JPS63218399A - Textile printing method for rush product - Google Patents

Abstract

PURPOSE:To obtain a rush product with excellent color forming properties and dyeability, by bringing a printing surface of a thermal transfer paper comprising a sublimable dye into close contact with a surface coated with an undercoating agent comprising a synthetic resin as an essential constituent after drying the undercoating agent, and printing on the coated surface through thermal transfer. CONSTITUTION:An undercoating agent is preferably a synthetic resin emulsion, and is applied to the surface of a rush product in an amount of 1-20 g/m<2> as solid components. It is particularly preferable that the synthetic emulsion comprises a linear polyester, polyurethane, a polyacrylate, an ethylene-vinyl chloride copolymer or the like, for enhancing color forming properties and dyeability for sublimable dyes. When a coloring agent is added to the undercoating agent in an amount of 30-70 wt.%, the adhesion of the agent to stems of rush is enhanced, and discoloration of the stems with time can be covered up. The sublimable dye for use in a thermal transfer paper may be any one which can show sublimation, evaporation or a thermal fusion migration phenomenon at a temperature of 150-230 deg.C, and may generally be a monoazo, diazo or anthraquinone derivative, a diphenylamine disperse dye, a triphenylamine basic dye or an oil-soluble dye.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for printing lily grass products with excellent color development and dyeing properties.

(Prior art) Conventionally, the method of adding patterns and designs to knitted and woven products such as straw, wisteria, rush, etc. is to color the entire or partial back of each product before weaving, and then paint each strand one by one according to the desired pattern. The following methods are known: knitting and silk screen printing.

In particular, rush products such as morin and tatami mats contain white pigments, dyes, and binders as their main ingredients, and there is a risk that the surface will be covered with dirt at the final stage of settling after finishing the weaving and painting, and give off the texture of blue tatami. It was also treated with Tojiku's aqueous blue-tasting chemical solution to give it a blue tint.

(Problem to be solved by the invention) However, when placing a pattern on the surface of a moya or tatami mat as described above, the method of braiding the stems of grass or other plants that you want to color in advance, such as blue tinting, is difficult to do. Due to restrictions on thickness and warp spacing, it was limited to large, simple designs, and could not be applied to fine designs.In addition, although it is possible to create detailed designs using silk screen printing, The stitches in the stems are coarse and the surface of the knitted fabric has large irregularities, so even if the ink is printed through a screen, the lines of the pattern may be interrupted by the uneven parts of the stitches.
There were problems such as blurred outlines, and it was practically impossible to include delicate designs.

In addition, the above-mentioned printing, backing, etc. are simply coatings that adhere to the surface, so the coating layer will peel off with slight friction such as rubbing with fingers or wiping with a cloth or rag. It also had the disadvantage that mortar burn progressed significantly.

In addition, in order to improve the drawbacks of the silk screen printing method, the sublimation transfer printing method allows the design to be faithfully transferred, but the dyeability is insufficient, resulting in poor color development, and it is difficult to use with fingers or cloth. It has the disadvantage that the color easily fades when the pattern surface is rubbed.

(Means for Solving the Problems) The present inventors have arrived at the present invention as a result of intensive studies to solve the above problems.

That is, in the present invention, the printed surface of thermal transfer paper on which a coloring agent containing a sublimable dye is printed is brought into close contact with a surface on which an undercoat containing a synthetic resin as an essential component has been applied and dried,
The present invention relates to a printing method for articles in which printing is performed by heating and transfer.

In the present invention, the rush product refers to a sheet-like product made by weaving stems of rushes together or with other threads, strings, etc., or applied processed products thereof.

In the present invention, the primer is a synthetic resin emulsion or a synthetic resin organic solvent mixed with a coloring agent if desired, and is coated on the surface of the rush product in a solid content range of 1 to 2017 m2. Safe to handle.

Examples of the synthetic emulsion used in the present invention include polyvinyl acetate, vinyl acetate/ethylene copolymer hexapolymer, vinyl acetate/ethylene/acrylic copolymer, ethylene/vinyl chloride copolymer, polyvinyl chloride, polyvinylidene chloride,
Polyacrylate, polyacrylic I)kH ester, silicone/acrylic copolymer, colloidal silica/acrylic/styrene copolymer, styrene-butadiene copolymer,
Acrylonitrile-butadiene copolymer, polyurethane, silicone/urethane copolymer, linear polyester,
It is selected from the group of ionomers, polystyrene, polyethylene, styrene/maleic acid copolymers, etc., but is not limited thereto. lfi or 2g as needed! 1
A mixture of the above can also be used. Among the synthetic resin emulsions mentioned above, linear polyesters, polyurethanes, and polyacrylates have relatively excellent sublimation dye color development and dyeability.

