Filling cotton and preparation method thereof

Abstract

The invention discloses filling cotton and a preparation method thereof. The filling cotton comprises an upper needled surface layer and a lower needled surface layer, wherein a fiber web layer is arranged between the upper needled surface layer and the lower needled surface layer; and the upper needled surface layer, the fiber web layer and the lower needled surface layer are connected with one another through a strip-shaped needled band. The method comprises the following processing steps of: (1) needling raw materials of the upper needled surface layer and the lower needled surface layer by using a needling machine to prepare the upper needled surface layer and the lower needled surface layer; (2) putting raw materials of the fiber web layer into an opener for opening treatment; (3) carding the raw materials opened by the step (2) by using a carding machine to form planar netlike fibers; (4) laying the planar netlike fibers by using a lapping machine to form the fiber web layer and arranging the fiber web layer between the upper needled surface layer and the lower needled surface layer; and (5) needling the strip-shaped needled band by using the needling machine to obtain the filling cotton. The filling cotton is produced by a non-weaving process and can be produced on a large scale through a production line, and the elasticity and flexibility of a produced filling cotton product can meet market demands.

Description

technical field [0001] The invention relates to the field of thermal insulation materials, in particular to a filling cotton and a manufacturing method thereof. Background technique [0002] Traditional filling cotton, such as quilt core, etc., need to sew a cloth cover on the surface to maintain the shape of the filling. The sewing process is not easy to process through an automated production line. It can only be completed by workers manually operating sewing equipment. The production efficiency is low. For To solve this problem, those skilled in the art have proposed the idea of ​​using non-woven technology to make filling cotton, but the acupuncture equipment used in the existing non-woven process will harden the filling cotton and lose its elasticity after needle-punching the filling cotton , cannot be used normally. Contents of the invention [0003] The object of the present invention is to provide a kind of stuffing cotton and its production method, which adopts n...

AI Technical Summary

Problems solved by technology

[0002] Traditional filling cotton, such as quilt core, etc., need to sew a cloth cover on the surface to maintain the shape of the filling. The sewing process is not easy to process through an automated production line. It can only be completed by workers manually operating the sewing equipment. The production efficiency is low. For To solve this problem, those skilled in the art have proposed the idea of ​​using non-woven technology to make filling cotton, but the acupuncture equipment used in the existing non-woven process will harden the filling cotton and lose its elasticity after needle-punching the filling cotton , does not work properly

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