CN211848268U - Ultra-long fiber spinnable yarn for thermal protection material - Google Patents
Ultra-long fiber spinnable yarn for thermal protection material Download PDFInfo
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- CN211848268U CN211848268U CN202020232998.9U CN202020232998U CN211848268U CN 211848268 U CN211848268 U CN 211848268U CN 202020232998 U CN202020232998 U CN 202020232998U CN 211848268 U CN211848268 U CN 211848268U
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Abstract
The utility model relates to a yarn can be spun to extra long fibre for thermal protection material. The spinnable yarn is provided with the thermal protection material extra-long fibers with the length of 102-120mm, and the thermal protection material extra-long fibers are entangled and twisted to form the spinnable yarn. The fiber length is very long (longer than medium long fiber by more than 100%, the fiber end is reduced by more than 50%), the strength can be improved by more than 20% compared with the yarn with the same specification, neps and hairiness are less, and the yarn levelness is better.
Description
Technical Field
The utility model relates to a yarn or line of pure spinning or blending, especially a yarn can be spun to extra long fiber for thermal protection material.
Background
The high-new performance thermal protection material mainly comprises aramid fiber, flame-retardant acrylic, carbon fiber, polyimide, flame-retardant viscose, PBO, PBI, PPS and the like. The material has the characteristics of stable high molecular weight, high temperature resistance, flame retardance, high modulus, high strength and the like, and is widely applied to the field of individual safety protection.
The process flow for preparing the spinnable yarn by adopting the materials in the traditional process is as follows: the method comprises the following steps of cutting fiber, blowing, carding (wool top), drawing, roving, spinning, shaping and producing. That is, short (38mm) and medium (51mm) fibers obtained by cutting the material filament bundle are subjected to blowing and carding processes to be made into tops, and then spun.
The blowing and carding processing processes in the spinning process of the traditional process can cause great damage to fibers, the length of the fibers is short, and the quality of spun yarns cannot obtain high-quality yarns. Some varieties bring great difficulty to subsequent weaving, dyeing and finishing and have poor quality so as not to meet the market demand. For example: the pure and blended yarns spun by the carbon fibers and the short fibers adopted at present have poor strength and poor weavability, and the produced fabrics and garments have a large amount of slag falling, thus seriously affecting the subsequent production and processing quality, polluting the environment and being healthy.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a yarn can be spun to extra long fibre for hot protective material solves the not enough that above-mentioned traditional product exists, and its fiber length extra long (longer than the long 100% of medium-length fiber, the fibre end reduces more than 50%), than can improve more than 20% with the specification yarn brute force, and nep, filoplume are still less, and the evenness is better.
In order to achieve the above purpose, the technical scheme of the utility model is that:
an extra-long fiber spinnable yarn for thermal protective materials, characterized in that: the spinnable yarn is provided with the thermal protection material extra-long fibers with the length of 102-120mm, and the thermal protection material extra-long fibers are entangled and twisted to form the spinnable yarn.
The ultra-long fiber spinnable yarn for the thermal protection material is characterized in that: the thermal protection material ultra-long fibers are more than two, and various thermal protection material ultra-long fibers are entangled and twisted to form blended spinnable yarns.
The ultra-long fiber spinnable yarn for the thermal protection material is characterized in that: the thermal protection material is characterized in that the ultra-long fiber is crimped or uncrimped aramid fiber, flame-retardant acrylic fiber, carbon fiber, polyimide, flame-retardant viscose, PBO, PBI or PPS.
The utility model has the advantages that:
1. the utility model discloses a surface fabric and its fracture brute force of clothing of yarn preparation can improve more than 20% with tear the brute force, to using the utility model discloses a high-risk operation personnel that the clothing was made to the yarn have more reliable guarantee in the operation under adverse circumstances.
2. The utility model discloses have the long fiber that is far longer than traditional cotton spinning short, well long fiber more than 2-3 times in the yarn, the fibre end reduces more than 50%, and the fibre radical improves more than 7% in the yarn with the specification, therefore the yarn brute force with the specification of making can improve more than 20%, and appearance quality such as hairiness, nep and evenness also can improve by a wide margin.
Drawings
Fig. 1 is a schematic structural diagram (pure spinning) of the spinnable yarn of the present invention.
