KR100575473B1 - Composition adiabatic fiber and maunfacturing method thereof - Google Patents

Abstract

 The present invention relates to a composite fiber comprising a non-asbestos blend of acrylic carbon fiber and aramid fiber and having no slip and dust, excellent heat resistance and heat insulation, excellent heat insulation and sound absorption, .

 A first aspect of the present invention is a composite heat insulating fiber yarn comprising a composite heat insulating fiber formed by weaving and knitting a composite heat insulating fiber yarn composed of an acrylic carbon fiber and an aramid fiber to form a composite heat insulating fiber in a tape form, .

A second aspect of the present invention is a method for manufacturing a product, the method comprising: a first step (S1) of preparing a raw cotton of aramid fibers and acrylic carbon fibers for producing a product before being carded; A second step (S2) as a step of preparing a horn face by mixing the facings of the acrylic carbon fiber and the aramid fiber together through a combiner; A carding process for manufacturing a card sliver, which is a fiber aggregate, by putting a horn face of a sheet form mixed in the second process into a card machine and carding the same through a first to third order, A third step (S3) as a step of: The mixed face carded by the third step is used to adjust the content of the fiber which is too short to remove the dust adhering to the fiber debris or the fiber and to produce the combed yarn A fourth step (S4) as a combing step; A fifth step (S5) as a drawing process of preparing a single strand of sliver by combining the plural strands of the sliver produced by the fourth step; A sixth step (S6) as a roving process for further roughening the sliver produced in the softening step of the fifth step; The roving fabricated by the step of the sixth step is formed into a thin yarn having a predetermined thickness and twisted in a bundle of fiber bundles arranged side by side so as to be entangled in three dimensions to increase the cohesive force between the fibers, A seventh step (S7) as a spinning process; An eighth step (S8) as a winding process for winding the yarn produced by the seventh step on a bobbin or a cone; A ninth step (S9) as a raiding step for applying a constant humidity to the yarn winding on the bobbin or cone in the eighth step in order to optimize the yarn condition; (10) as a doubling process for joining two or more yarns to one strand in order to increase the strength of the yarn produced through the above process, and a twelfth process (S10) as a twisting process; An eleventh step (S11) as a winding process for winding a yarn produced by doubling and twisting in the tenth step to a bobbin or a cone; In the eleventh step, the twelfth step (S12) as a raiding step for applying a constant humidity to the yarn winding on the bobbin or cone to make the condition of the yarn optimal is performed, Manufacturing, and

The composite heat insulating fiber yarn is formed by weaving or knitting (S100) a composite heat insulating fiber yarn in the form of a cheese or a tufted yarn in the form of a tape, a tubular (loop) The composite heat-insulating fibers produced by the weaving and weaving process (S100) by taping, tubular (loop), fabric-like weaving and knitting are processed by the processing S200, The present invention relates to a method for producing a composite fiber using a composite insulating fiber yarn.

 The present invention as described above is as follows: First, the composite heat insulating fiber composed of the tape type, the tubular type (loop type) and the fabric type of the present invention is made of the non-asbestos surface, and the cancerous component and the toxic component are not detected.

Second, it has excellent heat resistance (heat resistance temperature 1,200 ℃, radiation temperature 1,600 ℃), excellent tensile strength and elongation, and no dust.

Third, there is no slip due to high moisture collection rate in the atmosphere, which can improve the working efficiency.

Fourth, the composite heat-insulating fiber of the present invention can be formed by weaving and knitting in various forms, and such a composite heat-insulating fiber can be used for industrial materials, safety protectors, disaster prevention equipment, special work clothes, have.

Particularly, it is possible to protect the pipe or the rubber hose by covering the pipe or the rubber hose as an industrial material, and it is possible to obtain an adiabatic effect, and the pipe can be covered with various pipes such as a pipe, a fluid pipe such as gas, liquid, or a bellows pipe Can be used.

Description

TECHNICAL FIELD [0001] The present invention relates to a composite fiber using a composite heat insulating fiber yarn,

1 is an experimental graph showing the presence or absence of asbestos in the "composite heat insulating fiber" according to the present invention.

Fig. 2 is a manufacturing process diagram of "composite heat insulating fiber yarn" according to the present invention.

