News Details
High performance pigment printing crosslinking agent
2017-5-31 17:14:51
High performance pigment printing crosslinking agent
Pigment printing is through adhesive will paint adhesion on the fiber surface printing process to obtain the required pattern. [1] is characterized by simple printing process, design outline clear, easy to paste modulation, chromatography, short technological process and complete fiber with selective and is suitable for all kinds of fabrics and blended fabric printing.
Pigment printing is not only used for direct printing, can also according to the need for similar dye effect of cover printing, discharge printing can obtain dye printing effect of printing are unable or difficult to obtain. As gold silver printing, three-dimensional printing, pearl printing, extinction simulation printing, flocking printing, printing, etc. [2] adhesive is one of the important components of pigment printing paste.
It for printing product color fastness (friction, scrub, dry fastness, etc.) play a decisive role, and handle, colour and lustre and printing products have a close relationship. After adhesive according to the film-forming effect between the molecular chain can be divided into the crosslinking, crosslinking and self-crosslinking; The components of the monomers, including acrylate copolymer, butadiene polymerization compound, polyvinyl acetate copolymer and polyurethane mixtures, etc. The curing temperature can be classified as low temperature and high temperature.
Currently widely used in acrylate series since the crosslinking adhesive contained N - methylol acrylamide (NMA), the presence of large amounts of free formaldehyde. [3] in recent years, the adhesive is divided again blame environmental protection (including formaldehyde) and environmental protection (addition). [4] environmental protection adhesive has become a new research focus and direction.
This experiment USES formaldehyde-formaldehyde crosslinking agent, and develops an environmentally friendly polyacrylate, which is a high performance self-crosslinking pigment printing adhesive.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine packing： net weight 200KG/ galvanized iron drum (a small cabinet pallet loaded 16 tons), 1000KG/IB barrels (a small cabinet loaded 18 tons or 23 tons of ISOTANK).
Experimental raw materials: printed fabric: plain cotton flat, polyester/cotton (80/20) plain cloth, polyester plain cloth; 8111 red, 8220 yellow, thickener PTF, adhesive, urea; Butyl acrylate (BA), acrylic acid, diisooctyl (EHA), methyl methacrylate (MMA), styrene (ST) and acrylonitrile (AN), the methylacrylic acid (MAA), sodium dodecyl sulfate (K12), urea, OS - 15 [fatty alcohol polyoxyethylene ether (15)], glycerin, ammonia and so on are all industrial products; No aldehyde active monomer and deionized water (homemade).
Preparation. Will be equipped with mixer, reflux condenser pipe, thermometer and four bottles of constant pressure drop funnel put in water bath with temperature control devices, according to the formula to join emulsifier (K12 and OS - 15), (BA, EHA) soft monomer and hard monomer (MMA, ST, AN), stirring up to (80 + 2) ℃, add part of initiator, monomer polymerization in 5 ~ 10 min after the reactor into micro blue translucent liquid as protective colloid.
Then add the pre emulsification of soft monomer and hard monomer, crosslinking monomer (G) MA and active monomer, emulsion mixed reaction of ammonium persulfate nucleation layer of seed emulsion, then add the rest of the monomer and initiator response form the shell, and up to 85 ℃ heat preservation reaction 1 h, add urea and glycerin, after cooling and ammonia adjust pH value to 7 ~ 8, filtering to finished products.
Printing. Mixing - printing (red 8111 5%, 8220 1% medium yellow, thickener PTF 1.8% ~ 2%, adhesive is 25%, urea 0 ~ 0.5%) and dry (100 ~ 105 ℃, 2 min) - > curing (140 ~ 150 ℃, 3 min).
Test: appearance, pH value, viscosity, residual monomer, solid mass fraction, stability, hand feeling are measured by conventional method; Film-forming performance: accurate according to samples from 2 g to clean and dry the surface of the plate, drying under 100 ℃, observe the conjunctival time and color film method (conjunctiva); Free formaldehyde: the GB 18401-2003 test; Dry, wet rubbing fastness: according to ISO 105-x16-2001; Scrubbing fastness: press GB/T 420 to 1990.
