Unlock instant, AI-driven research and patent intelligence for your innovation.

Synthetic fiber with addition of natural material and method of its production

A natural material and synthetic fiber technology, applied in the direction of fiber chemical characteristics, single-component synthetic polymer rayon, rayon manufacturing, etc., can solve the problems of low effectiveness of natural materials, achieve excellent thermal insulation properties, eliminate odor, tactile effect

Pending Publication Date: 2021-01-12
BJV RES SRO
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the known method is the low effectiveness of the use of natural materials, which degrade during the production process and show themselves only to a small extent on the surface of the synthetic fibers in the resulting form

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Synthetic fiber with addition of natural material and method of its production
  • Synthetic fiber with addition of natural material and method of its production
  • Synthetic fiber with addition of natural material and method of its production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] in accordance with the attached Figures 2 to 4 In this example, 6 kinds of polyamide PA were used as basic synthetic materials; they accounted for 90% of the volume of the material of synthetic fibers 1 obtained. In the mill, the cellulose is ground or crushed, and the particles 2 with a size of 8 to 12 μm are selected from the crushed mass on a sieve. The size of the particle 2 in the range of 8 to 12 μm corresponds to the length L; the width W of the particle 2 is in the range of 4 to 9 μm, which is 25% to 75% of the length of the particle 2 .

[0036] Granules 2 of the natural material were added to the molten synthetic material with an amide wax of the N,N-bis-stearyl-ethylenediamine type (in this example Licowax C brand) at 2.5% by volume as a dispersion agent.

[0037] The density of the mixture in cold state is 1.12g / cm 3 . The mixture of granules 2 of synthetic material and natural material is mixed in a mixer for at least 5 minutes, preferably 15 minutes. ...

Embodiment 2

[0039] The mixture in this example comprises 92% by volume of polypropylene and 2.5% by mass of particles 2 of a natural material, which in this example is cellulose. Particles 2 have a size of 10–15 μm.

[0040] The preparation and production method of the mixture is similar to Example 1. The density of the mixture in cold state is 0.91g / cm 3 . A linear reactive polydimethylsiloxane (brand Tegomer E 525 in this example) at 5.5% by volume was used as modifier. The synthetic fiber 1 is stretched to 3.5-4.0 dtex.

[0041] Pellets 2 of natural material are poured into a flowing molten mass of polypropylene PP and modifiers are added. The mixture was transferred (pumped) from the container using a round ground plan. The nozzles are distributed in a single plane along the circumference of the container up to its bottom, and they are oriented radially towards the interior of the container opposite each other. The molten material flows through the nozzle into the container, whe...

Embodiment 3

[0043] The mixture comprises 93% by volume of polypropylene PP and 2% by mass of particles 2 of a natural material, which in this example is cellulose. Particle 2 has a size of 5–8 μm.

[0044] The preparation and production method of the mixture is similar to Example 1. The density of the mixture in cold state is 0.92g / cm 3 . A linear reactive polydimethylsiloxane (brand Tegomer E 525 in this example) at 5% by volume was used as modifier. Synthetic fibers 1 are stretched to 2.5 decitex.

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
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
sizeaaaaaaaaaa
Login to View More

Abstract

The volume content of the natural material in the resulting volume of the synthetic fiber (1) ranges from 0.5% to 45%. The natural material is milled into the form of particles (2) which have irregular shape with length differing from the width, whereby length (L) of the particle (2) of the natural material has a value ranging from 10% to 120% of the diameter of the synthetic fiber (1) and the width (W) of the particle ranges from 25% to 75 % of the length (L) of the particle (2). At the same time the width (W) of the particle (2) does not surpass 50% of the cross-sectional diameter (D) of thesynthetic fiber (1). Hemp, jute, linen, cotton, sisal, kenaf, wood, cellulose, lignocellulose, coconut, nut shells, starch, wheat, zeolite can be used as a natural material. The basic synthetic polymer component includes at least one thermoplastic polymer, for example polyolefin, such as polyethylene PE or polypropylene PP. Before the fiberization the natural material in form of milled particles(2) is added into the melt and subsequently the mixture of the synthetic polymer and particles (2) of the natural material are mixed at least for 5 minutes.

Description

technical field [0001] The present invention relates to a method of intercalating or adding natural materials during the production of synthetic fibers which achieves new properties of synthetic fibers and fabrics produced from such fibers. Synthetic fibers added with natural materials are themselves also the subject of the invention. Background technique [0002] Synthetic fibers based eg on polyester, polyamide, polypropylene are used in the textile industry; they have excellent thermal insulation properties, they are light and inexpensive. Fabrics woven with synthetic fibers feel artificial to the touch, they are electrostatically charged and can cause allergic skin reactions. Efforts to simulate natural fibers such as cotton, wool, linen, silk have resulted in the addition of natural fibers to base synthetic materials. Synthetic fibers are produced under conditions that are not conducive to maintaining the properties of natural fibers. High temperatures and pressures ...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): D01F1/10
CPCD01F1/10D01F6/06D01F6/60D01F6/62C08L23/12D01F1/02C08L77/02C08L1/02C08L91/06C08L83/04C08L97/02D01F6/18
Inventor B·加斯J·托玛斯V·科可斯
Owner BJV RES SRO