Biodegradable needling warmth retention flocculus and preparation method thereof

A technology of biodegradation and wadding, applied in the field of non-woven fabrics, can solve the problems of difficult biodegradation and high energy consumption of thermal wadding, and achieve the effects of simple process, reduced chemical gas emissions, and low energy consumption

Inactive Publication Date: 2018-07-27
HENAN INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention proposes a biodegradable needle-punched thermal insulation wadding and its preparation method, which solves the problems of high energy consumption and difficulty in biodegradation of the existing thermal insulation wadding

Method used

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  • Biodegradable needling warmth retention flocculus and preparation method thereof
  • Biodegradable needling warmth retention flocculus and preparation method thereof
  • Biodegradable needling warmth retention flocculus and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A biodegradable needle-punched thermal insulation flake, which is processed from Viloft fiber through carding → cross-lapping → needle-punching.

[0027] The length of the Viloft fiber is 38mm, the linear density is 2.4dtex, and the dry strength is 2.7cN·dtex -1 , wet strength 1.7cN·dtex -1 , Moisture regain 13%, dry elongation 21%, wet elongation 28%.

[0028] (1) Opening and mixing: Use automatic plucking machine or automatic weighing and mixing equipment to open the step fibers, and use multi-bin cotton blending machine or large bin cotton blending machine to mix the fibers after initial opening;

[0029] (2) Carding into a web: The fibers in step (1) are transported to the cotton box for further opening, and the opened fibers are driven by the airflow generated by the fan to pass through the exhaust fence of the lower cotton box to realize the separation of air and fiber while maintaining The horizontal distribution of fiber reserves is uniform, and the output thi...

Embodiment 2

[0036] A biodegradable needle-punched thermal insulation flake, which is processed from Viloft fiber through carding → cross-lapping → needle-punching.

[0037] The Viloft fiber length is 45mm, the linear density is 2.4dtex, and the dry strength is 2.7cN·dtex -1 , wet strength 1.7cN·dtex -1 , Moisture regain 13%, dry elongation 21%, wet elongation 28%.

[0038] (1) Opening and mixing: Use automatic plucking machine or automatic weighing and mixing equipment to open the step fibers, and use multi-bin cotton blending machine or large bin cotton blending machine to mix the fibers after initial opening;

[0039] (2) Carding into a web: The fibers in step (1) are transported to the cotton box for further opening, and the opened fibers are driven by the airflow generated by the fan to pass through the exhaust fence of the lower cotton box to realize the separation of air and fiber while maintaining The horizontal distribution of fiber reserves is uniform, and the output thickness ...

Embodiment 3

[0046] A biodegradable needle-punched thermal insulation flake, which is processed from Viloft fiber through carding → cross-lapping → needle-punching.

[0047] The Viloft fiber length is 51mm, the linear density is 2.4dtex, and the dry strength is 2.7cN·dtex -1 , wet strength 1.7cN·dtex -1 , Moisture regain 13%, dry elongation 21%, wet elongation 28%.

[0048] (1) Opening and mixing: Use automatic plucking machine or automatic weighing and mixing equipment to open the step fibers, and use multi-bin cotton blending machine or large bin cotton blending machine to mix the fibers after initial opening;

[0049] (2) Carding into a web: The fibers in step (1) are transported to the cotton box for further opening, and the opened fibers are driven by the airflow generated by the fan to pass through the exhaust fence of the lower cotton box to realize the separation of air and fiber while maintaining The horizontal distribution of fiber reserves is uniform, and the output thickness ...

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Abstract

The invention provides a biodegradable needling warmth retention flocculus and a preparation method thereof. Viloft fibers are carded into nets; nets are laid in an intersected manner; the laid nets are drawn by the aid of a plurality of rollers; needling is reinforced to form the warmth retention flocculus. By a pre-needling reinforcement method, high-temperature treatment is omitted, and the fibers are intersected each other by the aid of crimp indexes of the fiber and needling friction force, so that fiber nets have a certain strength and keep a certain filling power. The needling reinforcement method is simple in process, energy consumption is low as compared with a hot air reinforcement method, production cost of flocculus products is reduced, chemical gas emission is reduced, and themethod for processing the flocculus is environmentally friendly.

Description

technical field [0001] The invention relates to the field of nonwoven fabrics, in particular to a biodegradable needle-punched thermal insulation flake and a preparation method thereof. Background technique [0002] Most of the thermal insulation flakes are made of synthetic fibers, cotton fibers, silk fibers, down, etc., because the modified synthetic fibers have good heat retention and low price, so they are widely used in thermal insulation flakes. [0003] Synthetic fibers have poor hygroscopicity. When they are used as flocs, they cannot absorb the sweat on the surface of the human body in time. stuffiness. In addition, synthetic fibers have poor moisture release properties. After absorbing moisture in the air or human sweat, they cannot be discharged in time and remain between the fibers, making the flakes feel damp, and greatly reducing warmth retention and comfort. [0004] At present, hot air bonding is often used as a reinforcement method for thermal insulation f...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4258D04H1/4391D04H1/72D04H1/46D06C15/00
CPCD04H1/4258D04H1/4391D04H1/46D04H1/72D06C15/00
Inventor 闫新石素宇娄辉清秦龙威王朔
Owner HENAN INST OF ENG
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