JP2017036529A - Fiber structure and manufacturing method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fiber structure having excellent color fastness under environment not only with deep dyeing effect, by also excess friction.SOLUTION: There is provided a fiber structure having L value (brightness) of 12.00 or less, having a resin coating containing a fluorine resin having a fluoroalkyl group with 6 or less carbon atoms on a surface of a resin coated layer, both of a dry test and a wet test with 100 times reciprocating rubbing of 4 grade or more when the color fastness is according to a friction test machine II described in JIS L0849 7.1b) and 7.2b) and both of the dry test and the wet test with 500 times reciprocating rubbing of 3 degree or more.SELECTED DRAWING: None

Description

  The present invention relates to a fiber structure excellent in a deep dyeing effect suitable for black formal clothing and school clothes.

  Conventionally, there has been a demand for a fiber structure having a deep dyeing effect for formal clothing, and in order to meet such a demand, a fiber structure dyed with a high dye concentration is provided. However, when the dye concentration is increased, the fastness to dyeing generally deteriorates, and the color may fade due to rubbing or attrition at the time of wearing or washing, and there is a problem in that a permanent dark dyeing effect cannot be obtained. .

  Therefore, a technique has been proposed in which a resin film having a low refractive index is provided on the surface of a colored fiber structure using a fluorine resin, a silicone resin, a polyurethane resin, or the like. With this technology, reflection of light is suppressed by the film and a deep color feeling is imparted, so even if the dyeing effect is sacrificed as a result of reducing the amount of dye used to suppress discoloration, If this technology is used, the decrease in the dark dyeing effect can be compensated.

  However, when a film is provided, the reflection of light cannot be sufficiently suppressed unless the film thickness is considerably increased. When the film thickness is increased, there is a problem that the film is likely to be scraped off due to rubbing and attrition when the fiber structure is used, and the color gradually fades.

  In view of this, a technique has been proposed in which fine unevenness is formed by subjecting the surface of the coating to low-temperature plasma treatment to obtain a deep dyeing effect by further suppressing light irregular reflection (see, for example, Patent Documents 1 and 2).

Japanese Patent No. 2566885 Japanese Patent No. 2703557

  According to the invention described in the above patent document, it is possible to provide a fiber structure having an excellent dark dyeing effect without increasing the thickness of the coating. In addition, a certain degree of robustness can be expected because there is no need to increase the thickness of the coating. Therefore, in the above invention, the degree of fastness is also specifically examined.

  The use of low temperature plasma treatment is certainly effective for improving the deep dyeing effect. However, in order to increase the effect of deep dyeing until it is suitable for formal clothing, etc., the surface of the coating must be etched deeply and greatly by low-temperature plasma treatment. However, when the etching hole is enlarged, the film is more easily deformed by friction. However, in the above-described invention, even if it is said to be fast, only dyeing fastness in home washing or dry cleaning is studied, and dyeing fastness that involves excessive friction is not studied at all. . However, in order to maintain the deep dyeing effect for a long period of time, it is necessary to have a certain resistance with respect to the dyeing fastness such as friction. Otherwise, it will be difficult to keep on using garments that are worn daily, such as school uniforms, for a long time with good aesthetics. In this regard, in the above invention, a certain effect is recognized with respect to the fastness to dyeing for home washing and the like, but the fastness to dyeing with excessive friction cannot be said to be resistant due to the structure of the film. Is the actual situation.

  Accordingly, an object of the present invention is to eliminate the disadvantages of the prior art, and to provide a fiber structure having excellent dyeing fastness even in an environment involving excessive friction as well as a deep dyeing effect. is there.

