A Spandex Oil Agent with Universal Applicability

Abstract

The invention relates to a polyurethane oil preparation with general applicability. The oil preparation comprises the following components in percentage by weight: 50-67% of mineral oil, 10-20% of dimethicone, 20-40% of modified silicon oil, 1-3% of an antistatic agent, 1-5% of a dispersing agent and 1-10% of a spreading agent, wherein the modified silicon oil is high-carbon alkyl silicon oil of which the carbon number is 12-20 and the molecular weight is 500-3000, wherein the spreading agent is nanometer silicon oil, and the kinematic viscosity of the polyurethane oil preparation at the temperature of 40 DEG C is 7-20 mm2 / s. The spreading agent is added into the oil preparation and is directly acted on the surfaces of polyurethane silks, a uniform spreading effect can be achieved while oiling, the usage effect of the oil preparation is improved, the oil preparation has better applicability for the polyurethane silks with different specifications, and the silks are smooth and astringent but not sticky; at the same time, the spreading agent form a protective isolating layer on the surfaces of the silks, the oil preparation is prevented from being permeated into the inner parts of the silks, and the possibility of breakage and adhesion of the silks in the process of silk returning is reduced.

Description

Technical field

[0001] The invention relates to a dry-process spandex spinning finish, in particular to a spandex finish with universal applicability. Background technique

[0002] Spandex, also known as multi-block polyurethane fiber, is a kind of elastic fiber. It has a strong elasticity with a stretch of up to 500%. It can be restored to its original shape. It is stronger than rubber and more wear-resistant. It is widely used in the clothing industry. Of multiple areas. As the domestic production of spandex and its products continues to grow, higher requirements have been placed on the production and processing technology of spandex. At present, the production of spandex mainly uses dry spinning, and the spandex finish used in the dry spinning process has an important impact on the quality of spandex products. At present, the current status of the use of spandex finishes is that different specifications and chemical compositions of spandex need to use different spandex finis...

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