Titanium white for dry acrylic spinning delustering its preparing method

Abstract

The present invention discloses a kind of titanium white powder for extinction in dry spinning acrylic fiber and its preparation process. The titanium white powder is prepared with anatase type titanium white as material and through pulping, sanding milling, grading, purifying and other steps to eliminate coarse grains and impurity ions, coating with compact Al2O3 to obtain high weather resistance, water washing and coating with organic material. It has excellent dispersivity in spinning solution for dry spinning acrylic fiber and is used for extinction. It can result in excellent filtering performance and spinnability, low end breakage, high tow strength, high whiteness and high dyeability.

Description

technical field

[0001] The invention belongs to the technical field of chemical fiber titanium dioxide, and relates to a titanium dioxide for dry-process acrylic fiber spinning and matting and a preparation method thereof. Background technique

[0002] Chemical fiber has high transparency and gloss. During the fiber production and processing process, a certain amount of titanium dioxide is often added to make use of the high light scattering and hiding power of titanium dioxide to make the fiber matte and obtain better dyeability and opacity. , Appearance and feel etc.

[0003] Titanium dioxide, scientific name titanium dioxide (TiO 2 ), is a widely used white pigment with three crystal forms: rutile, anatase and brookite. Titanium dioxide for chemical fiber matting, referred to as chemical fiber titanium dioxide, generally uses anatase titanium dioxide with lower hardness.

[0004] Chemical fiber titanium dioxide is an important class of fine chemical products, the produ...

Images