JP6545473B2 - Bleeding prevention processing cloth - Google Patents

Description

  The present invention relates to an anti-bleeding treated fabric. In particular, the present invention relates to a fabric in which the bleeding of oil-based ink is suppressed.

  Children's, school children's or student's belongings or clothes (for example, gym clothes or swimwear) are used with a name tag or a number. The nameplate or the number of such a nameplate is filled in with its own name or affiliation, but when the name is written with an oil-based pen, the oil-based ink smears on the surface, resulting in a problem that the outline is blurred. One of the reasons why the oil-based ink bleeds into the fabric (name tag or number) is capillary phenomenon in which the oil-based ink bleeds into the fibers. In order to avoid such a problem, for example, a method of squeezing the eyes of the fabric with household glue or writing letters quickly may be adopted. However, these methods rely on personal cans and tips, not realistic methods.

  Moreover, as a method of suppressing the bleeding of the oil-based ink in a cloth, the method of processing a cloth variously until now is proposed. For example, it is known that a water repellent is fixed to the surface of a fabric, or a synthetic resin is impregnated on the surface of the fabric to reduce the capillary phenomenon of the fabric (for example, Patent Document 1 and Patent Document 2) Or see Patent Document 3).

Japanese Patent Laid-Open No. 2000-029393 Utility model registration 3033898 gazette Japanese Utility Model Publication No. 2-106492

  However, even if the techniques described in Patent Documents 1 to 3 are adopted, since the water repellent agent or the resin inhibits the permeability of the oil-based ink, only thin characters can be entered. Alternatively, if washing is repeated, the character density decreases and the characters disappear.

  The object of the present invention is to prevent bleeding of the oil-based ink, and it is possible to write letters clearly and densely with an oil-based pen (that is, the writing performance is good), and the density reduction of the characters by repeated washing is further suppressed ( That is, it is providing the bleeding prevention processed fabric which is excellent in washing | cleaning durability.

As a result of intensive studies to solve the above-mentioned problems, the present inventors conducted a KES method (Kawabata Evaluation System Method) on the surface of the coated layer with the coated layer comprising a resin and fine particles. Since the average coefficient of friction measured in accordance with 2.) is within a specific range, it is found that the ink can be suitably used for numbered or nameplates because it is excellent in anti-smearing property for oil-based ink, writing performance and washing durability. The
That is, the present invention provides the following (1) to (9) as the gist.

(1) A blur-prevented processed fabric comprising a fabric and a coating layer, wherein the coating layer contains a resin and fine particles, and the average friction measured according to the KES method on the surface of the coating layer The bleeding prevention processed fabric whose coefficient is 0.15 to 0.30.

(2) The anti-bleeding treated fabric of (1), wherein the fine particles are at least one selected from the group consisting of titanium oxide fine particles, silicon oxide fine particles, zinc oxide fine particles, and aluminum oxide fine particles.

(3) The anti-bleeding treatment of (1) or (2), wherein the resin is at least one resin selected from the group consisting of acrylic resins, polyurethane resins, vinyl acetate resins, and polyester resins. Fabric.

(4) The bleeding prevention processed fabric according to any one of (1) to (3), wherein the average particle diameter of the fine particles is 0.1 to 5 μm.

(5) The bleeding of any one of (1) to (4), wherein the mass ratio of the resin to the fine particles in the coating layer is (fine particles) / (resin) = 0.25 to 2.0. Processed fabric.

(6) A portion to which the ink of the black oil-based pen has diffused on the surface of the coating layer when 10 seconds have elapsed since the tip of the black oil-based pen having a diameter of 2.0 mm was pressed against the surface of the coating layer The bleeding prevention processed fabric according to any one of (1) to (5), which has an area of 12.5 mm ² or less.

(7) Using a black oil-based pen with a tip diameter of 7.0 mm, write a character with a length of 7.0 mm and a length of 20.0 mm on the surface of the coated layer. The bleeding prevention processed fabric of (1)-(6) whose writing density L ^* of the said one character measured according to the display method of JIS Z 8730: 2009 color at the time is 30.0 or less.