  As described above, all of the conventional methods have a problem in that the permanent deep dyeing effect cannot be exhibited as a fiber structure as a result of being unable to sufficiently reflect light by scraping the film by friction. Therefore, the present inventors have made various studies in order to design a coating that is difficult to cause fading even if it is slightly scraped by friction. The fundamental solution is no longer possible when the conditions of the low-temperature plasma treatment, the thickness of the coating, etc. are changed. I found that it does not lead to. In response to this, the design of the film was fundamentally reviewed and studied from the composition of the film. Surprisingly, by using a fluororesin having a fluoroalkyl group having 6 or less carbon atoms, a durable film Was found to be formed.

  The present invention has been completed as a result of further studies based on these findings.

  That is, the present invention is a fiber structure having an L value (brightness) of 12.00 or less, having a resin film containing a fluororesin having a fluoroalkyl group having 6 or less carbon atoms on the surface, and fastness to dyeing However, in the case of the friction tester type II described in JIS L0849 7.1b) and 7.2b), both the dry test and the wet test when reciprocating 100 times were grade 4 or more, and reciprocating 500 times. The gist of the fiber structure is characterized in that both the dry test and the wet test are grade 3 or higher.

  ADVANTAGE OF THE INVENTION According to this invention, the fiber structure which has the outstanding dyeing | fastness to dyeing | staining in the environment where an excessive friction is accompanied as well as a deep dyeing effect can be provided.

  Hereinafter, the present invention will be described in detail.

  The fiber structure of the present invention is composed of a structure body as a base material and a resin film. Examples of the structure main body include woven and knitted fabrics, nonwoven fabrics, and sewn products thereof. Of these, woven and knitted fabrics and nonwoven fabrics are preferable, and woven fabrics are particularly preferable.

  The fiber constituting the structure body is not particularly limited, and natural fibers such as cotton, hemp, wool, and silk, regenerated fibers such as rayon, cupra, polynosic, and lyocell, semi-regenerated fibers such as acetate, nylon, polyester, Examples thereof include chemically synthetic fibers such as acrylic. Of these, polyester fibers are preferred. The form of these fibers may be either long fibers or short fibers, and the cross-sectional shape of the fibers is not particularly limited. Further, the fiber may contain inorganic fine particles such as titanium dioxide, silicon dioxide, and pigment within a range not impairing the effects of the present invention.

  The fiber structure of the present invention has an excellent deep dyeing effect and can be suitably used for black formal clothing, school clothes, and the like. In the present invention, as will be described later, a resin film containing a specific fluorine-based resin is formed on the surface of the fiber structure, but the film itself does not emit color, but the structure body as a base material changes color. To emit. When the color is seen through the film, a deeper and deeper color than the color of the structure body can be visually recognized, and the visually recognizable color is reflected as a color having an L value (lightness) of 12.00 or less. Generally, the deeper and deeper the color, the smaller the L value. In the present invention, a color having an L value of 10.00 or less is particularly preferable.

  The method for imparting color to the structure body as a base material is not particularly limited, and the structure body may be dyed, or the structure body may be configured using fibers kneaded with a dye or pigment. Can be given. Among these, a dyeing method capable of changing the design according to the user's intention is preferable.

In the case of dyeing, first, the structure body should be scoured relaxed, dried and preset in advance. By doing so, the texture and quality of the structure are improved. The dyeing conditions are preferably a temperature of 120 to 140 ° C. and a time of 10 to 60 minutes. In the case of a structure made of polyester fibers, a disperse dye is used as the dye. The color is preferably dark and deep, such as black, amber, brown, etc., and particularly black. The dye concentration is preferably 2.0 to 10.0% omf. When the concentration is 2.0% omf or less, it is difficult to expect a desired deep dyeing effect even if a resin film is formed on the surface later. That is, when the film is formed, the dark dyeing effect can be supplemented. However, if the film is 2.0% omf or less, sufficient darkness is not imparted to the structure body, and even if the film is formed later, the L value is finally reached. It is difficult to make up to the range of 12.00 or less. On the other hand, if it exceeds 10.0% omf, the structure tends to inherently discolor, and even if a film is formed later, it tends to be difficult to suppress the discoloration.
Moreover, as an apparatus for dyeing (dyeing machine), a liquid flow dyeing machine, a wins dyeing machine, a paddle dyeing machine, a jigger dyeing machine, a rotary dyeing machine, and the like can be used. As the dyeing method, either a method by post-dying or a method by pre-dying may be used.

