KR101775973B1 - Mixed yarn of cypress fiber and cotton fiber, method for producing the same - Google Patents

Abstract

More particularly, the present invention relates to a method for producing a blend yarn, particularly a blend yarn for various purposes, by mixing a cotton fiber and a cotton fiber produced by using a bluish-wood, The antiseptic and antimicrobial action of phytoncide contained in the fibers does not irritate sensitive skin and can help relieve atopic and skin allergic symptoms.
The method for preparing a fiber bundle according to the present invention includes a fiber preparation step (S100) of preparing cotton wood fibers and cotton fibers, a fiber mixing step (S100) of mixing cotton fibers and cotton fibers prepared in the fiber preparation step (S300) for preparing a blended sliver by separating the blended fibers formed in the fiber mixing step (S200) into a lump (S300); and a step (S300) A softening step (S400) for preparing a uniform sliver of one strand by drawing a plurality of sliver strands together; a step (S400) of softening the sliver produced in the softening step (S400) (S500); And a spinning step (S600) of twisting the sliver produced in the spinning step (S500) to produce a blend yarn.

Description

FIELD OF THE INVENTION [0001] The present invention relates to cotton blend fibers and cotton fiber blends,

More particularly, the present invention relates to a method for producing a blend yarn, particularly a blend yarn for various purposes, by mixing a cotton fiber and a cotton fiber produced by using a bluish-wood, The present invention relates to a cotton fiber and a cotton fiber blend and a method for producing the same, which can help relieve atopic and skin allergic symptoms without irritating sensitive skin due to sterilization and antibacterial action of phytoncide contained in the fiber.

It is known that the Japanese cypress tree belongs to the Japanese cabbage family, and Japan is named as a Japanese hinoki tree and planted with cannabis, etc., and it produces a lot of phytoncide fragrance. Recently, as interest in health has increased, the substance called phytoncide, which is sprayed by the woodchuck, is known to be effective in the treatment of atopy.

The root of phytoncide is phyton / plant, which means plant in Greek, meaning sterilizing power. It means "the germicide secreted by the plant." The tree itself is a natural therapeutic ingredient that is sprayed to protect itself from various insect and germ bacteria. The results of the comparative experiments on the effect of coniferous trees on the effect of the softwoods, which were actually carried out by the Forestry Research Institute and the Institute of Animal Medicine, Chungbuk National University, showed that the decrease of the cortisol, which is a stress hormone, 19% of the trees are 33%, while the trees are 53%.

In addition, it has excellent effect to inhibit the growth of house dust mite which causes various allergic skin diseases such as atopy. In addition, it has a variety of effects such as eliminating bad smell, neutralizing harmful substances, Is reported to be.

However, as described above, it has been known that cottonwood is effective for treating skin diseases, but a method that can be applied to clothes that always reach directly to the skin has not been developed.

On the other hand, cotton fiber is a staple fiber attached to cotton seed and belongs to seed fiber of natural vegetable fiber and is composed of only pure fiber. Cotton fiber is a single cell, and when viewed under a microscope, the side is ribbon-shaped, and hollow, thin and long fibers are made of natural twist. This natural twist is a unique form of cotton fiber that brings good spinning and elasticity of cotton fiber. Side affects gloss, warmth, and flammability, and hollow has a relationship with warmth. The hollow part and natural twist of cotton fiber are developed as the fibers mature or delicate, and there are many kinks and the direction is not constant.

The varieties are classified according to their origin and include sea island, American, Egyptian, Indian, Chinese and Korean.

These cotton fibers have excellent softness, excellent absorbency, excellent sweat absorbing ability, high heat retention, excellent strength and durability, and excellent dyability by direct dyeing, sulphide, vat and reactive dye, And it has been used for a wide range of coating materials.

In addition, cotton fiber has a specific gravity of 1.54, which is comparatively heavy fiber, and has good heat resistance and flame retardancy, and is relatively safe against heat, so it can withstand high ironing temperatures. The strength of cotton fiber increases with wetness and increases with fiber length. However, there are disadvantages that the elasticity and resilience are poor and the shape stability is not good and wrinkles are generated well, but the disadvantages are improved by various functional processing (anti-shrinkage, anti-spindle processing, anti-creasing).

