JP2021014662A - Method of producing double fleece fabric and dyed yarn - Google Patents

Abstract

To provide double fleece fabric that can shrink to return or be close to the original state from a stretched state.SOLUTION: Double fleece fabric 1 comprises a first structure 10 that is formed of tie-in yarn 11 representing a weft stitching structure having a back stitching surface and a face stitching surface, a second structure 20 that is formed of knit-in yarn 21 representing a weft stitching structure having a back stitching surface and a face stitching surface in which the face stitching surface is overlaid over the back stitching surface of the first structure 10, and a third structure 30 that connects the overlaid surfaces to the front stitching surface of the first structure 10 in a manner where no other structure appears. Knit-in yarn 31 included in the third structure 30 is elastic yarn that is arranged along a course 10A of the first structure 10 and exerts a resilient force to resist extension in a direction in which the course 10A extends.SELECTED DRAWING: Figure 1

Description

The present invention relates to a double fleece knitted fabric and a method for producing a dyed yarn used for the double fleece knitted fabric.

The double fleece knitted fabric is a first structure and a second structure forming a weft knitting structure, each of which has a back surface and a front surface, and the front surface in the second organization is the first organization. In a state of being overlapped on the surface of the back, these first tissue and a third tissue different from the second tissue are connected so that no other tissue appears on the front surface of the first tissue. It refers to an organization that becomes. This double fleece knitted fabric is, for example, a known organization disclosed in Patent Document 1 below. In the double fleece knitted fabric, the thread forming the first structure is "tie-in thread", the thread forming the second structure is "inlay thread", and the thread forming the third structure is "knit-in thread". Sometimes called.

Utility Model Announcement No. 5794

The double fleece knitted fabric disclosed in Patent Document 1 has a weak resistance to collapse due to elongation, and therefore remains stretched due to use.

The present invention provides a double fleece knitted fabric that can shrink from a stretched state and return to its original state or approach its original state.

According to one feature in the present invention, a double fleece knitted fabric having a first structure, a second structure, and a third structure is provided. Here, the first structure is composed of tie-in yarns knitted so as to exhibit a weft knitting structure having a back surface and a front surface. Further, the second structure is composed of inlay yarns woven so as to exhibit a weft knitting structure having a back surface and a front surface, and the front surface in the weft structure is the first. Overlaid on the surface of the back in the tissue. Further, the third structure includes a knit-in yarn that connects the second structure and the first structure in a state where no other structure appears on the front surface of the first structure. This knit-in yarn is an elastic yarn that is arranged along a course in the weft knitting structure of the first structure and exerts an elastic force that resists elongation in the direction in which this course extends.

A weft-knitted structure having a back surface and a front surface has a property that the structure is more likely to extend in the direction in which the course extends than in the direction in which the wale extends. Here, the above-mentioned double fleece knitted fabric causes the elastic yarn of the third tissue to exert an elastic force against the extension in the direction in which the course extends in the first structure. Therefore, in the above double fleece knitted fabric, the resistance to the collapse of the first structure due to stretching is supplemented by the elastic yarn of the third structure, and the stretched state is shrunk to return to the original state or to the original state. It becomes possible to approach.

In the above double fleece knitted fabric, the tie-in yarn is preferably knitted so as to exhibit the weft knitting structure of the first structure with the surface of the tie-in yarn covered with the coating film. In this case, the coating film has the size of the contact angle when the coating film comes into contact with water in the air, the size of the contact angle when the tie-in yarn comes into contact with water in the air, and , 90 [°], which is larger than any of the substances.

In this case, one side of the double fleece knitted fabric is in a state where only the front side in the first structure composed of tie-in yarn whose surface is covered with a coating film appears. Here, since the first structure is a weft knitting structure having stitches having a fine concavo-convex structure, air is contained therein in the air. Further, in the first structure, the extension in the direction in which the course extends is suppressed by the elastic thread of the third structure, so that the stitches in the direction in which the course extends are kept dense. Further, the coating film covers the surface of the tie-in yarn constituting the first structure, thereby increasing the contact angle when the surface of the front surface in the first structure comes into contact with water in the air 90 [ Set to a value greater than °]. Therefore, the above-mentioned double fleece knitted fabric is super-water repellent on one surface thereof (air on the surface of an object having a contact angle larger than 90 [°] when in contact with water in the air). In the presence of a fine concavo-convex structure containing the above, the concavo-convex structure makes it more difficult for the surface of the object to get wet), and thus the water repellency of the one side surface can be improved.

