Method of manufacturing printed materials

Abstract

To provide a printing material that can impart characteristics such as three-dimensionality due to a velvet effect, a shimmering effect, and an improved soft tactile sensation to a printed product subjected to a printing treatment, and a printed product subjected to a printing treatment using the printing material.SOLUTION: Provided is a raised foam silicone resin composition for printing comprising a silicone resin, a foaming agent, and carbomer, and others, a raised foam silicone resin comprising the same, and a printing agent using the same.SELECTED DRAWING: Figure 1b

Description

Technical Field

[0001] The present invention relates to a raised-foam silicone resin, a printing paste containing the raised-foam silicone resin, a printing method using the printing paste, and a printed article.

Background Art

[0002] Generally, as methods for dyeing textiles, there are dip dyeing in which textiles are immersed in a solution of a dye and other agents for dyeing, and printing in which a formulation obtained by blending a dye, a pigment, etc. with a thickening stabilizer is printed on the surface of textiles using a screen or a roller.

[0003] Dip dyeing means immersing the dyed material in a dyeing solution to dye the whole in the same color, and is often used as a general term for plain dyeing. Such a mechanical device is very simple for using most mechanical devices. The dyed material is immersed while being rotated partially in the dyeing solution. Generally, a jigger is used for textiles such as cotton, silk, and rayon, and a wince is used for woolen textiles. The jigger is a simple dyeing machine composed of two rollers and a dyeing cylinder. A cut is wound around one roller, and while feeding it out, it is immersed in the dyeing solution and wound up on the other roller. Next, this operation is repeated several times until the desired color tone appears while winding up in the reverse direction. The wince is fixed across a plurality of bars around elliptical or circular side plates, and is a device for rotating this to move the cloth. A circle is used for dip dyeing of woolen textiles, and an ellipse is used in other cases. Also, when dyeing in a large quantity, a continuous dyeing machine in which dyeing, water washing, width expansion, and drying are connected in a row is used.

[0004] Printing refers to the method of dyeing patterns onto fabric, and is used on paper and other materials, but it specifically refers to the technique of partially coloring threads and fabrics, especially fabrics, to create the desired pattern. Printing can be classified in various ways, such as synthetic fabric printing, cotton fabric printing, wool fabric printing, and silk fabric printing, which are classifications based on the type of fiber being printed, and machine printing and hand printing, which are classifications based on whether the printing process is mechanical or manual.

[0005] The aforementioned mechanical printing methods are further classified into roller printing, automatic screen printing, rotary screen printing, transfer printing, and digital textile printing (DTP).

[0006] Roller printing is a method of printing fabric by engraving motifs into a cylindrical roller made of copper or iron, filling the engraved areas with dye, and passing the fabric through the roller. As the oldest mechanical printing method, it is often used for simple patterns with few colors, such as stripe patterns and dot patterns.

[0007] Automatic screen printing is the most widely used mechanical printing method today. It involves fixing a screen frame on a printing table that is set up evenly, and a squeegee sweeps the dye up and down to apply it. The fabric attached to the belt automatically moves to align with the screen frame.

[0008] Rotary screen printing replaces the flat screen frame of automatic screen printing with a cylindrical metal screen frame. As the screen frame rotates, the fabric attached to the belt continues to move, printing the pattern. This method uses a machine that combines and improves upon a roller screen printing machine and an automatic screen printing machine.

[0009] Transfer printing is a method in which a transfer dye is printed onto paper, and then the printed paper is pressed against the fabric roll with heat at the appropriate temperature to print the design onto the fabric roll. It applies printing technology to textile printing to achieve delicate and realistic effects.

[0010] Hand screen printing is further subdivided into block printing, stencil printing, spray printing, batik printing, hand dyeing, tie dyeing, gravure printing, and vigoureaux printing. Block printing is equivalent to stamping, where patterns are engraved onto wood, rubber, and linoleum boards and then dye is embedded in them, and is considered the oldest printing method in the history of textile printing.

[0011] Stencil printing is a method of printing in which a desired motif is cut out using a knife or scissors, the cut-out stencil is placed on a piece of fabric, and dye is scraped off to reveal the pattern, or the pattern is applied by spraying.