  In the present invention, after preparing the structure body, a resin film is formed on the surface of the structure. At this time, a film is formed using a fluororesin having a fluoroalkyl group having 6 or less carbon atoms. Examples of such resins include Meisei Chemical Industry Co., Ltd., Vasotex FS-370E, Asahi Glass Co., Ltd., Asahi Guard E-081, E500D, Nikka Chemical Co., Ltd., NK Guard S-05, S- 09, but is not limited to these.

  In the present invention, the apparent color developability of the fiber structure can be improved by forming a film using the above-mentioned fluororesin. This makes it possible to recognize deeper and deeper colors than the colors inherent in the structure body. Specifically, the L value can be lowered by about 0.1 to 3.0 as compared with the case without a film. This is because a film having a low refractive index can be formed by the fluororesin. The refractive index of the film is preferably 1.5 or less from the viewpoint of the deep dyeing effect.

  In addition, the film has a resistance enough to maintain a sufficient color fastness even when subjected to excessive friction. Thereby, even if the structure of the present invention is applied to clothes worn daily such as school uniforms, fading due to the film hardly occurs and the deep dyeing effect can be maintained for a long period. The reason why a resin film having excellent durability can be formed by using a fluororesin having a specific composition is not clear, but the fluororesin used in the present invention and a fluororesin used in a conventionally known deep dyeing process By comparison, the fluoroalkyl group contained in the resin is different in that the former has 6 carbon atoms or less and the latter has 8 carbon atoms. The length of this fluoroalkyl group has some influence on the interaction with the fiber molecule, and the difference is considered to be reflected in the film resistance. In addition, the length of the fluoroalkyl group has some influence on the refractive index of the film. As a result, those having 6 or less carbon atoms have an effect on the refractive index even if the film is damaged by friction compared to those having 8 carbon atoms. A possible reason is that the impact is reduced.

  The resin film in the present invention is most preferably formed only from a fluorine-based resin having a fluoroalkyl group having 6 or less carbon atoms, but other components are included as long as the effects of the present invention are not impaired. Also good. Examples of other components include fluorine resins having a C8 fluoroalkyl group, silicone resins, polyurethane resins, and acrylate resins. In this case, examples of the silicone-based resin include resins such as polydimethylsilane, polymethylhydrodienesiloxane, and polydimethylsiloxane. Commercially available products include Kitahiro Chemical Co., Ltd., Light Silicone P-290E, Shin-Etsu Chemical ( Co., Ltd., Boron MR, Kyoeisha Yushi Co., Ltd., Lighttex 900, DIC Corporation, Deck Silicon Conk S, etc.

  In general, the content of other components is preferably 10% by mass or less with respect to 100% by mass of the film. If it exceeds 10% by mass, the film is not preferable because the film is hard and slimy, and the resistance is lowered.

  In addition, the resin film may contain various catalysts, crosslinking agents, surfactants, antistatic agents, antibacterial agents, antifouling agents, deodorants, flame retardants, and the like. The use of a crosslinking agent is particularly effective for improving the resistance of the film. Examples of such a crosslinking agent include isocyanate compounds, melamine compounds, urea compounds, epoxy compounds, carbodiimide compounds, oxazoline compounds, and the like.

  The adhesion amount of the resin film is preferably 0.5 to 10.0% by mass, more preferably 3.0 to 8.0% by mass with respect to 100% by mass of the finally obtained fiber structure. It is. When the adhesion amount is less than 0.5% by mass, it is difficult to obtain a sufficient dark dyeing effect. On the other hand, if it exceeds 10.0% by mass, the film thickness increases, and the fastness due to friction, the whitening phenomenon, the resin falling off due to washing, etc. easily occur.

