{"id":7469,"date":"2024-08-22T09:59:54","date_gmt":"2024-08-22T01:59:54","guid":{"rendered":"https:\/\/www.textile-fabric.com\/archives\/7469"},"modified":"2024-08-22T09:59:54","modified_gmt":"2024-08-22T01:59:54","slug":"common-dyeing-agents-and-their-properties-in-printing-and-dyeing","status":"publish","type":"post","link":"https:\/\/www.textile-fabric.com\/?p=7469","title":{"rendered":"Common dyeing agents and their properties in printing and dyeing"},"content":{"rendered":"

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\n 1. Acids and bases<\/section>\n<\/section>\n<\/section>\n<\/section>\n

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\n 1) Acid is dissolved in water and will have a light or heavy sour taste. Common acids include: sulfuric acid, glacial acetic acid, oxalic acid, etc. <\/p>\n

\n 2) Alkali has an astringent taste and a smooth feel. Common alkali include: caustic soda, soda ash, baking soda, disodium phosphate, sodium silicate, etc. <\/p>\n

\n 3) The relationship between pH value and acid-base strength<\/p>\n

\n \u2460PH value is divided into 1~14<\/p>\n

\n Small PH value – strong acidity<\/p>\n

\n High PH value – strong alkalinity<\/p>\n

\n PH value=7\u2014Neutral<\/p>\n

\n \u2461The relationship between pH value and acidity and alkalinity can be represented by the following soil:<\/p>\n

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\n \u2462When acid meets alkali, it will neutralize and generate salt and water that are neither acid nor alkali<\/p>\n

\n Such as 2NaOH+H2SO4=Na2SO4+H2O<\/p>\n

\n (Caustic soda) (Yuanming powder)<\/p>\n

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\n 2. Oxidizing agent and reducing agent<\/section>\n<\/section>\n<\/section>\n<\/section>\n

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\n 1) Common oxidants: such as hydrogen peroxide and sodium hypochlorite<\/p>\n

\n 2) Common reducing agents: such as insurance powder and sodium sulfite<\/p>\n

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\n 3. Common additives and their functions<\/section>\n<\/section>\n<\/section>\n<\/section>\n

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\n 1) Penetrating agent: Reduce the surface tension of the solution so that the fiber can be easily wetted and penetrated<\/p>\n

\n 2) Detergent: plays a washing role, making it easy to remove dirt on fabrics, and is often used as a boiling and bleaching aid<\/p>\n

\n 3) Caustic soda (NaOH): a strong alkali, used as a scouring agent for cotton cloth and a stripping aid. After use, it should be neutralized with acid before cleaning<\/p>\n

\n 4) Soda ash (sodium carbonate Na2SiO3): used as water softener, T\/C fabric scouring aid and reactive dye fixing agent<\/p>\n

\n 5) Baking soda (sodium bicarbonate NaHCO3): can be used as a reactive dye fixing agent<\/p>\n

\n 6) Trisodium phosphate: Na3PO4 acts as water softener<\/p>\n

\n 7) Sodium hexaphosphate: acts as water softener<\/p>\n

\n 8) Sodium silicate (Na2SO4): used as a cotton scouring aid and a stabilizer for hydrogen peroxide bleaching<\/p>\n

\n 9) Hydrogen peroxide (H2O2): Bleach, which can bleach fabrics and can also be used as a deoxidizer<\/p>\n

\n 10) Sodium sulfite (Na2S2O3): used as a scouring aid for cotton fabrics to prevent brittleness of cotton fabrics. It can also be used as a residual oxygen neutralizer and dechlorination agent<\/p>\n

\n 11)\ufffdSodium chloride (Na2S): sulfur dye dyeing auxiliary, fully reducing and dissolving sulfurized fuel<\/p>\n

\n 12) Sodium hypochlorite (NaClO): used as a bleaching agent, and can also be used for color stripping and tank cleaning<\/p>\n

\n 13) Table salt (NaCl) or Yuanming powder (Na2SO4): used as a dyeing accelerator for direct reactive dyes sulfur dyes, which can increase the dye uptake percentage of the dye<\/p>\n

\n 14) Insurance powder (NaS2O4): a strong reducing agent, which plays the role of color stripping and reduction cleaning<\/p>\n

\n 15) Dispersant (or diffusing agent): used as a disperse fuel dyeing auxiliary to evenly disperse disperse dyes in the dye liquor to ensure the stability of the dye liquor<\/p>\n

\n 16) Glacial acetic acid (HAC): used as a dyeing auxiliary for disperse dyes to adjust the pH value, and as a neutralizing agent for alkali<\/p>\n

\n 17) Ammonium sulfate [(NH4)2SO4]: used as an anti-alkali agent for disperse dyes, and can also play a role in jumping the pH value<\/p>\n

\n 18) Leveling agent: It can make the dye evenly dyed and achieve the leveling effect<\/p>\n

\n 19) Oxalic acid: can wash away rust spots on fabrics<\/p>\n

\n 20) Fixing agent: (fixing agent Y or M) makes the direct dye firmly adhere to the fiber, thereby improving the dye fastness<\/p>\n

\n 21) Softener: Combined with fibers or adsorbed on the fiber surface, it acts as a wetting agent and improves the feel of the fabric<\/p>\n

\n 22) Pingping plus O: used as a direct, reactive dye leveling agent<\/p>\n

\n 23) Varnish: remove oil stains on fibers<\/p>\n

\n 24) Puffing agent: Puffs the fiber, which helps the material penetrate into the fiber.<\/p>\n

\n 25) Repair agent: makes the fiber absorb color evenly and is conducive to leveling dyeing<\/p>\n

\n 26) Whitening agent: Improve the whiteness of bleached cloth<\/p>\n

\n 27) Defoaming agent: Reduce or remove the foam of the solution<\/p>\n

\n 28) Baking soda: used as a deoxidizer to remove residual oxygen<\/p>\n

\n 29) Taikoo oil: used as a penetrating agent for sulfur dye dyeing. Strong penetrating power can make sulfur black, cloth horse black and soft to the touch<\/p>\n

\n 30) Urea: solubilizer and can also be used as an anti-brittle agent for sulfur dyes<\/p>\n<\/section>\n

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1. Acids and bases 1) Acid is dissolved in water and will have a light or heavy sour taste. Common acids include: sulfuric acid, glacial acetic acid, oxalic acid, etc. 2) Alkali ha…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[46],"class_list":["post-7469","post","type-post","status-publish","format-standard","hentry","category-textile-fabric-news","tag-db"],"_links":{"self":[{"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=\/wp\/v2\/posts\/7469","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7469"}],"version-history":[{"count":0,"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=\/wp\/v2\/posts\/7469\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7469"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7469"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7469"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}