[0012] Spray printing is a printing method that involves placing a stencil with a desired motif onto a piece of fabric and sprinkling dye onto it; drawing a desired motif with dyes containing reducing agents or repulsive agents and then spraying different colors onto it to create a pattern; or spraying various colors onto the entire piece of fabric using a sprayer.

[0013] Batik printing refers to a method primarily practiced by Javanese people by hand. It involves drawing motifs on fabric using lead, wax, paraffin, etc., then applying dye, and finally bending and folding the fabric regularly or irregularly to create a crackling effect, resulting in a printing technique that excels in creating a cracked effect.

[0014] As mentioned above, in the case of bolts of fabric used for textiles, it is possible to process them into bolts of fabric with desired colors and shapes using the various printing methods described above. However, because the patterns produced by such printing methods are two-dimensional, they are limited in their ability to realize the aesthetic appeal of textiles. There is a need for methods to overcome the problem of only being able to obtain a two-dimensional aesthetic and to produce textiles that exhibit more diverse and three-dimensional patterns.

[0015] Conventional techniques for creating such a three-dimensional effect typically involve adding stone particles to a fabric to generate a three-dimensional pattern, or by printing a fabric that already has a three-dimensional effect.

[0016] However, conventional printing methods that impart such a three-dimensional effect have limitations in their applicability to inkjet printing, transfer printing, and the increasingly widely used digital textile printing. As a result, there is a growing demand for printing materials that can impart a three-dimensional effect using methods different from those used previously. [Prior art documents] [Patent Documents]

[0017] [Patent Document 1] Korean Published Patent No. 10-2005-0016796 (Publication Date: 2005.02.21) [Patent Document 2] Korean Published Patent No. 10-2009-0133031 (Publication Date: 2009.12.31) [Overview of the project] [Problems that the invention aims to solve]

[0018] The object of the present invention is that existing printing materials using silicone only have a planar aesthetic effect, have a problem of being hard to the touch and having no or insufficient elasticity, but by applying a pile-type, pile-type raised foamed silicone resin of a specific composition that can improve this as a printing material, a printing material that can impart characteristics such as a three-dimensional effect due to a velvet effect, a glittery appearance, and an improved soft touch to the printed matter subjected to printing treatment thereby, and a printed matter subjected to printing treatment using the same are to be provided.

Means for Solving the Problems

[0019] The present invention for achieving the above object relates to a raised foamed silicone resin composition for printing, and includes a silicone resin, a foaming agent, and a carbomer.

[0020] Further, the present invention relates to a printing agent containing a mixture (raised foamed silicone resin) of the raised foamed silicone resin composition.

[0021] Further, the present invention relates to a printed matter subjected to printing treatment using the above printing agent.

[0022] Further, the present invention relates to a printing method using the above printing agent.

Effects of the Invention

[0023] The raised foamed silicone resin for printing of the present invention has the property of foaming when heat-treated at a specific temperature and forming a raised portion in the form of a soap bubble. However, the printing agent applying this as a printing material can impart a velvet effect, reflect light to impart a glittery effect (or hiding power), the printing height can be increased by more than twice to reduce the number of printing times and significantly reduce the manufacturing cost of the printed matter, the coloring power of the color former in the printing agent is good, not only can color expression be achieved using a small amount of pigment, but the formed printed portion has an excellent soft touch while also having excellent elasticity.

Brief Description of the Drawings

[0024] [Figure 1a]It is a conceptual diagram of the foaming and bulging forms of the embossed foamed silicone resin for printing before and after heat treatment according to the present invention. [Figure 1b] It is a cross-sectional photograph confirming the foaming and bulging states of the embossed foamed silicone resin produced in Example 1 before and after heat treatment. [Figure 2] It is a photograph of the surface of the printed fabric subjected to the printing process carried out in Production Example 1. [Figure 3] It is a photograph of the surface of the printed fabric subjected to the printing process carried out in Production Example 2. [Figure 4] It is a photograph of the surface of the printed fabric subjected to the printing process carried out in Production Example 3.

Modes for Carrying Out the Invention

[0025] The term "velvet effect" used in the present invention means having a suede leather or suede texture both visually and tactilely.

[0026] Hereinafter, the present invention will be described in more detail.

