KR20130060609A

KR20130060609A - Polyester twisted yarn four making method antibacterial and deodorant properties

Info

Publication number: KR20130060609A
Application number: KR1020110126755A
Authority: KR
Inventors: 손황
Original assignee: 손황
Priority date: 2011-11-30
Filing date: 2011-11-30
Publication date: 2013-06-10

Abstract

PURPOSE: A method for fabricating a polyester composite filament with excellent antibacterial and deodorizing properties is provided to ensure deodorizing functionality, to be applied to a medical fabric and cloth, and innerwear, and to expand the use of the filament to interior and daily products. CONSTITUTION: A method for fabricating a polyester composite filament with excellent antibacterial and deodorizing properties comprises: a step of melting a master bath chip containing TiO_2 coated with apatite and a polyethylene terephthalate(PET) chip and supplying to a sheath part; a step of melting a PET semi-dull chip and supplying to a core part; a step of spinning a composite filament of sheath-core type at 289 deg. C; and a step of drawing with a first godet rolet(GR1) and a second godet roller(GR3) in a draw ratio of 3.6, and rolling.

Description

Polyester Twisted Yarn four making method antibacterial and deodorant properties

The present invention relates to a method for producing a polyester composite twisted yarn having excellent antibacterial and deodorant properties, and more particularly, to adding a sheath-core composite spinning technology of a nano photocatalyst having antibacterial and bactericidal functions. Development and use of functional materials by using customized fabric design technology and high-density fabric weaving technology Developing high-performance, high-sensitivity medical fabric products such as prevention of secondary infection in the hospital, odor of old people, odor, and antibacterial The present invention relates to a method for producing a polyester composite twisted yarn having excellent antibacterial and deodorant properties for use expansion.

With the recent rise in the LOHAS craze, the accelerated aging society, and the growing demand for higher quality of life, consumers are moving from the basic needs to the concept of textiles and clothing to high performance, high sensitivity, The pursuit of comfort, aesthetics and personality is increasing the demand for functional fibers and expanding the market.

The sterilization, deodorization, and antimicrobial functions of nanophotocatalysts are required to improve the functionality of medical fabrics in hospitals as there is a growing concern about secondary infections in hospitals where diseases caused by strains and new viruses are emergency. In relation to unpleasant odors, the smell of bedding and bedrooms, the smell of underwear sweats, the smell of toilets, the smell of food in the kitchen, and the smell of cigarettes remain in the garment, causing unpleasant feelings, especially in the elderly. The necessity of eliminating the smell of the elderly (nonene) is being realized with the increase of nurses who care for the elderly at home.

Therefore, the development of fibers or fabrics that have a function of self-deodorizing, that is, deodorant fibers, is attracting attention due to this background, and among them, ammonia (manure smell), trimethylamine (fish rot smell), hydrogen sulfide ( Eggs / milk scent) and methyl mercaptan (vegetable scent) are considered to be four major odors of life. It is a situation that fibers and products having a deodorant function have been developed in various ways such as odor efficiently by physical, chemical, biotech, and biological methods.

However, the materials currently sold in Korea are being used as antimicrobial materials containing almost silver components, and since most of the multifunctional fibers of sterilization, deodorization, and antibacterial are not commercialized, most of them are sold abroad, especially in Japan. Although yarn is being purchased and processed, the development of products is limited due to problems such as supply and demand of yarn. To impart this functionality, there are 1) yarn incorporation and 2) post-treatment. , Coding, printing, etc., but has a drawback that is difficult to give durability to the fiber compared to the yarn mixing method of 1).

On the other hand, as a prior art, Korean Patent Application No. 10-2002-0061715 (application date: October 10, 2002) discloses a "method of producing antibacterial, deodorant split type composite fiber", with reference to FIG. Explain.

The method for producing antimicrobial and deodorant split composite fibers according to the prior art is to produce a composite fiber having a split cross section by complex spinning two different polymers, one component or two constituting the composite fiber. And adding a liquid functional agent containing an inorganic fine particle ceramic substituted with a metal ion to the component.

