CN112210994A - Process method for treating polyurethane fiber to prevent water and oil by adopting fluoro octyl sulfonamide - Google Patents
Process method for treating polyurethane fiber to prevent water and oil by adopting fluoro octyl sulfonamide Download PDFInfo
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- CN112210994A CN112210994A CN202010929002.4A CN202010929002A CN112210994A CN 112210994 A CN112210994 A CN 112210994A CN 202010929002 A CN202010929002 A CN 202010929002A CN 112210994 A CN112210994 A CN 112210994A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/402—Amides imides, sulfamic acids
- D06M13/438—Sulfonamides ; Sulfamic acids
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/38—Polyurethanes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
- D06M2200/11—Oleophobic properties
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
- D06M2200/12—Hydrophobic properties
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/50—Modified hand or grip properties; Softening compositions
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Abstract
The invention discloses a process method for treating polyurethane fiber to prevent water and oil by adopting fluoro octyl sulfamide, which comprises the following steps: adding the fluorine octyl sulfamide, mixing and proportioning the fluorine octyl sulfamide, treating polyurethane fibers, preparing the polyurethane fibers and forming the polyurethane fibers. The method has the beneficial effects that: the process method is suitable for treating the polyurethane fiber, the polyurethane fiber with the waterproof and oil-proof performance is obtained only by adding the fluorine octyl sulfonamide into the polyurethane fiber, and meanwhile, the polyurethane fiber has good sterilization, insect pest prevention, softness, antistatic performance and corrosion resistance, the waterproof and oil-proof performance on the surface of the polyurethane fiber can be further realized by coating the hydrophobic intermediate agent on the surface of the polyurethane fiber, the problem that stains are attached and are not easy to remove when a finished product is used is prevented, and the practicability of the finished product of the polyurethane fiber is improved.
Description
Technical Field
The invention relates to a process method, in particular to a process method for treating polyurethane fibers to prevent water and oil by adopting fluorooctyl sulfamide, belonging to the technical field of treatment and application of polyurethane fibers.
Background
Polyurethane fiber is short for polyurethane fiber, also called polyurethane elastic fiber, polyurethane is dissolved in organic solvent such as dimethyl formamide, dimethyl acetamide or dimethyl sulfoxide, polyurethane fiber is usually dyed by disperse dye, acid dye or complex dye, can be spun or blended into bare yarn or core spun yarn, is used for manufacturing elastic braided fabric or textile fabric, such as various underwear, ski wear, sports wear, swimwear, welt, belts, medical fabric, space suit and the like, to obtain spinning solution, and is spun into fiber by dry spinning or wet spinning, and then is spun into elastic polyurethane fiber by aqueous solution containing aliphatic diamine chain extender.
Polyurethane fiber has good elasticity and resilience performance, and the product made of polyurethane fiber does not have waterproof and oilproof performance, leads to the performance reduction of polyurethane fiber product, especially when the polyurethane fiber product is used in automotive interior, leads to the dirty and difficult clearance problem in surface easily, reduces the result of use of polyurethane fiber product. Therefore, a process for treating polyurethane fibers with fluorine octyl sulfonamide to prevent water and oil is provided for solving the problems.
Disclosure of Invention
The invention aims to solve the problems and provide a process method for treating polyurethane fibers to prevent water and oil by adopting fluorooctyl sulfamide.
The invention achieves the aim through the following technical scheme, and provides a process method for treating polyurethane fibers to prevent water and oil by adopting fluorooctyl sulfamide, which comprises the following steps:
(1) adding fluorooctyl sulfonamide, selecting N-ethyl perfluorooctyl sulfonamide and FC-9-N-ethyl perfluorooctyl sulfonamide for later use, heating and melting at the temperature of 100-200 ℃, and preserving heat of the fluorooctyl sulfonamide for later use;
(2) mixing and proportioning the fluorine octyl sulfonamide, namely proportioning the molten fluorine octyl sulfonamide in the step (1), selecting the proportioning ratio of N-ethyl perfluorooctyl sulfonamide to FC-9-N-ethyl perfluorooctyl sulfonamide to be 2:1, mixing the proportioned fluorine octyl sulfonamide to prepare a fluorine octyl sulfonamide mixture, preparing the N-ethyl perfluorooctyl sulfonamide, adding an alkyl hydrophobic group in the ratio of 5:1, mixing the alkyl hydrophobic group with the N-ethyl perfluorooctyl sulfonamide to prepare a hydrophobic intermediate agent, and simultaneously preserving heat with the fluorine octyl sulfonamide mixture for independent use in a molten state;
(3) treating polyurethane fibers, namely heating a polyurethane fiber raw material to a molten state, mixing the fluorooctyl sulfonamide mixture obtained in the step (2) with the polyurethane fiber raw material in a mixing ratio of 1:3, and heating and stirring the mixture to obtain a polyurethane fiber mixture;
(4) preparing polyurethane fibers, namely preparing release paper, uniformly coating the hydrophobic intermediate agent prepared in the step (2) on the surface of the release paper, uniformly coating the polyurethane fiber mixture prepared in the step (3) on the surface of the hydrophobic intermediate agent, and finally uniformly coating the hydrophobic intermediate agent on the surface of the polyurethane fiber mixture to prepare the treated polyurethane fibers;
(5) and (3) forming polyurethane fibers, namely cooling and forming the prepared polyurethane fibers, reducing the temperature of the polyurethane fibers to 25-35 ℃, and removing release paper to obtain a final product.