(8) On the surface of the coated layer, using a black oil-based pen with a tip diameter of 7.0 mm, a vertical length of 7.0 mm and a horizontal length of 20.0 mm were written The bleeding prevention processed fabric according to (1) to (7), wherein the color difference ΔE of the one character before and after home washing is 2.0 or less when the home washing is performed 30 times according to the JIS L 0217 103 method.

(9) The anti-bleeding treated fabric according to any one of (1) to (8), which is for a bib, a name, a name tag tag, an event curtain, or a signboard.

  The anti-bleeding treated fabric of the present invention is provided with the coating layer containing the resin and the fine particles, so the ink of the oil-based pen does not come in contact with the fiber surface constituting the fabric. Furthermore, fine irregularities are formed and maintained on the surface of the coating layer by the fine particles contained in the coating layer. Therefore, the bleeding of the oil-based ink can be significantly prevented due to the contact area of the surface based on the unevenness (the contact area with the oil-based pen point) or the frictional resistance.

  In addition, it becomes possible to write letters clearly and densely with an oil-based pen, and it is possible to further suppress the decrease in the letter density due to repeated washing. That is, the bleeding prevention processed fabric of the present invention is excellent in the anti-bleeding property and is excellent in the writing property and the washing durability.

Hereinafter, the present invention will be described in detail.
The anti-bleeding processed fabric of the present invention comprises a fabric and a coating layer formed on the fabric. The coated layer contains a resin and fine particles. The coating layer may be provided only on one side of the fabric, or may be provided on both sides of the fabric. The resin is particularly a resin having film forming ability.

  The fibers constituting the fabric are, for example, polyester fibers (fibers composed of polyethylene terephthalate, polybutylene terephthalate or polylactic acid), polyamide fibers (fibers composed of nylon 6 or nylon 66), acrylic fibers, polyurethane fibers Fibers, natural fibers (fibers made of cotton, animal hair, silk, hemp, bamboo, etc.), regenerated fibers (viscose rayon, copper ammonia rayon, or solvent-spun cellulose fibers), semi-synthetic fibers (acetate, etc.) be able to. When the fabric contains a plurality of types of fibers, techniques such as twisting, blending, mixing, cross-weaving, or knitting fibers can be employed.

  The form of the fabric is not particularly limited, and may be a woven fabric, a knitted fabric or a non-woven fabric. Furthermore, the woven or knitted structure of the fabric is not particularly limited.

  The resin having film forming ability plays a role of fixing the fine particles on the fabric and a role of a binder, and also prevents the ink of the oil-based pen from contacting the fibers constituting the fabric.

  The above resin is preferably one or more resins selected from the group consisting of polyester resins, acrylic resins, vinyl acetate resins, and polyurethane resins. In particular, in order to be excellent in versatility and washing durability, an acrylic resin is preferable.

  The coating layer may contain a crosslinking agent (for example, an isocyanate compound, a carbodiimide compound, a silane coupling agent, or a glyoxal resin) for the purpose of improving the washing durability.

  The coating layer may contain an organic compound such as paraffin wax for the purpose of improving the anti-spreading property and the writing property.

  A fluorescent whitening agent (for example, a stilbene compound, a benzoimidazole compound, or a benzoxazole compound) for the purpose of enhancing the whiteness when the anti-blurring fabric of the present invention is applied to a number or a tag in the coated layer. Compounds) may be contained. In addition, the coating layer contains an ultraviolet light absorber or an antioxidant (for example, a hindered amine compound, a hindered phenol compound, a benzotriazole compound, or a benzophenone compound) in order to enhance light resistance. May be

  The fine particles are contained in order to form and hold the necessary fine irregularities on the surface of the coating layer and to improve any of the anti-bleeding property, the writing property and the washing durability. Specifically, when the coating layer contains fine particles, the value of the average coefficient of friction (MIU) of the surface of the coating layer can be controlled within the range of the characteristics.

  Specifically, the bleeding prevention-processed fabric of the present invention has an average coefficient of friction (MIU) value of 0.15 to 0.30 measured according to the KES method (Kawabata evaluation system method) on the surface of the coated layer, 0 It is preferable that it is .16-0.20.