Ethylene/vinyl chloride copolymers are particularly preferred.

Further, the coloring agent blended into the undercoating agent consists of either an inorganic pigment or a dye, or a mixture of both. Any inorganic pigment may be used as long as it is used as a coating pigment for paper manufacturing. These t-1 types or a mixture of two or more types can also be used. For example, when using white pigments such as calcium carbonate, titanium oxide, clay, aluminum hydroxide, talc, etc. as a base, and sometimes Moliang is used as a decorative item other than a rug,
Colored pigments may be used for aesthetic reasons and design needs.

The above-mentioned dyes are selected from the group consisting of direct dyes and basic dyes, and may be used alone or in combination of two or more. The purpose of blending an inorganic pigment or dye into the undercoat is to prevent heat discoloration of rush, suppress the original hue of rush, and improve color development after transfer printing.

Up to 70% by weight of colorant can be added to the primer if desired. In particular, when 30 to 70% by weight is added, the adhesion to the rush stem material is good and it is possible to cover the discoloration of the rush stem over time.

If the amount of the coloring agent exceeds 70% by weight, the adhesion to the rush stems will be insufficient, which is not preferable.

In addition, the coating amount of the primer is 1 to 201/m as solid content.
8 degree is preferable, and if it is 19/m2, the color development of the sublimation transfer dye in the subsequent process is insufficient, and if it exceeds 201/m2, the unique elasticity and flexibility of rush is lost and it becomes hard, which is not preferable.

Further, the drying temperature after application is preferably about 80 to 120°C; if the temperature is too high, the rush tends to discolor.

The hue of the coloring agent added to the undercoat can be arbitrarily selected as desired, but in the case of tatami mats, for example, a coloring agent that produces a bluish texture is suitably selected depending on the taste of conventional blue tatami mats.

Next, the design of the heat transfer paper printed with the coloring agent containing the sublimable dye used in the present invention may be a design if desired, or the design and the blank area other than the design may be printed with a plain color on the entire surface. Alternatively, in an extreme case, the entire surface may be covered with plain printing without any design. The hue of both the patterned area and the plain printed area can be selected as desired from the viewpoint of aesthetics and design, but in particular, the hue of the plain printed area is blueish to match the taste of the tatami surface, etc., as in the case of the undercoat. The system is suitably selected. If sufficient coloring agent is used in the undercoat, the plain printed portion is not necessarily necessary, but by further printing with the plain printed portion, thermal discoloration of the rush can be more effectively shielded.

The sublimable dye used in the thermal transfer paper may be any dye that exhibits sublimation, vaporization, or thermal melt transfer phenomenon at a temperature of 150 to 230°C, including monoazo, diazo, anthraquinone derivatives, diphenylamine disperse dyes, Triphenylmethane basic dyes and oil-soluble dyes are often used.

Transfer printing is performed by bringing the dye-printed surface of such sublimation thermal transfer paper into close contact with the surface of the rush product and heating it. The thermal transfer temperature is preferably in the range of 180°C to 2J'O°C,
More preferably, the temperature is around 185°C.

If the temperature is too high, heat discoloration of rush products is likely to occur, and if the temperature is too low, the heat transfer will be incomplete.

(Effects of the invention) In the present invention, the design part uses a heat transfer printing method mainly using sublimation dyes, so it is possible to express delicate designs, and the surface of the rush product is printed on the surface of the rush product before heat transfer. Since an undercoat layer of synthetic resin Emaruno, N, etc. is provided in advance, the dye adheres well and exhibits excellent color development.

In addition, in particular, the use of dyes or pigments in the base coat and/or non-patterned areas of thermal transfer printing with a blue tinge similar to Aotatami style or other desired hues can mask heat discoloration or discoloration over time of the rush stem material, and can be used for long-term use. The texture of blue tatami or fashion can be maintained.