However, when exposed to sunlight for a long time, it becomes brittle and is vulnerable to bacteria, fungi, and insects in high temperature and high humidity, resulting in reduction of insect resistance and fungus, and fouled or contaminated fibers are susceptible to microbial infiltration.

In order to solve the above problems, a coating solution for improving the resistance to the surface of the cotton fiber is coated on the cotton fiber to spin the yarn, and clothes using the same are manufactured. However, since the synthetic coating solution is used, As compared with the conventional method.

Korean Patent Publication No. 10-1434561

Disclosure of Invention Technical Problem [7] Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a method for producing cotton wood fibers by using a cottonwood containing phytoncide as a natural therapeutic ingredient for sterilizing pests and germs, By mixing cotton fiber and cotton fiber, it is possible to manufacture cotton blended yarn and cotton fiber blend to prevent the soft touch of cotton fiber, and it is possible to produce a flocked yarn by spinning with conventional cotton fiber only by keeping the phytorindic effect of forest bath, deodorizing effect, insecticidal effect, , Which can be applied to sensitive skin such as atopic dermatitis, which protects the skin from mites and various insects which cause skin allergies by sterilizing action by improving weak bugs and bacterial resistance of the skin, A cotton fiber blend and a method for producing the same.

A method for preparing a cotton fiber blend and a cotton fiber blend according to the present invention comprises the steps of preparing a textile fiber (S100) for preparing plain wood fiber and a cotton fiber; preparing a mixed fiber by mixing cotton fiber and cotton fiber prepared in the fiber preparation step (S300) of producing a blend sliver by separating the blended fibers formed in the fiber mixing step (S200) from the blend (S300); and a step A softening step (S400) for preparing a uniform sliver of one strand by stretching a plurality of the mixed sliver flakes prepared in the step (S400); and a softening step (S400) for softening the sliver produced in the softening step (S500); And a spinning step (S600) of twisting the sliver produced in the spinning step (S500) and producing a blended yarn.

As described above, according to the present invention, the blended yarn mixed with the cotton fiber mixed with the cotton fiber produced using the cottonwood containing the phytoncide, which is a natural antimicrobial aromatic substance as the functional active active ingredient having the antibacterial effect and insecticidal effect, And a cotton fiber blend yarn, it has an effect of having a complex function such as odor elimination, stress relaxation, nerve stabilization, antibacterial and antifungal without inhibiting soft touch of the cotton fiber.

In addition, the blended wood fiber and cotton fiber blend of the present invention are harmless to the human body and are friendly to nature, and the phytoncide contained in the wood fibers prevents the propagation of bacteria and is effective for the treatment and prevention of allergic skin diseases such as atopy due to the bactericidal action And it contributes to health promotion of the human body.

In addition, the blended wood fiber and cotton fiber blend of the present invention is made of a biodegradable material and has self-tactile force of nature. When buried after use, it is decomposed by microorganisms and reduced to soil, There is an effect that disposal is easy.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram showing the sequence of a method for producing an unbleached wood fiber and a cotton fiber blend.
Fig. 2 is a block diagram showing the sequence of the method for producing the unbleached wood fiber. Fig.

Advantages and features of embodiments of the present invention and methods of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions in the embodiments of the present invention, which may vary depending on the intention of the user, the intention or the custom of the operator. Therefore, the definition should be based on the contents throughout this specification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram showing a procedure of a method for producing a cotton fiber and a cotton fiber blend, and FIG. 2 is a block diagram showing a procedure of a method for producing a cotton fiber.

The method of manufacturing a cotton fiber and a cotton fiber blend according to the present invention includes preparing a fiber preparation yarn (S100) for preparing plain wood fibers and a cotton fiber, a fiber mixing step (S200), a soaking stage (S300) Steps S400, S500, and the like.

Cotton fibers can be obtained from cottonwood by a separate process. The following is a description of the method for producing cottonwood fibers for making cottonwood fibers and cotton fiber blends.

To prepare the wood fibers, first prepare the wood chips in the preparation step (S1).