Preferably, in the step (1), the N-ethyl perfluorooctylsulfonamide and the FC-9-N-ethyl perfluorooctylsulfonamide are heated respectively, and the perfluorooctylsulfonamide heated to a molten state is stored by using a constant temperature device.
Preferably, the step (2) is implemented by separately conveying the N-ethyl perfluorooctylsulfonamide and FC-9-N-ethyl perfluorooctylsulfonamide melts, controlling the proportion of the N-ethyl perfluorooctylsulfonamide and FC-9-N-ethyl perfluorooctylsulfonamide melts by using a quantitative adding device, and fully stirring the mixture by using a stirring device, wherein the residual N-ethyl perfluorooctylsulfonamide is reserved for standby.
Preferably, the residual N-ethyl perfluorooctyl sulfonamide after mixing in the step (2) is mixed according to the weight ratio of 5:1, adding alkyl hydrophobic group, and fully mixing to obtain the hydrophobic intermediate agent.
Preferably, the mixture of the fluorooctyl sulfonamide prepared in the step (2) and the hydrophobic intermediate agent are separately stored in an insulated manner.
Preferably, the polyurethane fiber raw material in the step (3) is heated to a molten state at a high temperature, the fluorooctyl sulfonamide mixture prepared in the step (2) is added into the polyurethane fiber raw material, and the polyurethane mixture prepared after sufficient stirring and mixing is preserved at a constant temperature through a heat preservation device.
Preferably, the polyurethane mixture prepared in the step (3) is conveyed and added into a stirring barrel.
Preferably, hydrophobic intermediate agents are formed on both sides of the polyurethane fibers treated in the step (4), the thickness and the density of the hydrophobic intermediate agents are the same, and the thickness ratio of the hydrophobic intermediate agents to the polyurethane fiber mixture is 1: 8.
preferably, the hydrophobic intermediate agent and the polyurethane fiber mixture in the step (4) are uniformly stirred during coating.
Preferably, in the step (5), the release paper is attached to the inside of the mold, the treated polyurethane fiber is cooled and molded in the mold, and then the prepared product is taken out and the release paper is removed.
The invention has the beneficial effects that: the process method is suitable for treating the polyurethane fiber, the polyurethane fiber with the waterproof and oil-proof performance is obtained only by adding the fluorine octyl sulfonamide into the polyurethane fiber, and meanwhile, the polyurethane fiber has good sterilization, insect pest prevention, softness, antistatic performance and corrosion resistance, the waterproof and oil-proof performance on the surface of the polyurethane fiber can be further realized by coating the hydrophobic intermediate agent on the surface of the polyurethane fiber, the problem that stains are attached and are not easy to remove when a finished product is used is prevented, and the practicability of the finished product of the polyurethane fiber is improved.
