CN112796104A - Durable flame-retardant finishing process for pure cotton with ultralow formaldehyde content - Google Patents
Durable flame-retardant finishing process for pure cotton with ultralow formaldehyde content Download PDFInfo
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- CN112796104A CN112796104A CN202011460472.7A CN202011460472A CN112796104A CN 112796104 A CN112796104 A CN 112796104A CN 202011460472 A CN202011460472 A CN 202011460472A CN 112796104 A CN112796104 A CN 112796104A
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 229920000742 Cotton Polymers 0.000 title claims abstract description 52
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 239000003063 flame retardant Substances 0.000 title claims abstract description 47
- 238000007730 finishing process Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000005406 washing Methods 0.000 claims description 47
- 239000004744 fabric Substances 0.000 claims description 38
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 238000001035 drying Methods 0.000 claims description 21
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 15
- 235000017550 sodium carbonate Nutrition 0.000 claims description 15
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 14
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 10
- 239000003513 alkali Substances 0.000 claims description 10
- 239000003431 cross linking reagent Substances 0.000 claims description 10
- 239000003223 protective agent Substances 0.000 claims description 9
- 239000012224 working solution Substances 0.000 claims description 9
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 5
- -1 N-methylolacrylamide compound Chemical class 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000004945 emulsification Methods 0.000 claims description 2
- 239000004753 textile Substances 0.000 abstract description 7
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract description 4
- 238000004043 dyeing Methods 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000013256 coordination polymer Substances 0.000 description 3
- 239000004373 Pullulan Substances 0.000 description 2
- 229920001218 Pullulan Polymers 0.000 description 2
- 235000019423 pullulan Nutrition 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N Glycolaldehyde Chemical compound OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 230000037007 arousal Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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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
- D06M13/419—Amides having nitrogen atoms of amide groups substituted by hydroxyalkyl or by etherified or esterified hydroxyalkyl groups
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
- D06B3/18—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics combined with squeezing, e.g. in padding machines
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
- D06L1/12—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using aqueous solvents
- D06L1/16—Multi-step processes
-
- 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
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/68—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof
- D06M11/70—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof with oxides of phosphorus; with hypophosphorous, phosphorous or phosphoric acids or their salts
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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
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
- D06M11/76—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon oxides or carbonates
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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
- D06M13/02—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with hydrocarbons
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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
- D06M13/10—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 oxygen
- D06M13/144—Alcohols; Metal alcoholates
- D06M13/148—Polyalcohols, e.g. glycerol or glucose
-
- 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
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
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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
- D06M2101/34—Polyamides
- D06M2101/36—Aromatic polyamides
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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
- D06M2200/30—Flame or heat resistance, fire retardancy properties
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a durable flame-retardant finishing process for pure cotton with ultralow formaldehyde, which belongs to the technical field of textile printing and dyeing. The invention solves the problems of standard exceeding of formaldehyde and hard hand feeling after flame retardant finishing through a flame retardant product system, the formaldehyde of the finished textile is lower than 75ppm, the safety technical requirement of GB-18401II level is met, the hand feeling is soft, and the flame retardant property meets the related flame retardant standard requirement; the novel process is applied to a plurality of domestic dye factories, and obtains good economic and social benefits as an upgrading process of the traditional flame-retardant finishing.
Description
Technical Field
The invention belongs to the technical field of textile printing and dyeing, and particularly relates to a durable flame-retardant finishing process for pure cotton with ultralow formaldehyde.
Background
The traditional durable flame retardant of pure cotton mainly comprises the flame retardant of the Pullulan and the flame retardant of the CP, and the main difference between the Pullulan and the CP is shown in the table 1;
TABLE 1
The biggest defects of the traditional durable flame-retardant finishing process are that the formaldehyde of the fabric exceeds the standard (>75ppm) and the hand feeling is hard. With the arousal of the environmental awareness of consumers and the attention to the health of the consumers, the traditional flame-retardant finishing can not meet the requirements of the consumer market, and more flame-retardant orders at home and abroad require that the free formaldehyde of the flame-retardant textile is less than 75 ppm. In order to meet the requirement of ultralow formaldehyde, a factory still using the traditional flame-retardant finishing process has to add a large amount of formaldehyde catching agent in the subsequent flame-retardant process, but brings new problems, such as fabric discoloration, excessive formaldehyde after placement, uncomfortable wearing and the like.
Disclosure of Invention
The invention aims to provide a durable flame-retardant finishing process for pure cotton with ultralow formaldehyde, which aims to solve the problems in the background technology.
The method starts from the flame-retardant system product and the flame-retardant finishing process, solves the problem of formaldehyde and improves the comfort of taking. The flame-retardant system consists of four products, namely a flame retardant ZR-2, a cross-linking agent GX-100, a protective agent DTQ and phosphoric acid. Compared with the CP flame retardant, the flame retardant ZR-2 is optimized in the synthesis process, so that the content of free formaldehyde and hydroxymethyl formaldehyde in the product is further reduced and controlled; the cross-linking agent GX-100 can be subjected to cross-linking reaction with the flame retardant ZR-2 and fibers, and the product does not contain formaldehyde and can not release formaldehyde, which is the biggest difference from a melamine cross-linking agent; the protective agent DTQ has soft hand feeling; phosphoric acid is used as a catalyst. The flame-retardant finishing process is also optimized, and the ventilation time after neutralization is increased so as to be beneficial to full water washing.
