KR100625279B1 - Method for preparation of fiber containing polypropylene and fiber obtained from the method - Google Patents

Abstract

The present invention relates to a process for producing fibers comprising polypropylene and to fibers comprising polypropylene produced therefrom. The production method according to the present invention comprises the steps of preparing a knitted fabric comprising 3 to 100% by weight of polypropylene yarn; Refining the knitted fabric using a refining agent to remove oil contained in the weaving of the knitted fabric; Firstly drying the refined knitted fabric; Continuously impregnating the treated solution mixed in a weight ratio of a silicone type softener and a wax-based accelerator of 1: 3 to 3: 1 on the dried woven fabric; And secondary drying the continuous impregnated woven fabric. Since the fiber containing the polypropylene produced by the above method has a texture that is inferior to polyester, it can be utilized for clothing and can be usefully used as an industrial material by improving durability.

Polypropylene, Clothing, Textile

Description

Method for Preparation of Fiber Containing Polypropylene and Fiber Obtained from the Method}

1 is a flowchart illustrating a manufacturing process of a fiber including polypropylene according to an embodiment of the present invention.

The present invention relates to a process for producing fibers comprising polypropylene and to fibers obtained therefrom. More particularly, the present invention relates to a method for producing a fiber including polypropylene and a fiber obtained therefrom, wherein the fiber containing polypropylene is processed to improve the texture of the polypropylene.

So far, polypropylene has the advantage of price, but because it is inflexible and not resilient due to the characteristics of the resin, it was used for industrial purposes only because it was not useful as a fabric.

In other words, the use of polypropylene fibers has mainly progressed to the field that is not easily applied to other fibers. For example, heat-bonded non-woven fabrics have been used to make covers for baby diapers, as substrates for making secondary fabrics and vinyl fabrics in furniture manufacturing. In addition, it was used as a heat-sealed fiber in the manufacture of the fiber cushion for the mattress and also used to impart the shape stability of the sewing fibers (Needle-Bonded Fabric).

It is also used in the field of civil engineering, as a reinforcing cloth in the construction of roads and dams, and as a ground stabilization or roof cover.

Polypropylene fibers are made in many forms. Early polypropylene fibers were spun into mono-filaments and used in ropes, carpets, etc. because of their light and high strength properties. In addition, it can be made in the form of conventional multi-filament or staple fiber, or in the form of a ribbon-shaped slit. Melt-brown polypropylene fibers are used as filtration media, such as surgical masks and industrial filters, and spun-bond polypropylene is also used for packaging applications that require light weight and high strength.

On the other hand, in order to maintain the function of the fiber should be capable of dyeing, there is a limit to the applicability because the polypropylene is not dyed, but as a good compatibility pigment has recently been developed no longer a problem. Therefore, all polypropylene fibers used for interior decoration or carpet have gained color using pigments.

As such, polypropylene fibers are mostly used for industrial purposes and are not used for clothing. However, it is cheaper than polyester or nylon, and its specific gravity is low, so it is possible to obtain light fibers when weaving fabrics, and because there is no moisture absorption, it does not generate static electricity, does not burn well and does not form bacteria, so it can be used as a hygienic material. In addition, it is fast-drying and has a number of advantages of good thermal insulation due to low thermal conductivity, so it is worth using for clothing.

Therefore, the present inventors can provide a soft texture to the surface when processing the surface of the fabric or knitted fabric using polypropylene with a silicone type softener and a wax-based accelerator to compensate for the disadvantages of the existing polypropylene fiber. And the present invention was completed.

Therefore, the first object of the present invention is to provide a method for producing a fiber containing polypropylene.

It is also a second object of the present invention to provide a fiber comprising polypropylene.

In order to achieve the above technical problem, the present invention

Preparing a knitted fabric comprising 3 to 100% by weight of polypropylene yarn;

Refining the knitted fabric using a refining agent to remove oil contained in the weaving of the knitted fabric;

Firstly drying the refined knitted fabric;

Continuously impregnating the treated solution mixed in a weight ratio of a silicone type softener and a wax-based accelerator of 1: 3 to 3: 1 on the dried woven fabric; And

It is a method for producing a fiber comprising a polypropylene comprising the step of second drying the continuous impregnated woven fabric.

In addition, the yarn which can be woven with the polypropylene yarn in the preparation step of the woven and knitted fabric is preferably selected from the group consisting of natural pulp, acetate, polyester, acrylic and nylon.

The refining step of the knitted fabric, the step of mixing the refining agent with sodium hydroxide; Infiltrating a refining solution into the knitted fabric; And then aging the woven fabric into which the refining liquid has penetrated at a rotational speed of 1 to 20 rpm for 6 to 24 hours at a temperature of 30 to 50 ° C.