The unbleached wood prepared in the above step is a unbleached strand formed by a stratum of a certain length of which is peeled off. The length of the unbleached strand is not limited, but it is preferably 10 to 20 cm. If the length of the strand is less than 10 cm, there is a problem that the quality of the manufactured strand is lowered. If the length of the strand is 20 cm or more, it is difficult to carry out the following processes.

Next, the unbleached wood chips prepared in the unbleached wood preparation step S1 are cut vertically to perform the unbleached wood chip manufacturing step S2.

At this stage, the unbleached wood chips are longitudinally cut to produce the unbleached wood chips, wherein the produced unbleached wood chips have a width of 0.5 to 2 mm. When the width of the untwisted wood chip is more than 2 mm, the thickness of the untwisted wood fiber produced becomes thick. When the width of the untwined wood chip is less than 0.5 mm, the cellulose contained in the untwisted wood chip is broken. In this step, the longitudinal cutting of the untreated wood strand in the longitudinal direction is performed by cutting the untwisted wood strand without considering the directionality, so that the fiber itself is destroyed rather than being cut uniformly in the wood, This is because the strength of the wood fiber can be weakened and the quality is poor.

The unprinted wood chips formed as described above can be further compressed by the pressing rollers or protruding rollers protruding from the pressing rollers so as to be torn in a narrow width while simultaneously being broken in the longitudinal direction, This has the effect of making the chemical treatment performed in the processes of widening the surface area of the white rice chip effective.

Next, a screening step (S3) for filtering out impurities such as debris and dust contained in the pressed wood chips is performed.

Since the debris generated in the cutting process for making the unbranched strand into the untwisted wood chip is in a state that the fiber is broken, when the untwisted wood fiber is made of the untwisted wood fiber, the strength of the untwisted wood fiber is weakened, , It is necessary to remove through the screening operation. At this time, impurities such as debris contained in the untwisted wood chips can be removed by washing with water.

Next, a total hydrolysis step (S4) is carried out to dissolve hemicellulose and lignin contained in the white rice flour chips.

In this step, the untreated wood chips that have undergone the screening step (S3) are hydrolyzed by using water or steam, and sulfuric acid or sulfuric acid is added as a catalyst according to the degree of the reaction, thereby promoting the hydrolysis reaction to increase hemicellulose and lignin Dissolve. Accordingly, it is possible to maximize the yield of alpha-cellulose which can be used for the fibers contained in the untwisted wood chips, and to produce high quality untwisted wood fibers.

The purpose of hydrolyzing the white wood chips is to dissolve the hemicellulose contained in the white wood chips. Therefore, if the acid is used alone, the acid hydrolysis occurs too much and the alpha cellulose may be destroyed. As a result, The amount of catalyst should be carefully monitored and adjusted according to the process conditions at a suitable rate, since it has a significant effect on the yield.

In this step, administration of the liquid, i.e., the liquid water and the catalyst, and the rate of administration of the whitening wood chips can be adjusted within the range of 2 to 5.5: 1, depending on the degree of hydrolysis required. That is, it is preferable that the hydrolysis is performed in a state where the liquid containing the water and the safflower wood chips have a liquid ratio of 2 to 5.5: 1. If the liquid ratio is less than 2, hydrolysis does not occur smoothly and hemicellulose can not be easily dissolved. If the liquid ratio exceeds 5.5, the strength of the whiteness wood fiber produced becomes weak.

It is important to note that, during the hydrolysis process, hemicellulose decomposes in the chemical composition of the whiteness tree and organic acids are generated. This organic acid leads to the hydrolysis of the elongated tree. Therefore, It is necessary to control the degree of polymerization, the degree of hydrolysis of hemicellulose, and the like, by using a gentle characteristic.

In other words, when the liquor ratio is 1, the volume of the aqueous solution (if the chemical such as catalyst is included, the medicine is dissolved in water) is 2 to 5.5 It is. In this case, the term " total length " refers to the mass of pure cottonwood chips excluding the moisture contained in the whiteboard chips. By adjusting the liquid level, it is possible to control the degree of uniform contact of the wood chip with the chemical during the reaction, so that the strength (concentration) of the chemical in contact with the wood chip The degree of the reaction can be controlled.

