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A kind of polycarboxylic acid formaldehyde-free non-ironing fabric whitening liquid and its application
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A non-ironing fabric and whitening solution technology, which is applied in textiles and papermaking, can solve the problem of low whiteness enhancement value, and achieve the effect of high whiteness enhancement value and low cost
Active Publication Date: 2018-12-04
DONGHUA UNIV
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is to provide a polycarboxylic acid formaldehyde-free non-ironing fabric whitening solution and its application. Low problem, providing a whitening method using cationic fluorescent whitening agent to obtain high-white polycarboxylic acid formaldehyde-free non-iron finishing products
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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Embodiment 1
[0035] Whitening process of cationic fluorescent whitening agent by dip dyeing method
[0036] The whitening solution is made by physically mixing the components of the following concentrations:
[0039] Component 3 polyethylene softener Adalin NI 1g / l
[0040] The rest is water.
[0041] Bath ratio 1:20
[0042] Process flow: adjust the pH of the whitening solution to 3.5 with oxalic acid, bathe the fabric at 40°C, raise the temperature to 95°C for 30 minutes, keep it warm for 35 minutes, wash and dry.
Embodiment 2
[0044] Pad-steam whitening process of cationic fluorescent whitening agent
[0045] The whitening solution is made by physically mixing the components of the following concentrations:
[0050] Technological process: adjust the pH value of the finishing solution to 4.0 with formic acid, dipping and rolling twice (rolling rate: 80%), steaming (102°C×20min, humidity: 40-45%), washing and drying.
Embodiment 3
[0052] Whitening process of cationic fluorescent whitening agent by padding-drying method
[0053] The whitening solution is made by physically mixing the components of the following concentrations:
[0056] Component 3 polyethylene softener Adalin NI 1g / l
[0057] The rest is water.
[0058] Technological process: adjust the pH of the finishing solution to about 3.5 with oxalic acid, dip twice and roll twice (surplus rate: 80%), and dry with hot air (110°C×2min).
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whiteness
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Abstract
The invention relates to polycarboxylic acid formaldehyde-free non-ironing fabric whitening liquid and application thereof. The whitening liquid comprises a cationic fluorescent whitening agent, a penetrating agent, a softening agent and water. According to the application, the polycarboxylic acid formaldehyde-free non-ironing fabric whitening liquid is used as finishing liquid for after-whitening processing on a polycarboxylic acid formaldehyde-free non-ironing fabric. According to the whitening liquid and the application method thereof, cost is low, operation is easy, the obtained polycarboxylic acid formaldehyde-free non-ironing finished product is high in whiteness which can reach 120 or above, the requirement of the market for a high fabric whiteness value can be met, the non-ironing effect is basically not affected, and popularization of a polycarboxylic acid formaldehyde-free non-ironing finishing agent is promoted.
Description
technical field [0001] The invention belongs to the field of whitening liquid and its application, in particular to a polycarboxylic acid formaldehyde-free non-ironing fabric whitening liquid and its application. Background technique [0002] With the enhancement of people's awareness of environmental protection, N-methylolamide non-ironing finishing agents can no longer meet the requirements of the development of ecological textiles because of the problem of formaldehyde. At present, a wide variety of formaldehyde-free non-iron finishing agents have been studied, among which polycarboxylic acid is currently the most promising formaldehyde-free non-ironing finishing agent, but the whiteness of the fabrics treated by it has the problem of low whiteness, which cannot reach high-grade Fabric requirements for whiteness. [0003] In order to obtain high-white polycarboxylic acid formaldehyde-free non-iron finishing products, the method of fluorescent whitening can be used to imp...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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