In order to achieve the purpose, the invention provides the following technical scheme:
the durable flame-retardant finishing process of the pure cotton with ultralow formaldehyde comprises the following specific process steps:
(1) preparing a working solution: the components and the mixture ratio are respectively 450g/L of flame retardant ZR-2350-450 g/L, GX-1002 g/L of cross-linking agent, DT-650030-40 g/L of protective agent and 20g/L of phosphoric acid;
(2) padding: a soaking and rolling mode is adopted, and the mangle yield is 65 percent;
(3) pre-baking: the pre-drying temperature is set to be 100-;
(4) baking: the baking temperature is set to 160-165 ℃, and the baking time is 2-2.5 minutes;
(5) and (3) padding with soda ash: padding the dried pure cotton fabric by adopting 20-25g/L of soda ash;
(6) ventilating: ventilating for 1-3 min at room temperature;
(7) first water washing: washing the pure cotton fabric with hot water at 40-60 ℃;
(8) alkali washing: carrying out alkali washing on the pure cotton fabric by adopting 10-15g/L of soda ash;
(9) and (3) second water washing: washing the pure cotton fabric with hot water at 40-60 ℃;
(10) washing with 1.5-2g/L hydrogen peroxide at 40-60 deg.C;
(11) and (3) washing for the third time: washing the pure cotton fabric with hot water at 40-60 ℃;
(12) drying: and drying the washed pure cotton fabric.
As a further scheme of the invention: the flame retardant ZR-2 in the step (1) is an N-hydroxymethyl acrylamide compound.
As a further scheme of the invention: the crosslinking agent GX-100 in the step (1) is a polyhydroxy compound.
As a further scheme of the invention: the protective agent DTQ in the step (1) is composite wax and is prepared by high-temperature high-pressure emulsification.
Compared with the prior art, the textile subjected to flame-retardant finishing by the process meets the GB/T17591-2006B 1-level flame-retardant standard and the GB 8965.1-2009C-level flame-retardant standard, meanwhile, the formaldehyde is far lower than 75ppm, the textile meets the technical requirements of GB 18401II textiles, has soft hand feeling, and meets the requirement of comfort taking; the novel process is applied to a plurality of domestic dye factories, and obtains good economic and social benefits as an upgrading process of the traditional flame-retardant finishing.
Drawings
FIG. 1 is a flow chart of a durable flame-retardant finishing process of ultra-low formaldehyde pure cotton.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
The first embodiment is as follows: pure cotton fabric 20x 16128 x60 red yarn cards.
Referring to fig. 1, a durable flame-retardant finishing process for ultra-low formaldehyde pure cotton includes the following specific steps:
(1) preparing a working solution: the components and the mixture ratio are respectively flame retardant ZR-2400 g/L, cross-linking agent GX-1002 g/L, protective agent DTQ 40g/L and phosphoric acid 20 g/L;
(2) padding: placing the pure cotton fabric into prepared working solution for padding, wherein a padding-padding mode is adopted, and the padding liquor rate is 65%;
(3) pre-baking: the pre-drying temperature is set to be 100 ℃, and the pre-drying time is 2 minutes;
(4) baking: the baking temperature is set to 165 ℃, and the drying time is 2 minutes;
(5) and (3) padding with soda ash: padding the dried pure cotton fabric by using 20g/L of soda ash;
(6) ventilating: ventilating at room temperature for 1.5 min;
(7) first water washing: washing the pure cotton fabric with hot water at 40 ℃;
(8) alkali washing: carrying out alkali washing on the pure cotton fabric by adopting 10g/L of soda ash;
(9) and (3) second water washing: washing the pure cotton fabric with hot water at 60 ℃;
(10) washing with 2g/L hydrogen peroxide at 40 deg.C;
(11) and (3) washing for the third time: washing the pure cotton fabric with hot water at 40 ℃;
(12) drying: and drying the washed pure cotton fabric.
The operation process has the advantages that the damaged carbon length is 10.8cm, smoldering lasts for 0 second, the GB/T17591B 1-grade requirements are met, free formaldehyde is 18ppm, the GB 18401 II-grade safety technical requirements are met, the hand feeling is soft, and the taking comfort is good.
Example two: cotton 50/aramid 5030/2 x 30/270 x60 blue twill.
