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Fiber blend, spun yarn, textile material, and method for using the textile material

a technology of fiber blend and textile material, which is applied in the directions of yarn, dyeing process, transportation and packaging, etc., can solve the problems of increasing the cost of fabrics, limiting the use of existing fabrics, and insufficient flammability performance of many cellulosic flame resistant fabrics to meet the demands of certain industries

Inactive Publication Date: 2013-07-25
MILLIKEN & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention provides a fiber blend comprising a combination of cellulosic fibers and synthetic fibers made of a polyoxadiazole polymer. The polyoxadiazole polymer has specific repeating units that make the fiber blend effective at protecting against infrared radiation and reducing risks from arc flashes. The technical effects of this patent include improved protection against infrared radiation, reduced risks from arc flashes, and improved safety for individuals in potentially dangerous environments.

Problems solved by technology

Notwithstanding the popularity of cellulosic or cellulosic-blend flame resistant fabrics, existing fabrics do suffer from limitations.
The flammability performance of many cellulosic flame resistant fabrics is not sufficient to meet the demanding requirements of certain industries.
In order to meet these requirements, inherent flame resistant fibers (e.g., meta-aramid fibers, such as NOMEX® fiber from E. I. du Pont de Nemours and Company) are often employed, which increases the cost of the fabrics.

Method used

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  • Fiber blend, spun yarn, textile material, and method for using the textile material
  • Fiber blend, spun yarn, textile material, and method for using the textile material
  • Fiber blend, spun yarn, textile material, and method for using the textile material

Examples

Experimental program
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first embodiment

[0021]In a first embodiment, the invention provides a fiber blend comprising a plurality of cellulosic fibers and a plurality of first synthetic fibers, the first synthetic fibers comprising a polyoxadiazole polymer. The fibers in the fiber blend preferably are intimately blended so that each different fiber type is substantially evenly distributed throughout the fiber blend.

[0022]As noted above, the fiber blend of the invention comprises cellulosic fibers. As utilized herein, the term “cellulosic fibers” is used to refer to fibers composed of, or derived from, cellulose. Examples of suitable cellulosic fibers include cotton, rayon, linen, jute, hemp, cellulose acetate, and combinations, mixtures, or blends thereof. Suitable types of rayon include flame retardant rayon (FR rayon), which is a rayon fiber having a flame retardant compound (e.g., an organophosphorous compound) incorporated therein. FR rayon is available from many sources, such as Lenzing AG. Preferably, the cellulosic ...

second embodiment

[0034]The fiber blend of the invention can be used to create a variety of textile materials. For example, the fiber blend can be used alone or in conjunction with other fibers to create nonwoven textile materials. The fiber blend can also be used to produce a spun yarn. Thus, in a second embodiment, the invention provides a spun yarn made from the fiber blend described above. In particular, the invention provides a spun yarn comprising a plurality of cellulosic fibers and a plurality of first synthetic fibers, the first synthetic fibers comprising a polyoxadiazole polymer. Since the spun yarn is made using the fiber blend of the invention, the cellulosic fibers, the first synthetic fibers, and, if present, the additional fibers can be any of those described above in connection with the fiber blend of the invention and such fibers can be present in the spun yarn in any of the amounts described above in connection with the fiber blend of the invention.

[0035]The spun yarn of the invent...

third embodiment

[0036]The fiber blend of the invention and the spun yarn of the invention can each be used to create textile materials. For example, the spun yarn can be used alone or in conjunction with other yarns to produce knit textile materials (e.g., knit fabrics) or woven textile materials (e.g., woven fabrics). Thus, in a third embodiment, the invention provides a textile material comprising a plurality of cellulosic fibers and a plurality of first synthetic fibers, the first synthetic fibers comprising a polyoxadiazole polymer. Since the textile material is made using the fiber blend of the invention or the spun yarn of the invention, the cellulosic fibers, the first synthetic fibers, and, if present, the additional fibers can be any of those described above in connection with the fiber blend of the invention and such fibers can be present in the textile material in any of the amounts described above in connection with the fiber blend of the invention.

[0037]As noted above, the textile mate...

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Abstract

The invention provides a fiber blend, spun yarn, and textile material comprising a plurality of cellulosic fibers and a plurality of first synthetic fibers. The first synthetic fibers comprise a polyoxadiazole polymer, and the polyoxadiazole polymer comprises a plurality of first repeating units and a plurality of second repeating units, the first repeating units conforming to the structure of Formula (I) below and the second repeating units conforming to the structure of Formula (II) belowY is selected from the group consisting of chlorine, bromine, diphenylphosphine oxide, and diphenylphosphine sulfide. The invention also provides a method for protecting an individual from infrared radiation that can be generated during an electrical arc flash using such a textile material.

Description

TECHNICAL FIELD OF THE INVENTION[0001]The invention relates to fiber blends, spun yarns comprising such fiber blends, textile materials comprising the fibers blends and / or spun yarns, and methods for using such textile materials.BACKGROUND[0002]Flame resistant fabrics are useful in many applications, including the production of garments worn by personnel in a variety of industries or occupations, such as the military, electrical (for arc protection), petroleum chemical manufacturing, and emergency response fields. Cellulosic or cellulosic-blend fabrics have typically been preferred for these garments, due to the relative ease with which these fabrics may be made flame resistant and the relative comfort of such fabrics to the wearer.[0003]Notwithstanding the popularity of cellulosic or cellulosic-blend flame resistant fabrics, existing fabrics do suffer from limitations. The flammability performance of many cellulosic flame resistant fabrics is not sufficient to meet the demanding re...

Claims

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Application Information

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IPC IPC(8): D02G3/00
CPCD02G3/443D10B2201/20Y10T428/2929C08G73/08C08L79/06D06P3/8204
Inventor LI, SHULONGCLIVER, JAMES D.GREER, JAMES TRAVIS
Owner MILLIKEN & CO