  In order to form the resin film, as an example, first, a structure body as a base material is prepared. The fiber structure is given a color with a predetermined darkness.

  Next, a treatment liquid containing a fluororesin having a fluoroalkyl group having 6 or less carbon atoms and, if necessary, other components, and various additives such as a catalyst and a crosslinking agent is prepared. And a process liquid is provided to a structure main body. Examples of the application method include a padding method and a coating method, and the padding method is particularly preferable.

  The padding method generally refers to a process in which impregnation, drawing and drying are performed in this order. Adopting the padding method is advantageous because the resin can be applied not only to the surface of the structure but also to the internal threads and fibers, and as a result, a deep and elegant texture is added. In the padding method, the viscosity of the treatment liquid is preferably adjusted in advance from the viewpoint of smoothly proceeding the process. Usually, adjusting the viscosity of the treatment liquid to a low one is advantageous because the liquid can efficiently penetrate into the gaps between the yarns or fibers through impregnation and drawing.

  The solid content concentration of the treatment liquid may be appropriately determined in consideration of the target adhesion amount of the film, but is usually about 5.0 to 25.0%.

  In the case of the padding method, after the treatment liquid is prepared, the structure body as a base material is impregnated in the treatment liquid, and excess liquid is squeezed with a mangle. The squeezing rate in this case may be appropriately determined in consideration of the amount of coating, but is usually preferably about 40.0 to 80.0%.

  After squeezing the liquid, it is dried. Drying conditions are preferably a temperature of 100 to 140 ° C. and a time of 30 to 180 seconds. When the drying temperature is less than 100 ° C., the reaction rate between the resins or between the resin and the additive becomes slow, so that a dark color effect is hardly exhibited and a film having excellent durability is hardly formed. On the other hand, when the temperature exceeds 140 ° C., the thickness of the film is difficult to be uniform, and as a result, the dark color effect is uneven and the resin is likely to fall off later. After drying, heat treatment may be performed in the range of 150 to 190 ° C. as necessary.

  As described above, the fiber structure of the present invention is capable of maintaining excellent dyeing fastness even in an environment involving excessive friction, as well as a deep dyeing effect. Specifically, the dyeing fastness evaluated by the friction tester type II (Gakushin type) satisfies a predetermined range. That is, in the JIS L0849 7.1 dry test, “Friction tester type II” described in 7.1b) described above, the fastness after 100 times reciprocating friction satisfies grade 4 or more and 500 reciprocations. Fastness when rubbing satisfies each grade 3 or higher. In addition, in the JIS L0849 7.2 wet test, the fastness after 100 reciprocating frictions satisfies the grade 4 or more and 500 Fastness when reciprocating rubs satisfies each grade 3 or higher. Such fastness can be achieved by forming a film made of a fluororesin having a specific composition on the surface of the structure body to which color is imparted.

  The fiber structure of the present invention is excellent in the deep dyeing effect and its fastness as described above. However, in order to further enhance the deep dyeing effect, the film may be etched by low-temperature plasma treatment. When the film is etched, numerous indentations are formed on the surface of the film. Because of this concave hole, irregular reflection of light is further suppressed, so that the deep dyeing effect is further enhanced. Specifically, the L value can be lowered by about 0.1 to 3.0 compared to the case without etching. In addition, when the concave hole is provided by etching, the film is easily scraped by friction. However, in the present invention, the influence on the fastness is small even if the film is slightly scraped. The reason for this is not clear, but as described above, it is considered that the length of the fluoroalkyl group contained in the film constituting resin is involved in some form.

  From the above, the low temperature plasma treatment is effective in improving the deep dyeing effect. Here, low-temperature plasma refers to a discharge state obtained by applying electrical energy to a gas, and is a decompression that contains negatively charged electrons, positively charged ions, and electrically neutral radicals. It means a state in a normal temperature range by glow discharge, atmospheric pressure glow discharge, corona discharge or the like.