Further, the above-mentioned double fleece knitted fabric includes a dyed yarn which is a yarn made of polyester in a crystalline plastic state having both a crystalline portion and a non-crystalline portion and which is a yarn dyed with a disperse dye. Those having a structured structure are preferable. In this case, between the polyester molecules forming the non-crystalline part of the dyed yarn, a substance that inevitably enters the yarn when the yarn made of polyester is produced, a disperse dye, and a function as an antibacterial agent. It contains substances that can be used.

When producing a yarn made of polyester, impurities such as a substance polymerized at a degree of polymerization so low that the monomer as a raw material of polyester does not form a fiber body inevitably enter into the produced yarn. This impurity gets in between the molecules of the non-crystalline polyester in the yarn when the yarn-forming polyester is in the form of a crystalline plastic with both crystalline and non-crystalline moieties.

On the other hand, when dyeing a yarn made of polyester in a crystalline plastic state having both crystalline and non-crystalline parts, in general, swelling that widens the gap between the polyester molecules forming the non-crystalline part in this yarn is generated. Then, a method is adopted in which the disperse dye is allowed to enter the gap widened by this swelling. Here, in a thread made of polyester in a crystalline plastic state having both a crystalline part and a non-crystalline part, a substance that has entered between the polyester molecules forming the non-crystalline part moves to the surface of the thread over time. Then, it takes the form of a powder adhering to this surface. Therefore, when a thread made of polyester in a crystalline plastic state is dyed by the above method, the colored powder of the disperse dye is in a state of adhering to the surface over time.

Therefore, the above-mentioned double fleece knitted fabric can exert the antibacterial action by this substance by putting a substance capable of functioning as an antibacterial agent on the surface of the dyed yarn. Further, in the above-mentioned double fleece knitted fabric, the substance that has entered between the polyester molecules forming the non-crystalline part of the dyed yarn is attached to the surface of the dyed yarn in the form of a colored powder by the disperse dye. Therefore, this substance is visible.

Also provided is an invention of a method for producing a dyed yarn, which produces the dyed yarn. The method for producing this dyed yarn has a first procedure and a second procedure. In the first procedure, the yarn made of polyester is swollen. In the second procedure, the yarn that has been swollen through the first procedure is dyed with a dispersion system containing both an antibacterial agent and a disperse dye, and the yarn is processed into a dyed yarn.

Polyester is a substance in which it is difficult to allow an antibacterial agent to enter the inside by post-processing due to its fine structure and high crystallinity. For this reason, when a polyester yarn is to exert an antibacterial effect, generally, a method of attaching an antibacterial agent to the surface of the yarn via a binder or a dispersion system using polyester as a dispersion medium and an antibacterial agent as a dispersoid is used. A method of producing yarn as a raw material is adopted. Among these methods, the former method has a problem that the antibacterial agent is peeled off from the thread and the antibacterial action is weakened by use. Further, the latter method has a problem that a special dispersion system needs to be used as a raw material in the production of a yarn exhibiting an antibacterial action.

Here, according to the above-mentioned method for producing a dyed yarn, a polyester dyed yarn in which a yarn made of polyester is used as a material and both an antibacterial agent and a disperse dye are contained in the yarn is subjected to a special procedure. Can be obtained without addition. Then, by using this dyed yarn for the double fleece knitted fabric, the double fleece knitted fabric is colored with a disperse dye, and the double fleece knitted fabric exerts an antibacterial action by an antibacterial agent. Can be done. Here, since the antibacterial action of the double fleece knitted fabric is realized by the antibacterial agent that has entered the inside of the dyed yarn, it is possible to reduce the possibility that the antibacterial agent is peeled off from the yarn and the antibacterial action is weakened. Further, it is possible to eliminate the need to use a special dispersion system as a raw material in the production of yarn exhibiting an antibacterial action.