In addition, the primary drying step of the woven, knitted fabric is preferably dried by dry heat for 30 seconds to 1 minute at a temperature of 160 to 180 ℃.

In addition, the silicone type softener in the continuous impregnation step is 5 to 15% by weight of silicone oil, 2 to 6% by weight of polyoxyalkylene alkyl ether, 4 to 8% by weight of quaternary ammonium compound, and the remaining water It is preferable to use a cationic activator combination comprising a wax-based accelerator, 10-14% by weight of paraffin wax, 2-6% by weight of polyoxyethylene alkyl ether, 1-3% by weight of quaternary ammonium compound, isopropyl alcohol 0.05 Preference is given to using a high melting point wax emulsion formulation comprising from 2% by weight to 0.05% by weight of ethylene glycol and the remaining water.

Further, in the continuous impregnation step, it is preferable that the treatment liquid containing a softening agent and an accelerator is continuously impregnated for 5 to 10 seconds in the woven fabric.

In the second drying step of the knitted fabric, it is preferable to simultaneously dry the inside and the outside using infrared rays for 20 to 40 seconds at a temperature of 150 to 170 ° C.

In addition, in order to achieve the second technical problem, the present invention comprises the steps of preparing a knitted fabric comprising 3 to 100% by weight of polypropylene yarn; Refining the knitted fabric using a refining agent to remove oil contained in the weaving of the knitted fabric; Firstly drying the refined knitted fabric; Continuously impregnating the dried woven fabric with a treatment liquid mixed with a silicone type softener and a wax-based accelerator in a weight ratio of 1: 3 to 3: 1; And it is a fiber containing polypropylene produced by the manufacturing method comprising the step of secondary drying the continuous impregnated woven fabric.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

1 is a flowchart illustrating a manufacturing process of a fiber including polypropylene according to an embodiment of the present invention.

Referring to Figure 1, the method for producing a fiber containing polypropylene of the present invention comprises the steps of preparing a knitted fabric comprising 3 to 100% by weight of polypropylene yarn (S11); Refining the woven and knitted fabric by using a refining agent to remove the oil contained in the weaving of the woven and knitted fabric (S12); Firstly drying the refined woven / knitted fabric (S13); Continuously impregnating the dried woven fabric with a treatment liquid mixed with a silicone type softener and a wax-based accelerator in a weight ratio of 1: 3 to 3: 1 (S14); And secondary drying the continuous impregnated woven fabric.

In the preparation step of the woven and knitted fabric (S11), a woven and knitted fabric made of 100% polypropylene yarn may be prepared, and a woven and knitted fabric can be prepared using another kind of yarn for the polypropylene yarn. . Preferably, it is a woven / knit fabric which used other kind of yarn for polypropylene yarn.

In the above, other kinds of yarn may be selected from one or more kinds from the group consisting of natural pulp, acetate, polyester, acrylic and nylon, other than these may be used. In this case, at least 3% by weight or more of polypropylene must be included in order to achieve the advantages of using polypropylene.

Subsequently, a refining step S12 may be performed to remove the oil contained in the weaving of the woven or knitted fabric. The refining step (S12) is further subdivided to mix the refining agent with sodium hydroxide; Infiltrating a refining solution into the knitted fabric; And then aging the woven fabric into which the refining liquid has penetrated at a rotational speed of 1 to 20 rpm for 6 to 24 hours at a temperature of 30 to 50 ° C.

As the refining agent, a refining agent formulation including 10 to 15% by weight of phenol oil (oil phenol), 5 to 10% by weight of quaternary ammonium compound, 4 to 8% by weight of alkyl ether and the remaining water may be used, or commercially available SUNMORL WX -17 (product name) can be used. It is mixed in a dilution of sodium hydroxide (approximately 10-30%). In this case, the refining agent is preferably added in the range of 0.1 to 1 g per liter of sodium hydroxide diluent. The alkyl preferably has 1 to 50 carbon atoms.

Penetration of the sodium hydroxide solution containing the refining agent may be carried out in the same manner as the dipping method, and after infiltrating the refining solution and aged at a speed of 1 to 20 rpm for 6 to 24 hours at 30 to 50 ℃ temperature conjugate The cationic polyester side of the conjugated yarn is hydrolyzed. Thereby, the characteristic of sea island visibility is expressed.

