Technology for preparing melamine resin essence microcapsule

Abstract

The invention discloses a technology for preparing a melamine resin essence microcapsule. The technology comprises the steps of firstly, regarding a styrene-maleic anhydride copolymer as an emulsifier, regarding essence as a capsule core, regarding melamine resin and polyacrylate as wall materials, and covering the essence through an in-situ polymerization method and an interface polymerization method respectively to prepare the melamine resin essence microcapsule. The technology has the advantages that a safe and environment-friendly preparing method is adopted to prepare a self-adhesive double-wall essence microcapsule, and the solid content of the self-adhesive double-wall essence microcapsule is 35%-38%, 10%-15% higher than that of other self-adhesive double-wall essence microcapsuleson the market. Through the in-situ polymerization method and the interface polymerization method, dual-layer wall building is conducted, the essence encapsulation rate can reach 91%-95%, and product emulsion has high stability. The self-adhesive double-wall essence microcapsule has the self-adhesive performance while maintaining the peculiar advantages of microcapsules, and the cotton fabric finishing technology is simplified. The finished fabric has a good aroma-retaining effect, the fragrance can be retained for 8 months, and after washing is conducted 12 times, the pleasant fragrance can still be maintained.

Description

technical field [0001] The invention belongs to the technical field of textile finishing, and specifically relates to a process for preparing melamine resin essence microcapsules by using low-methyl etherified melamine resin as a wall material and essence as a core material by an in-situ polymerization method. Background technique [0002] With the development of the economy and the improvement of living standards, people's requirements for textiles have undergone great changes. From the past practical type to the decoration, enjoyment, and health care type, textile perfuming conforms to this trend. Because scented textiles have the functions of antibacterial and insect repellent, covering peculiar smell, and making body and mind comfortable, they are generally liked by people. In ancient my country, there was the habit of sewing sachets on clothes; Europe has sprayed perfume on clothes since the Middle Ages as an elegant style, and later, there was a method of incense; fore...

AI Technical Summary

Problems solved by technology

Traditional microcapsule technology usually uses physical methods to prepare various open-cell flavor microcapsules, and then uses adhesives and crosslinking agents to mechanically adhere the microcapsules to fabric fibers, and the fragrance retention time is not long; at the same time Due to the existence of the adhesive, the hand feeling is not good, which affects the comfort when wearing

[0004] However, the fragrance microcapsules sold on the market today often have disadvantages such as low packaging rate of fragrance, low mechanical strength of the capsule wall, short fragrance retention time, low affinity with fabric fibers, and difficult bonding.