Fig. 2 is a schematic structural diagram (blending) of the spinnable yarn of the present invention.
Detailed Description
As shown in fig. 1 and 2, the utility model discloses an extra-long fiber spinnable yarn for thermal protection material, which has extra-long fiber of thermal protection material with length of 102 and 120 mm. The ultra-long fiber of the thermal protection material adopts high and new performance thermal protection tows (crimped or uncrimped aramid fiber, flame-retardant acrylic fiber, carbon fiber, polyimide, flame-retardant viscose, PBO, PBI, PPS and the like) with the moisture regain of 7-9% and the oil content of 0.2-0.5%, and is spun into yarn.
Wherein, fig. 1 represents a pure spinning product using a high-new-performance thermal protection tow material (1 represents a yarn body, and 2 represents a thermal protection material extra-long fiber of a material). Fig. 2 represents a blended product using two (two lines of solid line and dotted line) high-novelty thermal protective tow materials (1 represents the yarn body, solid line 2 represents the thermal protective material extra long fiber of one material, dotted line 3 represents the thermal protective material extra long fiber of the other material). Of course, a blended product formed of two or more materials may also be used. The fiber of various materials in the product is required to meet the requirement of forming the ultra-long fiber of the thermal protection material with the length of 102-120 mm. Fibers of a single or several materials are formed into an entangled, twisted yarn structure by a process.
The processing method of the super-long fiber spinnable yarn for the thermal protection material is characterized in that: the method comprises the following process steps:
firstly, mechanically drawing and breaking the required high-new-performance thermal protection filament bundle to prepare 102-120mm extra-long fiber wool tops.
In the first step, the oiling rate is controlled in different proportions according to different materials and the principle of selecting a suitable oil agent (such as an antistatic carding agent T-8112 of Tianjin engineering large textile auxiliary agent Co., Ltd, an antistatic finishing agent Goon881 of Jiahong organic silicon science Co., Ltd, Dongguan city or Yakoufeng SF of Shanghai Yayun textile chemical industry Co., Ltd) is adopted, so that the drawing, breaking and slivering processes are facilitated, and the phenomenon that static electricity is generated to influence the slivering quality is avoided. The long tow drafting and breaking machine can adopt JSF 1316 tow drafting and breaking machine of Hainan ocean machinery technology Limited company or tow drafting and breaking machines of GYFA1306, GYFA318, GYFA319 and the like of Hainan ocean machinery technology Limited company.
The breaking draft zone has three main draft zones, and different draft multiplying powers and draft spacing distances are adopted for the three main draft zones so as to reduce the proportion of ultra-short and ultra-long fibers. The first drafting zone is a pre-drafting zone, preferably adopting the principle of small gauge and low drafting multiplying factor to ensure that the filament bundle obtains sufficient stretching stress to be uniform so as to facilitate the filament bundle to be broken into strips after drafting, and preferably adopting the principle that the gauge is 4 times larger than the required fiber length and the drafting multiplying factor is 1.0-2.0. The second drafting zone is a main drafting zone and is a key zone for determining the breaking rate, the large-spacing distance and the high drafting multiplying factor are used for reducing the proportion of ultra-short and ultra-long fibers, the required fiber length is 10-12 times of the spacing distance, the 4-8 times of the drafting multiplying factor is more appropriate, the third drafting zone is mainly used for controlling the ultra-long fibers, the ultra-long fibers and the small fibers can be effectively controlled within the required drafting breaking fiber length range, and the sliver forming quality is ensured.
The second step, drawing process, pure spinning and blended spinning process are different. In the second step, broken wool tops are smooth and have no crimp due to drawing, and the fiber length is very long. The pre-drawing in the blending process is based on the principle of light quantitative, multiple parallel and less parallel processes, so that the uniform mixing in the drawing process is facilitated, the quantitative deviation is small, the fiber damage is less, and the broken strips are avoided. The pure spinning and the blending are suitable.
And thirdly, spinning the wool tops with required quantitative into roving through a roving machine.
And fourthly, spinning the rough yarn into spun yarn with required specification by a spinning machine.
And fifthly, steaming and shaping the spun yarn by a yarn steaming machine.