  In the low-temperature plasma treatment, normally, gas molecules are excited by applying high-frequency energy to a non-polymerizable gas in a reduced pressure state to generate a plasma state at a low temperature. Then, the fiber structure is allowed to pass through the low-temperature plasma atmosphere for a certain period of time, thereby giving an etching action to the resin film on the surface of the fiber structure, thereby forming a concave hole.

  Non-polymerizable gases include oxygen, nitrogen, hydrogen, helium, argon, carbon dioxide gas and the like. Among these, oxygen is preferable from the viewpoint of giving a sufficient etching action to the surface of the film and efficiently forming the concave holes.

The frequency of the high frequency energy is not particularly limited as long as it can generate low temperature plasma, and can be used in the range of 1 to 3000 MHz, for example. In actual use, it is common to use any of 13.56 MHz, 27.12 MHz, 40.68 MHz, 915 MHz, and 2450 MHz according to regulations such as the Radio Law.
The power of the high frequency energy (high frequency power) is preferably 0.1 to 15.0 kW, more preferably 0.3 to 10.0 kW, from the viewpoint of improving the kinetic energy of the generated plasma.

  From the viewpoint of maintaining a stable low-temperature plasma state, the degree of vacuum (depressurized state) during the low-temperature plasma treatment is preferably 13 to 2670 Pa, and more preferably 40 to 1330 Pa.

  Furthermore, the time for the low temperature plasma treatment is preferably 1 to 30 minutes and more preferably 5 to 10 minutes from the viewpoint of efficiently etching the coating surface.

  Examples of the conditions for the low temperature plasma treatment include the above, and in actual processing, it is preferable to pass the fiber structure close to the electrode plate in a low temperature plasma atmosphere. The distance between the fiber structure and the electrode plate is preferably 10 mm or less, and more preferably 5 mm or less. As the distance between the fiber structure and the electrode plate is shorter, the etching action becomes stronger, and therefore it becomes easier to form a concave hole on the coating surface. And in connection with it, since the time of a low temperature plasma processing can also be set short, it becomes a preferable thing also in terms of production efficiency. On the other hand, when the distance exceeds 10 mm, the etching action tends to be reduced.

As described above, the etching by the low temperature plasma treatment is effective for improving the deep dyeing effect, but the concave hole formed by the etching does not necessarily need to be formed in the entire film, and is formed only in a part. Also good. Further, the size and distribution of the concave holes are not particularly limited. However, if a plurality of concave holes having different sizes are distributed, the internal reflection can be increased while reducing the surface reflection of light. Improvement of the effect can be expected more Specifically, it is preferable that the concave holes of 0.05 μm ² or less and the concave holes of 0.1 to 0.5 μm ² are mixed and distributed. In order to form a plurality of concave holes having different sizes, for example, a film may be formed using a plurality of types of resins. This is because the etching rate changes according to the resin composition.

  The occupied area of the concave holes is preferably 50% or less, more preferably 5 to 40% with respect to the entire surface of the film (100%). When the area of the concave hole exceeds 50%, not only a deep dark color effect cannot be expected, but also the dyeing fastness may be lowered.

Further, the number of the concave holes depends on the occupied area of the concave holes, the size of the concave holes, and the like, but is usually preferably 10 or more, more preferably 10 to 50, and further preferably 20 to 30 per 1 μm ^2. It is a piece. If the number of concave holes is less than 10 per 1 μm ² , it is difficult to improve the dark dyeing effect. On the other hand, if the number of concave holes increases excessively, it becomes difficult to form deep and large concave holes. It becomes difficult to improve.

  After the low temperature plasma treatment, the fiber structure may be incidentally processed as necessary. Examples of incidental processing include flexible processing, hard processing, water repellent processing, antistatic processing, antibacterial processing, antifouling processing, deodorization processing, and flame retardant processing.

