JP2019178438A - Cloth product having printed pattern - Google Patents

Abstract

To provide a cloth product having a printed pattern in which the printed pattern portion is visible even if the color of a base is a dark color or it is a light color, and the printed pattern emits light by phosphorescence and an incident light can be retroreflected.SOLUTION: In a cloth product having a printed pattern, the printed pattern portion of the cloth product contains 31.0 to 55.0 mass% of a plastisol ink as solid content, 19.0 to 32.0 mass% of a retroreflective material, 19.0 to 32.0 mass% of a luminous material, 1.0 to 9.0 mass% of a masking material containing at least one of a white pigment and a pearl pigment, and 0.1 to 0.95 mass% of a metal powder.SELECTED DRAWING: None

Description

The present invention relates to a fabric product having a printed pattern.

A technique for printing a printed pattern such as letters and figures on a cloth product such as a T-shirt is known.

For example, Patent Document 1 describes a technique of laminating a base, a first ink layer, and a second ink layer in the order described by screen printing. Since there are a plurality of ink layers, it is said that even if the color of the underlying material is a dark color system, it is possible to provide printed matter of bright characters and figures.

Patent Document 2 describes a fire fighting suit for a fire brigade having a light emitting portion. The light-emitting portion has a structure in which glass beads, a phosphorescent material, and a reflective material composed of mica coated with titanium oxide are embedded in a resin layer. According to the present invention, the display function can be exhibited even under severe conditions without light.

JP-A-2005-212451 JP 2009-151213 A

According to the method of Patent Document 1, it is supposed that a printed matter of bright characters or figures can be provided even if the background color is dark. However, when printing on a light-colored background, the visibility of characters and figures may be reduced.

Patent Document 2 describes that a retroreflective material and a phosphorescent material are blended in a light emitting part of a fire fighting garment for a fire brigade, but the color of the coloring part in the case where the background color is a dark color system or a light color system is described. Visibility is not described.

In the present invention, the printed pattern has good visibility regardless of whether the background color is dark or light, and the printed pattern emits light by storing light and the incident light is retroreflected. An object of the present invention is to provide a fabric product having a printed pattern that can be printed.

A fabric product having a printed pattern, wherein the printed pattern of the fabric product comprises 31.0 to 55.0% by mass of a plastisol ink in terms of solid content, 19.0 to 32.0% by mass of a retroreflective material, 19.0 to 32.0 mass% of phosphorescent material, 1.0 to 9.0 mass% of concealing material containing at least one of white pigment and pearl pigment, and 0.1 to 0.95 mass of metal powder The above-mentioned problems are solved by a fabric product having a printed pattern containing%.

In the fabric product having the printed pattern, the printed pattern is preferably configured as a single layer. In the fabric product having the above-mentioned printed pattern, the plastisol ink preferably does not contain a pigment or a dye.

According to the present invention, regardless of whether the background color is dark or light, the printed pattern has good visibility, and the printed pattern emits light by phosphorescence and incident light is retroreflected. A fabric product having a printed pattern can be provided.

Hereinafter, preferred embodiments for carrying out a fabric product having a printed pattern of the present invention will be described.

Examples of fabric products having a printed pattern include fabrics; accessories such as clothes, bags, shoes, etc .; rain gears such as umbrellas and feathers. The clothes include short-sleeved or long-sleeved T-shirts, shirts, jackets, jumpers, jackets such as jackets, or garments such as trousers and skirts. Examples of the cloth include cotton cloth, cloth made of synthetic fibers such as nylon and polyester, leather, synthetic leather, and denim cloth.

The method for forming the printed pattern on the fabric product is not particularly limited, but the printed pattern can be formed on the fabric product by, for example, screen printing. In screen printing, a mesh is stretched on the screen, a photosensitive material is applied to the mesh stretched on the screen, and the photosensitive material is photosensitized with the positive film corresponding to the desired print pattern, and the plate is made. Printing can be performed by placing ink on the squeegee and pressing it against the fabric product with a squeegee.

Screen printing is preferable because a large-scale apparatus is not required when printing a desired printed pattern on a fabric product. By changing the screen mesh, the print pattern to be printed can be freely changed, so that it is possible to cope with printing of a small lot.