If the aging temperature is less than 30 ℃ may cause problems such as slow hydrolysis, and if it exceeds 50 ℃ may cause a problem of non-uniform hydrolysis. In addition, if the aging time is less than 6 hours, the non-uniform hydrolysis of the edge of the yarn becomes a problem, if it exceeds 24 hours, too much delay in the manufacturing process state may be a problem in the process control part.

It is preferable that the refined woven fabric is washed continuously with cold and hot water using a device such as a continuous water purifier before drying.

Subsequently, the step S13 of firstly drying the continuous washed woven fabric is progressed. The drying temperature and drying time in the first drying step (S13) can be appropriately determined in the range that does not take a long time to dry, the curing phenomenon does not occur on the surface of the fabric, preferably using a fabric dryer such as 160 It is dried by dry heat for 30 to 1 minute at the temperature of -180 degreeC, and then cured for 20 to 40 second at 150-170 degreeC. The curing is done to shape the fabric and dry it completely.

In addition, the step (S14) of continuously impregnating the treated liquid mixed with a silicone type softener and a wax-based accelerator in a weight ratio of 1: 3 to 3: 1 in the dried woven fabric.

In the above, the softening agent is preferably a silicone type softening agent, and specifically includes 5 to 15% by weight of silicone oil, 2 to 6% by weight of polyoxyalkylene alkyl ether, 4 to 8% by weight of quaternary ammonium compound, and the remaining water. It is preferred that a cationic activator combination is used, and commercially available KF SILICONE AM-2000 (product name) may be used. In addition, the accelerator is preferably a wax-based accelerator, specifically, 10-14% by weight of paraffin wax, 2-6% by weight of polyoxyethylene alkyl ether, 1-3% by weight of quaternary ammonium compound, 0.05-2% by weight of isopropyl alcohol. It is preferred to use a high melting point wax emulsion formulation comprising 0.05 to 2% by weight of ethylene glycol and the remaining water, and commercially available SHEARLON P-404 (product name) may be used. Here, alkyl preferably has up to 50 carbon atoms.

Softeners and accelerators may be used in admixture in a weight ratio of 1: 3 to 3: 1. If the softener is too large, a problem of surface slippage may occur. If the softener is excessive, the uniformity of the cutting operation and slip may occur during brushing. In addition, through the blending ratio of the softening agent and the accelerator can be arbitrarily adjusted to the brushed form and hair length in the brushing operation.

It is preferable to continuously impregnate the processing liquid for 5 to 10 seconds in a woven or knitted fabric. In this case, continuous impregnation may be performed using a padding method. That is, in the padding method, the woven and knitted fabric are put in a padding box, and then passed through them continuously at a speed of 60 to 80 m / s so that the treatment liquid is applied to both sides of the woven and knitted fabric. In addition, when the impregnation time is out of time, the impregnation of the treatment liquid may be insufficient or impregnated with the fabric and the knitted fabric, thereby damaging the knitted fabric. In addition, continuous impregnation is preferable because the treatment liquid can be evenly applied to the fiber surface, unlike the batch type in which the treatment liquid can be locally aggregated.

Subsequently, the step (S15) of secondary drying of the fabric and knitted fabric which were continuously impregnated with the processing liquid proceeds. In the second drying step, it is preferable to simultaneously dry the inside and the outside using infrared light for 20 to 40 seconds at a temperature of 150 to 170 ℃. For example, an infrared drying device may be passed through to allow the interior and exterior to dry simultaneously. After the second drying step, curing is carried out for the shaping and complete drying of the fabric as well as after the first drying step.

These primary and secondary drying steps can maximize flexibility and rising effects.

After processing the fiber comprising polypropylene as described above, general steps such as rising, diamond brushing and viscous can be carried out. Here, the rising is a process of forming a brush on the surface of the fiber, the diamond brush is a process of surface treatment to have a beautiful surface gloss and a soft touch by brushing dozens or hundreds of times on the fabric surface and the raised brush, the brush is brush work This is the process of smoothing the finished brushing.

Fibers including polypropylene produced by the above method is reduced by 30 to 40% by weight compared to the woven and knitted fabric woven in the same ratio.

Hereinafter, although an Example is given and this invention is demonstrated in detail, this invention is not limited to an Example.