Referring to fig. 1, a durable flame-retardant finishing process for ultra-low formaldehyde pure cotton includes the following specific steps:
(1) preparing a working solution: the components and the mixture ratio are respectively flame retardant ZR-2350 g/L, cross-linking agent GX-1002 g/L, protective agent DTQ 30g/L and phosphoric acid 20 g/L;
(2) padding: placing the pure cotton fabric into prepared working solution for padding, wherein a padding-padding mode is adopted, and the padding liquor rate is 65%;
(3) pre-baking: setting the pre-drying temperature to be 110 ℃, wherein the pre-drying time is 1 minute;
(4) baking: the baking temperature is set to 165 ℃, and the drying time is 2 minutes;
(5) and (3) padding with soda ash: padding the dried pure cotton fabric by adopting 25g/L of soda ash;
(6) ventilating: ventilating at room temperature for 3 min;
(7) first water washing: washing the pure cotton fabric with hot water at 40 ℃;
(8) alkali washing: carrying out alkali washing on the pure cotton fabric by adopting 15g/L of soda ash;
(9) and (3) second water washing: washing the pure cotton fabric with hot water at 40 ℃;
(10) washing with 1.5g/L hydrogen peroxide at 50 deg.C;
(11) and (3) washing for the third time: washing the pure cotton fabric with hot water at 60 ℃;
(12) drying: and drying the washed pure cotton fabric.
The operation process has the advantages that the damaged carbon is 4.5cm long, smoldering lasts for 0 second, 16ppm of free formaldehyde meeting the GB 8965.1A-level requirement and 16ppm of free formaldehyde meeting the GB 18401 II-level safety technical requirement, and the operation process has soft hand feeling and good wearing comfort.
Example three: pure cotton fabric 16x 12120 x60 orange yarn cards.
Referring to fig. 1, a durable flame-retardant finishing process for ultra-low formaldehyde pure cotton includes the following specific steps:
(1) preparing a working solution: the components and the mixture ratio are respectively flame retardant ZR-2450 g/L, cross-linking agent GX-1002 g/L, protective agent DTQ 40g/L and phosphoric acid 20 g/L;
(2) padding: placing the pure cotton fabric into prepared working solution for padding, wherein a padding-padding mode is adopted, and the padding liquor rate is 65%;
(3) pre-baking: the pre-drying temperature is set to be 110 ℃, and the pre-drying time is 2 minutes;
(4) baking: the baking temperature is set to be 160 ℃, and the drying time is 2.5 minutes;
(5) and (3) padding with soda ash: padding the dried pure cotton fabric by using 20g/L of soda ash;
(6) ventilating: ventilating at room temperature for 2 min;
(7) first water washing: washing the pure cotton fabric with hot water at 60 ℃;
(8) alkali washing: carrying out alkali washing on the pure cotton fabric by adopting 10g/L of soda ash;
(9) and (3) second water washing: washing the pure cotton fabric with hot water at 50 ℃;
(10) 2g/L of hydrogen peroxide is adopted for washing, and the washing temperature is set to be 60 ℃;
(11) and (3) washing for the third time: washing the pure cotton fabric with hot water at 50 ℃;
(12) drying: and drying the washed pure cotton fabric.
The operation process has the advantages that the damaged carbon is 11cm long, smoldering lasts for 0 second, 22ppm of free formaldehyde meeting the GB/T17591B 1 level requirement and the GB 18401II level safety technical requirement are met, and the operation process is soft in hand feeling and good in wearing comfort.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (4)
1. The durable flame-retardant finishing process of the pure cotton with ultralow formaldehyde is characterized by comprising the following specific process steps:
(1) preparing a working solution: the components and the mixture ratio are respectively 450g/L of flame retardant ZR-2350, 1002 g/L of cross-linking agent GX, 30-40g/L of protective agent DTQ and 20g/L of phosphoric acid;
(2) padding: placing the pure cotton fabric into prepared working solution for padding, wherein a padding-padding mode is adopted, and the padding liquor rate is 65%;
(3) pre-baking: the pre-drying temperature is set to be 100-;
(4) baking: the baking temperature is set to 160-165 ℃, and the baking time is 2-2.5 minutes;
(5) and (3) padding with soda ash: padding the dried pure cotton fabric by adopting 20-25g/L of soda ash;
(6) ventilating: ventilating at room temperature for 1-3 min;
(7) first water washing: washing the pure cotton fabric with hot water at 40-60 ℃;
(8) alkali washing: carrying out alkali washing on the pure cotton fabric by adopting 10-15g/L of soda ash;
(9) and (3) second water washing: washing the pure cotton fabric with hot water at 40-60 ℃;
(10) washing with 1.5-2g/L hydrogen peroxide at 40-60 deg.C;
(11) and (3) washing for the third time: washing the pure cotton fabric with hot water at 40-60 ℃;
(12) drying: and drying the washed pure cotton fabric.
2. The durable flame-retardant finishing process of the ultra-low formaldehyde pure cotton according to claim 1, wherein the flame retardant ZR-2 in the step (1) is an N-methylolacrylamide compound.
3. The durable flame-retardant finishing process of the pure cotton with ultra-low formaldehyde as claimed in claim 1, wherein the crosslinking agent GX-100 of the step (1) is a polyhydroxy compound.
4. The durable flame-retardant finishing process of the pure cotton with ultra-low formaldehyde as claimed in claim 1, wherein the protective agent DTQ in step (1) is a composite wax, and is prepared by emulsification at high temperature and high pressure.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1309873A (en) * | 1970-05-15 | 1973-03-14 | Monsanto Co | Flame-resistant compositions |
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Application publication date: 20210514 |