CN102109508B - Rapid evaluation method of flame retardant property of fiber - Google Patents
Rapid evaluation method of flame retardant property of fiber Download PDFInfo
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- CN102109508B CN102109508B CN2010105715163A CN201010571516A CN102109508B CN 102109508 B CN102109508 B CN 102109508B CN 2010105715163 A CN2010105715163 A CN 2010105715163A CN 201010571516 A CN201010571516 A CN 201010571516A CN 102109508 B CN102109508 B CN 102109508B
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Abstract
The invention relates to a rapid evaluation method of flame retardant property of fiber, and belongs to the field of textile materials. The method comprises the following steps: carding the fiber for times by utilizing a fiber mixer to obtain an evenly mixed and straight fiber sheet, and shearing the fiber sheet into a segment with the length of about 15-20cm; weighing 0.4-0.8g of the fiber sheet; laying the fiber sheet on a glass plate, taking a steel wire as a core, rolling and kneading the fiber sheet for 3-6 circles along the length direction so that the fiber sheet is compact, and drawing out the steel wire to obtain a thick sliver; clamping two ends of the thick sliver by utilizing two clips, fixing one of the clips, rotating the other clip for twisting the thick sliver to obtain two-fold yarns, and winding the two-fold yarns by utilizing a thin steel wire to obtain a burning sample; and carrying out a vertical burning test on the obtained sample on an alcohol lamp, and recording a burning result. The rapid evaluation method is convenient, rapid, time-saving and cost-saving; and by utilizing the method, the flame retardant property of fabrics blended with one or more flame-retardant fiber can be rapidly evaluated by utilizing simple tools and devices in a laboratory.
Description
Technical field
The present invention relates to a kind of fast appraisement method of fiber fire resistance, belong to the textile material field.
Background technology
According to statistics, owing to the not fire-retardant fire that causes of textile accounts for fire the over half of sum taken place.Therefore study the textile flame-retarded technology, the exploitation flame retardant textiles just seems very important.And well behaved flame retardant textiles often adopts multiple essential fire resistance fibre, forms through spinning, weaving through different blending rates.Therefore, grasp the goods fire resistance under different essential fire resistance fibres and the blending rate thereof fast, be rationally the essential fire resistance fibre of utilization, rationally confirm the necessary means of blending rate.
Promulgation both at home and abroad connect textile combustion method for testing performance such as flame frequency method such as oxygen index method, vertical combustion method, 45 °, all be the test method of textile fire resistance, and the staple in bulk burning performance still do not had evaluation method.If each experiment all is made into cloth with the fiber spun yarn, then experimental period is very long, and cost is very high.
Therefore, in order to shorten experimental period, reduce cost, the fast appraisement method of developing a kind of staple in bulk burning performance becomes those skilled in the art's urgent problem.
Summary of the invention
A kind of fiber fire resistance fast appraisement method that the objective of the invention is to be directed against the deficiency of staple in bulk fire resistance evaluation method and propose.
Above-mentioned purpose of the present invention realizes through following technical scheme:
A kind of fast appraisement method of fiber fire resistance, its step is following:
1) fiber mixing: fiber with repeatedly combing of fibre blender (for example YG232 type), is processed even, the straight thin slice of fiber mixing, sheets of fibres is cut into length is approximately 15～20cm centimetre section;
2) sheets of fibres is weighed: take by weighing the sheets of fibres that weight is 0.4～0.8g;
3) sheets of fibres is processed the rove yarn: the sheets of fibres that weighs up is tiled on the glass plate, is core with the steel wire, rubs 3～6 circles with the hands along fibre length direction volume and makes it closely knit, extracts steel wire out, obtains the rove bar;
4) twisting of the rove yarn of gained is made twin wire: the two ends of clamping the rove bar with two clips; Fixing clip rotates another clip and twists to converted top, with the whole twisting of hand adjustment homogeneity; Add and be twisted into twin wire, twin wire is twined with finer wire make burning sample;
5) sample with gained carries out the vertical combustion experiment on spirit lamp, record burning result.This combustion phenomena has good consistance with the combustion phenomena of being weaved the lining after the dyeing and finishing by identical fibre spinning.
A kind of optimized technical scheme is characterized in that: described fiber is the amalgam of several kinds of fibers, and composite fibre is tentatively mixed with hand after needing to weigh in proportion earlier, and the reprocess fibre mixer is processed sheets of fibres.
A kind of optimized technical scheme is characterized in that: described sheets of fibres is of a size of 15～20cm * 10～13cm.