The scope of application of the present invention is not limited to simply straw, wisteria,
In addition to rugs made of pampas grass, Japanese cypress, reeds, reeds, etc., or bamboo and other plants made of natural plants such as bamboo, there are also rugs made of pampas grass, Japanese cypress, reeds, reeds, etc., as well as bamboo blinds and gridiron products made of grass, rock wool, asbestos, alumina, and silica. It is also effective on inorganic fiber sheets made of fibers, etc. In particular, inorganic fiber sheets that have poor surface properties and are difficult to print directly may be used, depending on the application, such as colored designs and displays for non-combustible curtains, non-combustible tents, non-combustible stage curtains, heat-resistant clothing, non-combustible wallpaper, etc. The effect is maximized.

Further developments include non-woven fabrics made from paper pulp and organic fibers, and impregnated sheets made by impregnating these sheets with synthetic resin liquid, which can be used for shoes, bags, and decorative materials for building materials. However, this can also be effective depending on the application.

(Example) The present invention will be explained below with reference to Examples.

Example 1 and Comparative Example 1 60 parts of titanium oxide (manufactured by Bancho Sangyo Co., Ltd., trade name: Thaibake R-820) - 0.3 part of sodium rophosphate and 0.2 part of polyvinyl alcohol (manufactured by Nippon Gosei Co., Ltd.) , trade name Co-9-senol GL-02) in water to prepare a colorant dispersion (1) with a solid content concentration of 60%. This colorant dispersion (1) and ethylene/vinyl chloride copolymer Emaruno (manufactured by Sumitomo Chemical Co., Ltd., trade name Sumie IJ-
1-1010) and solid content weight ratio of 0/10 and 2, respectively.
/8, 4/6, and 6/4, and applied the preliminary coating liquid to the surface of the iris so that the solid content was 4.2 fi/m'' for experimental purposes.
It was coated using an lrwi machine and dried at 100°C to form a coating layer on the surface of the strawberry grass.

Printing ink containing sublimable dye (manufactured by Toyo Ink Co., Ltd., product name: Liotran-FG) is applied to the surface of Nenmoya treated as described above.
) was used to print a four-color floral pattern using a gravure printing machine, and the printed surface of transfer paper (Yonetsubo aoII/m"), which was unprinted except for the design area, was pressed and heated at 185℃-30
After heating and adhering for a second, the transfer paper was peeled off to obtain Igusa Kosan with the floral pattern transferred thereto.

Table 1 shows the properties of the obtained violet.

Comparative Example 1 The same procedure was carried out except that the colorant dispersion (1) of Example 1 and the ethylene/vinyl chloride copolymer emulsion were used as the undercoating liquid in a solid content weight ratio of 8/2 and 1010, respectively. In exactly the same manner as in Example 1, a flower pattern was obtained in which the floral pattern was transferred.

The characteristics of the obtained Koa are shown in No. 1 and 2.

Example 2 As a colorant dispersion, the colorant dispersion used in Example 1 (
1) Same as Example 1 except that a colorant dispersion (2) with a small amount of K-methylene blue and naphthol green dyes added and showing a pale blue-green-white color tone was used, and the blending ratio of this dispersion and the resin liquid was set to 476. In the same way, a moi violet with a floral pattern transferred thereto was obtained.

The characteristics of the obtained Koa are shown in Table 1.

Example 3 Koa with a floral pattern transferred was obtained in exactly the same manner as in Example 2, except that the transfer paper used in Example 2 with the peripheral part of the pattern printed in pale blue-green was used as the transfer paper. .

The properties of the obtained Kumoya are shown in Table 1.

Comparative Example 2 A floral print was obtained by transfer printing in the same manner as in Example 1 except that no undercoating treatment was performed.

The characteristics of the obtained NFC Moza Kosan are shown in Table 1.

As mentioned above, as is clear from the characteristic results of Nenkoa obtained in Examples 1 to 3 and Comparative Examples 1 to 2, dyes using synthetic resins as undercoating agents have a quick color development property, and undercoat It is clear that when the coloring agent in the staining agent is 70% by weight or less, the adhesion of the dye is excellent, and in particular, when the coloring agent is 30% by weight or more, the heat discoloration resistance is excellent. Furthermore, those in which the non-design areas of the transfer layer are also printed with dyes have excellent heat discoloration resistance.

Example 4 In Example 1, m2 was used as the synthetic resin used for the primer.
Example 1 except that the synthetic resin emulsion shown in the table was used.
In exactly the same manner as above, the undercoat was applied and dried, and transfer printing was performed to obtain a floral pattern.