[0027] The silicone resin composition for printing of the present invention, as a pile-type embossed foamed resin, contains a silicone resin (main resin), a foaming agent, and a carbomer, preferably 9.7 to 20% by weight of the foaming agent, 0.3 to 1.0% by weight of the carbomer, and the remaining balance of the silicone resin out of 100% by weight, more preferably 12.0 to 17.0% by weight of the foaming agent, 0.4 to 0.9% by weight of the carbomer, and the remaining balance of the silicone resin out of 100% by weight.

[0028] As the foaming agent in the silicone resin composition for printing, it contains C1 - C4 alcohols, preferably C1 - C​​​Furthermore, if the foaming agent content in the silicone resin for printing is less than 9.7% by weight, the suede texture effect will be insufficient. If the foaming agent content in the silicone resin for printing exceeds 20.0% by weight, the foaming force will be too high, causing the raised areas to easily collapse, and the viscosity of the resin will be too high, potentially resulting in poor miscibility and dispersibility of the components within the resin. Therefore, it is appropriate to use the resin within the aforementioned range.

[0030] In the composition of the silicone resin for textile printing, the carbomer plays a role in viscosity adjustment. If the carbomer content in the silicone resin for textile printing is less than 0.4% by weight, the content is too low, resulting in no viscosity adjustment effect or insufficient carbomer content. If the carbomer content exceeds 1.0% by weight, there is a possibility of reduced miscibility with other components of the textile printing agent. Therefore, it is appropriate to use it within the above range.

[0031] Furthermore, the silicone resin, which is the main resin in the silicone resin composition for textile printing, contains vinyl-terminated polydi(C1-C3 alkyl)siloxane and silicon dioxide, preferably vinyl-terminated polydi(C1-C2 alkyl)siloxane and silicon dioxide, and more preferably vinyl-terminated polydimethylsiloxane and silicon dioxide.

[0032] The silicon dioxide in the silicone resin can have an average particle size of 200 nm to 3,000 nm, preferably 400 nm to 2,000 nm. However, if silicon dioxide with an average particle size of 200 nm is used, the silicone resin for printing or the printing agent containing it may foam overall during heat treatment, resulting in a problem where the regular foaming and raised bumps intended for production are not formed. Conversely, if the average particle size of silicon dioxide exceeds 3,000 nm, there is a problem where the bumps are formed excessively randomly. Therefore, it is appropriate to use silicon dioxide with a particle size within the above range.

[0033] Furthermore, the silicon dioxide content in the silicone resin is 19 to 26% by weight, preferably 21.0 to 25.0% by weight, and more preferably 21.5 to 24.5% by weight. If the silicon dioxide content in the silicone resin is less than 19% by weight or more than 26% by weight, the raised areas will not be formed uniformly, which may result in insufficient opacity and velvet effect on the printed material. Therefore, it is appropriate to use within the above range.

[0034] Furthermore, the content of vinyl-terminated polydi(C1-C3 alkyl)siloxane in the silicone resin is the remaining amount after removing silicon dioxide from 100% by weight.

[0035] The pile-type raised foamed silicone resin, which is a mixture of the pile-type raised foamed silicone resin composition of the present invention having the above composition, foams and rises during heat treatment at 130 to 180°C, preferably 140 to 180°C, more preferably 145 to 178°C for 5 seconds or less, preferably 2 to 5 seconds, forming raised objects in the form of soap bubbles or the like (see schematic diagram in Figure 1). The degree of foaming and rising can be adjusted by adjusting the composition content in the composition, the heat treatment temperature, time, etc.

[0036] Furthermore, the pile-type raised foamed silicone resin of the present invention can be foamed with a volume increase rate of 30 to 120 times, preferably 60 to 120 times, and more preferably 80 to 115 times.

[0037] The aforementioned pile-type raised foamed silicone resin can be introduced as a printing agent material to impart a velvet effect to the printing agent. The raised areas formed on the printed surface reflect light, creating a sparkling effect and adding a three-dimensional aesthetic. The printing height can be more than doubled, reducing the number of printing cycles and significantly lowering the manufacturing cost of printed materials. Furthermore, the pigments in the printing agent have good color development, and in some cases, color expression is possible even with the use of small amounts of pigment.