Drawings
FIG. 1 is a flow chart of the process of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
a process method for treating polyurethane fiber to prevent water and oil by adopting fluorine octyl sulfamide comprises the following steps:
(1) adding fluorooctyl sulfonamide, selecting N-ethyl perfluorooctyl sulfonamide and FC-9-N-ethyl perfluorooctyl sulfonamide for later use, heating and melting at the temperature of 100-200 ℃, and preserving heat of the fluorooctyl sulfonamide for later use;
(2) mixing and proportioning the fluorine octyl sulfonamide, namely proportioning the molten fluorine octyl sulfonamide in the step (1), selecting the proportioning ratio of N-ethyl perfluorooctyl sulfonamide to FC-9-N-ethyl perfluorooctyl sulfonamide to be 2:1, mixing the proportioned fluorine octyl sulfonamide to prepare a fluorine octyl sulfonamide mixture, preparing the N-ethyl perfluorooctyl sulfonamide, adding an alkyl hydrophobic group in the ratio of 5:1, mixing the alkyl hydrophobic group with the N-ethyl perfluorooctyl sulfonamide to prepare a hydrophobic intermediate agent, and simultaneously preserving heat with the fluorine octyl sulfonamide mixture for independent use in a molten state;
(3) treating polyurethane fibers, namely heating a polyurethane fiber raw material to a molten state, mixing the fluorooctyl sulfonamide mixture obtained in the step (2) with the polyurethane fiber raw material in a mixing ratio of 1:3, and heating and stirring the mixture to obtain a polyurethane fiber mixture;
(4) preparing polyurethane fibers, namely preparing release paper, uniformly coating the hydrophobic intermediate agent prepared in the step (2) on the surface of the release paper, uniformly coating the polyurethane fiber mixture prepared in the step (3) on the surface of the hydrophobic intermediate agent, and finally uniformly coating the hydrophobic intermediate agent on the surface of the polyurethane fiber mixture to prepare the treated polyurethane fibers;
(5) and (3) forming polyurethane fibers, namely cooling and forming the prepared polyurethane fibers, reducing the temperature of the polyurethane fibers to 25-35 ℃, and removing release paper to obtain a final product.
And (2) respectively heating the N-ethyl perfluorooctyl sulfonamide and the FC-9-N-ethyl perfluorooctyl sulfonamide in the step (1), and storing the perfluorooctyl sulfonamide heated to a molten state by adopting constant-temperature equipment.
And (3) respectively conveying the N-ethyl perfluorooctyl sulfonamide and FC-9-N-ethyl perfluorooctyl sulfonamide melts in the step (2), controlling the proportion of the N-ethyl perfluorooctyl sulfonamide and FC-9-N-ethyl perfluorooctyl sulfonamide melts by using quantitative adding equipment, fully stirring the mixture by using stirring equipment, and leaving the residual N-ethyl perfluorooctyl sulfonamide for later use.
And (3) mixing the N-ethyl perfluorooctyl sulfonamide left in the step (2) according to a ratio of 5:1, adding alkyl hydrophobic group, and fully mixing to obtain the hydrophobic intermediate agent.
And (3) separately preserving the mixture of the fluorooctyl sulfamide and the hydrophobic intermediate agent prepared in the step (2).
And (3) heating the polyurethane fiber raw material in the step (3) to a molten state at a high temperature, adding the fluorooctyl sulfonamide mixture prepared in the step (2) into the polyurethane fiber raw material, and storing the polyurethane mixture prepared after fully stirring and mixing at a constant temperature through a heat preservation device.
And (4) conveying and adding the polyurethane mixture prepared in the step (3) into a stirring barrel.
And (3) forming hydrophobic intermediate agents on two surfaces of the polyurethane fibers treated in the step (4), wherein the thickness and the density of the hydrophobic intermediate agents are the same, and the thickness ratio of the hydrophobic intermediate agents to the polyurethane fiber mixture is 1: 8.
and (4) fully and uniformly stirring the hydrophobic intermediate agent and the polyurethane fiber mixture during coating.
And (5) attaching the release paper to the interior of the mold, cooling and molding the treated polyurethane fiber in the mold, taking out the prepared product, and removing the release paper.
The method is suitable for polyurethane fibers with high water and oil resistance, and the processed and molded polyurethane fibers have high water resistance and high processing cost.
