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Oct 12, 2021
Textile softener classification
The development history of textile softener
Silicone softener originated in the 1950s, and its development has gone through four stages.
The first generation of silicone softener: the mechanical emulsification method is used to emulsify dimethyl silicone oil, but since the silicone oil itself does not contain active groups, it is not fast enough to bind to the fabric and is not washable. The effect of single use is not ideal, so it is rarely used as a softening agent now, but dimethyl silicone oil emulsion is still widely used in other fields, such as: shampoo softener, mold release agent, etc.; hydroxy silicone oil, silicone with hydroxy head Emulsion, under the action of metal catalysis, the softener can form a network crosslink on the surface of the fabric, which enhances the washing resistance, and the stability and softening effect are improved. However, due to the single function, it is easy to "bleach oil and demulsify", etc. Disadvantages, it was replaced by second-generation silicone softeners before industrial application.
The second-generation silicone softener: Ammonia-based modified silicone oil, referred to as amino silicone oil, can be regarded as the product of dimethyl silicone oil with partial methyl groups (including side positions and terminal positions) replaced by amino hydrocarbon groups. In addition to retaining the original hydrophobicity and mold release properties of dimethyl silicone oil, the presence of amino hydrocarbon groups can also give it reactivity, adsorption, lubricity and softness. Therefore, it is used in fabric softening finishing agents and polishing agents. , Coating additives and resin modifiers have been widely used, and become the most used variety in carbon-functional silicone oil.
The third-generation silicone softener: polyether-modified amino silicone oil, which refers to the side-chain type polyether by the hydrosilylation addition reaction of side-chain hydrogen-containing silicone oil, allyl epoxy compound and allyl polyether Ether epoxy silicone oil intermediate, and then organic amine is used to carry out ammonia ring-opening reaction to obtain polyether modified amino silicone oil. After the fabric is treated, it is not only soft and smooth, but also has excellent hygroscopicity.
Fourth-generation silicone softener: block modified silicone oil. It has been greatly improved in softness, washing resistance, elasticity and hydrophilicity, which meets the various needs of users for fabrics, and has become the mainstream direction of the development of silicone softeners.
Textile softener classification
The development history of textile softener
Silicone softener originated in the 1950s, and its development has gone through four stages.
The first generation of silicone softener: the mechanical emulsification method is used to emulsify dimethyl silicone oil, but since the silicone oil itself does not contain active groups, it is not fast enough to bind to the fabric and is not washable. The effect of single use is not ideal, so it is rarely used as a softener now, but dimethyl silicone oil emulsion is still widely used in other fields, such as: shampoo softener, mold release agent, etc.; hydroxy silicone oil, silicone with hydroxy head Emulsion, under the action of metal catalysis, the softener can form a network crosslink on the surface of the fabric, which enhances the washing resistance, and the stability and softening effect are improved. However, due to the single function, it is easy to "bleach oil and demulsify", etc. Disadvantages, it was replaced by second-generation silicone softeners before industrial application.
The second-generation silicone softener: Ammonia-based modified silicone oil, referred to as amino silicone oil, can be regarded as the product of dimethyl silicone oil with partial methyl groups (including side positions and terminal positions) replaced by amino hydrocarbon groups. In addition to retaining the original hydrophobicity and mold release properties of dimethyl silicone oil, amino silicone oil can also give it reactivity, adsorption, lubricity and softness due to the presence of amino hydrocarbon groups. , Coating additives and resin modifiers have been widely used, and become the most used variety in carbon-functional silicone oil.
The third-generation silicone softener: polyether-modified amino silicone oil, refers to the side-chain polyether by the hydrosilylation reaction of side-chain hydrogen-containing silicone oil with allyl epoxy compound and allyl polyether. Ether epoxy silicone oil intermediate, and then use organic amine to carry out the ammonia unraveling reaction to obtain polyether modified amino silicone oil. After the fabric is treated, it is not only soft and smooth, but also has excellent moisture absorption.
Fourth-generation silicone softener: block modified silicone oil. It has been greatly improved in softness, washing resistance, elasticity and hydrophilicity, which meets the various needs of users for fabrics, and has become the mainstream direction of the development of silicone softeners.