Transparent printing technology through macromolecule polyurethane
A printing process, polyurethane technology, applied in the field of transparent printing, can solve the problems of not being suitable for long-term storage, many independent components, etc., and achieve the effect of high market acceptance rate, fabric performance retention and high transparency
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Embodiment 1
[0018] A transparent printing process utilizing polymer polyurethane of the present invention comprises in sequence: scraping printing printing paste, pre-baking, baking, alkali treatment, washing, drying, softening finishing, and setting drying.
[0019] In the transparent printing paste process, the treatment agents used are: Qingdao Feilongyuan multifunctional enhancer NANO PU 86% (mass fraction) and Qingdao Chenxintai Luxol F-HIT 14% (mass fraction).
[0020] The printing machine pressure is 2.5KGf / cm 2 .
[0021] In the baking process, the baking temperature is 160° C., and the baking time is 90 s.
[0022] The alkali treatment process adopts 150g / L sodium hydroxide solution for 300s.
[0023] The soft finishing process adopts 3.25g / L Suzhou Liansheng smooth silicone oil 6970 and 6.75g / L Suzhou Liansheng smooth silicone oil 6973.
experiment example
[0025] Experimental cloth: C 60×60 90×80
[0026] C 40×40 96×96 (whitening)
[0027] Experimental aids: multifunctional enhancer NANO PU (Qingdao Feilongyuan), adhesive 8602 (Suzhou Liansheng), analytical pure sodium hydroxide (Yantai Shuangshuang), Luxol F-HIT (Qingdao Chenxintai), 1552 (Shanghai Shangxian), 1553 (Shanghai Shangxian), transparent wrinkling pulp PUD (Turner), transparent printing paste FS-417M (Liaoning Star), DY-TM (Foshan Davidson), smooth silicone oil 6970 (Suzhou United Sheng), smooth silicone oil 6973 (Suzhou Liansheng), softening agent XY-8807 (Binzhou Maples)
[0028] Experimental equipment: Automatic printing scraping machine (Huafang Co., Ltd.), OVEN R-1 thermal cycle oven (Xiamen Ruibi), air-compressed air-film horizontal pad dyeing test machine (Xiamen Ruibi), NDJ-8S digital viscometer (Shanghai Precision Instrument Co., Ltd.)
[0029] Test items: sample transparency, feel, wrinkle
experiment example 1
[0031] Selection Experiment of Transparent Printing Paste Auxiliaries
[0032] Test process: semi-finished product→scraping printing paste→drying→baking→alkali treatment→washing→drying→soft finishing→setting and drying. Under the condition of keeping other conditions uniform, the auxiliaries used in transparent printing pastes were screened. Please refer to Table 1 for the specific process.
[0033] Table 1 Transparent printing paste process
[0034]
[0035] Due to the low viscosity of the printing paste, serious penetration of the cloth surface after printing, and uneven treatment of the cloth surface, Luxol F-HIT was used to increase the viscosity of the printing paste. Through cloth sample comparison, Luxol F-HIT14% (mass fraction), printing paste viscosity 8000mpa.s, printing machine pressure 2.5KGf / cm 2 The printing effect is the best under the process conditions.
[0036] (1) 80-mesh flat screen was used for printing paste during the test.
[0037] (3) By compar...
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