The double fleece knitted fabric of the present invention can shrink from the stretched state and return to the original state or approach the original state.

It is an enlarged view of the main part of the double fleece knitted fabric which concerns on one Embodiment of this invention. It is a schematic diagram which showed the inlay yarn of FIG. It is explanatory drawing which showed the 1st procedure in the method of producing the dyed yarn which concerns on one Embodiment of this invention. It is explanatory drawing which showed the 2nd procedure in the method of producing the dyed yarn which concerns on one Embodiment of this invention.

The double fleece knitted fabric 1 according to the embodiment of the present invention will be described below with reference to the drawings. The double fleece knitting fabric 1 is a weft knitting fabric, and can be manufactured by using a double fleece knitting machine known per se. As such a double fleece knitting machine, for example, Kanekichi Kogyo Co., Ltd. Manufacturing hanging machines can be mentioned. This hanging machine is a knitted fabric of circular knitting (of the knitted fabrics of weft knitting, the course that forms this knitted fabric is connected in a spiral line without folding back, so that the macroscopic shape becomes tubular. The ground) is manufactured. Therefore, the double fleece knitted fabric 1 of the present embodiment is a circular knitted fabric (not shown) that is macroscopically tubular.

As shown in FIG. 1, the double fleece knitted fabric 1 is formed by knitting a first structure 10 formed by knitting a tie-in thread 11 and a second structure 20 formed by knitting an inlay thread 21. It has a cross-knitted construction spliced together by a third tissue 30 comprising 31. In the double fleece knitted fabric 1 of the present embodiment, the first tissue 10 is arranged on the outside of the cylinder and the second structure 20 is arranged on the inside (not shown).

As shown in FIG. 1, the first tissue 10 and the second tissue 20 are knitted so as to exhibit a weft knitting structure having a back surface and a front surface, respectively. Here, the "back surface" refers to a surface of the knitted fabric in which all the stitches appearing on the surface are the back stitches. Further, the "face of the front" means a surface of the knitted fabric in which all the stitches appearing on the surface are the stitches of the front. Therefore, when the knitted fabric has a back surface, the surface of the knitted fabric opposite to the back surface is always the front surface, and vice versa.

Further, in the second structure 20, the front surface (the surface on the back side of the paper surface in FIG. 1) of the weft knitting structure is overlapped with the back surface (the surface on the front side of the paper surface in FIG. 1) of the first structure 10. It is said that it is in a state of being. In the present embodiment, the course 20A and the wale 20B in the second tissue 20 are superposed on the course 10A and the wale 10B in the first tissue 10, respectively.

The third structure 30 connects the second structure 20 and the first structure 10 with the knit-in thread 31 in a state where no other structure appears on the front surface of the first structure 10. The knit-in yarn 31 is an elastic yarn that exerts an elastic force against elongation, and is arranged along the course 10A in the weft knitting structure of the first structure 10 to extend the course 10A. It exerts an elastic force that resists extension in the direction (left-right direction in FIG. 1). In the present embodiment, the knit-in thread 31 is a natural rubber thread, and the natural rubber thread is made of chemically synthesized natural rubber even if it is made of natural rubber made of latex collected from Hevea brasiliensis. It may be a thing.

Further, the tie-in yarn 11 is knitted so as to exhibit the weft knitting structure of the first structure 10 in a state where the surface of the tie-in yarn 11 is covered with the coating film 11A. The coating film 11A is composed of a substance containing polytetrafluoroethylene. This substance has a contact angle larger than 90 [°] (generally about 100 [°] to 120 [°]) when it comes into contact with water in the air.