In addition, the temperature required for the decomposition condition in the total hydrolysis step (S4) can be set at 100 to 160 DEG C, and the hydrolysis time can be adjusted within the time range of 30 to 80 minutes. Therefore, when the untreated wood chips are sufficiently immersed in water and subjected to heat treatment under the above conditions, hemicellulose contained in the untreated wood chips and a certain amount of lignin dissolve while being structurally defended by heating.

Next, by performing a first washing step (S5) of washing the washed white wood chips after the hydrolysis step (S4) by washing the dissolved hemicellulose or partially dissolved lignin in the hydrolysis step (S4) So that smooth processing can be performed in step S6.

Next, a digestion step (S6) for extracting alpha-cellulose from the white washed wood chips that have been subjected to the washing step is carried out using a liquid containing water, sodium hydroxide (NaOH) and anthraquinone.

This step is performed to remove the undissolved lignin as much as possible in the pre-hydrolysis step (S4), to prevent the decomposition of the alpha-cellulose contained in the white rice chip and to increase the yield. To this end, in this step, the cotton wool chips that have undergone the first washing step (S5) and the liquid containing water, sodium hydroxide, and anthraquinone are heated at high temperature to soften the whitening wood chips so that only the fibrous pure alpha- . That is, after the pre-hydrolysis step (S4) and the washing step (S5), the white rice chips are put into the digestion part together with an appropriate amount of sodium hydroxide and a small amount of anthraquinone, and then heat- ), So that only the fiber-like pure alpha-cellulose remains.

Sodium hydroxide acts on the reaction with lignin, the dissolution of hemicellulose, the neutralization of organic acids and organic acids in the wood chips, and the saponification of the resin. Some of the molecules of the lignin are decomposed by sodium hydroxide to form the sodium salt and then the lignin is made available. Sodium hydroxide oxidizes the lignin to form the carboxyl group and affects the dissolution of lignin.

The treatment conditions in the steaming step (S6) are 15 to 25% of the sodium hydroxide and the liquid ratio of the chemical solution (water, sodium hydroxide, and anthraquinone) to the untreated wood chips is 1: 2.7 to 3.3. At this time, anthraquinone is used to promote the removal of lignin and to prevent the degradation of alpha-cellulose, and it is 0.3 to 1.0% based on the white rice chip.

The slurry is added to the digestive juice together with the white rice chips under the conditions of the above-mentioned safflower, and then it is firstly digested at 120 to 160 ° C for about 70 to 180 minutes. It can be successively further digested at 140 to 160 ° C for 40 to 80 minutes. Therefore, in the digesting step (S6), since the lignin which has not been dissolved and removed in the hydrolysis step (S4) is sufficiently dissolved, only the fibrous alpha-cellulose remains in the digested portion.

After the steam treatment is completed under the same conditions as above, steam is discharged and decompressed, and the whitening wood fiber made of only alpha-cellulose is obtained from the steamer.

Next, a second washing step (S7) for washing the whitish wood fibers generated in the cooking step (S6) is performed.

In the second washing step (S7), the fibrous alpha-cellulose, that is, the whitening wood fibers, is selectively extracted by washing the lignin and hemicellulose dissolved in the cooking step (S6) with water.

Next, a foreign substance removing step (S8) for removing other foreign matter contained in the untwisted wood fiber through the second washing step (S7) using a centrifugal damper is performed.

In the foreign substance removal step (S8), the foreign matter introduced into the process with the untreated wood fiber or the process is removed using a centrifugal cleaner. At this time, the centrifugal damper can effectively remove the foreign matter having a specific gravity larger than that of the untreated wood fiber by the centrifugal damper by setting the concentration in the centrifugal damper at a concentration of 0.6 to 1.0% and a pressure of 1.7 to 2.4 kg / cm3.

The centrifugal damper is a conical shaped device for removing foreign matter from the whitewood fiber produced in the previous step (S6). The foreign matter that is mainly to be removed is sand, metal pieces, glass pieces, etc. which can be mixed in each stage. The centrifugal damper is focused on the fact that the specific gravity of the fiber when it is completely wetted is close to 1 while the aforementioned foreign matter is higher than 1. The centrifugal force and the shear of the fluid remove the contaminants from the fibers, thus separating and removing the contaminants not only by the difference in weight but also by the shape of the particles to some extent. The above-mentioned centrifugal damper is well known, and it is obvious that the present invention is not limited thereto and various other types of centrifugal damper may be used.

