The combination of material, design, color, brightness, handle, fixed dye on fabric and sharpness of pattern characterizes the quality of printing fabrics. Among then, dye-concentration(K/S) and sharpness are the most influential factors: Kind and concentration of printing thickeners are the determi...
The combination of material, design, color, brightness, handle, fixed dye on fabric and sharpness of pattern characterizes the quality of printing fabrics. Among then, dye-concentration(K/S) and sharpness are the most influential factors: Kind and concentration of printing thickeners are the determinant factors on the K/S and sharpness of pattern. The purposes of this study are: 1) to manufacture the textile pre-treatment paste used for direct textile printing; 2) to incorporate textile in padding process and coating process; 3) to improve the addition quantity and coloring ability of water repellent, which is used for the prevention of excessive ink penetration in textile; and 4) to study the properties of ink-jet textile printing depending on the type of water-soluble inorganic salt, which is used to control the bleeding of ink drops. In this study, the test fabric is made of cotton and polyester, while the stock thickener is made from Na-Alg., mixing thickener (gum paste), mixing thickener (C.M.C : Na-Alg.), etc. The pre-treatment paste is prepared by adding auxiliar agents, which includes water repellent (3%), water-soluble inorganic salt (3%) and urea (4%), into the stock thickener with concentrations of 1%, 3%, 5% and 7%. In order to determine the migration of dye of the pre-treatment fabric treated by this pre-treatment paste, the patterns are printed by using ink-jet printer for fiber. Viscosities and flow properties are respectively measured in terms of the concentrations of stock thickeners. Dye-concentration and sharpness after ink-jet printing are also analyzed in terms of the types of pre-treatment pastes and the types of added auxiliary agents. Obtained results are as follows; 1. Patterns of viscosity changes as a function of time after mixing stock thickeners varied with the kinds and concentrations of thickeners. Viscosity changes of mixing thickener (C.M.C : Na-Alg.) was extreme, but the viscosity of all most were generally constant. 2. Dye-concentration varies with the types of stock thickeners and auxiliary agents. In the case of polyester, when using mixing thickener (C.M.C: Na-Alg.) as the stock thickener, dye-concentration shows a much higher value. 3. No matter using what kind of stock thickener, dye-concentration always increases if the concentration of stock thickener used in pre-treatment paste increases, and tops when the concentration of stock thickener reaches 5%. Dye-concentration depending on the types of water-soluble inorganic salts which are used as auxiliary agents shows the same tendency in the case of cotton, but varies with the types of stock thickeners in the case of polyester. 4. Sharpness varies with the types of stock thickeners and auxiliary agents used in pre-treatment paste. Generally, sharpness shows an increasing tendency when the concentration of stock thickener increases, but would keep almost stable when the concentration of stock thickener reached 5%. Sharpness is more distinct in the case of cotton than in the case of polyester. When using water-soluble inorganic salt as auxiliarly agent, the pre-treatment paste added by Na2SO4 results in more distinct textile and less bleeding of ink drops than that added by NaHCO3 does.
The combination of material, design, color, brightness, handle, fixed dye on fabric and sharpness of pattern characterizes the quality of printing fabrics. Among then, dye-concentration(K/S) and sharpness are the most influential factors: Kind and concentration of printing thickeners are the determinant factors on the K/S and sharpness of pattern. The purposes of this study are: 1) to manufacture the textile pre-treatment paste used for direct textile printing; 2) to incorporate textile in padding process and coating process; 3) to improve the addition quantity and coloring ability of water repellent, which is used for the prevention of excessive ink penetration in textile; and 4) to study the properties of ink-jet textile printing depending on the type of water-soluble inorganic salt, which is used to control the bleeding of ink drops. In this study, the test fabric is made of cotton and polyester, while the stock thickener is made from Na-Alg., mixing thickener (gum paste), mixing thickener (C.M.C : Na-Alg.), etc. The pre-treatment paste is prepared by adding auxiliar agents, which includes water repellent (3%), water-soluble inorganic salt (3%) and urea (4%), into the stock thickener with concentrations of 1%, 3%, 5% and 7%. In order to determine the migration of dye of the pre-treatment fabric treated by this pre-treatment paste, the patterns are printed by using ink-jet printer for fiber. Viscosities and flow properties are respectively measured in terms of the concentrations of stock thickeners. Dye-concentration and sharpness after ink-jet printing are also analyzed in terms of the types of pre-treatment pastes and the types of added auxiliary agents. Obtained results are as follows; 1. Patterns of viscosity changes as a function of time after mixing stock thickeners varied with the kinds and concentrations of thickeners. Viscosity changes of mixing thickener (C.M.C : Na-Alg.) was extreme, but the viscosity of all most were generally constant. 2. Dye-concentration varies with the types of stock thickeners and auxiliary agents. In the case of polyester, when using mixing thickener (C.M.C: Na-Alg.) as the stock thickener, dye-concentration shows a much higher value. 3. No matter using what kind of stock thickener, dye-concentration always increases if the concentration of stock thickener used in pre-treatment paste increases, and tops when the concentration of stock thickener reaches 5%. Dye-concentration depending on the types of water-soluble inorganic salts which are used as auxiliary agents shows the same tendency in the case of cotton, but varies with the types of stock thickeners in the case of polyester. 4. Sharpness varies with the types of stock thickeners and auxiliary agents used in pre-treatment paste. Generally, sharpness shows an increasing tendency when the concentration of stock thickener increases, but would keep almost stable when the concentration of stock thickener reached 5%. Sharpness is more distinct in the case of cotton than in the case of polyester. When using water-soluble inorganic salt as auxiliarly agent, the pre-treatment paste added by Na2SO4 results in more distinct textile and less bleeding of ink drops than that added by NaHCO3 does.
주제어
#디지털 프린팅 텍스타일
※ AI-Helper는 부적절한 답변을 할 수 있습니다.