Example two:
a process method for treating polyurethane fiber to prevent water and oil by adopting fluorine octyl sulfamide comprises the following steps:
(1) adding fluorooctyl sulfonamide, selecting N-ethyl perfluorooctyl sulfonamide and FC-9-N-ethyl perfluorooctyl sulfonamide for later use, heating and melting at the temperature of 100-200 ℃, and preserving heat of the fluorooctyl sulfonamide for later use;
(2) mixing and proportioning the fluorine octyl sulfonamide, namely proportioning the molten fluorine octyl sulfonamide in the step (1), selecting the proportioning ratio of N-ethyl perfluorooctyl sulfonamide to FC-9-N-ethyl perfluorooctyl sulfonamide to be 2:1, mixing the proportioned fluorine octyl sulfonamide to prepare a fluorine octyl sulfonamide mixture, preparing the N-ethyl perfluorooctyl sulfonamide, adding an alkyl hydrophobic group in the ratio of 5:1, mixing the alkyl hydrophobic group with the N-ethyl perfluorooctyl sulfonamide to prepare a hydrophobic intermediate agent, and simultaneously preserving heat with the fluorine octyl sulfonamide mixture for independent use in a molten state;
(3) treating polyurethane fibers, namely heating a polyurethane fiber raw material to a molten state, mixing the fluorooctyl sulfonamide mixture obtained in the step (2) with the polyurethane fiber raw material in a mixing ratio of 1:4, and heating and stirring the mixture to obtain a polyurethane fiber mixture;
(4) preparing polyurethane fibers, namely preparing release paper, uniformly coating the hydrophobic intermediate agent prepared in the step (2) on the surface of the release paper, uniformly coating the polyurethane fiber mixture prepared in the step (3) on the surface of the hydrophobic intermediate agent, and finally uniformly coating the hydrophobic intermediate agent on the surface of the polyurethane fiber mixture to prepare the treated polyurethane fibers;
(5) and (3) forming polyurethane fibers, namely cooling and forming the prepared polyurethane fibers, reducing the temperature of the polyurethane fibers to 25-35 ℃, and removing release paper to obtain a final product.
And (2) respectively heating the N-ethyl perfluorooctyl sulfonamide and the FC-9-N-ethyl perfluorooctyl sulfonamide in the step (1), and storing the perfluorooctyl sulfonamide heated to a molten state by adopting constant-temperature equipment.
And (3) respectively conveying the N-ethyl perfluorooctyl sulfonamide and FC-9-N-ethyl perfluorooctyl sulfonamide melts in the step (2), controlling the proportion of the N-ethyl perfluorooctyl sulfonamide and FC-9-N-ethyl perfluorooctyl sulfonamide melts by using quantitative adding equipment, fully stirring the mixture by using stirring equipment, and leaving the residual N-ethyl perfluorooctyl sulfonamide for later use.
And (3) mixing the N-ethyl perfluorooctyl sulfonamide left in the step (2) according to a ratio of 6: 1, adding alkyl hydrophobic group, and fully mixing to obtain the hydrophobic intermediate agent.
And (3) separately preserving the mixture of the fluorooctyl sulfamide and the hydrophobic intermediate agent prepared in the step (2).
And (3) heating the polyurethane fiber raw material in the step (3) to a molten state at a high temperature, adding the fluorooctyl sulfonamide mixture prepared in the step (2) into the polyurethane fiber raw material, and storing the polyurethane mixture prepared after fully stirring and mixing at a constant temperature through a heat preservation device.
And (4) conveying and adding the polyurethane mixture prepared in the step (3) into a stirring barrel.
And (3) forming hydrophobic intermediate agents on two surfaces of the polyurethane fibers treated in the step (4), wherein the thickness and the density of the hydrophobic intermediate agents are the same, and the thickness ratio of the hydrophobic intermediate agents to the polyurethane fiber mixture is 1: 8.
and (4) fully and uniformly stirring the hydrophobic intermediate agent and the polyurethane fiber mixture during coating.
And (5) attaching the release paper to the interior of the mold, cooling and molding the treated polyurethane fiber in the mold, taking out the prepared product, and removing the release paper.