  The average coefficient of friction (MIU) measured according to the KES method is a value measured by a tester (for example, manufactured by Kato Tech Co., Ltd., trade name "KES-SE") that quantifies the sensation of human fingers. It is an indicator of slipperiness (or slipperiness) felt when a human rubs on the surface of an object. That is, the average coefficient of friction (MIU) represents the smoothness of the surface, and the larger the value, the poorer the smoothness of the surface, indicating that there is sufficient unevenness. When the value of the average coefficient of friction (MIU) is 0.15 to 0.30, it indicates that the unevenness having the contact area necessary for the anti-bleeding property and the writability to the oil-based ink is formed. The value of the average coefficient of friction (MIU) of the present invention is the average particle diameter of the fine particles, the mass ratio of the fine particles to the resin, the kind of resin, the kind of fine particles, the thickness of the coated layer, the texture of the fabric, or the constituent fibers of the fabric It can control to the range of 0.15-0.30 by adjusting etc. to a specific range. The method of measuring the average coefficient of friction (MIU) will be described later in the examples.

  The blur preventing processed fabric of the present invention has an average deviation (MMD) of the average coefficient of friction (MIU) measured according to the KES method on the surface of the coated layer, from the viewpoint that the unevenness necessary for preventing bleeding and writing is formed. The value of is preferably 0.015 to 0.030. Similarly, it is preferable that the value of the average surface roughness (SMD) measured according to the KES method is 2.0 to 4.0 μm. MMD and SMD serve as indices of surface smoothness similarly to MIU, and the measurement method will be described later in Examples.

  The fine particles are preferably at least one selected from the group consisting of titanium oxide fine particles, silicon oxide fine particles, zinc oxide fine particles, and aluminum oxide fine particles. Among them, fine particles are more preferably titanium oxide fine particles because they are excellent in versatility and handleability.

  The average particle diameter of the fine particles is preferably 0.01 to 5 μm, more preferably 0.02 to 3 μm, and still more preferably 0.06 to 3 μm. When the average particle size of the fine particles is in the above range, the unevenness necessary for writing with the oil-based pen can be sufficiently formed and maintained, and the above-mentioned value of the average coefficient of friction (MIU) can be made into a specific range It becomes easy, and it is excellent by the blur prevention property and the writing property. Furthermore, the touch on the surface of the processed fabric is good and the texture is excellent, and the strength of the coating layer is strong and the fine particles are difficult to peel off, so the washing durability is excellent.

  The mass ratio of the resin to the fine particles in the coating layer is preferably (fine particles) / (resin) = 0.25 to 2.0, and more preferably 0.5 to 1.5. Here, when the mass ratio is in the above range, the unevenness necessary for writing with an oil-based pen can be sufficiently formed and maintained, and the value of the above-mentioned average coefficient of friction (MIU) can be made more in a specific range It becomes easy and is excellent in writing. Furthermore, since the amount of the resin as the binder is sufficient, the strength of the coated layer becomes strong, and the resin does not fall off by abrasion or washing, so the washing durability is excellent.

  The mass of the coating layer (the sum of the mass of the resin and the mass of the fine particles) is preferably in the range of 0.01 to 10%, preferably 0.05 to 3%, with respect to the total mass of the fabric. More preferable. When the mass of the coating layer is in the above range, the oil ink is excellent in the anti-bleeding property, the writing property, the texture, and the cost performance.

It is preferable that the thickness of the coating layer formed as mentioned above is 0.5-50 micrometers. It becomes easier to make the value of said average friction coefficient (MIU) into a specific range as the thickness of a coating layer is said range, and it is excellent by bleeding prevention property and washing durability.
In addition, even if it forms the coating layer containing a well-known water repellent and microparticles | fine-particles, the effect of this invention can not be show | played. The reason is that the fine particles can not be sufficiently held by the water repellent agent, and the writing property and the washing durability become poor due to the fact that the writing surface exhibits water repellency.

Next, the manufacturing method of the bleeding prevention processed fabric of this invention is demonstrated.
First, a dispersion containing a resin and fine particles is prepared. As a method of preparing a dispersion, for example, a method of dissolving a resin in water or an organic solvent to prepare a resin liquid, and dispersing the fine particles in the resin liquid; mixing the resin, water or organic solvent, and the fine particles at one time Methods are included.