To weave in a warp knitting machine as shown in Table 1 to prepare a test piece.

division Combination weight ratio Sample 1 Tilt P.E.T 75D Weft P.P + P.E.T 215D P.P: P.E.T = 10: 90 Pile Hair Sample 2 Inclined P.E.T 75D weft P.P + nylon 185D P.P: P.E.T: nylon = 25:60:15 pile hair Sample 3 Tilt P.E.T 75D Weft P.P 65D P.P: P.E.T = 60: 40 Pile Hair Sample 4 Tilt PP + P.E.T 16D + 75D Weft P.P + Nylon 185D P.P: P.E.T: Nylon = 50: 35: 15 Pile hair Comparative Sample 1 Tilt P.E.T 75D Weft P.E.T 160D Pile Hair Comparative Sample 2 Tilt P.E.T 75D Weft P.E.T 150D Pile Hair

* P.E.T: Polyester P.P: Polypropylene

Example 1

In order to remove the oil contained while preparing Sample 1 of Table 1, sample 1 was immersed in a refining solution mixed with 4 g / L of SUNMORL WX-17 (product name) in 30 ml of 20% sodium hydroxide as a refining agent for 12 hours. Refining was performed. Subsequently, sample 1 was pressed and spread evenly using mangle, and after squeezing uniformly, it was wound in a roll using a betting machine and aged in a aging room at 40 ° C. for 12 hours to cause hydrolysis. Subsequently, the aged sample 1 was washed with water, and then dried using a cloth straightener (fabric dryer) at a temperature of 180 ° C. for 1 minute and then cured at 160 ° C. for 30 seconds. Subsequently, sample 1 was used as a softening agent, 2 g / L KF SILICONE AM-2000 (manufactured by Nakasa, Japan) as a softener, and 1 g of SHEARON P-404 (manufactured by Nakasa, Japan), which was a cationic type high melting point wax as a promoter. The treatment liquid was applied to both sides of Sample 1 by adding / L to a padding box containing the treatment liquid mixed therewith and continuously passing at a speed of 60 m / s. Subsequently, Sample 1 applied to both sides of the treatment liquid was passed through the infrared dryer at a speed of 60 m / s and then cured at 160 ° C. for 30 seconds. Subsequently, after eight rising operations using inverter type 36 of Daeho Machinery Co., Ltd. as a rising machine, diamond brushing and viscous were performed to produce fibers.

Example 2

It carried out similarly to Example 1 except using the process liquid which mixed 2 g / l softener and 2 g / l accelerator.

Example 3

It carried out similarly to Example 1 except using the process liquid which mixed 3 g / l softener and 2 g / l accelerator.

Example 4

It carried out similarly to Example 1 except using the process liquid which mixed 3 g / l softener and 3 g / l accelerator.

Example 5

The same procedure as in Example 1 was conducted except that Sample 2 was used.

Example 6

It carried out similarly to Example 1 except having used the sample 2 and using the process liquid which mixed 2 g / l softener and 2 g / l accelerator.

Example 7

It carried out similarly to Example 1 except using sample 2 and using the process liquid which mixed 3 g / l softener and 2 g / l accelerator.

Example 8

It carried out similarly to Example 1 except using sample 2 and using the process liquid which mixed 3 g / l of softeners and 3 g / l of accelerators.

Example 9

The same procedure as in Example 1 was conducted except that Sample 3 was used.

Example 10

It carried out similarly to Example 1 except using sample 3 and using the process liquid which mixed 2 g / l of softener and 2 g / l of accelerator.

Example 11

It carried out similarly to Example 1 except using sample 3 and using the process liquid which mixed 3g / l softener and 2g / l softener.

Example 12

It carried out similarly to Example 1 except using sample 3 and using the process liquid which mixed 3 g / l of softeners and 3 g / l of an accelerator.

Example 13

The same procedure as in Example 1 was conducted except that Sample 4 was used.

Example 14

It carried out similarly to Example 1 except using sample 4 and using the process liquid which mixed 2 g / l of softener and 2 g / l of accelerator.

Example 15

It carried out similarly to Example 1 except using sample 4 and using the process liquid which mixed 3 g / l of softeners and 2 g / l of accelerators.

Example 16

It carried out similarly to Example 1 except having used the sample 4 and using the process liquid which mixed 3 g / l softener and 3 g / l accelerator.

Comparative Example 1

The same procedure as in Example 1 was conducted except that Comparative Sample 1 was used.

Comparative Example 2

It carried out similarly to Example 1 except using the comparative sample 1 and using the process liquid which mixed 2 g / l softener and 2 g / l softener.

Comparative Example 3

It carried out similarly to Example 1 except using the comparative sample 1 and using the process liquid which mixed 3 g / l softener and 2 g / l softener.

Comparative Example 4

It carried out similarly to Example 1 except using the comparative sample 1 and using the process liquid which mixed 3 g / l softener and 3 g / l accelerator.

Comparative Example 5

The same procedure as in Example 1 was conducted except that Comparative Sample 2 was used.

Comparative Example 6

It carried out similarly to Example 1 except using the comparative sample 2 and using the process liquid which mixed 2 g / l softener and 2 g / l accelerator.