Fig. 3 is a manufacturing process diagram for producing various types of "composite heat insulating fibers" according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

S1: first process S2: second process

S3: Third step S4: Fourth step

S5: fifth step S6: sixth step

S7: Seventh step S8: Eighth step

S9: the ninth step S10: the tenth step

S11: eleventh step S12: twelfth step

S100: Weaving, knitting process S200: Processing process

The present invention relates to a composite fiber using composite insulation fiber yarns and a method of manufacturing the same. More particularly, the present invention relates to a composite fiber composite fiber made by mixing acrylic carbon fiber and aramid fiber and having no asbestos surface, Which is excellent in heat insulation and sound absorption properties, and a method for producing the composite fiber.

Generally, the flame retardancy and fire resistance of a fiber is to prevent or suppress the flame and burning of the fiber itself when the flame is contacted with the fiber and the fiber is self-flame and it is perfect even if it is fiber such as glass fiber or asbestos It is difficult to soften it.

In addition, the glass fiber or asbestos has been found to have carcinogenic and toxic components and to generate dust, which is harmful to the human body and its use is regulated.

 Fiber flame retardation and fire retardation have mainly been developed for cellulose fibers as garments for the first time. Recently, many researches have been conducted for the purpose of flame retardation and fireproofing of synthetic fibers, and as a result of further development, As a material, it can not exert its performance with ordinary PET fiber, so aramid fiber or carbon fiber is produced as high-function fiber.

In the meantime, the environment of flame retardant and heat-resistant fiber has been developed, and the flame retardant fiber has been steadily built around the interior, and the heat-resistant fiber has been steadily built around the fireproof cloth.

However, these requirements are becoming increasingly sophisticated, diversified, and increasingly demanding more stringent requirements for fire hazards in societies going through and the risks associated with accidents.

In other words, by developing flame retardant fiber, it has excellent fire resistance in high temperature and flame, and it is safe as flame retardant which blocks heat and flame without burning, and the optimal material for industrial materials is one of the manufacturing fields of new technology But still has technical difficulties.

Currently, aramid fibers and carbon fibers are one of the most suitable materials for new technology in the field of industrial materials.

A composite fabric obtained by mixing glass fiber as a reinforcing material with the aramid fiber has been disclosed. However, such a conventional composite fabric is detrimental to the human body due to the detection of carcinogens and toxic components due to the composition of glass fiber or asbestos, There is a problem that occurs.

The aramid fiber is excellent in tensile strength and elongation, has little dust generation, has no slip, and is a long fiber. Therefore, it is easy to produce yarn and the like but has a low heat resistance. The carbon fiber has a possibility of fine dust, Since it is fiber, it is not easy to produce yarn, but it has a strong heat resistance.

The present inventors focused on the advantages and disadvantages of the aramid fiber and the carbon fiber to avoid the drawbacks of the aramid fiber and the carbon fiber, and have come up with the merits of these aramid fibers and carbon fibers to invent a composite heat insulating fiber made of non-asbestos.

Therefore, an object of the present invention is to provide a composite fiber which is made of a non-asbestos fiber by mixing acrylic carbon fiber and aramid fiber and has no slip and dust, has excellent heat resistance and heat insulation, And a method for producing the same.

In order to accomplish the object of the present invention, a first embodiment of the present invention is a composite heat insulating fiber yarn made of a mixture of acrylic carbon fibers and aramid fibers, knitted into a tape, tubular (loop) By weight, the acrylic carbon fiber is 40 to 70% by weight, and the aramid fiber is 30 to 60% by weight.

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The second embodiment for achieving the object of the present invention is a method for fabricating the composite heat insulating fiber yarn by fabricating it in a tape type, a tube type (loop type) or a fabric type, A first step of preparing an acrylic-based carbon fiber and an aramid fiber raw cotton for producing an acrylic fiber and an aramid fiber, and mixing the raw cotton fibers of the acrylic carbon fiber and the aramid fiber together through a combiner to prepare a horn face A second step of preparing a card sliver; and a second step of mixing the cardboard with a horn face of a sheet form mixed with the card, A third step as a carding step, and a third step in which the mixed surface carded by the third step is regulated so that the content of the fibers is too short to make a good yarn, A fourth step as a combing process for producing a combed yarn by removing dust adhered to a fiber or a fiber and a method for manufacturing a combed yarn by combining a plurality of strands of the sliver produced by the fourth process, , A sixth step as a roving process for further roughening the sliver produced in the softening process of the fifth process by a roving process, Spinning process in which the roving produced by the process step of the process is made into a thin yarn of a predetermined thickness and twisted to a fiber bundle arranged side by side to three-dimensionally entangle the fibers to increase the cohesive force between the fibers to maintain the strength of the yarn (8) as a winding process for winding a yarn produced by the seventh step on a bobbin or a cone, and a bobbin Bob a ninth step as a raiding process for imparting a constant humidity to the yarn winding on the bobbin or cone to make the yarn condition optimal for the yarn; (10) as a double yarn and a twisting process to combine yarns into a single yarn, and a yarn produced by doubling and twisting in the twelfth process is wound on a bobbin or a cone A twelfth step as a winding step for winding the yarn on the bobbin or a cone in the eleventh step and a twelfth step as a raiding step for applying a constant humidity in order to make the yarn state optimal for the winding on the bobbin or cone in the eleventh step And the yarn produced by the above process is softened, bundled and discharged into a wound state or inspectively packaged and shipped in a cheese state to produce a composite heat insulating fiber yarn, A weaving and knitting process for fabricating the fabric by weaving and knitting using a tape, a tubular (loop) or a fabric, and a process for processing the fabric produced by the weaving or knitting process Various types of composite insulation fibers are produced by a finishing process.

