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Batch processing method of flame-retardant cellulose staple fiber and obtained flame-retardant cellulose staple fiber

A technology of flame-retardant cellulose and short fiber, which is applied in the direction of flame-retardant fiber, plant fiber, fiber treatment, etc., can solve the problems of reducing flame-retardant effect, loss, and inability to apply flame-retardant processing of short fiber, and achieve flame-retardant Effects of performance improvement and safety improvement

Inactive Publication Date: 2022-06-07
山东芦氏阻燃纤维科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Prouben finishing technology of this kind of fabric cannot be applied to the flame retardant processing of short fibers
Because the flame retardant used in Proben’s flame retardant finishing technology is mainly bonded to the surface of the fiber by adhesive force, there are a large number of parallel defects in the fiber; after the carding process in the spinning process, it will be combed Flame retardant attached to the surface of the fiber, thus losing or significantly reducing the flame retardant effect

Method used

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  • Batch processing method of flame-retardant cellulose staple fiber and obtained flame-retardant cellulose staple fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Example 1: A100 type Tencel produced by Lenzing, Austria, uses tetramethylolphosphorus chloride as a flame retardant.

[0071] The fiber with 100% fiber weight is transported by air flow from the cotton box feeder into the mesh cage, and at the same time, the swelling liquid is input, and the swelling liquid is combined with the squeezing action of the cake beater to make the fibers absorb the swelling liquid and make the fiber. The fibers were in a relatively dense state and were impregnated with a swelling solution at a temperature of 65 °C for 25 min. The swelling liquid contains: 70g / L NaOH (Jinan Star Chemical), 3.5g / L degreaser (Deoiling 101, Jinan Yutao Chemical), 2.5g / L penetrant (penetrant OE, Jiangsu Provincial Hai'an Petrochemical Plant), 2.5g / L of refining agent (refining agent SP, Nanjing Qixiashan Printing and Dyeing Auxiliary Factory), 30g / L of urea (Changzhou Shanglian Chemical Co., Ltd.). After the swelling liquid treatment is completed, the cage is ho...

Embodiment 2

[0082] Example 2: Tencel produced by Shanghai Leo Company, using tetrahydroxymethyl phosphorus sulfate as a flame retardant.

[0083] The fiber with 100% fiber weight is transported by air flow from the cotton box feeder into the mesh cage, and at the same time, the swelling liquid is input, and the swelling liquid is combined with the squeezing action of the cake beater to make the fibers absorb the swelling liquid and make the fiber. The fibers were in a relatively dense state and were impregnated with a swelling solution at a temperature of 35 °C for 28 min. The swelling liquid contains: 60g / L KOH (Jinan Jinhao Chemical Co., Ltd.), 3g / L degreaser (Deoiling 101, Jinan Yutao Chemical Industry), 4g / L penetrant (penetrant OE, Jiangsu Haian Petrochemical Plant), 3g / L of refining agent (refining agent SP, Nanjing Qixiashan Printing and Dyeing Auxiliary Factory), and 40g / L of surfactant (anionic surfactant L-450, Guangzhou Shengxin Chemical Technology Ltd). After the swelling li...

Embodiment 3

[0094] Example 3: Cotton fiber, using tetrahydroxymethyl phosphorus sulfate as a flame retardant.

[0095]The cotton fiber with 100% fiber weight is transported by air flow from the cotton box feeder into the mesh cage, and the swelling liquid is input at the same time, and the swelling liquid is combined with the squeezing action of the cake beater to make the cotton fiber absorb the swelling liquid. And make the fiber in a relatively dense state, soak it with the swelling liquid at a temperature of 50°C for 20min. The swelling liquid contains: 40g / L NaOH, 3g / L degreaser (Deoiling TF-101, Zhejiang Transfar Co., Ltd.), 3g / L penetrant (JFC, Taixing Hengyuan Chemical Factory) , 4g / L of refining agent (SL-J02, Zhongshan Senlian Textile New Material Technology Co., Ltd.). After the swelling liquid treatment is completed, the cage is transferred to the centrifugal dehydrator to be dried, and the high-speed centrifugal dehydrator is adjusted to the water storage state with 80 ℃ hot...

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Abstract

The invention discloses a batch processing method of flame-retardant cellulose staple fibers and the obtained flame-retardant cellulose staple fibers, wherein the method comprises impregnating the opened cellulose staple fibers with a swelling liquid, making the impregnated cellulose Short fibers are dehydrated, then optionally dried with hot air or passed through a high-temperature zone by a crawler-type transmission curtain to remove excess moisture to control fiber moisture content, and then apply a flame retardant aqueous solution of tetrakis hydroxymethyl phosphorus compound to the obtained cellulose short fibers , followed by draining, dehydration and drying, followed by ammonia fumigation and oxidation of the cellulose short fibers, and then cleaning, application of spinning oil, dehydration and drying to obtain flame-retardant cellulose short fibers. Compared with the existing flame-retardant regenerated cellulose short fiber, the strength of the flame-resistant short cellulose fiber prepared by the invention is increased by more than 20%, and the flame-retardant performance is equivalent.

Description

technical field [0001] The present invention relates to an intermittent flame-retardant processing method of cellulose staple fibers and the obtained flame-retardant cellulose staple fibers, in particular, to a batch-type processing method for obtaining higher-strength flame-retardant cellulose staple fibers. Background technique [0002] Cellulose staple fibers include natural cellulose staple fibers such as cotton fibers and hemp fibers, as well as regenerated cellulose staple fibers such as ordinary viscose fibers, high wet modulus viscose fibers, and solvent-spun Lyocell. Natural cellulose staple fibers and regenerated cellulose staple fibers have good dyeing properties and comfort, and can be freely blended with other various staple fibers to process various textile products using existing cotton spinning and wool spinning equipment. [0003] Natural cellulose staple fibers do not have flame retardant properties. Except that natural cellulose staple fibers are pure spu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M13/285D06M13/29D06M11/60D06M11/50D06M11/38D06M101/06
CPCD06M13/285D06M13/29D06M11/60D06M11/50D06M11/38D06M2101/06D06M2200/30
Inventor 施楣梧芦长江刘登云吴洪乾芦天龙魏维
Owner 山东芦氏阻燃纤维科技有限公司
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