  In order to prevent aggregation of the fine particles or the resin, the dispersion preferably contains a dispersant (surfactant). Moreover, in order to make the viscosity of a dispersion liquid increase and to make it easy to apply, you may make a dispersion liquid contain a thickener.

  Next, the dispersion can be coated on one side or both sides of the fabric and then heat-treated to form a coated layer. Specifically, the fabric is immersed in the dispersion and squeezed with a mangle, and then the pad is subjected to heat treatment; pad-heat treatment method; the dispersion is sprayed onto the fabric and the heat treatment is performed; A known method such as printing-heat treatment method of printing on a heat treatment and heat treatment; coating of a thickened dispersion on a surface of a fabric and heat treatment of a heat treatment method may be appropriately selected. In particular, a method in which the dispersion is applied by a printing method, a reverse roll coating method, a knife coating method or the like and then heat treatment is preferable. At the time of heat treatment, for example, a tenter or the like may be used to form a spread and heat treatment.

  The heat treatment temperature may be, for example, 80 to 200 ° C. In addition, a known apparatus can be appropriately selected and used for the heat treatment. Examples of such an apparatus include a tenter heat treatment machine such as a spreader-like pin tenter or clip tenter, a net dryer such as a shrink surfer, a roller dryer, or a cylinder dryer.

  Such an anti-blurring fabric of the present invention is suitably used as a number, name or name tag tag attached to clothes or a bag, etc. and written with characters and the like with oil ink, or as an event curtain or a signboard.

  Hereinafter, the present invention will be specifically described according to examples. The invention is not limited to this example.

The measurement method or evaluation method in the embodiment of the present invention is as follows.
(1) Surface characteristics by KES method (MIU, MMD, SMD)
It measured using Kato Tech Co., Ltd. "KES-FB4." The thread through sample (size: 20 cm × 20 cm) was placed on a smooth metal surface and uniaxial tension of 19.6 cN / cm was applied. Next, a contact (frictional surface dimension: 5 mm × 5 mm) in which 10 pieces of 0.5 mm piano wire were arranged perpendicularly to the moving axis direction was crimped to the film surface of the sample with a load of 50 gf. The average friction coefficient (MIU) was determined by the following equation from the frictional resistance when the sample was moved horizontally 2 cm at a speed of 0.1 cm / sec. The value of MMD which is the mean deviation of the mean coefficient of friction (MIU) was measured simultaneously.
MIU = (1 / X) ∫ ₀ ^x μdx
Here, μ is the frictional force / the force for pressing the sample (50 gf).
Also, x is a position on the sample surface, and X is a moving distance (2 cm).
In addition, with regard to the average surface roughness (SMD), a contact for measuring the roughness (a single piano wire with a diameter of 0.5 mm and a contact area of 5 mm ² ) is brought into contact with the surface of the fabric with a load of 10 g. It moved by moving speed of sec and asked for.

(2) Bleeding prevention property The tip of a black oil-based pen ("My name" manufactured by Sakura Crepas Co., Ltd., the diameter of the tip of the pen: 2.0 mm) was pressed against the surface of the coating layer in the sample for 10 seconds. Then, the radius A (mm) of the major axis and the radius B (mm) of the minor axis of the elliptical part to which the ink of the black oil-based pen diffused were measured, and the area S (mm ² ) was calculated from the following formula. It evaluated by.
S = π × A × B
:: The area of the part where the ink was diffused was 12.5 mm ² or less.
B: The area of the part where the ink was diffused was more than 12.5 mm ² and not more than 19.5 mm ² .
X: The area of the portion where the ink was diffused exceeded 19.5 mm ² .
In addition, when the part which the ink diffused was a perfect circle shape, area S (mm < ² >) was calculated using the radius (mm).

(3) Washing durability On the surface of the coated layer, using a black oil-based pen (“My name” manufactured by Sakura Crepas Co., Ltd., the diameter of the tip of the pen: 7.0 mm), one character having a length of 20.0 mm Wrote. Subsequently, household washing was performed 30 times according to the JIS L 0217 103 method. Next, the color difference ΔE was determined by measuring the color density of characters before and after washing 30 times using a spectrophotometer (“CE-7000E” manufactured by Sakata Inx Engineering Co., Ltd.), and evaluation was made according to the following criteria.
○: ΔE was 2.0 or less.
Δ: ΔE was more than 2.0 and 4.0 or less.
X: ΔE exceeded 4.0.