Here, the tie-in yarn 11 covered with the coating film 11A is a yarn having a mixing ratio of 100 [%] of cotton (that is, the mass ratio of cotton to the whole is 99 [%] or more) and is in the air. The size of the contact angle when it comes into contact with water has a value of about 40 [°] to 60 [°]. Therefore, the size of the contact angle of the substance constituting the coating film 11A when it comes into contact with water in the air is larger than the size of the contact angle when the tie-in thread 11 comes into contact with water in the air. It can be said that it is a substance.

As shown in FIG. 2, the inlay yarn 21 has a configuration in which a yarn having a mixing ratio of 100 [%] of polyester (that is, the mass ratio of polyester to the whole is 99 [%] or more) is dyed with a disperse dye 90B. It is a dyed yarn having. Here, the polyester is polyethylene terephthalate in the state of a crystalline plastic having both a crystalline portion 22A and a non-crystalline portion 22B (see Structural Formula 1 below).

Further, impurities 22C, a disperse dye 90B, and an antibacterial agent 90A are contained between the polyester molecules 22 forming the non-crystalline portion 22B in the inlay yarn 21. Here, the impurity 22C inevitably enters the yarn when producing a yarn made of polyester, for example, a substance obtained by polymerizing a monomer which is a raw material of polyester with a degree of polymerization so low that it does not form a fiber body. It is a substance. The disperse dye 90B is, for example, 1- (methylamino) -4- (2-hydroxyethylamino) anthraquinone (see Structural Formula 2 below), which makes the inlay yarn 21 look bluish to the human eye. Dye. Further, the antibacterial agent 90A can be an antibacterial agent for fiber processing, which is known by itself. Examples of such an antibacterial agent for fiber processing include Marcaside YP-DP (Marcaside is a registered trademark) manufactured by Osaka Kasei Co., Ltd.

Subsequently, an example of the method for manufacturing the inlay yarn 21 described above will be described. In an example of this method, first, a yarn 21A made of polyester in the form of a crystalline plastic having both a crystalline portion 22A and a non-crystalline portion 22B (see the solid line in FIG. 3) is produced. In the yarn 21A, impurities 22C such as a substance in which the monomer as a raw material of polyester is polymerized at a low degree of polymerization so as not to form a fiber body are inserted between the polyester molecules 22 forming the non-crystalline portion 22B. In the present embodiment, as the yarn 21A, a uniaxially drawn yarn in which the orientation of the polyester molecule 22 is substantially aligned with the longitudinal direction of the yarn 21A (the left-right direction in FIG. 3) is produced.

Then, the thread 21A is heated in an environment where water is present, so that the thread 21A is swollen. This procedure corresponds to the "first procedure" in the present invention. Here, in the swollen thread 21A, as shown by a virtual line in FIG. 3, the degree of variation in the orientation of the polyester molecule 22 becomes large, and further, the molecule of the polyester molecule 22 forming the non-crystalline portion 22B. The interval is widened. However, the molecular spacing of the polyester molecules 22 forming the crystal portion 22A hardly changes. When the thread 21A is heated and swelled, the carrier, which is a drug that facilitates the swelling of the thread 21A, may or may not be used.

Then, as shown in FIG. 4, the swollen thread 21A is put into the dispersion system 90 containing both the antibacterial agent 90A and the disperse dye 90B. Here, the dispersion system 90 may use a solution containing water and the antibacterial agent 90A as a dispersion medium, and the dispersion dye 90B may be dispersed as a dispersoid in the dispersion medium. Alternatively, the dispersion system 90 may be one in which water or an aqueous solution is used as a dispersion medium, and the antibacterial agent 90A and the dispersion dye 90B are dispersed as a dispersoid in the dispersion medium.

At this time, the antibacterial agent 90A and the disperse dye 90B contained in the dispersion system 90 hardly enter between the polyester molecules 22 forming the crystalline portion 22A in the yarn 21A, while the polyester molecules forming the non-crystalline portion 22B also hardly enter. By getting between the molecules 22, the thread 21A is dyed. As a result, the yarn 21A made of polyester can be dyed to produce a dyed yarn that can be used as the inlay yarn 21. That is, the above procedure corresponds to the "second procedure" in the present invention.