Hereinafter, preferred embodiments will be described in detail.

First, an embodiment of a composite heat insulating fiber as a first embodiment of the present invention will be described.

As the composite heat insulating fiber of the present invention, a composite heat insulating fiber is formed by taping and knitting with a composite heat insulating fiber yarn composed of an acrylic carbon fiber and an aramid fiber mixed to form a tape type, a tube type (loop type) and a fabric type.

The acrylic carbon fibers are contained in an amount of 40 to 70% by weight, and the aramid fibers are contained in an amount of 30 to 60% by weight.

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The acryl-based carbon fiber has a fire-retardant function and the aramid fiber has a tensile strength

The composite heat-insulating fiber of the present invention constituted as described above is made of non-asbestos, and thus, no carcinogens and toxic components are detected, so that it does not harm the human body.

It has good heat resistance (heat-resistant temperature 1,200 ℃, radiation temperature 1,600 ℃), excellent tensile strength and elongation, no dust and no slip.

That is, the composite heat insulating fiber composed of the acrylic carbon fiber and the aramid fiber has a high moisture absorption rate in the atmosphere and the moisture content of the fiber is increased to 0.7 to 1.0%. Therefore, there is no slip, which can increase the working efficiency.

Further, the present invention is characterized in that it is made of the non-asbestos surface as described above and is not harmful to the human body.

An experimental example will be described with reference to FIG. 1 attached hereto.

In this test, the product of the present invention was found to be free of asbestos, and the test method was as follows. After the test was conducted at 490 ° C, a specimen was prepared and X-ray diffractometer (D / MAX, Rigaku, Japan) Of asbestos and the product of the present invention were compared.

Asbestos is a generic name of natural mineral fiber. Chrysotile (3MgO, 2SiO ₂ , 2H ₂ O), Picrotile, Anthophylite, Amosite and Tremolite are available. Chrysotile and Amosite are used more than 90%.

As a result of the X-ray diffraction analysis of the product of the present invention and Chrysotile asbestos, it was found that the product of the present invention is an asbestos-free product containing no asbestos because it is inconsistent with the asbestos. Components and toxic components are not detected, so that they do not harm the human body.

The composite heat insulating fiber composed of the tape type, the tubular type (loop type), and the tail type of the present invention, which is formed by weaving and knitting, can be used for industrial materials, safety protection materials, disaster prevention equipment, special work clothes and others.

The industrial material can be coated on a pipe or a rubber hose to protect the pipe or the rubber hose and to obtain a heat insulation effect. The pipe can be used for various pipes such as pipes, fluid pipes such as gas and liquid, or bellows pipe It can be used as a coating.

It can also be used for spatter sheets, fireproof and heat-insulating curtains, covers, insulating materials, insulating materials, sound absorbing materials, and surface materials for ducts.

Examples of the above-mentioned safety protection and disaster prevention equipment include heat-resistant gloves, hoods, aprons, toys, gaiters, tapes for preventing burning of electric wires (underground cables), fireproof mats, household fire extinguishers, emergency fireproof pouches, and evacuation ropes.

The above-mentioned special work clothes can be used for fire fighting clothes, heat insulating clothes, welding clothes, chemical clothes and the like.

For the above-mentioned other uses, it can be used for a seat insulation layer of a seat, such as a curtain of a ship, a hospital, a theater, etc., or a seat seat of a subway.