A kind of optimized technical scheme is characterized in that: in the step 3), described gauge of wire is 2mm, and length is 20～25cm.
A kind of optimized technical scheme is characterized in that: described add to be twisted as rove yarn two ends are clamped with clip, fixing one of them clip rotates another clip, adds when being twisted to 8～10 turns, with the twisting homogeneity of the whole sliver of hand adjustment; After continuing to add 10～35 turns again, from the middle doubling of sliver; According to the twisting degree of fibrous bundle, 6～20 turns are twisted on every limit again, and this unanimity of both sides twisting base makes converted top tight, makes twin wire.
A kind of optimized technical scheme is characterized in that: in the step 4), described finer wire diameter is 0.7mm, and the winding direction of finer wire is opposite with the twist direction of twin wire.
A kind of optimized technical scheme is characterized in that: the winding spacing of said finer wire is 0.4～1.2cm.When described fiber was the meltbility fiber, the winding spacing of finer wire was 0.4～0.7cm; When described fiber was non-meltbility fiber, the winding spacing of finer wire was 0.8～1.2cm.
A kind of optimized technical scheme; It is characterized in that: described vertical combustion experiment clamps sample opening one end with tweezers to make burning sample vertical for regulating the spirit lamp flame height about 3.5～4.0cm, burns at the spirit lamp flame envelope; The length of burning sample in flame envelope is about 0.8cm; Contact flame was removed burning sample after 12 seconds, combustion positions such as record after flame time, the time of glowing, charcoal length.The sample twist length of being the burning contrast experiment is consistent basically.
According to the scheme of being mixed, take by weighing fiber in proportion, with hand fiber is tentatively mixed earlier, with fibre blender fiber mixing is become the uniform fibers thin slice then, sheets of fibres is weighed, and the weight of controlling each sample is between 0.4～0.8g.Actual state when fibre weight kicks the beam or fired state departs from the fabric burning when overweight influences the accuracy of experimental result.
Advantage of the present invention is:
1, convenient, fast, save time, practice thrift cost, promptly just can make evaluation with simple tools and device to the fire resistance of the single fire resistance fibre or the fire resistance fibre that is mixed in the laboratory.
2, staple in bulk is processed the thick line shape more near the combustion position of fabric.Twined steel wire outward and there is factory that staple in bulk is made the candle shape in the past; The inner staple in bulk fire resistance of making core of steel wire; The simulation experiment method of standard preparation method of sample and burning condition not; There is steel wire its inside, and the deviation of converted top burning result own is very big, and is obvious with the difference of the actual fire resistance of fabric.
3, this method also can be used for estimating the fire resistance fibre handling property of anti-the dyeing and finishing.According to flame-retardant textile dyeing and finishing technology and the condition that will pass through, handle fire resistance fibre in the laboratory with identical process conditions, do combustion experiment in order to last method again, thereby can obtain the dyeing and finishing condition whether fiber can stand.
Through embodiment the present invention is done further elaboration below, but and do not mean that restriction protection domain of the present invention.
Embodiment
Embodiment 1
(1) gets aramid fiber, tentatively mix, then aramid fiber is processed straight, uniform fibers thin slice with fibre blender (like YG232 fiber type mixer) combing with hand.Along fibre blender card wire direction sheets of fibres is taken off gently; Be tiled on the glass plate, sheets of fibres is cut into the fibre plate that size is about 20cm * 12cm, weighing makes sheets of fibres weight at 0.4g; Along the fibre length direction sheets of fibres is rolled into column type with diameter 2mm, the steel wire that is about 20cm; And rub 5 circles with the hands and make it closely knit, then steel wire is extracted out, make the rove bar.
(2) clamp with clip at rove bar two ends, and a clip is fixed, and rotates another clip and give the twisting of rove yarn.Add when being twisted to 8～10 turns, with the homogeneity of the whole sliver twisting of hand adjustment; Continue to add doubling behind 12～20 turns again, look the degree of sliver twisting, 8～20 turns (both sides twisting base this) are twisted on every limit again, make the twin wire sample then.Finer wire with the 0.7mm diameter twines, and 8～10 millimeters of spacings are made the burning sample that thin wire twines.The sample length of doing combustion experiment is 7.5～8.5cm.
(3) regulate the spirit lamp flame height about 3.8 centimetres, clamp one of sample opening with tweezers and make samples vertical, in the burning of spirit lamp flame envelope, the length of sample in flame envelope is about 0.8cm.Contact flame was removed sample after 12 seconds, burning results' such as record afterflame, duration of fire resistance, char length data.