The double fleece knitted fabric 1 described above causes the knit-in yarn 31 of the third structure 30 to exert an elastic force against the extension of the course 10A in the direction of extension in the first structure 10. Therefore, in the double fleece knitted fabric 1, the resistance to the collapse of the first structure 10 due to stretching is supplemented by the knit-in thread 31 of the third structure 30, and the knit-in yarn 31 of the third structure 30 shrinks from the stretched state to return to the original state. Or you can get closer to the original state.

Further, the above-mentioned double fleece knitted fabric 1 is in a state in which only the front surface in the first structure 10 composed of the tie-in yarn 11 whose surface is covered with the coating film 11A appears on one surface thereof. To. Here, since the first structure 10 is a weft knitting structure having stitches having a fine uneven structure, air is contained inside the first structure 10 in the air. Further, in the first structure 10, the extension of the course 10A in the extending direction (left-right direction in FIG. 1) is suppressed by the knit-in thread 31 of the third structure 30, so that the stitches in the direction in which the course 10A extends are formed. It is kept tight. Further, the coating film 11A covers the surface of the tie-in yarn 11 constituting the first structure 10 to increase the contact angle when the front surface of the first structure 10 comes into contact with water in the air. The value should be larger than 90 [°]. Therefore, the double fleece knitted fabric 1 can easily generate super-water repellency on one side surface thereof, and thus can improve the water repellency of this one side surface.

Further, according to the double fleece knitted fabric 1 described above, the antibacterial agent 90A that has entered between the polyester molecules 22 forming the non-crystalline portion 22B in the inlay yarn 21 is in a state of being attached to the surface of the inlay yarn 21 over time. Therefore, the antibacterial action of the antibacterial agent 90A can be exhibited. Further, when a substance that has entered between the polyester molecules 22 forming the non-crystalline portion 22B in the inlay yarn 21 adheres to the surface of the inlay yarn 21 over time, this substance is colored by the disperse dye 90B. Since it takes the form of a powder, it can be visually recognized.

Further, according to the above-mentioned example of the method for producing the inlay yarn 21, a polyester dyed yarn in which both the antibacterial agent 90A and the disperse dye 90B are contained in the yarn 21A made of polyester as a material. (See inlay yarn 21 in FIG. 2) can be obtained without adding any special procedure. Then, by using this dyed yarn as the inlay yarn 21 of the double fleece knitted fabric 1, the double fleece knitted fabric 1 is colored with the dispersion dye 90B, and the antibacterial agent is applied to the double fleece knitted fabric 1. The antibacterial action of 90A can be exerted. Here, the antibacterial action of the double fleece knitted fabric 1 is realized by the antibacterial agent 90A that has entered the inside of the inlay yarn 21 and then moved to the surface thereof, so that the antibacterial agent 90A peels off from the inlay yarn 21 and has an antibacterial action. Can be less likely to weaken. Further, in the production of the inlay yarn 21 exhibiting an antibacterial action, it is possible to eliminate the need to use a special dispersion system using polyester as a dispersion medium and an antibacterial agent as a dispersoid as a raw material.

The present inventor conducted a water repellency test and an antibacterial property test to evaluate the performance of the above-mentioned double fleece knitted fabric 1.

In the above water repellency test, three test pieces, a second test piece, and a third test piece, each having a different degree of deterioration, are prepared, and JIS L 1092 is used for these test pieces. : The water repellency test (spray test) specified in 2009 was performed once. Here, the first test piece is obtained by cutting the double fleece knitted fabric 1 immediately after production into a square shape having a side of 200 [mm]. The second test piece was obtained by cutting a double fleece knitted fabric 1 which had been washed with water 5 times after production into a square shape having a side of 200 [mm]. The third test piece was obtained by cutting a double fleece knitted fabric 1 in a state of being dry-cleaned three times after production into a square shape having a side of 200 [mm]. Each of the first test piece, the second test piece, and the third test piece has a test piece holding frame in a state where the front side in the first tissue is the front side (the side on which water is sprayed). Was attached to.

