CN110438661A - A kind of novel environment friendly fire retardant felt and preparation method thereof - Google Patents
A kind of novel environment friendly fire retardant felt and preparation method thereof Download PDFInfo
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- CN110438661A CN110438661A CN201910778960.3A CN201910778960A CN110438661A CN 110438661 A CN110438661 A CN 110438661A CN 201910778960 A CN201910778960 A CN 201910778960A CN 110438661 A CN110438661 A CN 110438661A
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- fiber
- environment friendly
- novel environment
- fire retardant
- retardant
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Classifications
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
-
- 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
- D06B3/02—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fibres, slivers or rovings
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Fireproofing Substances (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The invention discloses a kind of novel environment friendly fire retardant felt, the mass percentage of the component and each component that are included is to impregnate flame-retardant cotton fiber 55 ~ 85%, thermoplastic low-melt fiber 15 ~ 45%, three-dimensional hollow crimped fibre 0 ~ 20%, polyester fiber 0 ~ 40%.The preparation method of the novel environment friendly fire retardant felt is the pre- shredding of thermoplastic low-melt fiber, and it is mixed respectively via four electronics bale opener feedings in proportion with dipping flame-retardant cotton fiber, three-dimensional hollow crimped fibre, polyester fiber, mixed feedstock transportation to refined opener shredding is carried out by mixing unit convoying curtain again to break up, subsequently into hopper, adjust the output speed of random web-laying equipment, by speed control in 2 ~ 8m/s, the raw material of laying net for shaping is sent into baking oven through transition curtain, oven temperature is set in 180 ~ 230 DEG C, and web plate gauge is arranged in 10 ~ 40mm.Novel environment friendly fire retardant felt provided by the invention, environmental protection, no dust, anti-flammability, sound absorption properties are excellent.Product surface gloss is smooth, and effect on environment is minimum in production process, and is easy to continuous production.
Description
Technical field
The present invention relates to a kind of novel environment friendly fire retardant felts and preparation method thereof, and in particular to one kind can be used for household electrical appliances, automobile
The preparation method of novel non-dusting Vertical Flame acoutic fibre board material in interior trim.
Background technique
For the sake of noise reduction and safety, household electrical appliances such as air-conditioning, dust catcher, washing machine, the sound-absorbing material that automobile interior decoration etc. uses was both
Having sound-absorption requirement again has stringent flame-retardancy requirements, and household electrical appliances require that country's 3C standard (GB8410 standard) need to be higher than, and reach vertical
It is fire-retardant such as UL-94-V0 grades, and the acoutic fibre board felt for commonly reaching Vertical Flame in the market is mostly to add resin and fire-retardant by cotton
Agent powder combinations use, due to resin it is self-curing after have promotion to flame retardant effect, so this kind of fire proofing continue to use always to
The present, however resin-oatmeal and fire-retardant powder easily fugitive dust in process of production, on production environment influence greatly, be not applied for as
The new demand of modern environmentally protective production needs to develop thus a kind of fire retardant felt without adding resin-oatmeal and fire retardant powder and is subject to
Upgrading.
Summary of the invention
Purpose: in order to overcome the deficiencies in the prior art, the present invention provides a kind of novel environment friendly fire retardant felt, has excellent
Flame retardant property more meets UL94-V0 standard, while also having high tensile, and excellent corrosion resistance and sound absorption properties meet
Performance detection needed for household electrical appliances, automobile industry, and volume production is convenient, can be produced in batches with existing woven textile equipment, nothing
It need to additionally change or increase equipment.
Technical solution: in order to solve the above technical problems, the technical solution adopted by the present invention are as follows:
A kind of novel environment friendly fire retardant felt, the mass percentage of the component and each component that are included be,
Flame-retardant cotton fiber 55 ~ 85% is impregnated,
Thermoplastic low-melt fiber 15 ~ 45%,
Three-dimensional hollow crimped fibre 0 ~ 20%,
Polyester fiber 0 ~ 40%.