As a second embodiment of the present invention, there is provided a method for producing a composite heat insulating fiber by mixing an acrylic carbon fiber and an aramid fiber to produce a composite heat insulating fiber yarn, and weaving and knitting the same into a tape type, a tube type (loop type) The following description will be made with reference to FIGS. 2 and 3 attached hereto.

First Step (S1) - Prepare a raw cotton of acrylic carbon fiber and aramid fiber for producing a product before being carded.

Second Step (S2) - The raw cotton of the acrylic carbon fiber and the aramid fiber are gathered together and mixed by a combiner to prepare a horn face.

That is, the acrylic carbon fibers and the aramid fibers are mixed in a ratio of 40 to 70 wt% and 30 to 60 wt%, respectively.

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Third Step (S3) - As a carding step, a horn face mixed in the second step is put into a card machine and carded over the first to third order to produce a sheet form.

That is, carding process is performed by carding unit which can perform carding process, carding is performed through first carding unit, then carding is automatically performed by second carding unit, and finally carding is automatically performed by third carding unit.

In this process, the material contained between the fibers is removed and a card sliver, which is a fiber aggregate, is manufactured.
That is, it must be ensured that the first card is removed from the first card, and that the card is prevented from mixing with the second card.
Here, the primary mixing must be confirmed, and this is observed with caution as it affects the rotation (RPM) control of the secondary carding, that is, it affects the working efficiency.
Secondary carding is done immediately after receiving the first card play in the situation where the first mixing is completed, and the mixing which is insufficient for the second carding is finally completed.
If the primary mixing is satisfactory here, it is possible to increase the efficiency of the operation by speeding the rotation of the carding. If it is not enough, the efficiency of the carding should be lowered so that the mixing can be performed more smoothly.
The three most important steps in carding are to make sure that all the mixing is done properly to make the best card sleeves.

Fourth Step (S4) - As a combing step, the mixed surface carded by the third step is regulated so that the content of the fiber is too short to make a good yarn and the dust attached to the fiber debris or the fiber And a combed yarn is manufactured.

Fifth Process (S5) - As the drawing process, the multiple strands of the sliver produced by the above process are combined into a single strand of sliver.

In this process, the cause of non-uniformity is corrected in the sliver in which the weight fluctuation or the degree of arrangement is low, and the optimum uniformity and the arrangement of the fibers are also improved.

Sixth Step (S6) - As the roving process, the sliver produced in the softening step of the fifth step is further roughened and manufactured by roving.

Seventh Step (S7) - As a spinning step, the roving produced by the step of the sixth step is finely threaded to a predetermined thickness, twisted to the fiber bundles arranged side by side, and entangled in three dimensions The cohesion between the fibers is increased to maintain the strength of the yarn.

Eighth Step (S8) - A yarn produced by the seventh step is wound on a bobbin or a cone as a winding step.

Ninth Step (S9) - As the raiding process, in the eighth step, a constant humidity is applied to a winding for winding on a bobbin or a cone to make the yarn condition optimal.

Step 10 (S10) - Doubling and twisting are performed by winding together two or more yarns in one strand in order to increase the strength of the yarn produced through the above process.

Step 11 (S11) -The yarn produced by doubling and twisting in the tenth step is wound on a bobbin or a cone as a winding step.

Step 12 (S12) - As the raiding process, a constant humidity is applied to the winding which winds on the bobbin or cone in the eleventh step in order to make the condition of the yarn optimal.

Thereafter, the yarn produced by the above process is soft-knitted, bound and discharged in a wound state, or inspectively packaged and shipped in a cheese state to produce the composite heat insulating yarn of the present invention.

As shown in FIG. 3, the composite heat-insulating fiber yarn thus produced is produced by weaving and knitting the composite heat-insulating yarn in the form of a tape, a tube, a loop, , A knitting process (S100).

In this process, the composite heat insulating fiber prepared by taping, tubular (loop), and weaving and weaving in the form of a fabric is processed to complete the manufacture of the composite heat insulating fiber - processing step (S200).

In order to increase the performance of the composite heat insulating fiber fabricated in this process, basic processing such as singeing, desizing, scouring, carbonizing, bleaching, mercerization, As a process of fermenting and functional processing, the production of composite heat insulating fiber is completed through shrinkage, morphological stability, fogging, water repellency, flame retardation, hygiene and antistatic processing.

As described above, the composite heat-insulating fiber of the present invention produced by the above-described manufacturing method is composed of non-asbestos surface, and is free from human body and toxicity due to no detection of carcinogenic and toxic components. It is also excellent in tensile strength and elongation.