  The fiber structure of the present invention is rich in deep color and greatly improved in terms of texture and the like as compared with conventionally known deep-dyed fiber structures. For this reason, it is suitable for uses such as black formal clothes and school clothes, and can be tailored to a good appearance.

  EXAMPLES Hereinafter, although this invention is demonstrated concretely based on an Example, this invention is not limited to these. The physical properties of the obtained fiber structure were measured as follows. The results are shown in Table 1.

1. L value The reflectance was measured using a spectrophotometer (manufactured by Sakata Inx Engineering Co., Ltd., “CE-7000E”), and the L value was determined from the color difference formula of CIE Lab. By comparing the L value of the structure at each stage of processing, the degree of the deep dyeing effect can be evaluated.

2. Dyeing fastness It measured based on JIS L0849 friction tester type II (Gakushoku type). That is, for the drying test and the wet test, the dyeing fastness when the reciprocating friction was performed 100 times and 500 times, respectively, was graded. For the classification, a gray scale for contamination was used.

Example 1
A polyester false twist yarn 157dtex36f was used as the warp and weft, and a flat double-woven fabric with a warp density of 125 yarns / inch and a weft density of 94 yarns / inch was woven. After weaving, the fabric was scoured relaxed, dried and preset. Then, a bath containing 5.0% omf of a disperse dye (“Dianix Black HG-FS (200%)” manufactured by Dystar Japan Co., Ltd.) is prepared, and the bath ratio is 1:20 at 135 ° C. for 30 minutes. The fabric was dyed. Thereafter, a bath containing 2 g / L of hydrosulfite, 2 g / L of sodium hydroxide and 1 g / L of a surfactant was prepared, and it was reduced and washed at a bath ratio of 1:20 at 80 ° C. for 20 minutes. After the reduction cleaning, it was dried at 130 ° C. for 2 minutes with a pin tenter. The L value of the fabric at this time was 12.50.

  Next, a treatment liquid for resin film formation having the composition shown in the following <Prescription 1> was prepared. The solid content concentration of this treatment liquid was 17.0%.

<Prescription 1>
60 parts by mass of fluororesin (“Vaso-Tex FS-370E” manufactured by Meisei Chemical Co., Ltd., solid content concentration 17.0%)
5 parts by mass of silicone resin (“Light Silicone P-290E” manufactured by Kitahiro Chemical Co., Ltd., solid content concentration 55.0%)
3 parts by mass of a crosslinking agent (manufactured by DIC Corporation, melamine compound “Beccamin M-3”)
5 parts by mass of catalyst (“F-12E” manufactured by Kitahiro Chemical Co., Ltd.)
1 part by mass of catalyst (“Catalyst ACX” manufactured by DIC Corporation)
2 parts by weight of surfactant (“Texport SN10” manufactured by Nikka Chemical Co., Ltd.)

  The above-mentioned treatment liquid was impregnated with a colored fabric, and excess liquid was squeezed with a mangle at a squeezing rate of 60.0%. Thereafter, the fabric was dried under the conditions of 120 ° C. and 120 seconds, and further heat-treated under the conditions of 160 ° C. and 60 seconds. The L value of the fabric at this time was 10.33.

  And the obtained textile fabric was low-temperature plasma-treated. The conditions of the low temperature plasma treatment are as follows: non-polymerizable gas: oxygen, frequency of high frequency energy: 13.56 MHz, high frequency power: 0.4 kW, vacuum degree: 133 Pa, treatment time of 10 minutes, distance between fabric and electrode plate: 5 mm there were. The L value of the fabric after the low temperature plasma treatment was 7.56.

(Example 2)
The treatment liquid for resin film formation (solid content concentration: 23.0%) having the composition shown in the following <Prescription 2> was used in place of the treatment liquid of <Prescription 1>, and the drawing ratio during padding was 60.0%. A woven fabric was obtained in the same manner as in Example 1 except that the content was changed to 70.0%.