Pigment printing adhesive is a polymer which is composed of various organic monomers, and has different skin membrane properties after the monomer polymerization.
Pigment printing is through adhesive will paint adhesion on the fiber surface printing process to obtain the required pattern. [1] is characterized by simple printing process, design outline clear, easy to paste modulation, chromatography, short technological process and complete fiber with selective and is suitable for all kinds of fabrics and blended fabric printing.
Pigment printing is not only used for direct printing, can also according to the need for similar dye effect of cover printing, discharge printing can obtain dye printing effect of printing are unable or difficult to obtain. As gold silver printing, three-dimensional printing, pearl printing, extinction simulation printing, flocking printing, printing, etc. [2] adhesive is one of the important components of pigment printing paste.
It for printing product color fastness (friction, scrub, dry fastness, etc.) play a decisive role, and handle, colour and lustre and printing products have a close relationship. After adhesive according to the film-forming effect between the molecular chain can be divided into the crosslinking, crosslinking and self-crosslinking; The components of the monomers, including acrylate copolymer, butadiene polymerization compound, polyvinyl acetate copolymer and polyurethane mixtures, etc. The curing temperature can be classified as low temperature and high temperature.
Currently widely used in acrylate series since the crosslinking adhesive contained N - methylol acrylamide (NMA), the presence of large amounts of free formaldehyde. [3] in recent years, the adhesive is divided again blame environmental protection (including formaldehyde) and environmental protection (addition). [4] environmental protection adhesive has become a new research focus and direction.
This experiment USES formaldehyde-formaldehyde crosslinking agent, and develops an environmentally friendly polyacrylate, which is a high performance self-crosslinking pigment printing adhesive.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine packing： net weight 200KG/ galvanized iron drum (a small cabinet pallet loaded 16 tons), 1000KG/IB barrels (a small cabinet loaded 18 tons or 23 tons of ISOTANK).
Experimental raw materials: printed fabric: plain cotton flat, polyester/cotton (80/20) plain cloth, polyester plain cloth; 8111 red, 8220 yellow, thickener PTF, adhesive, urea; Butyl acrylate (BA), acrylic acid, diisooctyl (EHA), methyl methacrylate (MMA), styrene (ST) and acrylonitrile (AN), the methylacrylic acid (MAA), sodium dodecyl sulfate (K12), urea, OS - 15 [fatty alcohol polyoxyethylene ether (15)], glycerin, ammonia and so on are all industrial products; No aldehyde active monomer and deionized water (homemade).
Preparation. Will be equipped with mixer, reflux condenser pipe, thermometer and four bottles of constant pressure drop funnel put in water bath with temperature control devices, according to the formula to join emulsifier (K12 and OS - 15), (BA, EHA) soft monomer and hard monomer (MMA, ST, AN), stirring up to (80 + 2) ℃, add part of initiator, monomer polymerization in 5 ~ 10 min after the reactor into micro blue translucent liquid as protective colloid.
Then add the pre emulsification of soft monomer and hard monomer, crosslinking monomer (G) MA and active monomer, emulsion mixed reaction of ammonium persulfate nucleation layer of seed emulsion, then add the rest of the monomer and initiator response form the shell, and up to 85 ℃ heat preservation reaction 1 h, add urea and glycerin, after cooling and ammonia adjust pH value to 7 ~ 8, filtering to finished products.
Printing. Mixing - printing (red 8111 5%, 8220 1% medium yellow, thickener PTF 1.8% ~ 2%, adhesive is 25%, urea 0 ~ 0.5%) and dry (100 ~ 105 ℃, 2 min) - > curing (140 ~ 150 ℃, 3 min).
Test: appearance, pH value, viscosity, residual monomer, solid mass fraction, stability, hand feeling are measured by conventional method; Film-forming performance: accurate according to samples from 2 g to clean and dry the surface of the plate, drying under 100 ℃, observe the conjunctival time and color film method (conjunctiva); Free formaldehyde: the GB 18401-2003 test; Dry, wet rubbing fastness: according to ISO 105-x16-2001; Scrubbing fastness: press GB/T 420 to 1990.
Pigment printing adhesive is a polymer which is composed of various organic monomers, and has different skin membrane properties after the monomer polymerization.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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