Low-temperature activation bleaching method by using water-soluble metal phthalocyanine
A metal phthalocyanine, low-temperature activation technology, applied in the field of low-temperature activation and bleaching, can solve the problems of immature application, difficult penetration, low production efficiency, etc., and achieve the effect of reducing the pH of the working solution and shortening the stacking time.
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[0035] Example 1
[0036] (1) Preparation of bleaching working solution: 30% H 2 O 2 Dosage: 30g / L; Cobalt tetracarboxyphthalocyanine: 1μmol / L; Dosage of penetrant JFC: 2g / L; Dosage of stabilizer XFA: 2g / L; Use NaOH to adjust the working solution pH=7.
[0037] (2) Padding step: the pure cotton semi-bleached cloth is dipped and rolled two times in a uniform rolling mill with the working fluid prepared in (1) above, and the stripping rate is 95%.
[0038] (3) Steaming step: Steaming temperature is 80°C, steaming time is 1h.
[0039] (4) Washing with water: the above-mentioned steamed cotton fabric is washed twice with hot water at 50°C-80°C, and fully washed with cold water.
Example Embodiment
[0040] Example 2
[0041] (1) Preparation of bleaching working solution: 30% H 2 O 2 Dosage: 30g / L; Cobalt tetracarboxyphthalocyanine: 15μmol / L; Dosage of penetrant JFC: 2g / L; Dosage of stabilizer XFA: 1g / L; Use NaOH to adjust the working solution pH=10.
[0042] (2) Padding step: the pure cotton semi-bleached cloth is dipped and rolled two times in a uniform rolling mill with the working fluid prepared in (1) above, and the stripping rate is 95%.
[0043] (3) Steaming step: Steaming temperature is 80°C, steaming time is 1h.
[0044] (4) Washing with water: the above-mentioned steamed cotton fabric is washed twice with hot water at 50°C-80°C, and fully washed with cold water.
Example Embodiment
[0045] Example 3
[0046] (1) Preparation of bleaching working solution: 30% H 2 O 2 Dosage: 30g / L; Cobalt tetracarboxyphthalocyanine: 15μmol / L; Dosage of penetrant JFC: 2g / L; Dosage of stabilizer MA-AA: 1g / L; Use NaOH to adjust the working solution pH=9.
[0047] (2) Padding step: the pure cotton semi-bleached cloth is dipped and rolled two times in a uniform rolling mill with the working fluid prepared in (1) above, and the stripping rate is 95%.
[0048] (3) Steaming step: Steaming temperature is 80°C, steaming time is 1.5h.
[0049] (4) Washing with water: the above-mentioned steamed cotton fabric is washed twice with hot water at 50°C-80°C, and fully washed with cold water.
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