Abstract: The present application provides a glass fiber nozzle structure, bushing and production device. The glass fiber nozzle structure includes a nozzle body and a hole provided on the nozzle body. The hole includes an upper hole portion and a lower hole portion communicated with the upper hole portion and located below the upper hole portion. The lower hole portion has an elongated cross-section. A projection of the lower hole portion is located within a projection of the upper hole portion in a projection on a plane perpendicular to an axis line of the lower hole portion. A length and a width of the lower hole portion have a ratio of 5:1 to 12:1. The glass fiber nozzle of the present application has a simple structure and a long service cycle, and an aspect ratio of flat glass fibers produced by the nozzle structure is maintained between 2.7 and 4.2, thereby effectively improving performance of the flat glass fibers.

Abstract: A cutting and double-face leather integrated dyeing process for Tan sheep skin, which comprises the following steps: cutting?washing with water?retanning?primary dyeing?primary color fixing?secondary dyeing?fatliquoring?secondary color fixing?bleaching?drying?a finished product. Tan sheep skin leather boards and fleeces dyed by the process of the invention have no cross color and color fading with each other, a high color fastness, and uniform dyeing; the prepared Tan sheep skin products such as clothing, etc., not only have the characteristics of a high added value and good practicability, but also can more largely increase product benefits and lower the production cost.

Abstract: The invention relates to the technical field of animal fur processing, and particularly relates to a cutting and double-face leather integrated dyeing process for Tan sheep skin, which comprises the following steps: cutting?washing with water?retanning?primary dyeing?primary colour fixing?secondary dyeing?fatliquoring?secondary colour fixing?bleaching?drying?a finished product. In the process of the invention, the third-grade Tan sheep skin which does not reach a superior quality is selected and subjected to cutting treatment and then double-face leather integrated dyeing; after the dyeing has been completed, the leather board has softness, good fullness and elongation, substantially uniform thickness, and no phenomena such as stiff board and swelling board occur; the fleece is smooth, flexible and loose and clean with complete needle velvet, and no phenomena such as serious fur shedding, oily fur and fur twisting occur.