Preferably, the dipping flame-retardant cotton fiber is that Guanidine Sulfamate 99 impregnates flame-retardant cotton fiber.
Preferably, the thermoplastic low-melt fiber sheath is random copolymerization modified polyester polymer, and sandwich layer is common poly-
Ester, the fineness of thermoplastic low-melt fiber are 4 ~ 6Dtex, and length is 38 ~ 64mm.
Preferably, the three-dimensional hollow crimped fibre fineness is 4 ~ 6Dtex, and length is 38 ~ 64mm.
Preferably, the polyester fiber fineness is 4 ~ 6Dtex, and length is 38 ~ 64mm.
A kind of preparation method of novel environment friendly fire retardant felt, includes the following steps:
The pre- shredding of thermoplastic low-melt fiber, and in proportion with dipping flame-retardant cotton fiber, three-dimensional hollow crimped fibre, polyester fiber
It is mixed respectively via four electronics bale opener feedings, then by mixing unit convoying curtain by mixed feedstock transportation to refined opener
It carries out shredding to break up, subsequently into hopper, the output speed of random web-laying equipment is adjusted, by speed control in 2 ~ 8m/s, by lapping
Molding raw material is sent into baking oven through transition curtain, and oven temperature is set in 180 ~ 230 DEG C, and web plate gauge is arranged in 10 ~ 40mm.
Preferably, it is described dipping flame-retardant cotton fiber the preparation method is as follows:
Guanidine Sulfamate 99 is deployed into the aqueous solution that concentration is 9 ~ 15%, Guanidine Sulfamate 99 solution is added in steeper, it will be to
The cotton block of processing is placed in the container, is taken out and is drained after impregnating 10 ~ 24 hours, be placed under sunlight dry 24 hours or
Dry 5 ~ 10min in 100 ~ 150 DEG C of baking ovens, through being broken up by opener after cotton block is dry, it is fine that shredding impregnates retardant cotton
Dimension length is 10 ~ 50mm, stand-by with automatic packing machine great achievement cotton packet after shredding.
The utility model has the advantages that a kind of novel environment friendly fire retardant felt provided by the invention, fine to regenerate cotton fiber and thermoplastic low-melt
Dimension is main component, carries out dipping flame retardant treatment to cotton fiber as fire retardant using Guanidine Sulfamate 99, Guanidine Sulfamate 99 can change
The cracking reaction course for becoming cotton fiber, the charing for promoting cotton fiber, the life smoke for reducing combustion process, Guanidine Sulfamate 99 can be simultaneously
Fire retardation is played in gas phase and solid phase, discharges incombustibility gas in the gas phase, promotes the generation of carbon residue in solid phase；It is suitable
Flame-inhibition processing for fibrous material；
Using thermoplastic low-melt fiber as environmental-friendly adhesion agent, high-temperature heating will dipping flame-retardant cotton fiber bonding after melting it
At fixed shape；
A small amount of three-dimensional hollow crimped fibre is added as filling, Lai Zengjia mellowness and thickness；Adding a small amount of polyester fiber can
To effectively improve the thermoplastic shaping performance of product.
Novel environment friendly fire retardant felt provided by the invention molding thickness easy to control and rigidity can meet client's different-thickness, no
With the demand of rigid product；Product surface gloss is smooth, and anti-flammability, sound absorption properties are excellent；Production process environmental protection, without dust, from original
Material is mixed into can be offline within cutting 20 minutes used times of molding, is easy to continuous production.
Specific embodiment
Below with reference to embodiment, the present invention will be further explained.
A kind of novel environment friendly fire retardant felt, the mass percentage of the component and each component that are included be,
Flame-retardant cotton fiber 55 ~ 85% is impregnated,
Thermoplastic low-melt fiber 15 ~ 45%,
Three-dimensional hollow crimped fibre 0 ~ 20%,
Polyester fiber 0 ~ 40%.