By adopting the processing technology, the high-new-performance thermal protection material can be made into yarn with better quality, especially the yarn with better quality is subjected to drafting and breaking in the first step and sliver mixing in the second step, so that the damage to the internal fiber of the spun yarn with the same specification is greatly reduced, the fiber length is longer, the fiber end is greatly reduced, the fiber end is uniformly mixed, the yarn structure is more excellent, and the comprehensive quality of pure spinning and blended yarn is higher.
When the spinnable yarn is pure spinning yarn, the drawing process of the second step comprises head drawing and end drawing.
The drawing process parameters are as follows: the fixed weight of the head-combining wool top is 20-40g/5m, the drafting multiple is 5-10 times, the roller gauge is mm140 x 220, and the vehicle speed is 180-; the final drafting multiple is 5-10 times, the roller gauge is mm140 × 220, and the vehicle speed is 180-.
When the spinnable yarn is blended spun yarn, the drawing process of the second step comprises pre-drawing, head drawing and end drawing;
the pre-drawing is to adjust the quantitative of the high and new performance thermal protection drafting broken long fiber wool which needs to be blended according to the pre-drawing.
The parameters of the pre-drawing process are as follows: the weight of the wool tops is 20-40g/5m, the number of the combined wool tops is 5-10, the drafting multiple is 5-10 times, the roller gauge is mm140 x 220, and the vehicle speed is 180-;
the drawing process parameters are as follows: the fixed weight of the head-combining wool top is 20-40g/5m, the drafting multiple is 5-10 times, the roller gauge is mm140 x 220, and the vehicle speed is 180-; the final drafting multiple is 5-10 times, the roller gauge is mm140 × 220, and the vehicle speed is 180-.
The utility model discloses a mixed yarn specification as follows:
1. the yarn count range is 58.31tex/1 or 58.31 tex/2-5.831 tex/1 or 5.831tex/2.
2. The proportion range of the blended yarn is as follows:
(1) blended yarn 1
25-75% of aramid fiber and 75-25% of flame-retardant viscose.
(2) Blended yarn 2
25 to 75 percent of aramid fiber and 75 to 25 percent of flame-retardant acrylic fiber.
(3) Blended yarn 3
30-70% of flame-retardant acrylic and 70-30% of viscose.
(4) Blended yarn 4
40 to 60 percent of carbon fiber and 60 to 40 percent of flame-retardant adhesive
The blending modes are all that the ultra-long fiber wool tops are formed by respectively stretching and breaking different material tows, and then the wool tops are mixed and spun in the drawing process according to the required blending proportion to form the required blended yarns.
The first step of break drafting has three main drafting areas which are respectively: the first drafting and breaking zone spacing is 200-.
The roving process parameters in the third step are as follows: the twist coefficient is 26-32, the drafting multiple is 6-10, the roller gauge is mm130 x 220, the speed is 1800-.
The spun yarn process parameters in the fourth step are as follows: yarn count is 18.45tex, draft multiple is 26-34 times, back draft multiple is 1.00-1.18, twist coefficient is 160-.
The invention will be further described with reference to specific embodiments as follows:
example 1
The main process steps for spinning 18.45tex 100% aramid yarn are as follows:
(1) process flow
Filament bundle drafting and breaking machine-BCM 102 drawing frame (head and body combination) -BCM102 drawing frame (tail and body combination) -FB477 roving frame-B519 spinning frame-yarn steaming machine-self doffing machine-package
(2) Process parameters
a. Drawing, breaking and sliver making process: the specification of the aramid fiber filament bundle is 80-100g/m, the distance of the first drafting zone is 500mm, and the drafting multiple is 1.07. The second drafting zone has a distance of 147mm and a drafting multiple of 6-7.5. The third drafting zone has a distance of 110-130mm and a drafting multiple (multiple) of 6-7.5. The vehicle speed is 30 m/min. The weight of the produced sliver is 6.5g/m, and the main length of the wool top fiber is 120 mm.
b. Drawing process:
and (3) head combination: the quantitative determination of wool tops is 24.0g/5m, the combined number is 6, the drafting multiple is 8.13, the roller gauge is mm140 x 155, and the vehicle speed is 210 m/min.
