Watermark-free heat transfer printing adhesive
A thermal transfer and watermark technology, applied in the direction of adhesives, adhesive types, unsaturated alcohol copolymer adhesives, etc., can solve the problems of increasing production costs, difficult cleaning, affecting the appearance, and incomplete transfer patterns.
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Embodiment 1
[0030] The process formula of the present invention is: water 1000kg; polyvinyl alcohol 0588 is 100kg; polyvinylpyrrolidone 25kg; boric acid 3kg; acrylamide 50kg; ammonium persulfate 0.06kg; sodium bisulfite 0.06kg; Sodium alkylbenzene sulfonate 3.3kg; Sorbitan monostearate 3.3kg; Alkylphenol polyoxyethylene ether 3.3kg.
[0031] Its process operation steps are as follows:
[0032] Step 1: Dissolution and Crosslinking
[0033] Add 890kg of water, 100kg of polyvinyl alcohol 0588, 25kg of polyvinylpyrrolidone, and 3kg of boric acid into a 1.5-ton reactor with a stirrer, heat up and dissolve, and keep warm at 80°-85°C for 1.5 hours until completely dissolved. , boric acid has completed the cross-linking reaction with polyvinyl alcohol, but has no effect on dissolution.
[0034] Step 2: Polymerization
[0035] When the temperature is lowered to 52°-54°C, add 50kg of acrylamide and 100kg of water to make a liquid at one time, mix for 10-30 minutes, then add the ammonium persulfa...
Embodiment 2
[0041] The process formula of the present invention is: water 1000kg; polyvinyl alcohol 0588 is 120kg; polyvinylpyrrolidone 25kg; boric acid 3.5kg; acrylamide 35kg; ammonium persulfate 0.08kg; sodium bisulfite 0.08kg; Sodium dialkylbenzene sulfonate 3.2kg; Sorbitan monostearate 3.2kg; Alkylphenol polyoxyethylene ether 3.2kg.
[0042] Its process operation steps are as follows:
[0043] Step 1: Dissolution and Crosslinking
[0044] Add 890kg of water, 120kg of polyvinyl alcohol 0588, 25kg of polyvinylpyrrolidone, and 3.5kg of boric acid into a 1.5-ton reactor with a stirrer, heat up and dissolve, and keep warm at 80°-85°C for 1.5 hours until completely dissolved. At the same time, boric acid has completed the cross-linking reaction with polyvinyl alcohol, but has no effect on dissolution.
[0045] Step 2: Polymerization
[0046] When the temperature is lowered to 52°-54°C, add 35kg of acrylamide and 100kg of water into a liquid at one time, dissolve for 10-30 minutes, then a...
Embodiment 3
[0052] The process formula of the present invention is: water 1000kg; polyvinyl alcohol 0588 is 150kg; polyvinylpyrrolidone 20kg; boric acid 4.5kg; acrylamide 30kg; ammonium persulfate 0.1kg; sodium bisulfite 0.1kg; Sodium dialkylbenzene sulfonate 2kg; sorbitan monostearate 2kg; alkylphenol polyoxyethylene ether 2kg.
[0053] Its process operation steps are as follows:
[0054] Step 1: Dissolution and Crosslinking
[0055]Add 890kg of water, 150kg of polyvinyl alcohol 0588, 20kg of polyvinylpyrrolidone, and 4.5kg of boric acid into a 1.5-ton reactor with a stirrer, heat up and dissolve, and keep warm at 80°-85°C for 1.5 hours until completely dissolved. At the same time, boric acid has completed the cross-linking reaction with polyvinyl alcohol, but has no effect on dissolution.
[0056] Step 2: Polymerization
[0057] When the temperature is lowered to 52°-54°C, add 30kg of acrylamide and 100kg of water into a liquid at one time, dissolve for 10-30 minutes, then add the am...
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