[0038] In one preferred embodiment of such a printing agent, the printing agent of the present invention may include the pile-type raised foamed silicone resin, a colorant, and additives.

[0039] The colorant may include one or more selected from pigments and dyes.

[0040] The aforementioned pigment may include one or more selected from neutral pigments and oil-based pigments, and preferably, using neutral pigments is advantageous in that it is environmentally friendly.

[0041] The neutral pigment and / or oil pigment can be any common pigment available in the art.

[0042] Furthermore, the additives may include common additives used in the art, such as fats and sugars, fillers, diluents, curing agents, dispersants, and / or leveling agents, depending on the type of printed material to be manufactured.

[0043] Furthermore, by adjusting the content of pile-type raised foamed silicone resin in the printing agent, it is possible to adjust the three-dimensional aesthetic, suede texture, and opacity of the printed material.

[0044] Using the aforementioned printing agent, various printing processes such as screen printing, roller printing, transfer paper printing, or digital textile printing can be performed.

[0045] The embodiments described herein are for illustrative purposes only and not to limit the technical concept of the present invention, and the scope of the technical concept of the present invention is not limited by such embodiments. The scope of protection of the present invention should be interpreted in accordance with the following claims, and all technical concepts within an equivalent scope should be interpreted as being included within the scope of the present invention.

[0046] [Examples] Example 1: Production of pile-type raised foamed silicone resin A silicone resin was manufactured by mixing 23.0% by weight of silicon dioxide, which has an average particle size of approximately 1,200 nm, and 77.0% by weight of vinyl-terminated polydimethylsiloxane.

[0047] As a foaming agent, a pile-type raised foamed silicone resin was produced by mixing 15.3% by weight of ethanol with a concentration of approximately 100%, 0.62% by weight of carbomer, and the remaining amount of the aforementioned silicone resin from the 100% by weight.

[0048] Examples 2-4 and Comparative Examples 1-4 Pile-type raised foamed silicone resin was produced in the same manner as in Example 1, but each pile-type raised foamed silicone resin having the same composition as shown in Table 1 below was produced, and Examples 2 to 4 and Comparative Examples 1 to 4 were carried out, respectively.

[0049] Example 6 A pile-type raised foamed silicone resin was produced in the same manner as in Example 1, but propanol at a concentration of approximately 100% was used as the foaming agent instead of ethanol.

[0050] [Table 1] Experimental Example 1: Measurement of Volume Change Rate and Height of Raised Objects

[0051] The pile-type raised foamed silicone resin produced in the above examples and comparative examples was coated onto a woven fabric to a thickness of approximately 0.4 mm, then heat-treated at 170-172°C for 4 seconds. The volume change rate before and after heat treatment was then measured, and the results are shown in Table 2 below.

[0052] Examples 7-8 and Comparative Examples 6-8 in Table 2 below used the pile-type raised foamed silicone resin of Example 1, but the average height and volume change rate of the raised objects formed by foaming and raising under different heat treatment conditions were measured as follows. In this case, the volume change rate was calculated by determining the volume before and after heat treatment based on the average height of the raised objects.

[0053] Figure 1b shows a cross-sectional photograph of the pile-type raised foamed silicone resin of Example 1, where foaming and raising have formed a raised structure. The cross-sectional photograph in Figure 1b was taken at 140x magnification using a video microscope at the request of KOTTI Researcher.

[0054] The surface condition was evaluated through overall tactile and visual observation, including suede texture and coating smoothness (○: Excellent, △: Average, X: Poor).

[0055] [Table 2]

[0056] As can be seen in Table 2 above, the printed materials of Examples 1 to 8 generally showed high elevation formation, a high rate of volume change, and excellent surface condition.

[0057] Using ethanol as a foaming agent compared to propanol in Example 6 tended to be considerably more advantageous in terms of the height and volume change rate of the raised areas.

[0058] Furthermore, in Comparative Example 1, which used a silicone resin that did not contain silicon dioxide, the foaming power decreased, the raised areas were not formed uniformly, and the surface condition was also somewhat poor.

[0059] Furthermore, in Comparative Example 2, where carbomer was not used, a large amount of resin was absorbed into the woven fabric, resulting in the formation of low-height bumps, a small volume change rate, and a significant decrease in suede texture.