The color of the fabric on which the printed pattern is printed ranges from dark to light. In particular, in the case of casual clothing such as T-shirts, fabrics of various shades are used in accordance with fashion and customer preferences. Depending on the color of the fabric, the composition of the ink may be reviewed to improve the visibility of the printed pattern in the bright place and improve the phosphorescent performance and retroreflective performance in the dark place. And ink inventory management is complicated. For this reason, the printed pattern of the fabric product is excellent in visibility in a bright place even if the background color is dark or light, and has a high luminous performance and retroreflective performance in the dark. desirable.

The printed pattern as described above can be realized by having the following composition in a state where the printed pattern of the fabric product is dried and solidified. That is, the concealment containing plastisol ink containing 31.0 to 55.0% by mass in terms of solid content, 19.0 to 32.0% by mass of a retroreflective material, and at least one of white pigments and pearl pigments. It is a printed pattern containing 1.0 to 9.0% by mass of a material and 0.1 to 0.95% by mass of metal powder. In the plastisol ink, a diluent is added to impart plasticity to the ink. When blending the ink, from the following [Formula 1], the content (a) (% by mass) of a volatile component such as a diluent contained in the plastisol ink to be used is determined by a preliminary test. 2], the amount (Y ₂ ) (g) of the plastisol ink containing the diluent to be blended may be calculated backward.

ただし、aはプラスチゾルインクにおける揮発分の含有率（質量％）であり、Ｙ_１は予備試験における乾燥前のプラスチゾルインクの質量（ｇ）であり、Ｘ_１は予備試験で１５０℃、３分で乾燥した後におけるプラスチゾルの質量（ｇ）である。 [Formula 1]

However, a is the content (mass%) of the volatile matter in the plastisol ink, Y ₁ is the mass (g) of the plastisol ink before drying in the preliminary test, and X ₁ is 150 ° C. and 3 minutes in the preliminary test. It is the mass (g) of plastisol after drying.

ただし、Ｘ_２は、固形物換算によるプラスチゾルインクの含有量（ｇ）であり、Ｙ_２はインクを配合する際に配合すべき希釈液を含むプラスチゾルインクの量（ｇ）である。 [Formula 2]

However, X ₂ is the content of plastisol inks according solid basis (g), Y ₂ is the amount of plastisol ink containing a diluent to be incorporated in formulating ink (g).

The content of the printed pattern plastisol ink is more preferably 35.0 to 45.0% by mass in terms of solid content, and more preferably 38.0 to 43.0% by mass in terms of solid content. The content of the retroreflective material for the printed pattern is more preferably 23.0 to 29.0% by mass. The content of the phosphorescent material for the printed pattern is more preferably 23.0 to 29.0% by mass. The content of the print pattern concealing material is more preferably 3.0 to 6.0% by mass. As for content of the metal powder of a printed pattern, it is more preferable that it is 0.5-0.95 mass%.

Any plastisol ink may be used as long as it can be applied to a fabric product to form a coating film. For example, those containing synthetic resin particles, a filler, and a plasticizer can be used.

Examples of the synthetic resin include polyvinyl chloride-based synthetic resins such as vinyl chloride homopolymers, copolymers of vinyl chloride and vinyl acetate, copolymers of butyl methacrylate and isobutyl methacrylate, and polymers of methyl methacrylate. Examples thereof include acrylic synthetic resins such as coalescence.

Examples of the plasticizer include phthalic acid plasticizers such as diisononyl phthalate and di- (2 ethylhexyl) nilate; di- (2-ethylhexyl) adipate, di- (2-ethylhexyl) azelate, di- (2 -Fatty acid ester plasticizers such as -ethylhexyl) sebacate, and phosphate ester plasticizers such as tributyl phosphate, tri- (2-ethylhexyl) phosphate and 2-ethylhexyl diphenyl phosphate.

Examples of the filler include calcium carbonate, talc, silica, and barium sulfate.