<Prescription 2>
60 parts by mass of fluororesin (“Vaso-Tex FS-370E” manufactured by Meisei Chemical Co., Ltd., solid content concentration 17.0%)
10 parts by mass of silicone resin (“Light Silicone P-290E” manufactured by Kitahiro Chemical Co., Ltd., solid content concentration 55.0%)
3 parts by mass of a crosslinking agent (manufactured by DIC Corporation, melamine compound “Beccamin M-3”)
10 parts by mass of catalyst (“F-12E” manufactured by Kitahiro Chemical Co., Ltd.)
1 part by mass of catalyst (“Catalyst ACX” manufactured by DIC Corporation)
2 parts by weight of surfactant (“Texport SN10” manufactured by Nikka Chemical Co., Ltd.)

(Comparative Example 1)
The treatment liquid for resin film formation (solid content concentration: 37.0%) having the composition shown in the following <Prescription 3> was used in place of the treatment liquid of <Prescription 1>, and the squeezing ratio during padding was 60.0%. A woven fabric was obtained in the same manner as in Example 1 except that the content was changed to 80.0%.

<Prescription 3>
60 parts by mass of silicone resin (“Light Silicone P-290E” manufactured by Kitahiro Chemical Co., Ltd., solid content concentration 55.0%)
3 parts by mass of a crosslinking agent (manufactured by DIC Corporation, melamine compound “Beccamin M-3”)
2 parts by mass of catalyst (“F-12E” manufactured by Kitahiro Chemical Co., Ltd.)
1 part by mass of catalyst (“Catalyst ACX” manufactured by DIC Corporation)
2 parts by weight of surfactant (“Texport SN10” manufactured by Nikka Chemical Co., Ltd.)

(Comparative Example 2)
The same procedure as in Example 1 was carried out except that a resin film forming treatment liquid (solid content concentration: 17.0%) having the composition shown in the following <Prescription 4> was used instead of the treatment liquid of <Prescription 1>. Got.

<Prescription 4>
51 parts by mass of fluororesin (manufactured by Nikka Chemical Co., Ltd., fluororesin “NK guard NDN-7E” containing a fluoroalkyl group having 8 carbon atoms, solid content concentration 20.0%)
10 parts by mass of silicone resin (“Light Silicone P-290E” manufactured by Kitahiro Chemical Co., Ltd., solid content concentration 55.0%)
3 parts by mass of a crosslinking agent (manufactured by DIC Corporation, melamine compound “Beccamin M-3”)
10 parts by mass of catalyst (“F-12E” manufactured by Kitahiro Chemical Co., Ltd.)
1 part by mass of catalyst (“Catalyst ACX” manufactured by DIC Corporation)
2 parts by weight of surfactant (“Texport SN10” manufactured by Nikka Chemical Co., Ltd.)

The woven fabrics according to the examples had excellent dyeing fastness even in an environment with excessive friction, as well as a deep dyeing effect. On the other hand, all of the comparative examples were obtained by performing a conventionally known dark dyeing process, and the deep dyeing effect was satisfied for the time being. However, since a fluorine-based resin having a fluoroalkyl group having 6 or less carbon atoms was not used during film formation, the desired dyeing fastness could not be obtained.

Claims (2)

  6. A fiber structure having an L value (lightness) of 12.00 or less, having a resin film containing a fluororesin having a fluoroalkyl group having 6 or less carbon atoms on the surface, and having a dyeing fastness of JIS L0849. In the case of the friction tester type II described in 1b) and 7.2b), both the dry test and the wet test when the reciprocating friction is 100 times are grade 4 or higher, and the dry test and the wetness when the reciprocating friction is 500 times. A fiber structure characterized in that both tests are grade 3 or higher. 2. A dyeing treatment solution containing a fluororesin having a fluoroalkyl group having 6 or less carbon atoms is applied to the surface of the fiber structure, and after drying, it is subjected to low-temperature plasma treatment. Manufacturing method of fiber structure.