[0060] Furthermore, in Comparative Example 3, which used 1.2% by weight of carbomer (more than 1% by weight), the foaming effect was actually reduced compared to Example 3.

[0061] Furthermore, in Comparative Example 4, which used only 9.2% by weight of the foaming agent (less than 9.7% by weight), the height of the raised material and the rate of change in volume were significantly lower compared to Example 4 (12.2% by weight), resulting in an insufficient suede texture effect.

[0062] Furthermore, in Comparative Example 5, which used 20.8% by weight of a foaming agent exceeding 20% ​​by weight, the volume change rate was actually lower compared to Example 5 (17.9% by weight), resulting in a poor surface condition. This was due to excessive expansion and subsequent fracture of raised areas, and the formation of these raised areas was uneven. As a result, the printed surface felt somewhat hard, and the soft texture was greatly reduced.

[0063] Furthermore, in Comparative Example 6, where the heat treatment was performed at 125-127°C, the rate of raised structures was low, their height was low, and the surface condition was also poor.

[0064] In Comparative Example 7, where the heat treatment was performed at 190-192°C, the foaming properties were good, but there was a problem with the fabric used as the base material burning, and the raised areas were not formed uniformly, resulting in an uneven texture.

[0065] Furthermore, in Comparative Example 8, where the heat treatment was performed for 6 seconds instead of 5 seconds, the results showed no significant difference from Example 1.

[0066] Manufacturing Example 1: Manufacturing of printing agents and printed printed materials To 100 parts by weight of the pile-type raised foamed silicone resin produced in Example 1, 0.5 parts by weight of the neutral pigment Green1700 (manufacturer: Hanyang Petrochemical) and 3 parts by weight of the curing agent were mixed to produce a printing agent.

[0067] Next, the aforementioned printing agent was applied to a cotton fabric using a screen printing method, then heat-treated at 170°C for 4 seconds, and cooled to produce a printed material with a thickness of approximately 0.4 mm.

[0068] Figure 2 shows a photograph of the printed material after the printing process.

[0069] Manufacturing Example 2: Manufacturing of printing agents and printed printed materials To 100 parts by weight of the pile-type raised foamed silicone resin produced in Example 1, 0.5 parts by weight of the neutral pigment Red1400 (manufacturer: Hanyang Petrochemical) and 3 parts by weight of the curing agent were mixed to produce a printing agent.

[0070] Next, the aforementioned printing agent was applied to a cotton fabric using a screen printing method, then heat-treated at 170°C for 4 seconds, and cooled to produce a printed material with a thickness of approximately 0.4 mm.

[0071] Figure 3 shows a photograph of the printed material after the printing process.

[0072] Manufacturing Example 3: Manufacturing of printing agents and printed printed materials To 100 parts by weight of the pile-type raised foamed silicone resin produced in Example 1, 0.5 parts by weight of the neutral pigment skyblue1604 (manufacturer: Hanyang Petrochemical) and 3 parts by weight of the curing agent were mixed to produce a printing agent.

[0073] Next, the aforementioned printing agent was applied to a cotton fabric using a screen printing method, then heat-treated at 170°C for 4 seconds, and cooled to produce a printed material with a thickness of approximately 0.4 mm.

[0074] A photograph of the printed material after the printing process is shown in Figure 4.

Claims

1. A raised foamed silicone resin composition for printing, comprising 12.2 to 17.9% by weight of a foaming agent, 0.36 to 0.95% by weight of a carbomer, and the remaining amount of silicone resin out of 100% by weight, Colorants and, Additives and, The process involves printing the material to be dyed with a printing agent, followed by heat-treating the material at 150-172°C for 5 seconds or less. Includes, The foaming agent comprises one or more selected from ethanol and propanol. The silicone resin comprises 23% by weight of silicon dioxide and the remaining 100% by weight of vinyl-terminated polydi(C1-C3 alkyl)siloxane. The colorant comprises one or more selected from pigments and dyes. The aforementioned additive comprises one or more selected from fatsucroses, fillers, diluents, curing agents, dispersants, and leveling agents. A method for manufacturing printed materials.

2. The method of the printing process is a screen printing method, a roller printing method, a transfer printing method, or a digital textile printing method. A method for producing a printed material according to claim 1.

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