The plastisol ink may contain a diluent, a thermosetting resin, or a curing agent. Examples of the diluent include hydrocarbons such as xylene, toluene, mineral spirits, and tetralin; esters such as nbutyl acetate; alcohols such as n-butanol; diacetone alcohol, cyclohexanone, etc. Examples include ketones. The diluting liquid may be any liquid that can adjust the viscosity of the plastisol and is lost by volatilization. Examples of the thermosetting resin include blocked isocyanate. Examples of the curing agent include compounds containing a hydroxyl group such as polyol ether polyol and polyester polyol. The blocked isocyanate is obtained by blocking a free isocyanate group of a urethane prepolymer obtained by reacting an isocyanate with a polyether polyol or a polyester polyol with a blocking agent. Examples of the blocking agent include alcohol, phenol, and amine.

By heat curing the plastisol ink with a thermosetting resin and a curing agent, it is possible to prevent the ink from being cured during the printing operation and reducing the efficiency of the printing operation. For example, when a printed pattern is formed by screen printing, the screen mesh may be clogged due to the plastisol ink curing over time. If a thermosetting resin and a curing agent are used, it is possible to control whether the ink is cured by the presence or absence of heating.

That is, the ink is not cured in principle until it is heated. For this reason, it is possible to effectively prevent the screen mesh from being clogged and to perform the printing operation efficiently. When the thermosetting resin is heat-cured, for example, it is preferable to solidify and fix the printed pattern by baking a fabric product. Baking can be performed, for example, by heating at 100 to 180 ° C. for 40 seconds to 10 minutes.

The retroreflective material is a material that reflects light incident from the light source and returns light toward the light source, and may be any material that can be added to the plastisol ink. Examples of the retroreflecting material include glass bead powder. Each glass bead is provided with a reflective layer such as aluminum covering a part, and is preferably spherical. The particle size of the retroreflecting material is not particularly limited, but for example, the particle size distribution is preferably in the range of 5 to 300 μm.

The phosphorescent material may be any material that can be blended with plastisol ink because it accumulates light by sunlight or light from a lighting fixture and glows in a dark place. For example, SrAl ₂ O ₄ : Eu, Dy (Eu and Dy are dopants), or Sr ₄ Al ₁₄ O ₂₅ : Strontium aluminate such as Eu, Dy; Alkali earth metal aluminates such as CaAl ₂ O ₄ , Or the powder of the phosphorescent material containing these 2 or more types of mixtures can be used. The particle size of the phosphorescent material is not particularly limited, but for example, the particle size distribution is preferably in the range of 1 to 200 μm.

As the masking material, a white pigment or a pearl pigment containing at least one kind is used. Examples of white pigments include titanium oxide, zinc white, lithopone, lead white, or a powder of a mixture of two or more thereof. Examples of the pearl pigment include a powder obtained by coating the surface of a substrate such as mica with a white pigment. The particle size of the masking material is not particularly limited, but for example, the particle size distribution is preferably in the range of 1 to 200 μm.

Examples of the metal powder include aluminum powder. Although the particle size of metal powder is not specifically limited, For example, it is preferable that a particle size distribution is the range of 1-200 micrometers.

The print pattern is preferably configured as a single layer. For example, when the print pattern is configured as a plurality of layers, a process of applying ink to a cloth product and solidifying it is required a plurality of times, which is complicated. If plastisol ink, retroreflective material, phosphorescent material, white pigment, concealment material, metal powder, etc. are blended into a batch of ink and applied to a fabric product in a single layer and solidified, This is preferable because the number of processes is reduced and the printing process can be simplified.

It is preferable to use a plastisol ink that does not contain a pigment or dye. The effect of the pigments and dyes originally contained in the plastisol ink on the visibility of the printed pattern in a bright place and the influence on the luminous performance and retroreflectivity of the printed pattern in a dark place Can do. The plastisol ink is preferably colorless and transparent in appearance.

Examples of the print pattern include arbitrary characters or figures. Characters include stylized characters. Shapes include simple shapes such as rectangles, circles, ellipses, and designs such as logos, marks, and patterns.

Hereinafter, the present invention will be described more specifically with reference to examples.