(4) Writability A black oil-based pen ("My name" manufactured by Sakura Clepas, the diameter of the tip of the pen: 7.0 mm) is used on the surface of the coated layer to write a single character having a length of 20.0 mm. The The writing density L ^* (character density) of this one character was measured in accordance with the display method of JIS Z 8730: 2009, and evaluated according to the following criteria.
○: L ^* was 30.0 or less.
Δ: L ^* was more than 30.0 and not more than 35.0.
X: L ^* exceeded 35.0.

  In addition, in said (2)-(4), when the coating layer was not formed in the fabric, evaluation or measurement was performed on the fabric surface. Moreover, when the water repellent was provided to the fabric and the water repellent finish was given, evaluation or measurement was performed on the surface subjected to the water repellent finish.

Example 1
A polyester-cotton blended yarn (British cotton count: 45th) having a polyester fiber content of 65% by mass and a cotton fiber content of 35% by mass was prepared. This polyester cotton blended yarn was woven into a plain weave fabric (warp density 136 / inch, weft density 72 / inch) using an air jet loom (manufactured by Ishikawa Seisakusho Co., Ltd.). The fabric was then subjected to normal desizing, scouring and bleaching in this order. Thereafter, fluorescent whitening was performed using a fluorescent whitening agent in accordance with a normal continuous dyeing method to obtain fluorescent white processing.

Next, a dispersion A of the following formulation 1 was prepared. 150 g / m ² of the dispersion A was applied to the above-mentioned fluorescent white fabric using a rotary printing machine (manufactured by Toshin Kogyo Co., Ltd., trade name “ICHINOSE RSX”). Next, using a net dryer, the coated layer was formed by heat treatment under conditions of 130 ° C. × 2 minutes to form a coated layer, and the anti-bleed treated fabric of Example 1 was obtained.

<Prescription 1>
NK binder MX-HN 10 parts by mass (acrylic resin manufactured by Shin-Nakamura Chemical Co., Ltd., solid content concentration: 40% by mass)
Ice coat T-300 10 parts by mass (Titanium oxide dispersion manufactured by Daiwa Chemical Industries, Ltd., solid content concentration: 20% by mass, average particle diameter: 0.5 μm)
NK extender AK 70 parts by mass (Tapene-based emulsion made by Shin-Nakamura Chemical Co., Ltd.)
Water 10 parts by mass

Example 2
The same procedure as in Example 1 was carried out except that the dispersion A was changed to the dispersion B of the following formulation 2, to obtain a blur-prevented processed fabric of Example 2.
<Prescription 2>
Superflex E-4000 10 parts by mass (Polyurethane resin emulsion manufactured by Daiichi Kogyo Seiyaku Kogyo Co., Ltd., solid content concentration: 45% by mass)
ZW-143 7.5 parts by mass (Zinc oxide dispersion manufactured by Sumitomo Osaka Cement Co., Ltd., solid content concentration: 30% by mass, average particle diameter: 0.5 μm)
NK extender AK 70 parts by mass (Tapene-based emulsion made by Shin-Nakamura Chemical Co., Ltd.)
Water 12.5 parts by mass

Example 3
The same procedure as in Example 1 was carried out except that dispersion liquid A was changed to dispersion liquid C of the following formulation 3, to obtain a blur preventing processed cloth of example 3.
<Prescription 3>
Plascoat Z-221 20 parts by mass (Polyester resin manufactured by Tate Chemical Industry Co., Ltd., solid content: 20% by mass)
Snowtex MP-2040 5 parts by mass (colloidal silica (silicon oxide) manufactured by Nissan Chemical Industries, Ltd., solid content concentration 40% by mass, average particle diameter 0.2 μm)
NK extender AK 70 parts by mass (Tapene-based emulsion made by Shin-Nakamura Chemical Co., Ltd.)
5 parts by mass of water

Comparative Example 1
The fluorescent white woven fabric in Example 1 was used as the cloth of Comparative Example 1 without applying the coating solution A and drying it (that is, without forming the coating layer).