The method is suitable for polyurethane fibers with low water and oil resistance, and the processed and molded polyurethane fibers have low water resistance and low processing cost.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A process method for treating polyurethane fiber to prevent water and oil by adopting fluorine octyl sulfamide is characterized by comprising the following steps: the process method comprises the following steps:
(1) adding fluorooctyl sulfonamide, selecting N-ethyl perfluorooctyl sulfonamide and FC-9-N-ethyl perfluorooctyl sulfonamide for later use, heating and melting at the temperature of 100-200 ℃, and preserving heat of the fluorooctyl sulfonamide for later use;
(2) mixing and proportioning the fluorine octyl sulfonamide, namely proportioning the molten fluorine octyl sulfonamide in the step (1), selecting the proportioning ratio of N-ethyl perfluorooctyl sulfonamide to FC-9-N-ethyl perfluorooctyl sulfonamide to be 2:1, mixing the proportioned fluorine octyl sulfonamide to prepare a fluorine octyl sulfonamide mixture, preparing the N-ethyl perfluorooctyl sulfonamide, adding an alkyl hydrophobic group in the ratio of 5:1, mixing the alkyl hydrophobic group with the N-ethyl perfluorooctyl sulfonamide to prepare a hydrophobic intermediate agent, and simultaneously preserving heat with the fluorine octyl sulfonamide mixture for independent use in a molten state;
(3) treating polyurethane fibers, namely heating a polyurethane fiber raw material to a molten state, mixing the fluorooctyl sulfonamide mixture obtained in the step (2) with the polyurethane fiber raw material in a mixing ratio of 1:3, and heating and stirring the mixture to obtain a polyurethane fiber mixture;
(4) preparing polyurethane fibers, namely preparing release paper, uniformly coating the hydrophobic intermediate agent prepared in the step (2) on the surface of the release paper, uniformly coating the polyurethane fiber mixture prepared in the step (3) on the surface of the hydrophobic intermediate agent, and finally uniformly coating the hydrophobic intermediate agent on the surface of the polyurethane fiber mixture to prepare the treated polyurethane fibers;
(5) and (3) forming polyurethane fibers, namely cooling and forming the prepared polyurethane fibers, reducing the temperature of the polyurethane fibers to 25-35 ℃, and removing release paper to obtain a final product.
2. The process for water and oil proofing polyurethane fiber by using fluoro octyl sulfamide according to claim 1, which is characterized in that: and (2) respectively heating the N-ethyl perfluorooctyl sulfonamide and the FC-9-N-ethyl perfluorooctyl sulfonamide in the step (1), and storing the perfluorooctyl sulfonamide heated to a molten state by adopting constant-temperature equipment.
3. The process for water and oil proofing polyurethane fiber by using fluoro octyl sulfamide according to claim 1, which is characterized in that: and (3) respectively conveying the N-ethyl perfluorooctyl sulfonamide and FC-9-N-ethyl perfluorooctyl sulfonamide melts in the step (2), controlling the proportion of the N-ethyl perfluorooctyl sulfonamide and FC-9-N-ethyl perfluorooctyl sulfonamide melts by using quantitative adding equipment, fully stirring the mixture by using stirring equipment, and leaving the residual N-ethyl perfluorooctyl sulfonamide for later use.
4. The process for water and oil proofing polyurethane fiber by using fluoro octyl sulfamide according to claim 1, which is characterized in that: and (3) mixing the N-ethyl perfluorooctyl sulfonamide left in the step (2) according to a ratio of 5:1, adding alkyl hydrophobic group, and fully mixing to obtain the hydrophobic intermediate agent.
5. The process for water and oil proofing polyurethane fiber by using fluoro octyl sulfamide according to claim 1, which is characterized in that: and (3) separately preserving the mixture of the fluorooctyl sulfamide and the hydrophobic intermediate agent prepared in the step (2).
6. The process for water and oil proofing polyurethane fiber by using fluoro octyl sulfamide according to claim 1, which is characterized in that: and (3) heating the polyurethane fiber raw material in the step (3) to a molten state at a high temperature, adding the fluorooctyl sulfonamide mixture prepared in the step (2) into the polyurethane fiber raw material, and storing the polyurethane mixture prepared after fully stirring and mixing at a constant temperature through a heat preservation device.
7. The process for water and oil proofing polyurethane fiber by using fluoro octyl sulfamide according to claim 1, which is characterized in that: and (4) conveying and adding the polyurethane mixture prepared in the step (3) into a stirring barrel.
8. The process for water and oil proofing polyurethane fiber by using fluoro octyl sulfamide according to claim 1, which is characterized in that: and (3) forming hydrophobic intermediate agents on two surfaces of the polyurethane fibers treated in the step (4), wherein the thickness and the density of the hydrophobic intermediate agents are the same, and the thickness ratio of the hydrophobic intermediate agents to the polyurethane fiber mixture is 1: 8.
9. the process for water and oil proofing polyurethane fiber by using fluoro octyl sulfamide according to claim 1, which is characterized in that: and (4) fully and uniformly stirring the hydrophobic intermediate agent and the polyurethane fiber mixture during coating.
10. The process for water and oil proofing polyurethane fiber by using fluoro octyl sulfamide according to claim 1, which is characterized in that: and (5) attaching the release paper to the interior of the mold, cooling and molding the treated polyurethane fiber in the mold, taking out the prepared product, and removing the release paper.
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| CN106894128A (en) * | 2017-02-26 | 2017-06-27 | 浙江峰赫纺织有限公司 | A kind of preparation method of antifouling sofa fabric |
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