Next, the foreign matter is removed from the whiteness wood fiber produced through the cooking step (S6) and the foreign matter removing step (S8) by using a pressure screen, and the unhardened portion is sent back to the digesting step And a foreign substance removing step (S8) are repeated.

At this time, a non-dissociated fiber or foreign matter is removed using a pressure screen. The pressure screen has the advantage of being able to exclude the inflow of air and to minimize the occurrence of slime since the processing ability per unit device is large and completely sealed.

Next, the selected cotton fibers are cleaned and concentrated (S10) through the selection step S9.

At this time, the decker is used to wash the remaining medicine on the wood fiber, and the water is squeezed and concentrated. Decker is a machine that squeezes and concentrates water at the same time it cleans the cotton fibers. Washes the cotton fibers with a decker and concentrates the cotton fibers at a concentration suitable for bleaching in the next stage of bleaching. At this time, it is preferable to perform washing in at least three stages in order to remove as much as possible fine particles and flow cells.

Next, the bleached white fiber washed and concentrated in the washing and concentration step (S10) is treated with a bleaching agent to remove remaining lignin and other coloring materials to perform a bleaching step (S11) for improving the whiteness of the pulp.

At this stage, ECF (elementary chlorine free) or TCF (total chlorine-free) bleaching can be applied to eliminate environmental problems such as dioxin, an environmental hormone. DED, DEDP, DEZP, DEOP, DEOZ, and PEOZ can be selectively applied to the bleaching step. The bleaching method, the number of bleaching steps and bleaching conditions are controlled according to bleaching needs. Here D (chlorine dioxide) refers to chlorine dioxide bleaching, E (alkaline extraction) refers to alkaline extraction, P (peroxides) refers to peroxide bleaching, O (oxygen) refers to oxygen bleaching, and Z (ozone) refers to ozone bleaching. For example, if the bleaching stage is DEDD, it means bleaching in four steps: 1. chlorine dioxide bleaching, 2. alkaline extraction, 3. chlorine dioxide bleaching, and 4. chlorine dioxide bleaching. That is, the bleaching step may be selectively used depending on the brightness, chemical purity, or operator's preference of the desired whiteness fiber.

In addition, when the content of metal ions in the wood fibers is high, the metal ions may be inactivated by treating with a chelating agent (EDTA, DTPA, DTPMPA, etc.) before bleaching to improve the bleaching efficiency. At this time, the chelating agent is a drug for neutralizing the reactivity of the metal ion, and when there is a large amount of metal ion in the white wood fiber, there is a problem that the performance of the bleaching agent is significantly lowered.

In addition, washed and concentrated cotton fibers can be subjected to oxygen bleaching before the chlorination step in order to solve various problems such as environmental problems, economical efficiency and energy saving, and further oxygen bleaching is performed before the chlorination step It is possible to remove more than 50% of the lignin in the unbleached wood fiber before bleaching, so that it is possible to reduce the amount of the chemical used in the bleaching step after the bleaching of the look-up table, thereby reducing the environmental pollution and reducing the energy cost. That is, the energy required for the production of oxygen corresponds to one-eighth of the energy required for chemically producing the same amount of chlorine, and oxygen is advantageous in price compared to other reagents. Oxygen bleaching is accompanied by cellulose decomposition reaction, so viscosity is reduced. To prevent this, however, it is possible to remove metal ions which facilitate the production of radicals by washing the wood fibers with an acidic solvent before the oxygen bleaching step. At this time, addition of magnesium, which is a carbohydrate protecting material, prevents the degradation reaction of cellulose and forms a precipitate of magnesium hydroxide to absorb the metal ions (iron, manganese, copper) in the waxy wood fiber. In addition, treating the wood fibers with oxygen dioxide in oxygen to increase the reaction with carbohydrates and to improve the reaction with lignin can increase the selectivity effect and increase the removal rate of lignin up to 80%.