It can be used for industrial materials, safety equipment, disaster prevention equipment, special work clothes, and other applications.

According to the present invention as described above, the following effects can be obtained.

First, the composite heat insulating fiber composed of the tape type, the tubular type (loop type), and the fabric type of the present invention is made of the non-asbestos surface, so that the cancerous component and the toxic component are not detected, and it does not harm the human body.

Second, it has excellent heat resistance (heat resistance temperature 1,200 ℃, radiation temperature 1,600 ℃), excellent tensile strength and elongation, and no dust.

Third, there is no slip due to high moisture collection rate in the atmosphere, which can improve the working efficiency.

Fourth, the composite heat-insulating fiber of the present invention can be formed by weaving and knitting in various forms, and such a composite heat-insulating fiber can be used for industrial materials, safety protectors, disaster prevention equipment, special work clothes, have.

Particularly, it is possible to protect the pipe or the rubber hose by covering the pipe or the rubber hose as an industrial material, and it is possible to obtain an adiabatic effect, and the pipe can be covered with various pipes such as a pipe, a fluid pipe such as gas, liquid, or a bellows pipe Can be used.

Claims (5)

The composite fiber is made of a composite heat insulating fiber yarn, which is formed by taping and knitting with a composite heat insulating fiber yarn composed of an acrylic carbon fiber and an aramid fiber to form a composite heat insulating fiber in a tape form, a tubular form (loop form) and a fabric type. The composite fiber according to claim 1, wherein the acrylic fiber is 40 to 70% by weight and the aramid fiber is 30 to 60% by weight. delete The composite heat insulating fiber according to claim 1, wherein the composite heat-insulating fiber of a tape type, a tubular type (loop type), and a fabric type is used for a pipe or a rubber hosepipe, a spatter sheet, an insulating and insulating curtain, , Industrial materials of duct surface material; Heat resistant gloves, hoods, aprons, tosses, gaiters, wires (underground cables), anti-fusing tapes, fireproof mats, household fire extinguishers, emergency fireproof pouches, safety guards and emergency protection equipment for evacuation ropes; And is used for a heat insulating layer of a seat of a curtain, a subway, etc. of a ship, a hospital, a theater, and the like. A first step (S1) of preparing a raw cotton of acrylic-based carbon fiber and aramid fiber for producing a product before being carded; A second step (S2) as a step of preparing a horn face by mixing the facings of the acrylic carbon fiber and the aramid fiber together through a combiner; A carding process for manufacturing a card sliver, which is a fiber aggregate, by putting a horn face of a sheet form mixed in the second process into a card machine and carding the same through a first to third order, A third step (S3) as a step of: The mixed face carded by the third step is used to adjust the content of the fiber which is too short to remove the dust adhering to the fiber debris or the fiber and to produce the combed yarn A fourth step (S4) as a combing step; A fifth step (S5) as a drawing process of preparing a single strand of sliver by combining the plural strands of the sliver produced by the fourth step; A sixth step (S6) as a roving process for further roughening the sliver produced in the softening step of the fifth step; The roving fabricated by the step of the sixth step is formed into a thin yarn having a predetermined thickness and twisted in a bundle of fiber bundles arranged side by side so as to be entangled in three dimensions to increase the cohesive force between the fibers, A seventh step (S7) as a spinning process; An eighth step (S8) as a winding process for winding the yarn produced by the seventh step on a bobbin or a cone; A ninth step (S9) as a raiding step for applying a constant humidity to the yarn winding on the bobbin or cone in the eighth step in order to optimize the yarn condition; (10) as a doubling process for joining two or more yarns to one strand in order to increase the strength of the yarn produced through the above process, and a twelfth process (S10) as a twisting process; An eleventh step (S11) as a winding process for winding a yarn produced by doubling and twisting in the tenth step to a bobbin or a cone; In the eleventh step, the twelfth step (S12) as a raiding step for applying a constant humidity to the yarn winding on the bobbin or cone to make the condition of the yarn optimal is performed, Manufacturing, and The composite heat insulating fiber yarn is formed by weaving or knitting (S100) a composite heat insulating fiber yarn in the form of a cheese or a tufted yarn in the form of a tape, a tubular (loop) The composite heat insulating fiber produced by the weaving and weaving process S100 in a tape form, a tubular form (loop form), a weft form in a fabric form, and a knitted fabric is processed by a processing step S200 to complete and manufacture a composite heat insulating fiber Wherein the composite fiber is produced by using the composite heat-insulating fiber yarn.

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