The dipping flame-retardant cotton fiber is that Guanidine Sulfamate 99 impregnates flame-retardant cotton fiber.
The thermoplastic low-melt fiber sheath is co-polymerization modified polyester polymer (LMPET), and sandwich layer is conventional polyester
(PET), the fineness of thermoplastic low-melt fiber is 4 ~ 6Dtex, and length is 38 ~ 64mm.
The three-dimensional hollow crimped fibre fineness is 4 ~ 6Dtex, and length is 38 ~ 64mm.
The polyester fiber fineness is 4 ~ 6Dtex, and length is 38 ~ 64mm.
Equipment involved in the preparation of aforementioned novel environment friendly fire retardant felt include: bale opener group, mixing unit, chamber oven and
Guillotine.Bale opener group can efficiently break up low-melting fiber shredding, the accurate weighing of also controllable feed components proportion,
It is delivered to raw material in mixing unit by technical requirements proportion.The raw material weighed in proportion is uniformly mixed and is beaten by mixing unit
It dissipates, is allowed to no agglomerate phenomenon, then mixed raw material is delivered in random web-laying equipment by air duct and carries out lapping.
A kind of novel environment friendly fire retardant felt the preparation method is as follows:
The pre- shredding of thermoplastic low-melt fiber, and in proportion with dipping flame-retardant cotton fiber, three-dimensional hollow crimped fibre, polyester fiber
It is mixed respectively via four electronics bale opener feedings, then by mixing unit convoying curtain by mixed feedstock transportation to refined opener
It carries out shredding to break up, subsequently into hopper, the output speed of random web-laying equipment is adjusted, by speed control in 2 ~ 8m/s, by lapping
Molding raw material is sent into baking oven through transition curtain, and oven temperature is set in 180 ~ 230 DEG C, and web plate gauge is arranged in 10 ~ 40mm.Heat
Size as needed after type is moulded into be cut off with guillotine.
Wherein impregnate flame-retardant cotton fiber the preparation method is as follows:
Guanidine Sulfamate 99 is deployed into the aqueous solution that concentration is 9 ~ 15%, Guanidine Sulfamate 99 solution is added in steeper, it will be to
The cotton block of processing is placed in the container, is taken out and is drained after impregnating 10 ~ 24 hours, be placed under sunlight dry 24 hours or
Dry 5 ~ 10min in 100 ~ 150 DEG C of baking ovens, through being broken up by opener after cotton block is dry, it is fine that shredding impregnates retardant cotton
Dimension length is 10 ~ 50mm, stand-by with automatic packing machine great achievement cotton packet after shredding.
Embodiment 1
By mass percentage be respectively 62% dipping flame-retardant cotton fiber, 18% thermoplastic low-melt fiber, in 5% three-dimensional
Empty polyester fiber, 15% polyester fiber mixing after carry out high speed shredding and break up, then carry out networking baking, wherein baked temperature
It is 210 DEG C, cold forming is carried out according to product requirement shape after the completion of baking, type is made.
Embodiment 2
By mass percentage be respectively 60% dipping flame-retardant cotton fiber, 25% thermoplastic low-melt fiber, in 5% three-dimensional
High speed shredding is carried out after empty polyester fiber, the mixing of 10% polyester fiber to break up, and then carries out networking baking, wherein baked temperature is
200 DEG C, cold forming is carried out according to product requirement shape after the completion of baking, type is made.
Embodiment 3
It is respectively 45% dipping flame-retardant cotton fiber, 35% thermoplastic low-melt fiber, 20% polyester fiber by mass percentage
High speed shredding is carried out after mixing to break up, then carries out networking baking, and wherein baked temperature is 210 DEG C, according to production after the completion of baking
Product require shape to carry out cold forming and type are made.
Embodiment 4
By mass percentage be respectively 70% dipping flame-retardant cotton fiber, 18% thermoplastic low-melt fiber, in 12% three-dimensional
High speed shredding is carried out after empty polyester fiber mixing to break up, then carries out networking baking, and wherein baked temperature is 195 DEG C, has been baked
Type is made according to the progress cold forming of product requirement shape at rear.