By adjusting the inks of the following Example 1, Comparative Example 1 and Comparative Example 2, the back part of a white or black T-shirt composed of a plain cotton woven fabric was about 4.3 mm long and about 12. A 5 mm rectangular figure was printed by screen printing. About the figure of the T-shirt, dry friction fastness, washing fastness (wet), retroreflective strength, afterglow intensity after LED light irradiation, figure visibility against a white background, and figure against a black background by the methods described later The visibility of was evaluated.

[Example 1]
A plastisol ink, a retroreflective material, a phosphorescent material, a masking material 1, a masking material 2, and metal powder were mixed to prepare an ink. Since the viscosity of the ink was too large to be handled by screen printing, a volatile diluent was separately added to the ink to adjust the viscosity. The plastisol ink contains a vinyl chloride homopolymer as a synthetic resin, a phthalic acid plasticizer, calcium carbonate as a filler, a blocked isocyanate as a thermosetting resin, a polyester polyol as a curing agent, and a diluent. A commercially available plastisol ink was used. This plastisol ink has a colorless and transparent appearance containing neither pigment nor dye.

As the retroreflective material, glass beads partially coated with an aluminum thin film having a particle size distribution of 80 to 120 μm were used. As the phosphorescent material, a phosphorescent material powder containing SrAl ₂ O ₄ : Eu, Dy and having a particle size distribution of 0.5 to 100 μm was used. As the masking material 1, a white pigment powder containing titanium dioxide and having a particle size distribution of 1 to 60 μm was used. As the masking material 2, a powder of pearl pigment having a major axis diameter distribution range of 10 to 60 μm in which the surface of mica was coated with titanium dioxide was used. As the metal powder, an aluminum powder having a particle size distribution of 10 to 60 μm was used.

The plastisol ink, the retroreflective material, the phosphorescent material, the masking material 1, the masking material 2, and the metal powder are 41.0% by mass, 26.8% by mass, 26.8% by mass and 2. It mix | blended so that it might become 2 mass%, 2.2 mass%, and 0.9 mass%. The solid content conversion is a state in which the diluent contained in the plastisol ink and / or the diluent added to adjust the viscosity of the ink is volatilized, and a solid part that does not volatilize remains.

The plastisol ink used in this example had a mass of 9.17 g before being dried at 150 ° C. for 3 minutes and a mass of 8.42 g after being dried under the same conditions. From the above formula 1, the volatile content in the plastisol ink is 8.2 mass% (a in formula 2). For example, when preparing 1000 g of the ink according to Example 1, 41.0% by mass, that is, 410 g (X _{2 of} Formula ₂ ) in terms of solid content is required as described in Table 1. . From Equation 2 above, it can be seen that a plastisol ink containing about 446 g of diluent may be blended.

The above ink is placed on the screen mesh on which the through holes corresponding to the rectangular figure of 4.3 mm in length and about 12.5 mm in width are formed, and the rectangular figure is transferred to the back part of the T-shirt with a squeegee. did. And the T-shirt which printed the figure was baked at 150 degreeC for 3 minute (s).

[Comparative Example 1]
The same raw material as in Example 1 was used, and a graphic similar to that in Example 1 was printed using an ink whose mixing ratio was changed in terms of solid content as described in the column of Comparative Example 1 in Table 1. The T-shirt was baked under the same conditions as in Example 1.

[Comparative Example 2]
The same raw material as in Example 1 was used, and a graphic similar to that in Example 1 was printed using an ink whose mixing ratio was changed in terms of solid content as described in the column of Comparative Example 1 in Table 1. The T-shirt was baked under the same conditions as in Example 1.

About each T-shirt of Example 1, Comparative Example 1, and Comparative Example 2, dry friction fastness, selective fastness (wet), retroreflective strength, afterglow strength after LED light irradiation, white background The visibility of the figure against the black and the visibility of the figure against the black background were evaluated.

The dry friction fastness was evaluated according to JIS L 0849 type II. The fastness to washing was evaluated according to JIS L 0844 A-2.

