic solution (ARONTACK manufactured by eastern asia synthesis corporation) was used as a spray resin. The polyurethane resin weight ratio, stiffness, elongation, recovery, and evaluation of thread breakage of the obtained knitted fabric are summarized in table 1.
Comparative example 1
A rib knit fabric was produced in the same manner as in example 1, except that the aqueous polyurethane emulsion was not sprayed. The polyurethane resin weight ratio, stiffness, elongation, recovery, and evaluation of thread breakage of the obtained knitted fabric are summarized in table 1. Fig. 4 (a) shows a plurality of photographs including a photograph of a cut cross section of the knitted fabric obtained. The knitted fabric may be dyed blue with the fiber discrimination reagent BOKENSTAIN II.
Comparative example 2
A rib knit fabric having a thread run-off preventing structure was produced in the same manner as in example 2, except that the rib knit fabric was immersed (immersed) in the aqueous polyurethane emulsion instead of spraying the aqueous polyurethane emulsion to the rib knit fabric. The polyurethane resin weight ratio, stiffness, elongation, recovery, and evaluation of thread breakage of the obtained knitted fabric are summarized in table 1. Fig. 4 (b) shows a plurality of photographs including a photograph of a cut cross section of the knitted fabric obtained. The polyurethane resin 11 dyed red by the fiber discrimination reagent BOKENSTAIN II was confirmed on both surfaces of the knitted fabric 1, and the polyurethane resin 11 impregnated into the internal fiber was changed to a brown color.
Comparative example 3
A rib knitting fabric having a thread-off preventing structure was produced in the same manner as in example 4, except that the spray amount of the acrylic solution (ARONTACK manufactured by eastern asia synthesis co.) was reduced to 1/5. The polyurethane resin weight ratio, stiffness, elongation, recovery, and evaluation of thread breakage of the obtained knitted fabric are summarized in table 1.
In the off-line evaluation of the present invention, the knitted fabric was cut with scissors, continuously washed for 300 minutes by a home two-layer washing machine, and the dried knitted fabric was evaluated.
< Evaluation of off-line >)
The cut portion of the knitted fabric was evaluated by visual inspection.
And (3) the following materials: no take-off of the thread
And (2) the following steps: slight visible off-line
Delta: visible off-line
X: severe line disconnection
[ Table 1]
Industrial applicability
By adopting the yarn-off preventing structure of the knitted fabric according to the present invention, it is possible to provide a knitted fabric or clothing in which the characteristics of the fibers constituting the knitted fabric are utilized, and no deliberate yarn-off preventing treatment is performed, and yarn-off does not occur from the cut edge.
Claims (7)
1. A thread-off preventing structure of a knitted fabric, which is a thread-off preventing structure of a knitted fabric for preventing thread-off at a cut edge, wherein a resin layer formed by coating a resin solution is formed on the whole surface of one side surface of the knitted fabric, and resin forming the resin layer is interwoven at interweaving parts of ground yarns forming the knitted fabric.
2. The thread-off preventing structure of a knitted fabric according to claim 1, wherein the resin solution is any one selected from a resin emulsion, a solvent-based resin solution, and a water-soluble resin solution.
3. The thread-off preventing structure of a knitted fabric according to claim 1, wherein a weight ratio of the resin layer is 5wt% to 25wt% with respect to a total weight of the knitted fabric and the resin layer.
4. The thread-off preventing structure of a knitted fabric according to claim 2, wherein the resin emulsion is an aqueous polyurethane resin emulsion having a solid content concentration of 10 to 50 wt%.
5. The thread-off preventing structure of a knitted fabric according to claim 2, wherein the solvent-based resin solution is an acrylic resin solution having a solid content concentration of 5 to 50 wt%.
6. A knitted fabric comprising the yarn-off preventing structure according to any one of claims 1 to 5, wherein the knitted fabric has a resistance to bending deformation, i.e., a stiffness in the range of 10cN to 50cN, an elongation of 60% or more, and a tensile recovery of 20% or more.
7. A method for producing a knitted fabric having a thread-off preventing structure for preventing a cut edge from thread-off, comprising the steps of:
a coating step of forming a resin layer by coating a resin solution on the entire surface of one side surface of the knitted fabric;
A pressurizing step of pressurizing the knitted fabric in a wet state in which the resin layer is formed; and
And a drying step of drying the pressed knitted fabric.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022-209405 | 2022-12-27 | ||
| JP2022209405A JP2024093193A (en) | 2022-12-27 | 2022-12-27 | Structure for preventing unraveling of knitted fabric, knitted fabric, and method for manufacturing knitted fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118292284A true CN118292284A (en) | 2024-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311792193.4A Pending CN118292284A (en) | 2022-12-27 | 2023-12-22 | Knitted fabric thread-off preventing structure, knitted fabric, and method for producing knitted fabric |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2024093193A (en) |
| CN (1) | CN118292284A (en) |
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2022
- 2022-12-27 JP JP2022209405A patent/JP2024093193A/en active Pending
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2023
- 2023-12-22 CN CN202311792193.4A patent/CN118292284A/en active Pending
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| Publication number | Publication date |
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| JP2024093193A (en) | 2024-07-09 |
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