In aforementioned four embodiment, it is as follows finally to carry out the molding concrete operations of cold forming system:
Product after the completion of baking is placed on the hydraulic four columns blanking machine of GW-, is cut needed for fire retardant felt is die-cut to by mould with flat knife
Shape.
Alternatively, the product after the completion of baking is toasted 100s in 250 DEG C of baking ovens, then the fire retardant felt after baking is placed in
Compression moulding in mold is finally placed in corresponding cubing and carries out cooling, deburring, inspection and fill packet.
Guanidine Sulfamate 99 is used in the present invention as fire retardant to change the cracking reaction course of cotton fabric, promote cotton fabric
Charing, reduce the life smoke etc. of combustion process, safety and environmental protection, excellent flame retardancy.Several comparative examples presented below are to prove
Select advantage of the Guanidine Sulfamate 99 as fire retardant.
Comparative example 1: using ammonium polyphosphate as fire retardant
1.1 are deployed into ammonium polyphosphate the aqueous solution that concentration is 15%, and ammonium polyphosphate solution is added in steeper, will be wait locate
The cotton block of reason is placed in the container, is taken out and is drained after impregnating 24 hours, and is placed under sunlight 24 hours or 150 dry
Dry 10min in DEG C baking oven；Through being broken up by opener after cloth is dry, shredding flame-retardant cotton fiber length in 10 ~ 50mm,
It is stand-by that with automatic packing machine cotton packet is packaged into after shredding.Every packet cotton packet weight is in 80 ~ 150Kg.
1.2 by dipping flame-retardant cotton fiber, 18% thermoplastic low-melt that mass percentage is respectively prepared by 70% step 1.1
High speed shredding is carried out after fiber, the mixing of 12% three-dimensional hollow polyester fiber to break up, and then carries out networking baking, wherein baked temperature
It is 195 DEG C, cold forming is carried out according to product requirement shape after the completion of baking, type is made.
1.3 detect the level and Vertical Flame performance of fibrofelt respectively, through detecting, horizontal flame retardant property (GB8410 mark
It is quasi-): burning velocity 75mm/min, contrast standard value 100mm/min are qualified；Vertical Flame (UL94-V0), burns fixture, no
It is qualified.
Comparative example 2: using ammonium polyphosphate as fire retardant, ammonium polyphosphate concentration of aqueous solution is adjusted
2.1 are deployed into ammonium polyphosphate the aqueous solution that concentration is 30%, and ammonium polyphosphate solution is added in steeper, will be wait locate
The cotton block of reason is placed in the container, is taken out and is drained after impregnating 24 hours, and is placed under sunlight 24 hours or 150 dry
Dry 10min in DEG C baking oven；Through being broken up by opener after cloth is dry, shredding flame-retardant cotton fiber length in 10 ~ 50mm,
It is stand-by that with automatic packing machine cotton packet is packaged into after shredding.Every packet cotton packet weight is in 80 ~ 150Kg.
2.2 by dipping flame-retardant cotton fiber, 18% thermoplastic low-melt that mass percentage is respectively prepared by 70% step 2.1
High speed shredding is carried out after fiber, the mixing of 12% three-dimensional hollow polyester fiber to break up, and then carries out networking baking, wherein baked temperature
It is 195 DEG C, cold forming is carried out according to product requirement shape after the completion of baking, type is made.
2.3 detect the level and Vertical Flame performance of fibrofelt respectively, through detection level flame retardant property (GB8410 standard):
Burning velocity 30mm/min, contrast standard value 100mm/min are qualified；Detect Vertical Flame (UL94-V0), take 5 it is parallel
Sample, it is unqualified from burning fixture after fire.
Comparative example 3: addition fire resistance fibre
The fire resistance fibre is terylene fire resistance fibre, and fineness is 4 ~ 6Dtex, and length is 51 ~ 64mm.