Comparative example 2
The fluorescent white woven fabric in Example 1 was immersed in a 5% by mass aqueous solution of a fluorine-based water repellent (made by Nikka Chemical Co., Ltd., trade name "NK Guard S-33, solid content concentration of fluororesin: 20% by mass) Then, it was impregnated with a 50% reduction rate using a mangle. Thereafter, it was dried by a net dryer under conditions of 130 ° C. × 2 minutes, and heat-treated at 170 ° C. × 1 minute by a tenter to obtain a fabric of Comparative Example 2.

Comparative example 3
A fabric of Comparative Example 3 was obtained in the same manner as in Example 1 except that the dispersion A was changed to the dispersion D of the following formulation 4.
<Prescription 4>
NK binder MX-HN 10 parts by mass (acrylic resin manufactured by Shin-Nakamura Chemical Co., Ltd., solid content concentration: 40% by mass)
NK extender AK 70 parts by mass (Tapene-based emulsion made by Shin-Nakamura Chemical Co., Ltd.)
Water 10 parts by mass

Comparative example 4
A fabric of Comparative Example 4 was obtained in the same manner as in Example 1 except that the dispersion A was changed to the dispersion E of the following formulation 5.
<Prescription 5>
NK binder MX-HN 10 parts by mass (acrylic resin manufactured by Shin-Nakamura Chemical Co., Ltd., solid content concentration: 40% by mass)
Ice coat T-300 2 parts by mass (Titanium oxide dispersion manufactured by Daiwa Chemical Industry Co., Ltd., solid content concentration: 20% by mass, particle size: 0.5 μm)
NK extender AK 70 parts by mass (Tapene-based emulsion made by Shin-Nakamura Chemical Co., Ltd.)
Water 10 parts by mass

Comparative example 5
A fabric of Comparative Example 5 was obtained by the same operation as in Example 1 except that the dispersion A was changed to the dispersion F of the following formulation 6.
<Prescription 6>
NK binder MX-HN 10 parts by mass (acrylic resin manufactured by Shin-Nakamura Chemical Co., Ltd., solid content concentration: 40% by mass)
Ice coat T-300 50 parts by mass (Titanium oxide dispersion manufactured by Daiwa Chemical Industry Co., Ltd., solid content concentration: 20% by mass, average particle diameter: 0.5 μm)
NK extender AK 70 parts by mass (Tapene-based emulsion made by Shin-Nakamura Chemical Co., Ltd.)
Water 10 parts by mass

Comparative example 6
A fabric of Comparative Example 6 was obtained in the same manner as Example 1, except that the dispersion A was changed to the dispersion G of the following formulation 7.
<Prescription 7>
NK binder MX-HN 10 parts by mass (acrylic resin manufactured by Shin-Nakamura Chemical Co., Ltd., solid content concentration: 40% by mass)
2 parts by mass of titanium oxide (special grade reagent manufactured by Kanto Chemical Co., Ltd., average particle size: 0.05 μm)
Kaosela 2020 1 part by mass (dispersant made by Kao Corporation)
NK extender AK 70 parts by mass (Tapene-based emulsion made by Shin-Nakamura Chemical Co., Ltd.)
16 parts by mass of water

Comparative example 7
A fabric of Comparative Example 7 was obtained in the same manner as Example 2, except that the dispersion B was changed to the dispersion F of the following formulation 8.
<Prescription 8>
Superflex E-4000 10 parts by mass (Polyurethane resin emulsion manufactured by Daiichi Kogyo Seiyaku Kogyo Co., Ltd., solid content concentration: 45% by mass)
Zinc oxide 2.25 parts by mass (large particle zinc oxide manufactured by Sakai Chemical Co., Ltd., average particle size: 10.0 μm)
Kaosela 2020 1 part by mass (dispersant made by Kao Corporation)
NK extender AK 70 parts by mass (Tapene-based emulsion made by Shin-Nakamura Chemical Co., Ltd.)
16 parts by mass of water

  The fabrics obtained in Examples and Comparative Examples were subjected to various evaluations. The evaluation results are summarized in Table 1 and shown.