Burning test result is as shown in the table.The regular test result of the fabric of processing with identical fiber and the result that this method records have good consistance.
Embodiment 2
(1) presses the mixed of aramid fiber/melamine fiber percentage by weight 65/35 and take by weighing aramid fiber/melamine fiber, then aramid fiber is processed straight, the uniform thin slice of fiber with the fibre blender combing than design.Direction along withdrawing from card wire is taken off sheets of fibres gently; Be tiled on the glass plate, sheets of fibres is cut into the fibre plate that size is about 18cm * 12cm, weighing makes sheets of fibres weight at 0.6 gram; Along the fibre length direction sheets of fibres is rolled into column type with diameter 2mm, the steel wire that is about 20cm; And rub 6 circles with the hands and make it closely knit, then steel wire is extracted out, make the rove yarn.
(2) clamp with clip at rove yarn two ends, and a clip is fixed, and rotates another clip and give the twisting of rove bar.Add when being twisted to 8～10 turns, with the homogeneity of the whole sliver twisting of hand adjustment; Continue to add doubling behind 12～20 turns again, look the tightness degree of sliver twisting, 8～20 turns (both sides twisting base this) are twisted on every limit again, make the bigger twin wire sample of the twist then.Thin wire with the 0.7mm diameter twines, and spacing 8～10mm makes the burning sample that thin wire twines.The sample length of doing combustion experiment is 7.5～8.5cm.
(3) regulate the spirit lamp flame height about 3.8cm, clamp one of sample opening with tweezers and make samples vertical, in the burning of spirit lamp flame envelope, the length of sample in flame envelope is about 0.8cm.Contact flame was removed sample after 12 seconds, burning results' such as record afterflame, duration of fire resistance, char length data.
Burning test result is as shown in the table.The regular test result of the fabric of processing with identical fiber and the result that this method records have good consistance.
Embodiment 3
(1) according to above-mentioned experimental program, aramid/fire-retardant viscose/fire-retardant polyvinyl/Vinyon N 15/15/35/35 is taken by weighing fiber by weight percentage, with hand fiber is tentatively mixed earlier, with fibre blender that fiber mixing is even then, process the ribbon-like fibre thin slice.
(2) sheets of fibres is tiled on the glass plate; Sheets of fibres is cut into the length of 19cm, and forming size is the fibre plate about 19cm * 10～13cm, and weighing makes sheets of fibres weight at 0.5g; Be about the 22cm hard wire with diameter 2mm and be rolled into converted top along the fibre length direction; Rub 6 circles with the hands, then steel wire is extracted out, make the rove bar.
(3) with clip rove bar two is clamped, fix a clip, rotate another clip and give the twisting of rove bar, the twist size of total twisting is 30～35 sth. made by twisting.About twisting earlier 10 is twisted with the fingers, save the homogeneity of whole wool top twisting with hand adjustment, about continuing twisting 20 and twisting with the fingers after, doubling in the middle of the sliver, the tightness degree according to after the converted top twisting continues twisting, makes the fiber twin wire.The length of combustion experiment sample is 85 millimeter, and with the finer wire winding of 0.7mm diameter, 8～10 millimeters of finer wire spacings make the wool top that finer wire twines.
(4) regulate the spirit lamp flame height about 3.8 centimetres, clamp one of above-mentioned wool top sample opening with tweezers and make samples vertical, in the burning of spirit lamp flame envelope, the length of sample in flame envelope is about 0.8 centimetre.Contact flame was removed sample after 12 seconds, burning results such as record afterflame, duration of fire resistance, char length.
The burning result:
Fire resistance fibre performance fast appraisement method of the present invention mixes with simple tools one or more staple in bulks with constant weight, makes sheets of fibres; The arrangement and add certain twist after become rove; Twin wire is twisted in doubling, twines finer wire outward, is made into burning sample; Do the vertical combustion experiment with spirit lamp, obtain the result of burning.Therefore, the inventive method is convenient, fast, save time, practice thrift cost, and promptly the fabrics flame resistance performance after the laboratory just can be mixed to a kind of fire resistance fibre or multiple fiber with simple tools and device is made quick evaluation.