Next, in the bleaching step (S11), acid washing and washing step (S12) are performed to remove the metal ions existing on the surface and inside of the whitened cotton fibers.

The step of removing the metal ions present on the surface of the whitened whitewood fibers that may have been introduced in the bleaching step (S11) and the metal ions present therein is adjusted to a pH of 3 to 5.5 and an acid value of 20 to 120 minutes And wash with clean water until the pH is neutral. At this time, the acid treatment time can be adjusted according to the content and removal degree of the metal ion.

Next, a pressing and drying step (S13) is performed to pressurize and dry the unbleached wood fibers subjected to the acid treatment and washing, thereby removing moisture.

At this time, the untreated wood fibers having been subjected to the acid treatment and washing were pressed with a compression roller to remove 80% or more of the water gate included in the untreated wood fibers, and the water content of the untreated wood fibers was 5 to 8% .

Hereinafter, an embodiment in which the wood fiber is produced by the above method will be described.

The whitened wood is cut to a length of 10 to 20 cm, and the untreated untreated wood chips are longitudinally cut in the longitudinal direction to produce a whitewood chip having a width of 0.5 to 2 mm. The white wood chips are crushed in the longitudinal direction by pressing with a pressure roller, and at the same time, they are finely torn in a narrow width, and then screening is carried out to remove impurities.

The amount of 500 g of the whitening wood chips was added to the digestion portion, and the solution was adjusted to 3: 1, followed by hydrolysis at 120 to 130 ° C. for 60 minutes.

After the first washing of the hydrolyzed white rice flour chips, the mixture was added to the digestion section. The weight ratio of sodium hydroxide 20% and anthraquinone 0.5% relative to the weight of the white rice flour was adjusted to 1: 3, And then cooked for minutes to prepare plain wood fibers.

After finishing the digestion, the untreated wood fibers were washed twice with water, and the other foreign materials were removed by using a centrifugal damper. Then, the remaining medicine was washed away and the water was squeezed and concentrated.

The concentrated cotton fibers were bleached at 4 DEDD, acid treated at room temperature for 40 minutes, and washed with water until neutral.

The washed cotton fibers were dried to a moisture content of 7% to prepare the untwisted wood fibers. The properties of the resulting wood fibers are shown in Table 1.

Experimental results of hydrolysis and fibrosis of elongated wood Yield of wood fibers before bleaching (%) 41.5 Kappa value 11.2 Yield of wood fibers after bleaching (%) 39.7 Whiteness (% ISO) 85.1 Alpha Cellulose (%) 95.2 Viscosity (cps) 5.3 Degree of polymerization 896

The whiteness wood fibers prepared by using the untreated wood as described above are composed of alpha-cellulose and can be used as a room application. Hereinafter, a method of spinning the blended yarn by mixing the cotton fibers with the cotton fibers produced as described above will be described.

First, a fiber preparation step (S100) is performed to prepare plain wood fibers and cotton fibers.

At this time, the untreated wood fiber is made of the untreated wood fiber produced by the above-mentioned untreated wood fiber manufacturing method, and preferably the untreated wood fiber of Example 1 can be used.

A cotton fiber is a mixture of a raw cotton surface obtained by cotton and a raw cotton surface obtained by removing impurities such as dust and dirt from the raw cotton cloth, a mixing step of mixing the raw cotton and the raw cotton by unwinding the raw cotton obtained in the mixing step, Cotton fibers can be obtained by carrying out a carding (smoothing) step in which the mixed cotton is evenly carded to obtain cotton fibers.

Cotton fiber and cotton fiber are each prepared by cutting to a length suitable for producing a blend yarn. Preferably, the cotton fiber is 20 to 50 mm in length and the cotton fiber is 25 to 45 mm in length.

Next, a fiber mixing step (S200) for preparing mixed fibers by mixing the cotton fibers and cotton fibers prepared in the fiber preparation step (S100) is performed.

The fiber mixing step (S200) is a step of uniformly mixing the cotton fibers and the cotton fibers prepared in the fiber preparation step (S100) to produce mixed fibers. The cotton fibers and the cotton fibers are finally manufactured according to whether the cotton fibers are uniformly mixed It is an important step that determines the quality of the blended yarn.