3.1 are deployed into ammonium polyphosphate the aqueous solution that concentration is 30%, and ammonium polyphosphate solution is added in steeper, will
Cotton block to be processed is placed in the container, is taken out and is drained after impregnating 24 hours, and be placed under sunlight dry 24 hours or
Dry 10min in 150 DEG C of baking ovens, through being broken up by opener after cloth is dry, shredding flame-retardant cotton fiber length 10~
50mm, it is stand-by with looking for chartered plane to break into cotton packet automatically after shredding.Every packet cotton packet weight is in 80~150kg.
3.2 by mass percentage be respectively 70% step 3.1 prepare dipping flame-retardant cotton fiber, 18% thermoplasticity eutectic
Point fiber, 12% fire resistance fibre mixing after carry out high speed shredding break up, then carry out networking baking, wherein baked temperature be 195
DEG C, cold forming is carried out according to product requirement shape after the completion of baking, type is made.
3.3 detect the level and Vertical Flame performance of fibrofelt respectively, fire-retardant (GB8410 standard) through detection level: burning
Speed 0mm/min, contrast standard value 100mm/min are qualified；It detects Vertical Flame (UL94-V0), takes 5 Duplicate Samples, wherein
2 qualifications, 3, from fixture is still burnt after fire, determine unqualified.
Comparative example 4: the adding proportion of fire resistance fibre is adjusted
The fire resistance fibre is terylene fire resistance fibre, and fineness is 4 ~ 6Dtex, and length is 51 ~ 64mm.
4.1 are deployed into ammonium polyphosphate the aqueous solution that concentration is 30%, and ammonium polyphosphate solution is added in steeper, will
Cotton block to be processed is placed in the container, is taken out and is drained after impregnating 24 hours, and be placed under sunlight dry 24 hours or
Dry 10min in 150 DEG C of baking ovens, through being broken up by opener after cloth is dry, shredding flame-retardant cotton fiber length 10~
50mm, it is stand-by with looking for chartered plane to break into cotton packet automatically after shredding.Every packet cotton packet weight is in 80~150kg.
4.2 by dipping flame-retardant cotton fiber, 18% thermoplastic low-melt that mass percentage is respectively prepared by 50% step 4.1
Fiber, 32% fire resistance fibre mixing after carry out high speed shredding break up, then carry out networking baking, wherein baked temperature be 195
DEG C, cold forming is carried out according to product requirement shape after the completion of baking, type is made.
4.3 detect the level and Vertical Flame performance of fibrofelt respectively, fire-retardant (GB8410 standard) through detection level: burning
Speed 0mm/min, contrast standard value 100mm/min are qualified；It detects Vertical Flame (UL94-V0), takes 5 Duplicate Samples, not
Fixture is burnt, it is qualified.
The embodiment of the present invention 5: using Guanidine Sulfamate 99 as fire retardant
5.1 are deployed into Guanidine Sulfamate 99 the aqueous solution that concentration is 15%, and Guanidine Sulfamate 99 solution is added in steeper, will
Cotton block to be processed is placed in the container, is taken out and is drained after impregnating 24 hours, and is placed in drying 24 hours under sunlight, or
Dry 10min in 150 DEG C of baking ovens, through being broken up by opener after cloth is dry, shredding flame-retardant cotton fiber length 10 ~
50mm, breaks into automatic packing machine that cotton packet is stand-by, and every packet cotton packet weight is in 80 ~ 150Kg after shredding.
5.2 by dipping flame-retardant cotton fiber, 18% thermoplastic low-melt that mass percentage is respectively prepared by 70% step 5.1
High speed shredding is carried out after fiber, the mixing of 12% three-dimensional hollow polyester fiber to break up, and then carries out networking baking, wherein baked temperature
It is 195 DEG C, cold forming is carried out according to product requirement shape after the completion of baking, type is made.