Claims (7)
1. the fast appraisement method of a fiber fire resistance, its step is following:
1) fiber mixing: fiber with repeatedly combing of fibre blender, is processed even, the straight thin slice of fiber mixing, with sheets of fibres be cut into length be 15～20 centimetres the section;
2) sheets of fibres is weighed: take by weighing the sheets of fibres that weight is 0.4～0.8g;
3) sheets of fibres is processed the rove yarn: the sheets of fibres that weighs up is tiled on the glass plate, is core with the steel wire, rubs 3～6 circles with the hands along fibre length direction volume and makes it closely knit, extracts steel wire out, obtains the rove yarn;
4) the rove yarn twisting with gained makes twin wire: rove yarn two ends are clamped with clip, and fixing one of them clip rotates another clip, adds when being twisted to 8～10 turns, with the twisting homogeneity of the whole sliver of hand adjustment; After continuing to add 10～35 turns again, from the middle doubling of sliver; According to the twisting degree of fibrous bundle, 6～20 turns are twisted on every limit again, and this unanimity of both sides twisting base is made twin wire; Twin wire is made burning sample with the finer wire winding;
5) sample with gained carries out the vertical combustion experiment on spirit lamp, record burning result.
2. the fast appraisement method of fiber fire resistance according to claim 1 is characterized in that: described fiber is the amalgam of several kinds of fibers, and composite fibre is tentatively mixed with hand after needing to weigh in proportion earlier, and the reprocess fibre mixer is processed sheets of fibres.
3. the fast appraisement method of fiber fire resistance according to claim 1 is characterized in that: described sheets of fibres is of a size of 15～20cm * 10～13cm.
4. the fast appraisement method of fiber fire resistance according to claim 1 is characterized in that: described gauge of wire is 2mm, and length is 20～25cm.
5. the fast appraisement method of fiber fire resistance according to claim 1 is characterized in that: described finer wire diameter is 0.7mm, and the winding direction of finer wire is opposite with the twist direction of twin wire.
6. the fast appraisement method of fiber fire resistance according to claim 1 is characterized in that: the winding spacing of said finer wire is 0.4～1.2cm.
7. the fast appraisement method of fiber fire resistance according to claim 1; It is characterized in that: described vertical combustion experiment clamps sample opening one end with tweezers to make burning sample vertical for regulating the spirit lamp flame height at 3.5～4.0cm, burns at the spirit lamp flame envelope; The length of burning sample in flame envelope is about 0.8cm; Contact flame was removed burning sample after 12 seconds, record burning result.
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| CN2010105715163A CN102109508B (en) | 2010-11-29 | 2010-11-29 | Rapid evaluation method of flame retardant property of fiber |
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| CN2010105715163A CN102109508B (en) | 2010-11-29 | 2010-11-29 | Rapid evaluation method of flame retardant property of fiber |
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| CN102109508A CN102109508A (en) | 2011-06-29 |
| CN102109508B true CN102109508B (en) | 2012-05-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103592410B (en) * | 2013-11-12 | 2015-12-16 | 成都海蓉特种纺织品有限公司 | Auxiliary frame of narrow fabric combustion tester |
| CN105259297A (en) * | 2015-10-12 | 2016-01-20 | 肇庆俊富纤网材料有限公司 | Testing method of fiber flame-retardant performance |
| CN113075350A (en) * | 2020-01-03 | 2021-07-06 | 应急管理部化学品登记中心 | Method and device for testing inflammability of fibrous or strip-shaped solid substance |
| CN111308010B (en) * | 2020-03-18 | 2022-04-19 | 福建省特种设备检验研究院 | Coal-fired coupled solid waste mixable combustion performance comparison and multi-dimensional evaluation method |
| CN113029721B (en) * | 2021-03-12 | 2022-07-12 | 莱州市电子仪器有限公司 | Fiber combustion sample preparation machine |
| CN114636784B (en) * | 2022-03-09 | 2023-09-01 | 安徽工程大学 | Method and equipment for testing and evaluating combustion performance of down feather |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0375113A2 (en) * | 1988-12-22 | 1990-06-27 | Springs Industries Inc. | Corespun yarn for fire resistant safety apparel and method |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0375113A2 (en) * | 1988-12-22 | 1990-06-27 | Springs Industries Inc. | Corespun yarn for fire resistant safety apparel and method |
Non-Patent Citations (2)
| Title |
|---|
| 李利君等.耐高温阻燃防护服研究进展.《消防技术与产品信息》.2009,(第4期),12-15. * |
| 王玉丰等.纯棉织物无甲醛阻燃整理.《印染》.2009,(第2期),35-37. * |
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