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Natural fiber treatment process

Inactive Publication Date: 2020-04-02
UNIV PONTIFICIA BOLIVARIANA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a way to make modified natural fibers from the leaves of the Aspargaceae family. This is done by adding a softening agent to the fibers after they have been treated with alkaline and bleaching. The resulting fibers have a better feel and are more flexible because they have fewer non-cellulosic components.

Problems solved by technology

However, its use as raw material in the production of base fabrics is limited due to its low fiber fineness and roughness, due to the presence of non-cellulosic components, which does not make it suitable for yarns that may be spun with traditional machinery for the production of base fabrics.
In the extraction and preparation of Aspargaceae family fibers, improper processing can damage fibers to a large extent, resulting in low fiber yield and economic losses.

Method used

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  • Natural fiber treatment process
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  • Natural fiber treatment process

Examples

Experimental program
Comparison scheme
Effect test

example 1

of Fique Fibers

[0029]Fique fibers with a length of 35 mm were cut using a guillotine. The fibers were subject to an alkaline process at 80° C. for 2 hours, using a solution of 666.6 g of potassium hydroxide and 3333.3 ml of water.

[0030]Subsequently, the fibers were rinsed and the bleaching phase was carried out, in which 2918 ml of water, 80 g of caustic soda at a concentration of 90%, 2.0 g of magnesium sulfate, 200 g of antifoam (stearic alcohol) and 800 g of hydrogen peroxide in a concentration of 10% (w / w) were added.

[0031]The solution obtained was taken to a temperature of 80° C., kept for one hour and then the fibers were rinsed 3 times by overflow. Finally, the fiber was subject to a softening process, for which a solution was prepared with 3920 ml of water and 80 g of a siliconized nanoemulsion. This solution was taken to a temperature of 60° C. in order to add the fiber and run it through the process for one hour. The resulting cottonized fiber was dried in an oven at 40° C...

example 2

of Fique Fibers

[0032]Fique fibers with a length of 35 mm were cut using a guillotine. The fibers were subject to an alkaline process at 60° C. for 0.5 hours, using a solution of 222.2 g potassium hydroxide and 3777.7 ml water.

[0033]Subsequently, the fibers were rinsed and the bleaching phase was carried out, in which 2918 ml of water, 80 g of caustic soda at a concentration of 90%, 2.0 g of magnesium sulfate, 200 g of antifoam (stearic alcohol) and 800 g of hydrogen peroxide in a concentration of 10% (w / w) were added.

[0034]The solution obtained was taken to a temperature of 80° C., kept for one hour and then the fibers were rinsed 3 times by overflow. Finally, the fiber was subject to a softening process, for which a solution was prepared with 3920 ml of water and 80 g of a siliconized nanoemulsion. This solution was taken to a temperature of 60° C. in order to add the fiber and run it through the process for one hour. The resulting cottonized fiber was dried in an oven at 40° C. fo...

example 3

of Sisal Fibers

[0035]Sisal fibers with a length of 35 mm were cut using a guillotine. The fibers were subject to an alkaline process at 80° C. for 2 hours, for which a solution of 666.6 g of potassium hydroxide and 3333.3 ml of water was used.

[0036]Subsequently, the fibers were rinsed and the bleaching phase was carried out, in which 2918 ml of water, 80 g of caustic soda at a concentration of 90%, 2.0 g of magnesium sulfate, 200 g of antifoam (stearic alcohol) and 800 g of hydrogen peroxide in a concentration of 10% (w / w) were added.

[0037]The solution obtained was taken to a temperature of 80° C., kept for one hour and then the fibers were rinsed 3 times by overflow. Finally, the fiber was subject to a softening process, for which a solution was prepared with 3920 ml of water and 80 g of a siliconized nanoemulsion. This solution was taken to a temperature of 60° C. in order to add the fiber and run it through the process for 1 hour. The resulting cottonized fiber was dried in an ov...

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Abstract

The invention refers to a natural fiber treatment process in order to enable the fibers to be conditioned for optimal yarn production, and subsequently of base fabrics. The process comprises the stages of an alkaline treatment, bleaching and the addition of a softening agent.

Description

FIELD OF INVENTION[0001]The present invention lies within the textile sector, particularly in processes of natural fiber treatment for different applications.PRIOR ART[0002]At present, the leaves of the Aspargaceae family are considered to be a variety of fibrous plant materials with a high potential for exploitation in the textile industry. Usually, these vegetable materials have a high content of cellulose that may be used in the manufacture of base fabrics for clothing. However, its use as raw material in the production of base fabrics is limited due to its low fiber fineness and roughness, due to the presence of non-cellulosic components, which does not make it suitable for yarns that may be spun with traditional machinery for the production of base fabrics.[0003]With the rise of the study of new applications involving natural coarse fibers, the most recent advances have focused on developing cottonization processes, which refer to the processing of coarse or hard fibers to make...

Claims

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Application Information

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IPC IPC(8): D06L4/70D06L4/40D01C1/02D06L4/15
CPCD06L4/40D06L4/70D01C1/02D06L4/15D01B1/00D01B1/36D01B1/42D06L4/00D06L4/75D06L4/13D06L4/12D06M15/643D06M2200/50
Inventor CASTRO ERAZO, CRISTINA ISABELCORRALES TOBÓN, MARÍA VICTORIAGAÑAN, PIEDAD FELISINDAMANRIQUE HENAO, JORGE ALONSORESTREPO RESTREPO, MARIA CLARASÁNCHEZ RENDÓN, JOHNY ALEJANDROVELEZ ACOSTA, LINA MARÍAZULUAGA, ROBIN OCTAVIO
Owner UNIV PONTIFICIA BOLIVARIANA
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