And (3) performing final combination: the quantitative determination of wool tops is 21.0g/5m, the combined number is 7, the drafting multiple is 8.2, the roller gauge is mm140 x 158, and the vehicle speed is 220 m/min.
c. The roving process comprises the following steps: the quantitative weight of wool top is 50g/10m, the twist coefficient is 36, the drafting multiple is 8.4, the roller gauge is 147-160 mm, and the rotating speed of the front roller is 310 r/min.
d. The spinning process comprises the following steps: 18.45tex of yarn count, 28.5 of draft multiple, 1.13 of back draft multiple, 220 of twist coefficient, 145-158 of roller gauge mm, 230r/mim of front roller rotating speed,
e. a yarn steaming process: circulating for 1, at the temperature of 90 ℃, and under the negative pressure of 200mb for 8 min; and (3) circulating for 2, at the temperature of 100 ℃, under the negative pressure of 240mb, and for 30 min.
The yarn quality indexes are as follows:
drawing and breaking spinning:
traditional short fiber spinning:
example 2.
The main process for spinning the 18.45tex 60% aramid fiber 40% carbon fiber blended yarn comprises the following steps:
(1) process flow
Filament bundle drafting and breaking machine-BCM 102 drawing frame (pre-drawing) -BCM102 drawing frame (head drawing) -BCM102 drawing frame (final drawing) -FB477 roving frame-B519 spinning frame-steaming machine-self-doffing machine-packaging
(2) Process parameters
a. Drawing, breaking and sliver making process: the specification of the aramid fiber filament bundle is 80-100g/m, the distance of the first drafting zone is 500mm, and the drafting multiple (times) is 1.07. The second drafting zone has a distance of 147mm and a drafting multiple of 6-7.5. The third drafting zone has a spacing of 110-130mm and a drafting multiple (multiple) of 2.0-3.5. The vehicle speed is 30 m/min. The weight of the produced sliver is 6.5g/m, and the main length of the wool top fiber is 120 mm.
The specification of the carbon fiber filament bundle is 80-100g/m, the distance of the first drafting zone is 450mm, and the drafting multiple (times) is 1.05. The space distance of the second drafting zone is 1470mm, and the drafting multiple is 5.5-7.0. The distance between the third drafting zones is 110-130mm, and the drafting multiple (times) is 1.8-3.0. The vehicle speed is 30 m/min. The weight of the drawn sliver is 6.5g/m, and the main length of the fiber is 120 mm.
b. Drawing process:
pre-merging: the quantitative determination of the aramid fiber wool top is 29.25g/5m, the combined number is 6, the drafting multiple is 6.67, the roller gauge is mm140 x 155, and the vehicle speed is 210 m/min.
And (3) head combination: the quantitative determination of the aramid fiber/carbon fiber mixed wool top is 30g/5m, the number of the aramid fiber/carbon fiber mixed wool tops is 8, the number of the aramid fiber wool tops is 5, the number of the carbon fiber wool tops is 3, the drafting multiple is 8.15, the roller gauge is mm140 x 155, and the vehicle speed is 210 m/min.
And (3) performing final combination: the aramid fiber/carbon fiber mixed wool top is quantified by 24g/5m, the number of the combined wool tops is 8, the drafting multiple is 8.75, the roller gauge is 140 mm and 158, and the vehicle speed is 220 m/min.
c. The roving process comprises the following steps: the quantitative amount of wool top is 5.5g/10m, the twist coefficient is 32, the drafting multiple is 8.7, the roller gauge is 147-160 mm, and the rotating speed of the front roller is 310 r/min.
d. The spinning process comprises the following steps: the yarn count is 18.45tex, the draft multiple is 29.8, the back draft multiple is 1.13, the twist factor is 220, the roller gauge is 145-158 mm, and the rotating speed of the front roller is 200 r/min.
e. A yarn steaming process: circulating 1, at the temperature of 85 ℃, and under the negative pressure of 200mb for 8 min; and (3) circulating for 2, at the temperature of 95 ℃, under the negative pressure of 240mb for 30 min.
The yarn quality indexes are as follows:
drawing and breaking spinning:
traditional staple ring spun yarn
Example 3.