For retroreflective strength, the T-shirts according to Example 1, Comparative Example 1 and Comparative Example 2 were fixed to the wall, and the T-shirts were illuminated with headlights facing upwards from the position 100 m away from the T-shirts. The intensity of retroreflection was visually confirmed from the position of the car. When the evaluation result was ◯, bright reflected light with sufficient visibility was confirmed. When the evaluation result is Δ, the reflected light can be confirmed, but the dim reflected light is confirmed.

The afterglow intensity after the LED light irradiation was confirmed visually by checking the afterglow intensity in a dark place after 5 minutes had elapsed after irradiating the T-shirt with the light of a 500 lumen LED. When the evaluation result was ◯, bright afterglow with sufficient visibility was confirmed. An evaluation result of Δ was that afterglow was confirmed but only dim afterglow was confirmed.

The visibility of the printed pattern with respect to the white background was confirmed visually by checking the visibility of the printed pattern when the T-shirt fabric was white and a rectangular figure with the above dimensions was printed on the fabric. When the evaluation result was ◯, the color of the printed pattern was darker gray than the white color of the fabric, and the printed pattern was clearly visible without being buried in the white color of the fabric. An evaluation result of Δ was a bright grayish color in which the color of the printed pattern was close to the white color of the fabric, and it was buried in the white color of the fabric and the printed pattern was inconspicuous.

The visibility of the printed pattern with respect to the black background was confirmed visually by checking the visibility of the printed pattern when the T-shirt fabric was black and a rectangular figure with the above dimensions was printed on the fabric. When the evaluation result was ◯, the color of the printed pattern was a lighter grayish color than the black color of the fabric, and the printed pattern was clearly visible without being buried in the black color of the fabric. The evaluation result of Δ was a dark grayish color in which the color of the printed pattern was close to the black color of the fabric, and it was buried in the black color of the fabric and the printed pattern was inconspicuous.

As is clear from the comparison of Example 1, Comparative Example 1 and Comparative Example 2 in Table 1, 31.0 to 55.0% by mass of the plastisol ink in terms of solid content, and the retroreflective material 19.0 to 32. 0.0 mass%, phosphorescent material 19.0-32.0 mass%, concealment material 1.0-9.0 mass% containing at least one of white pigment and pearl pigment, and metal powder 0.0. It can be seen that the printed pattern containing 1 to 0.95% by mass is excellent in visibility in a bright place with respect to both the white fabric and the black fabric. This printed pattern is excellent not only in white or black but also in fabrics having various colors such as red, blue, or yellow in the visibility of the printed pattern in a bright place. For this reason, it is possible to print a printed pattern with excellent visibility on various fabric products with one kind of ink.

Further, as is clear from the comparison of Example 1, Comparative Example 1 and Comparative Example 2 in Table 1, the dry friction fastness of the printed pattern within the above numerical range is higher than that of the printed pattern not satisfying the numerical range. It was excellent in all of the fastness to washing, the retroreflectivity, and the afterglow performance after phosphorescence, and these performances were balanced. For this reason, with one kind of ink, it is possible to print a printed pattern having high fastness to friction, excellent retroreflectivity, and excellent afterglow performance after phosphorescence.

Since the printed pattern within the above numerical range is excellent in the afterglow performance after light storage, visibility can be imparted to the printed pattern by light emission due to light storage in a dark place. In places where there is light even in a dark place such as a sidewalk on the side of a roadway, it is possible to impart strong visibility to the printed pattern by retroreflection. Moreover, since the printed pattern is excellent in friction fastness and selective fastness, there is little wear deterioration due to rubbing of the printed pattern or repeated washing.

Claims (3)

A cloth product having a printed pattern,
The printed pattern of fabric products
31.0 to 55.0% by mass of plastisol ink in terms of solid content,
Retroreflective material 19.0-32.0 mass%,
19.0 to 32.0 mass% of phosphorescent material,
1.0 to 9.0% by mass of a concealing material containing at least one of white pigments and pearl pigments;
A fabric product having a printed pattern containing 0.1 to 0.95% by mass of metal powder. The fabric product having a printed pattern according to claim 1, wherein the printed pattern portion is configured as a single layer. The fabric product having a printed pattern according to claim 1 or 2, wherein the plastisol ink contains no pigment or dye.