The cotton fiber and the whiteness wood fiber can be mixed in an amount of 25 to 100 parts by weight of the whiteness wood fiber with respect to 100 parts by weight of the cotton fiber.

At this time, the blending ratio can be adjusted according to the purpose of use. For example, in order to produce clothes for atopic patients, a high proportion of the wood fibers is mixed. However, if the amount of the untwisted wood fiber exceeds 100 parts by weight, the economical efficiency is lowered. If the amount of the untwisted wood fiber is less than 25 parts by weight, the advantageous effect of the untwisted wood fiber is insignificant.

Next, a soaking step S300 is performed in which the blended fibers formed in the fiber mixing step S200 are separated to form a blend sliver.

In the carding step S300, the mixed fibers prepared in the fiber mixing step S200 are supplied to a cotton mill and combed in a longitudinal direction to separate and unite mixed fibers that are clumped or entangled in a lump, Which is a step of manufacturing a blend sliver by removing foreign substances such as dust and dirt. The mixed fibers are passed through the metal needles of the face machine to parallelize the mixed fibers and remove foreign matter.

In this case, the blend sliver which has been subjected to the sour surface step (S300) may be partially tangled or have some unevenness and uneven thickness. In this case, because of uneven thickness, there are many kinks in the thin portion, As a result, there is a problem that the strength of the yarn is lowered because the twisting of the yarn is not uniform. Therefore, in order to eliminate such drawbacks, a combing step may be further performed to remove foreign substances contained in the blend sliver and to combine the blended sliver.

Next, a plurality of strands of the mixed sliver produced in the above-mentioned smoothing step (S300) are combined and stretched to perform a softening step (S400) of producing one strand of uniform sliver.

In the drawing step S400, the mixed sliver is prepared by combining 2-5 strands of the mixed sliver produced in the step S300, preferably 3-6 strands, so that the thickness of the mixed sliver is reduced, ) Is a step of manufacturing a uniform sliver of one strand.

Next, in order to impart strength to the sliver produced in the softening step (S400), a softening step S500 is performed in which the softening is carried out with minimum twist.

At this time, the stretching ratio (D / R ratio) is preferably 6.5 to 8.0 degrees, and the number of twists is about 1.3 to 1.6 TPI.

Next, a spinning step (S600) is performed in which the sliver produced in the spinning step (S500) is twisted and a blended yarn is manufactured.

The spinning step S600 is a step of stretching (drafting) and twisting the sliver produced in the refining step S500 until the fiber is made to have a thickness suitable for the purpose, and manufacturing the blended yarn. At this time, it is preferable that the blend yarns are made of 35 to 45 yarns.

At this time, the sputtering machine can use a flyer sputtering machine, a mule sputtering machine, a cap sputtering machine, a ring sputtering machine, and an open end sputtering machine.

The blended yarn manufactured in the step S600 may be manufactured as a finished blended yarn after the ordinary winding process.

Hereinafter, embodiments of the cotton fiber and the cotton fiber blend fabricated by the above-mentioned method of producing the plain wood fiber and the cotton fiber blend will be described. The following examples illustrate examples in which the present invention can best be carried out, and thus the present invention is not limited thereto.

The plain wood fibers of Example 1 and the cotton fibers of 28 to 33 mm in length, which were cut into fiber lengths of 30 to 40 mm, were mixed with 100 parts by weight of cotton fibers and 75 parts by weight of plain wood fibers, And the number of twists was 1.4 TPI. Then, the number of untwisted wood fibers and cotton fiber blends of No. 40 was prepared by spinning with a ring spinner.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be readily apparent that such substitutions, modifications, and alterations are possible.