Further, the washing with water performed on the double fleece knitted fabric 1 from which the second test piece is collected is performed according to the method specified by No. 103 in Appendix 1 of JIS L 0217-1995, and this method. As the drying method that can be selected in, the hanging drying was selected. Further, the dry cleaning treatment performed on the double fleece knitted fabric 1 from which the third test piece is collected is performed in accordance with the B method (petroleum-based method) specified in JIS L 1092: 2009. Screen drying was selected as the drying method that can be selected in the method.

In the above water repellency test, the first test piece was determined to be grade 4 (not wet on the surface but showing adhesion of small water droplets) in all three test pieces. In addition, the second test piece was determined to be grade 2 (showing wetness on half of the surface and showing a state in which small individual wetness penetrates the cloth) in all three test pieces. In addition, the third test piece was determined to be grade 3 (showing small individual water droplet-like wetness on the surface) in all three test pieces. However, in each of the above test pieces, water leakage was observed on the back surface (the surface on the side where the second tissue and the third tissue are located). From this, it can be said that the above-mentioned double fleece knitted fabric 1 has improved water repellency on the front surface in the first structure 10, and the effect remains even after washing.

In the antibacterial property test, the bacterial solution absorption method specified in JIS L 1902: 2015 was applied to the first sample and the second sample having different degrees of deterioration and the third sample as a control material. I went there. Here, the first sample is obtained by cutting the double fleece knitted fabric 1 immediately after production. The second sample was collected by cutting the double fleece knitted fabric 1 which had been washed 10 times after production. In addition, the third sample is a 100% cotton attached white cloth that has been subjected to a predetermined treatment, which is used when a control material cannot be obtained by the bacterial solution absorption method specified in JIS L 1902: 2015. ..

In addition, the washing performed on the double fleece knitted fabric 1 from which the second sample is collected is in accordance with the standard washing method according to the "Washing method for SEK mark textile products" of the Japan Textile Evaluation Technology Council. It was conducted. In addition, as the test inoculum solution used in the above-mentioned bacterial solution absorption method, a test bacterial suspension of Staphylococcus aureus to which a surfactant polyoxyethylene sorbitan monooleate (Tween 80) was added was used. did. Here, as the Staphylococcus aureus, the NBRC 12732 strain of coagulase-positive staphylococcus aureus (Staphylococcus aureus subsp. Auureus) was used.

In the above antibacterial test, in the third sample, the number of viable bacteria detected by washing out immediately after inoculation of the bacterial solution was 4.51 in common logarithm, and the maximum and minimum difference was 0.1. .. In the third sample, the number of viable bacteria detected by washing out after 18 hours of culturing after inoculation of the bacterial solution was 7.02 in common logarithm, and the maximum and minimum difference was 0. It was 1. From this, the growth value F in the third sample, which is the control material, is calculated to be 2.5.

On the other hand, in the first sample, the number of viable bacteria detected by washing out immediately after inoculation of the bacterial solution was 4.44 in common logarithm, and the maximum and minimum difference was 0.1. In the first sample, the number of viable bacteria detected by washing out after 18 hours of culture time after inoculation of the bacterial solution was 1.30 in common logarithm, and the maximum and minimum difference was 0. It was 0. From this, the antibacterial activity value A in the first sample is calculated to be 5.7. This is because ^105.7 (about 500,000) of live Staphylococcus aureus adhere to the first sample (that is, double fleece knitted fabric 1 immediately after production), and there is no growth of these Staphylococcus aureus. This means that the first sample has strong antibacterial properties such that the viable number of Staphylococcus aureus becomes one after 18 hours.

