Water-soluble non-woven fabric mask and preparation method thereof
A water-soluble, cloth mask technology, used in non-woven fabrics, pharmaceutical formulations, rayon manufacturing, etc., can solve the problems of low spinning efficiency, difficult to spin forming fibers, unfavorable large-scale production, etc., to improve spinnability. , easy to use, maintenance effect is obvious
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[0054] A preparation method of any one of the above water-soluble non-woven facial masks, comprising the following steps:
[0055] S1. preparing a water-soluble spinning solution comprising polyvinyl alcohol, water-soluble chitosan and hyaluronic acid;
[0056] In step S1, under step temperature conditions of 25-90°C and a stirring rate of 100-300r / min, PVA, water-soluble chitosan, hyaluronic acid and auxiliary materials are added to the solvent water in batches, and mechanically Stir for 1-3 hours to prepare a water-soluble spinning solution.
[0057] Preferably, the preparation process of the mixed spinning solution is: in the process of continuously stirring the solvent water at a stirring rate of 100-300r / min, adding PVA and water-soluble chitosan in sequence, wherein the temperature of the solvent water is controlled at 90°C and below.
[0058] Preferably, after adding the water-soluble chitosan, the temperature in the mixed solution is controlled below 80°C.
[0059] ...
Embodiment 1
[0071] Embodiment 1 of the present invention provides a kind of preparation method of water-soluble non-woven facial mask, comprises the steps:
[0072] S1, preparation of mixed spinning solution: Add PVA, water-soluble chitosan, hyaluronic acid and auxiliary materials to the solvent water in batches under the step temperature condition of 25-90°C and the stirring rate of 300r / min, and carry out Mechanically stirring for 2.5 hours to prepare a mixed spinning solution;
[0073] In the mixed spinning solution, the preparation of each component is by mass percentage as follows:
[0074]
[0075] The specific process of preparation is:
[0076]S11, in the process of continuously stirring the solvent water at a stirring rate of 300 r / min, add PVA and water-soluble chitosan in sequence, wherein the temperature of the solvent water is controlled at 90° C. or below.
[0077] S12, after adding the water-soluble chitosan, the temperature in the mixed solution is controlled below 80...
Embodiment 2-6 and comparative example 1-4
[0082] The difference from Example 1 lies in: the raw material preparation ratio and the settings of the centrifugal spinning process are different, as shown in Table 1 below.
[0083] Table 1 embodiment 1-7 and the process parameter and test result of comparative example 1-4
[0084]
[0085]
[0086] The electron micrograph of the water-soluble non-woven facial mask that embodiment 1 prepares is as figure 1 shown. from figure 1 with Image 6 It can be seen from the figure that the diameter distribution of the ultrafine fibers of the water-soluble non-woven mask prepared in Example 1 is uniform, mainly concentrated in the fiber fineness of about 9-10um, and the fiber diameter is distributed in the range of 0.5-14μm.
[0087] The electron micrograph of the water-soluble non-woven facial mask that embodiment 2 prepares is as figure 2 shown. from figure 2 with Figure 7 It can be seen from the figure that the diameter distribution of the ultrafine fibers of the wa...
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