S100: Fiber preparing step S200: Fiber mixing step
S300: Slight surface step S400: Soft tone step
S500: Refreshing step S600: Canning step
S1: Preparing wood flour wood S2: Preparing wood flour wood chip
S3: Screening step S4: All hydrolysis step
S5: first washing step S6: washing step
S7: second cleaning step S8: foreign matter removal step
S9: Selection step S10: Cleaning and concentration step
S11: bleaching step S12: acid treatment and washing step
S13: Compression and drying step

Claims (5)

A fiber preparation step (S100) for preparing plain wood fibers and cotton fibers;
Wherein the cotton fiber is a mixture of a raw cotton surface obtained by cotton and a raw cotton obtained by removing impurities such as dust and dirt to obtain a raw cotton surface, a mixing step of mixing the raw cotton and the raw cotton by unwinding the raw cotton obtained at the hoeing surface step, Preparing a cotton fiber in which a mixed cotton is carded to obtain a cotton fiber,
A fiber mixing step (S200) of uniformly mixing the cotton fibers and cotton fibers prepared in the fiber preparation step (S100) to prepare mixed fibers;
(S300) of producing a blended sliver by separating the blended fibers formed in the fiber mixing step (S200);
A softening step (S400) of combining a plurality of strands of 3-6 strands of the mixed sliver produced in the sour surface preparation step (S300) to prepare a uniform sliver of one strand;
(S500) in which the stretching ratio is about 6.5 to 8.0 degrees and the number of twists is about 1.3 to 1.3 PI to give strength to the sliver produced in the softening step S400; And
(S600) for producing a blend yarn by twisting the sliver produced in the blending step (S500)

The whiteness wood fiber,
A preparae wood preparation step (S1) of preparing a peeled unbleached wood slice;
(S2) a step of preparing an untwisted wood chip having a width of 0.5 to 2 mm by longitudinally cutting the untwisted wood chips prepared in the untwisted wood preparation step (S1) so that the fibers are cut uniformly so as not to be destroyed;
A screening step (S3) for filtering impurities contained in the whitening wood chips produced in the whitening wood chip manufacturing step (S2);
A hydrolysis step (S4) in which the liquid containing the water and the albino wood chips is 2 to 5.5: 1 in order to dissolve hemicellulose and lignin contained in the white rice flour after the screening step (S3);
A first washing step (S5) of washing the white wool chips after the hydrolysis step (S4) to remove hemicellulose and lignin dissolved in the pre-hydrolyzing step (S4);
A step (S6) of extracting alpha-cellulose from the untwisted wood chips that have undergone the first washing step (S5) using a liquid containing water, sodium hydroxide, and anthraquinone to obtain the untwisted wood fibers;
The processing conditions of the digesting step S6 are 15 to 25% of sodium hydroxide and the liquid ratio of the chemical solution (water, sodium hydroxide, and anthraquinone) to the unbleached wood chips is 1: 2.7 to 3.3,
A second washing step (S7) of washing the unbleached wood fibers obtained in the cooking step (S6) with water;
A foreign matter removing step (S8) of removing other foreign matter contained in the cotton wool fibers after the second washing step (S7) using a centrifugal damper;
The foreign matter is removed from the untreated wood fiber through the foreign matter removing step S8 using the pressure screen, and the unhardened portion is sent to the expanding portion to repeat the cooking step (S6) and the foreign matter removing step (S8) (S9);
A washing and concentration step (S10) of washing the remaining unsweetened wood fibers through the washing step S9 and washing and concentrating the water remaining in the untreated wood fiber;
A bleaching step (S11) of treating the untreated wood fibers that have undergone the washing and concentration step (S10) with a bleaching agent to remove the remaining lignin and other coloring materials to improve whiteness of the untwisted wood fibers;
An acid treatment and washing step (S12) in which the surface of the whitened whitewood fiber in the bleaching step (S11) and the acid treatment and washing step (S12) in which the surface is neutralized by acid treatment at pH 3 to 5.5 for removing metal ions present therein; And
(S13); compressing and drying the unbleached wood fibers, which have been acid-treated and washed in the acid treatment and washing step (S12), by pressing and drying to remove water and have a water content of 5 to 8%;
, And is characterized in that it is made of alpha-cellulose,

The fiber preparation step (S100)
Cotton fiber is 20 ~ 50mm in length and cotton fiber is 25 ~ 45mm in length.

The fiber mixing step (S200)
A method for producing a blended yarn of plain wood fibers and cotton fibers, which comprises blending 25-100 parts by weight of unbleached wood fibers with 100 parts by weight of cotton fibers.
delete delete delete A blend of cotton fibers and cotton fibers produced by the method of claim 1.

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