Three-proofing finishing agent for hard water and preparation method thereof

Abstract

The invention discloses a preparation method of a three-proofing finishing agent for hard water. The three-proofing finishing agent for the hard water is an oil-in-water type high-molecular polymer emulsion, wherein the high-molecular polymer is prepared by emulsifying perfluoroalkylated (methyl) acrylate and (methyl) acrylate through a composite surfactant and then polymerizing by initiating of an initiator. The three-proofing finishing agent is generally that tap water or water from river is diluted to reach a certain concentration during the actual use in a printing and dyeing mill, and the tap water, in particular the water from the river, contains a certain amount of metal ions which influence the stability and the use effect of the three-proofing finishing agent. To solve the abovementioned problem, the three-proofing finishing agent is added with organic acid capable of chelating, the pH can be regulated, and the water quality can be improved, and as a result, the three-proofing finishing agent has a good three-proofing effect in the hard water, and the performance in the actual use is greatly improved.

Description

technical field

[0001] The invention relates to the field of functional finishing agents for textiles, in particular to a three-proof finishing agent for hard water and a preparation method thereof. Background technique

[0002] With the development of society, the demand for functional finishing of textiles is increasing. The surface tension of fabrics can be greatly reduced through three-proof finishing, so that the fabrics can have the function of water repellency, oil repellency and antifouling. At present, in the actual use of the three-proof finishing agent, the water used to configure the three-proof finishing agent has a certain hardness and often contains a certain amount of metal ions, which have a certain effect on the use effect and stability of the three-proof finishing agent. Impact. Therefore, we need a new three-proof finishing agent to solve the existing technical problems. Contents of the invention

[0003] For overcoming above-mentioned shortcoming, th...

Examples

Embodiment 1

[0026] 1) Add 10% perfluoroalkylhexyl acrylate, 15% stearyl acrylate, 0.5% citric acid, 1.2% octadecyltrimethylammonium chloride, 0.8% Pingjiao O-15 , heat up to 50°C, add 71.5% deionized water dropwise, disperse at high speed for 30 minutes, homogenize both sides under 20 kg pressure and 30 kg pressure respectively, and at the same time, high speed shear, fully stir evenly to prepare a pre-emulsion;

[0027] 2) dissolving 0.1% azobisisobutylamidine hydrochloride into a mass fraction of 10% initiator aqueous solution with deionized water, the mass fraction of the initiator aqueous solution accounting for the three anti-finishing agent for hard water is 1 %;

[0028] 3) In a nitrogen atmosphere, mix 25% of the pre-emulsion prepared in the step S1 with 30% of the aqueous initiator solution prepared in the step S2, and keep warm at 80° C. for half an hour to obtain a seed emulsion;

[0029] 4) Under a nitrogen atmosphere, add the remaining pre-emulsion and the remaining aqueous ...

Embodiment 2

[0032] 1) 15% perfluoroalkyl hexyl acrylate, 10% stearyl acrylate, 0.5% hydroxyethylidene diphosphonic acid, 1% octadecyltrimethylammonium chloride, 1% flat Add O-15, heat up to 50°C, add 70.5% deionized water dropwise, disperse for 30 minutes under high-speed shearing, homogenize both sides under 20 kg pressure and 30 kg pressure respectively, and simultaneously high-speed shearing, fully stir, and prepare the prepared Lotion;

[0033] 2) dissolving 0.1% azobisisobutylamidine hydrochloride into a mass fraction of 10% initiator aqueous solution with deionized water, the mass fraction of the initiator aqueous solution accounting for the three anti-finishing agent for hard water is 1 %;

[0034] 3) In a nitrogen atmosphere, mix 25% of the pre-emulsion prepared in the step S1 with 30% of the aqueous initiator solution prepared in the step S2, and keep warm at 80° C. for half an hour to obtain a seed emulsion;

[0035] 4) Under a nitrogen atmosphere, add the remaining pre-emulsi...

technical field

[0001] The invention relates to the field of functional finishing agents for textiles, in particular to a three-proof finishing agent for hard water and a preparation method thereof. Background technique

[0002] With the development of society, the demand for functional finishing of textiles is increasing. The surface tension of fabrics can be greatly reduced through three-proof finishing, so that the fabrics can have the function of water repellency, oil repellency and antifouling. At present, in the actual use of the three-proof finishing agent, the water used to configure the three-proof finishing agent has a certain hardness and often contains a certain amount of metal ions, which have a certain effect on the use effect and stability of the three-proof finishing agent. Impact. Therefore, we need a new three-proof finishing agent to solve the existing technical problems. Contents of the invention

[0003] For overcoming above-mentioned shortcoming, th...

Examples

Embodiment 1

[0026] 1) Add 10% perfluoroalkylhexyl acrylate, 15% stearyl acrylate, 0.5% citric acid, 1.2% octadecyltrimethylammonium chloride, 0.8% Pingjiao O-15 , heat up to 50°C, add 71.5% deionized water dropwise, disperse at high speed for 30 minutes, homogenize both sides under 20 kg pressure and 30 kg pressure respectively, and at the same time, high speed shear, fully stir evenly to prepare a pre-emulsion;

[0027] 2) dissolving 0.1% azobisisobutylamidine hydrochloride into a mass fraction of 10% initiator aqueous solution with deionized water, the mass fraction of the initiator aqueous solution accounting for the three anti-finishing agent for hard water is 1 %;

[0028] 3) In a nitrogen atmosphere, mix 25% of the pre-emulsion prepared in the step S1 with 30% of the aqueous initiator solution prepared in the step S2, and keep warm at 80° C. for half an hour to obtain a seed emulsion;

[0029] 4) Under a nitrogen atmosphere, add the remaining pre-emulsion and the remaining aqueous ...

Embodiment 2

[0032] 1) 15% perfluoroalkyl hexyl acrylate, 10% stearyl acrylate, 0.5% hydroxyethylidene diphosphonic acid, 1% octadecyltrimethylammonium chloride, 1% flat Add O-15, heat up to 50°C, add 70.5% deionized water dropwise, disperse for 30 minutes under high-speed shearing, homogenize both sides under 20 kg pressure and 30 kg pressure respectively, and simultaneously high-speed shearing, fully stir, and prepare the prepared Lotion;

[0033] 2) dissolving 0.1% azobisisobutylamidine hydrochloride into a mass fraction of 10% initiator aqueous solution with deionized water, the mass fraction of the initiator aqueous solution accounting for the three anti-finishing agent for hard water is 1 %;

[0034] 3) In a nitrogen atmosphere, mix 25% of the pre-emulsion prepared in the step S1 with 30% of the aqueous initiator solution prepared in the step S2, and keep warm at 80° C. for half an hour to obtain a seed emulsion;

[0035] 4) Under a nitrogen atmosphere, add the remaining pre-emulsi...