Comparative Example 7

It carried out similarly to Example 1 except using the comparative sample 2 and using the process liquid which mixed 3 g / l softener and 2 g / l softener.

Comparative Example 8

It carried out similarly to Example 1 except using the comparative sample 2 and using the process liquid which mixed 3 g / l softener and 3 g / l softener.

Test Example

The textures of the fibers obtained in Examples 1 to 16 and Comparative Examples 1 to 8 were examined through a sensory test, and the results are shown in Table 2. The three-point scale was used.

Example number Sensory test result 1 (sample 1) 3 2 (sample 1) 2 3 (sample 1) 3 4 (sample 1) 3 5 (sample 2) 3 6 (sample 2) 3 7 (sample 2) 2 8 (sample 2) 3 9 (sample 3) One 10 (sample 3) One 11 (sample 3) 2 12 (sample 3) 2 13 (sample 4) 3 14 (sample 4) 2 15 (sample 4) 3 16 (sample 4) 3 Comparative Example 1 (Comparative Sample 1) 3 2 (comparative sample 1) 3 3 (comparative sample 1) 3 4 (comparative sample 1) 3 5 (comparative sample 2) 3 6 (comparative sample 2) 3 7 (comparative sample 2) 3 8 (comparative sample 2) 3

3: very good 2: excellent 1: moderate

As shown in Table 2, when samples 1, 2, and 4, in which polypropylene was knitted with other yarns, were inferior to fabrics using only polyester yarns (comparative samples 1 and 2), rather than sample 3 in which wefts were knitted with polypropylene only. It can be seen that.

The present invention is cheaper than polyester or nylon and has a low specific gravity, so that a light fiber can be obtained when weaving the fabric, and since there is no moisture absorption, there is no static electricity, it does not burn well, and it does not become a bacterium. Polypropylene, which can be used for clothing and is not used for clothing because of its poor texture, can be used and also has fast drying properties and good thermal insulation due to its low thermal conductivity, it is processed using a silicone type softener and a wax-based accelerator. This gives a texture that is inferior to polyester. Accordingly, it can be utilized for clothes, and also improves durability, and is also usefully used as an industrial material.

Claims (8)

Preparing a knitted fabric comprising 3 to 100% by weight of polypropylene yarn; Refining the woven / knitted fabric with a scouring agent to remove oil contained in the weaving of the woven / knitted fabric; Firstly drying the refined knitted fabric; Continuously impregnating the dried woven fabric with a treatment liquid mixed with a silicone type softener and a wax-based accelerator in a weight ratio of 1: 3 to 3: 1; Method for producing a fiber comprising a polypropylene comprising the step of second drying the continuous impregnated woven fabric. The method of claim 1, wherein the yarn that can be woven with the polypropylene yarn in the preparation step of the woven, knitted fabric of the fiber containing polypropylene selected from the group consisting of at least one selected from the group consisting of natural pulp, acetate, polyester, acrylic and nylon Manufacturing method. The method of claim 1, wherein the refining step of the knit / knitted fabric comprises: mixing a refining agent with sodium hydroxide; Padding a refining solution on the knitted fabric; And subsequently aging the knitted fabric knitted in the refining solution at a rotational speed of 1 to 20 rpm for 6 to 24 hours at a temperature of 30 to 50 ° C. The method of claim 1, wherein the primary drying step of the woven / knitted fabric is dried by dry heat at a temperature of 160 to 180 ° C. for 30 seconds to 1 minute. The method of claim 1, wherein in the continuous impregnation step, the silicone type softener includes 5 to 15% by weight of silicone oil, 2 to 6% by weight of polyoxyalkylene alkyl ether, 4 to 8% by weight of quaternary ammonium compound, and the remaining water. Cationic activator formulations are used, including 10 to 14 weight percent paraffin wax, 2 to 6 weight percent polyoxyethylene alkyl ether, 1 to 3 weight percent quaternary ammonium compound, 0.05 to 2 weight percent isopropyl alcohol, ethylene A high melting point wax emulsion formulation comprising 0.05 to 2% by weight glycol and the remainder of water is used. The method of claim 1, wherein in the continuous impregnation step, the processing liquid containing a softener and an accelerator is continuously impregnated for 5 to 10 seconds in the woven fabric.  The method of claim 1, wherein the secondary drying step is a method for producing a fiber containing polypropylene is to dry the inside and the outside simultaneously using infrared light for 20 to 40 seconds at a temperature of 150 to 170 ℃. Fiber comprising a polypropylene prepared according to any one of the preceding claims.

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