  As is clear from Table 1, in the anti-blurring fabric of the present invention obtained in Examples 1 to 3, the fiber surface of the fabric is covered with a resin, so the ink of the oil-based pen contacts the fiber surface. And the bleeding of the ink due to the capillary phenomenon was prevented. Furthermore, since fine irregularities resulting from the fine particles are formed on the surface of the coating layer, the value of the average coefficient of friction (MIU) falls within the range defined in the present invention, and characters can be clearly and clearly written, Furthermore, the reduction in character density due to repeated washing was suppressed, and it was suitable as a cloth for bibs or names. In addition, the value of the average friction coefficient (MIU) became in the suitable range by combining the resin kind or the fine particle kind suitably.

  The fabric obtained in Comparative Example 1 was poor in anti-spreading property and writability because the coating layer was not formed and the value of the average coefficient of friction (MIU) was too small. In Comparative Example 2, in place of forming a coating layer on the surface of the fabric, a water repellent was applied to perform water repelling. Therefore, although the anti-smearing property is exhibited, the value of MIU is too small because the fine particles are not held, the character is thin (that is, the writing property is poor), and the washing durability of the ink is insufficient.

  In the fabric obtained in Comparative Example 3, the fine particles were not contained in the coating layer, so the value of the average coefficient of friction (MIU) was too small, and the ink anti-bleeding property and the writing property were inferior.

  The fabric obtained in Comparative Example 4 had few fine particles, and the value of the average coefficient of friction (MIU) was too small, and was inferior in the ink bleeding prevention property and the writing property. In Comparative Examples 3 and 4, since the number of irregularities on the surface of the coated layer was small, the permeability of the ink was high, and bleeding of the written portion became thick and the dropout of the ink after washing was slightly reduced. , Was not enough.

  The fabric obtained in Comparative Example 5 had a large amount of fine particles and an insufficient amount of resin, so the strength of the coating film was weakened, and it is surmised that the resin film or the fine particles were easily detached in washing or various measurements. As a result, the density of the ink is low, and the washing durability of the ink is poor. In addition, since the number of fine particles is large and the unevenness of the resin surface is large, the value of the average friction coefficient (MIU) is large. The permeability of the ink was low, and the anti-smearing property was slightly improved, but it was not sufficient.

  In the fabric obtained in Comparative Example 6, the average particle diameter of the fine particles was small, and the value of the average coefficient of friction (MIU) was too small, and the bleeding resistance and the writing property were poor. In Comparative Example 6, since the number of irregularities on the surface of the coated layer was small, the permeability of the ink was high, and bleeding of the written portion became thick to reduce dropout of the ink after washing slightly. It was not a thing.

In the fabric obtained in Comparative Example 7, the average particle diameter of the fine particles was too large, the frictional resistance became low, and the value of the average coefficient of friction (MIU) became too small. Therefore, it was inferior to washing | cleaning durability and writing property. Although the value of MIU was too small in Comparative Example 7, it is surmised that a certain level of anti-bleeding property was secured because the contact area of the uneven portion with the oil-based pen point was very large.

Claims (6)

A bleeding prevention processed fabric comprising a fabric and a coating layer,
The coating layer contains a resin and fine particles,
The average particle diameter of the fine particles is 0.1 to 3 μm,
The bleeding prevention processed fabric characterized in that the average friction coefficient measured according to the KES method on the surface of the coated layer is 0.15 to 0.30.
The bleeding prevention processed fabric according to claim 1, wherein the fine particles are at least one selected from the group consisting of titanium oxide fine particles, silicon oxide fine particles, zinc oxide fine particles, and aluminum oxide fine particles.
The said resin is 1 or more types of resin selected from the group which consists of an acrylic resin, a polyurethane-type resin, vinyl acetate type resin, and a polyester-type resin, The bleeding of Claim 1 or 2 characterized by the above-mentioned. Prevented processed fabric.
The said resin is acrylic resin, The bleeding prevention processed fabric in any one of Claims 1-3 characterized by the above-mentioned.
The mass ratio of the said resin and the said microparticles | fine-particles in the said coating layer is (microparticles) / (resin) = 0.25-2.0, The characteristics in any one of the Claims 1-4 characterized by the above-mentioned. The bleeding prevention processed fabric of description.
The bleeding prevention processed fabric according to any one of claims 1 to 5 , which is for a number, a name, a name tag tag, an event curtain, or a signboard.