The characteristics of the obtained products are shown in Table 2.

Example 5 Ethylene/vinyl chloride resin emulsion (manufactured by Sumiya Kagaku Kogyo Co., Ltd., trade name Sumie') 1010) was diluted with water and sprayed with a solid content of 0 to 35117 m'' on the strawberry roof.
After drying at 00°C, a coating layer consisting only of resin liquid was formed.

Table 3 shows the physical properties of kosan, which was obtained by contact heating and transfer printing the same transfer paper used in Example 3.

If the coating amount is less than xiim'', the color development and dyeing properties will not be sufficient, and even if the coating amount is more than 20.97m, the color development and dyeing properties will not improve. It gradually worsens as the coating amount increases, but it becomes particularly bad when the coating amount exceeds the range of 1 ol/m2 or more. Therefore, this shows that the most desirable coating range of 3 to 8.97 m defined in the present invention is the most appropriate. ing.

Comparative Examples 6 and 7 A solid content of 2117 m2 of a blue-tinged agent (manufactured by Dainichiseika Co., Ltd., trade name: Igusa Kosan-use Blue-tinging agent) to create a spine-like texture on the surface of the grass was sprayed, and after drying. Comparative Example 6 was prepared by heating a book with blank areas other than the transfer paper and printing the book by contact heating.

In addition, Comparative Example 7 was prepared by spray-drying a bluish agent at a solid content of 21i 7m'' onto the above-mentioned Kosan without any treatment and transfer printing.

The physical properties of Comparative Examples 6 and 7 are compared with those of Example 3 and are shown in Table 4.

It can be seen that the products of the present invention exhibit particularly superior effects in terms of color development, dyeability, color change, and flexibility compared to comparative products, and that other methods do not meet the objectives of the present invention.

Examples 6, 7, 8. Comparative example 8 Ethylene/vinyl chloride copolymer resin emulsion.

(Sumie Kagaku Co., Ltd., product name Sumie! J-) 101
0) and the colorant dispersion (2) described in Example 2 at a solid content ratio of 674, the mixture was sprayed onto the surface of Igusa Kosan, and the solid content was 5 f! A coating layer of /m2 was obtained. Example 6 was prepared by heat-adhering a transfer paper with a plain print on the entire surface colored to have the same color tone as the bluish texture to this Ikusa Kosan to obtain a lush Ikusa Kosan. (Colored coating layer + colored transfer) Igusa Kosan obtained in the same procedure except that Example 60 colored dispersion (2) was replaced with (1) was used as Example 7. (Plain coating layer 10 colored transfer) In Example 6, the entire plain printed area on the transfer paper was transferred without any bluish tone and was otherwise the same as Example 6. 8. (Colored coating layer + solid color transfer) As Comparative Example 8, a blue agent (Dainichiseika Co., Ltd., Blue Agent) was diluted with water in Igusa Kosan.
The solid content is 2.51/m2 and is applied to Igusa Kosan.

The physical properties of Examples 6, 7.8 and Comparative Example 8 are shown in Table 5.

The product of the present invention does not simply have a blue tint attached, but the sublimable dye and the rice grass are completely bonded and adhered to each other, so it has a long-lasting blue tint that cannot be obtained with conventional blue tinting agents or dyeing treatments. It showed a long-term relationship.

Table 5 Patent applicant: Kojin Co., Ltd. Procedural amendment July 20, 1986

Claims (1)

[Claims] 1. The printed surface of thermal transfer paper printed with a coloring agent containing a sublimable dye is closely attached to the surface of which a primer containing a synthetic resin as an essential component has been applied and dried, and heated. A method for printing rush products, which is characterized by printing by transfer. 2. Claim 1, wherein the primer is composed of a synthetic resin emulsion and 70% by weight or less of a coloring agent.
How to print rush products. 3. The method for printing rush products according to claim 1, wherein the printed pattern of the thermal transfer paper has the same hue over the entire surface. 4. The method for printing rush products according to claim 1, wherein the printed pattern of the thermal transfer paper is the same hue as the pattern and the entire area other than the pattern. 5. The method for printing a rush product according to claim 1, characterized in that the rush product is a mat made of rush. 6. Dessert products that are sublimated and printed with a dye mainly composed of sublimation dyes on a surface that has been previously coated with an undercoat containing synthetic resin as an essential component.