5.3 detect the level and Vertical Flame performance of fibrofelt respectively, fire-retardant (GB8410 standard) through detection level: burning
Speed 0mm/min, contrast standard value 100mm/min are qualified；It detects Vertical Flame (UL94-V0), 5 Duplicate Samples is taken, from fire
Self-extinguishment does not burn fixture, qualified.
Although it is qualified to detect anti-flammability in above-mentioned comparative example 4, since fire resistance fibre is at high cost, and to reach qualified resistance
Combustion property dosage is big, causes material cost to be substantially increased, cost performance is low, does not have the market competitiveness.And the embodiment of the present invention 5 was both protected
Anti-flammability detection qualification is demonstrate,proved, material cost also controls in customer's tolerance interval.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of novel environment friendly fire retardant felt, it is characterised in that: the mass percentage of the component and each component that are included is,
Flame-retardant cotton fiber 55 ~ 85% is impregnated,
Thermoplastic low-melt fiber 15 ~ 45%,
Three-dimensional hollow crimped fibre 0 ~ 20%,
Polyester fiber 0 ~ 40%.
2. a kind of novel environment friendly fire retardant felt according to claim 1, it is characterised in that: the dipping flame-retardant cotton fiber is ammonia
Base sulfonic acid guanidine impregnates flame-retardant cotton fiber.
3. a kind of novel environment friendly fire retardant felt according to claim 1, it is characterised in that: the thermoplastic low-melt fiber table
Layer is random copolymerization modified polyester polymer, and sandwich layer is conventional polyester；The fineness of thermoplastic low-melt fiber is 4 ~ 6Dtex, long
Degree is 38 ~ 64mm.
4. a kind of novel environment friendly fire retardant felt according to claim 1, it is characterised in that: the three-dimensional hollow crimped fibre is thin
Degree is 4 ~ 6Dtex, and length is 38 ~ 64mm.
5. a kind of novel environment friendly fire retardant felt according to claim 1, it is characterised in that: the polyester fiber fineness be 4 ~
6Dtex, length are 38 ~ 64mm.
6. a kind of preparation method of the described in any item novel environment friendly fire retardant felts of claim 1-5, it is characterised in that: including as follows
Step:
The pre- shredding of thermoplastic low-melt fiber, and in proportion with dipping flame-retardant cotton fiber, three-dimensional hollow crimped fibre, polyester fiber
It is mixed respectively via four electronics bale opener feedings, then by mixing unit convoying curtain by mixed feedstock transportation to refined opener
It carries out shredding to break up, subsequently into hopper, the output speed of random web-laying equipment is adjusted, by speed control in 2 ~ 8m/s, by lapping
Molding raw material is sent into baking oven through transition curtain, and oven temperature is set in 180 ~ 230 DEG C, and web plate gauge is arranged in 10 ~ 40mm.
7. a kind of preparation method of novel environment friendly fire retardant felt according to claim 6, it is characterised in that: the dipping is fire-retardant
Cotton fiber the preparation method is as follows:
Guanidine Sulfamate 99 is deployed into the aqueous solution that concentration is 9 ~ 15%, Guanidine Sulfamate 99 solution is added in steeper, it will be to
The cotton block of processing is placed in the container, is taken out and is drained after impregnating 10 ~ 24 hours, be placed under sunlight dry 24 hours or
Dry 5 ~ 10min in 100 ~ 150 DEG C of baking ovens, through being broken up by opener after cotton block is dry, it is fine that shredding impregnates retardant cotton
Dimension length is 10 ~ 50mm, stand-by with automatic packing machine great achievement cotton packet after shredding.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111218771A (en) * | 2020-01-19 | 2020-06-02 | 重庆驰超科技有限公司 | Basalt sound-absorbing heat-insulating cotton and manufacturing process thereof |
| CN114592281A (en) * | 2020-12-31 | 2022-06-07 | 苏州爱美纤维科技有限公司 | Preparation method of non-woven material |
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