In the second sample, the number of viable bacteria detected by washing out immediately after inoculation of the bacterial solution was 4.47 in common logarithm, and the maximum and minimum difference was 0.1. In the second sample, the number of viable bacteria detected by washing out after 18 hours of culture time after inoculation of the bacterial solution was 3.27 in common logarithm, and the maximum and minimum differences were 1. It was 4. From this, the antibacterial activity value A in the second sample is calculated to be 3.7. This is because ^103.7 (about 5000) of live Staphylococcus aureus adhered to the second sample (that is, double fleece knitted fabric 1 that had been washed 10 times after production), and these Staphylococcus aureus were attached. It means that the second sample has a strong antibacterial property such that the viable number of Staphylococcus aureus becomes one after 18 hours when there is no growth of Staphylococcus aureus.

The present invention is not limited to the appearance and configuration described in the above-described embodiment, and various changes, additions, and deletions can be made without changing the gist of the present invention. For example, various forms such as the following can be implemented.

(1) The double fleece knitted fabric of the present invention does not have to be a circular knitted fabric that is macroscopically tubular, and a flat knitted fabric (of the weft knitted fabrics, this knitted fabric is used. It may be a knitted fabric in which the macroscopic shape becomes a strip by connecting the eggplant courses in steps while folding them back.

(2) In the double fleece knitted fabric of the present invention, the material of the tie-in yarn constituting the first structure can be appropriately changed, and the coating film covering the surface of the tie-in yarn can be appropriately omitted. Here, when the tie-in yarn is a yarn made of polyester and the coating film covering the surface of the tie-in yarn is omitted, the tie-in yarn has a non-crystalline portion similar to the inlay yarn constituting the second structure. It is possible to make a dyed yarn in which impurities, disperse dyes and antibacterial agents are mixed between the molecules of polyester.

(3) In the double fleece knitted fabric of the present invention, the inlay yarn constituting the second structure is limited to dyed yarn in which impurities, disperse dyes and antibacterial agents are mixed between the molecules of polyester forming the non-crystalline part. Instead, it can be changed to a thread made of a material that is appropriately set.

1 Double fleece knitted fabric 10 First structure 10A Course 10B Wale 11 Tie-in thread 11A Coating film 20 Second structure 20A Course 20B Wale 21 Inlay thread (dyed thread)
21A Thread 22 Polyester molecule 22A Crystal part 22B Non-crystal part 22C Impurity 30 Third structure 31 Knit-in thread 90 Dispersion system 90A Antibacterial agent 90B Dispersion dye

Claims (4)

A first structure composed of tie-in yarns woven so as to exhibit a weft knitting structure having a back surface and a front surface, and a first structure.
It is composed of an inlay yarn in a state of being woven so as to exhibit a weft knitting structure having a back surface and a front surface, and the front surface in the weft structure is overlapped with the back surface in the first structure. With the second organization
A third structure including a knit-in thread that connects the second structure and the first structure without any other structure appearing on the front surface of the first structure.
In a double fleece knitted fabric with
The knit-in yarn is an elastic yarn that is arranged along a course in the weft knitting structure of the first structure and exerts an elastic force that resists elongation in the direction in which the course extends.
Double fleece knitted fabric. The double fleece knitted fabric according to claim 1.
The tie-in yarn is knitted so as to exhibit the weft knitting structure of the first structure in a state where the surface of the tie-in yarn is covered with a coating film.
The coating film has a contact angle when it comes into contact with water in the air, a contact angle when the tie-in yarn comes into contact with water in the air, or 90 [°]. Consists of substances that grow larger than
Double fleece knitted fabric. The double fleece knitted fabric according to claim 1 or 2.
A yarn made of polyester in a crystalline plastic state having both crystalline and non-crystalline portions, and having a structure composed of a dyed yarn which is a yarn dyed with a disperse dye.
Between the polyester molecules forming the non-crystalline portion of the dyed yarn, a substance that inevitably enters the yarn when producing the yarn made of polyester, a disperse dye, and a function as an antibacterial agent. Possible substances and are intruded,
Double fleece knitted fabric. A method for producing a dyed yarn according to claim 3, wherein the dyed yarn is produced.
The first step of swelling the polyester thread,
The second procedure of dyeing the yarn swollen by the first procedure with a dispersion system containing both an antibacterial agent and a disperse dye, and processing the yarn into a dyed yarn.
have,
How to produce dyed yarn.

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