Hot-melt pressure-sensitive adhesive for sanitary towel and production method thereof

Abstract

The invention discloses hot-melt pressure-sensitive adhesive for a sanitary towel and a production method thereof. The hot-melt pressure-sensitive adhesive comprises a softener, tackifying resin, a thermoplastic elastomer and an antioxidant, wherein the softener adopts aromatic mineral oil; the tackifying resin adopts one or two in hydrogenated resin and terpene resin; the thermoplastic elastomeradopts a compound of SEBS and SBS. The production method comprises the following steps: increasing the temperature of a reaction container, feeding the softener and increasing the temperature, feedingthe tackifying resin, maintaining the temperature till the tackifying resin is completely dissolved, feeding the thermoplastic elastomer to begin reaction, feeding the residual tackifying resin and antioxidant, feeding polyisobutene, discharging a material after the reaction is accomplished, filtering, cooling and packaging. The hot-melt pressure-sensitive adhesive has the effect that a formed sanitary towel is easy to peel and not easy to transfer, and reduces the residual quantity of the sanitary towel on clothes.

Description

technical field [0001] The invention relates to the field of hot-melt adhesives, more specifically, it relates to a hot-melt pressure-sensitive adhesive for sanitary napkins and a production method thereof. Background technique [0002] Hot melt adhesive is a kind of plastic adhesive. Its physical state changes with temperature within a certain temperature range, but its chemical properties remain unchanged. It is non-toxic and tasteless, and is an environmentally friendly chemical product. Because the product itself is solid, it is easy to pack, transport, store, has no flux, no pollution, and is non-toxic; and it has the advantages of simple production process, high added value, strong bonding strength, and fast speed. [0003] Hot-melt pressure-sensitive adhesive is mainly made of synthetic rubber, resin and rubber oil mixed and heated into a molten state, and then coated on tissue paper, cloth or plastic film and other substrates, and then made into a new type of adhesiv...

AI Technical Summary

Problems solved by technology

[0005] Today's hot-melt pressure-sensitive adhesives are not only used in diapers and other products, but also widely used in women's sanitary napkins. During the use of women's sanitary napkins, sanitary napkins need to be bonded to underwear through hot-melt pressure-sensitive adhesives In order to achieve the effect of fixing the position, after use, when the sanitary napkin is often torn off, it will not be removed cleanly, resulting in some sanitary napkins remaining, resulting in a bad user experience

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