The main process steps of spinning 18.45tex 60% flame-retardant acrylic/40% viscose blended yarn are as follows:
(1) process flow
Filament bundle drafting and breaking machine-BCM 102 drawing frame (pre-drawing) -BCM102 drawing frame (head drawing) -BCM102 drawing frame (final drawing) -FB477 roving frame-B519 spinning frame-steaming machine-self-doffing machine-packaging
(2) Process parameters
a. Drawing, breaking and sliver making process: the specification of the flame-retardant acrylic filament bundle is 80-100g/m, the distance of the first drafting zone is 450mm, and the drafting multiple (times) is 1.05. The second drafting zone has a space distance of 139mm and a drafting multiple of 5.5-6.9. The third drafting zone has a distance of 110-130mm and a drafting multiple of 1.6-2.2. The vehicle speed is 30 m/min. The weight of the produced sliver is 6.5g/m, and the main length of the wool top fiber is 120 mm.
The viscose filament bundle specification is 80-100g/m, the first drafting zone spacing is 200mm, and the drafting multiple is 1.0. The second drafting zone has a gauge of 800mm and a drafting multiple of 3.5-6.0. The third drafting zone has a distance of 110-130mm and a drafting multiple of 1.3-1.9. The vehicle speed is 30 m/min. The weight of the drawn sliver is 6.5g/m, and the main length of the fiber is 120 mm.
b. Drawing process:
pre-merging: the quantitative amount of the flame-retardant acrylic wool tops is 29.25g/5m, the number of the flame-retardant acrylic wool tops is 6, the drafting multiple (times) is 6.67, the roller gauge is mm140 × 155, and the vehicle speed is 210 m/min.
And (3) head combination: the quantitative amount of the flame-retardant acrylic fiber/viscose fiber mixed wool tops is 30g/5m, the number of the flame-retardant acrylic fiber/viscose fiber mixed wool tops is 8, wherein the number of the flame-retardant acrylic fiber wool tops is 5, the number of the viscose fiber wool tops is 3, the drafting multiple (multiple) is 8.15, the roller spacing is mm140 x 155, and the vehicle speed is 210 m/min.
And (3) performing final combination: the quantitative determination of the aramid fiber/carbon fiber mixed wool top is 24g/5m, the combined number is 8, the drafting multiple (times) is 8.75, the roller gauge is mm142 x 158, and the vehicle speed is 220 m/min.
c. The roving process comprises the following steps: the quantitative amount of wool top is 5.5g/10m, the twist coefficient is 32, the drafting multiple is 8.7, the roller gauge is 147-160 mm, and the rotating speed of the front roller is 310 r/min.
d. The spinning process comprises the following steps: the yarn count is 18.45tex, the draft multiple is 29.8, the back draft multiple is 1.13, the twist factor is 220, the roller gauge is 145-158 mm, and the rotating speed of the front roller is 200 r/min.
e. A yarn steaming process: circulating 1, at the temperature of 75 ℃, and under the negative pressure of 200mb for 8 min; and circulating for 2, at the temperature of 90 ℃, under the negative pressure of 240mb for 30 min.
The yarn quality indexes are as follows:
drawing and breaking spinning:
traditional ring spinning:
the above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. All equivalent changes and modifications made according to the content of the claims of the present invention shall fall within the technical scope of the present invention.
Claims (3)
1. An extra-long fiber spinnable yarn for thermal protective materials, characterized in that: the spinnable yarn is provided with the thermal protection material extra-long fibers with the length of 102-120mm, and the thermal protection material extra-long fibers are entangled and twisted to form the spinnable yarn.
2. The ultra-long fiber spinnable yarn for thermal protection material as claimed in claim 1, wherein: the thermal protection material ultra-long fibers are more than two, and various thermal protection material ultra-long fibers are entangled and twisted to form blended spinnable yarns.
3. An extra long fiber spinnable yarn for thermal protection material according to claim 1 or 2, characterized in that: the thermal protection material is characterized in that the ultra-long fiber is crimped or uncrimped aramid fiber, flame-retardant acrylic fiber, carbon fiber, polyimide, flame-retardant viscose, PBO, PBI or PPS.
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| CN202020232998.9U CN211848268U (en) | 2020-03-02 | 2020-03-02 | Ultra-long fiber spinnable yarn for thermal protection material |
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