Such a conventional patent discloses a technique for producing an antimicrobial, deodorizing split type composite fiber by using a master batch in which a porous inorganic particulate ceramic fine particle powder in which metal ions are substituted in one of two components of the composite fiber is mixed.

However, this method can lead to an increase in production costs due to master batch manufacturing.

In addition, the smaller the particle size of the antimicrobial and deodorant material is, the more effective the passability of the microfiber yarn is.The smaller the particle size, the stronger the tendency of particles to aggregate in the master batch manufacturing process. The problem that process workability deteriorates.

In order to solve the above technical problem, a method for preparing polyester composite twisted yarn having excellent antibacterial and deodorant properties is to develop a functional material using a sheath-core composite spinning technology added with a nano photocatalyst having antibacterial and bactericidal properties. And use The combination of customized fabric design technology and high-density fabric weaving technology to prevent secondary infections in hospitals, develop high-functional and highly sensitive medical fabric products such as elderly odors, odors, and antibacterial and antibacterial for expanding its use. ㆍ Providing a method for producing polyester composite twisted yarn having excellent deodorizing property.

In order to solve the above technical problem, the present invention provides a method for producing a polyester composite twisted yarn having excellent antibacterial and deodorant properties, by melting a masterbatch chip made of polyethylene terephthalate (PET) chip and apatite-coated TiO ₂ and supplying it to the sheet part. Then, polyethylene terephthalate (PET) semi-dull chip is melted and supplied to the core to spin the sheath-core composite filament at a spinning temperature of 289 ° C, and the first gourd roller GR1 and the second gourd It is characterized by winding after stretching with a draw ratio 3.6 with a roller GR3.

Preferably, the master batch chip supplied to the sheath part is composed of 10% by weight polyethylene terephthalate (PET) chip having an intrinsic viscosity (IV) of 0.8% and 15% by weight of apatite-coated TiO ₂ , 40 ppm after forming the master batch chip. It is characterized in that the dried.

Preferably, the apatite coated TiO ₂ Is characterized in that the particle size is 20nm.

Preferably, the sheath portion and the core portion are characterized in that the weight ratio of 50:50.

Preferably, the polyester composite filament is characterized in that the fineness of 70 ~ 74.8d / fila, strength 5.0g / d (including 5.13), elongation 33% (including 33.6), wet heat shrinkage 20% (including 7.4%).

The polyester filament is passed through the first feed roller using the manufactured filament as described above, and heat-treated in the primary heater at 170 ° C., and then the second feed roller is burned with a combustibility ratio of 1.20 to 1.45 using a combustion device. After extending | stretching by extending | stretching ratio 1.60-1.75, making it pass, it winds up at 450-550m / min.

As described above, the present invention, through the development of differentiated materials to secure new differentiated manufacturing technology of deodorizing functional cotton-like composite yarn and production of high value-added products, deodorizing function in an aging society, sterilization, antibacterial functional medical for preventing secondary infection in hospital There is an effect that can be applied to the use of fabrics, clothing, inner-wear (inner-wear), and further expand the product use in the interior, household goods.

1 is a view showing a conventional fiber.
Figure 2 is a block diagram according to the production method of the polyester composite twisted yarn excellent in antibacterial and deodorant of the present invention.
3 shows nanophotocatalyst particles of the present invention.
4 is a view showing the master batch chip drying of the present invention.
5 is a view showing a cross-sectional shape according to the TiO 2 concentration of the present invention.
Figure 6 is an enlarged cross-sectional view and surface of the TiO2 (3wt%) spinning development yarn of the present invention.
7 is a view showing the cross-sectional shape and elemental analysis result (EDS) of the TiO 2 concentration of 7wt% yarn of the present invention.
8 is a view showing the breaking strength characteristics for each 1st Heater temperature according to the draw ratio of the present invention.
9 is a view showing a cross-sectional shape of the nano TiO 2 / PET twisted yarn of the present invention.
Figure 10 is an enlarged cross-sectional view and surface of the fabric of the present invention.

According to an aspect of the present invention,

Melt and supply a master batch chip made of polyethylene terephthalate (PET) chip and apatite-coated TiO ₂ to the sheet part, and melt the polyethylene terephthalate (PET) semi-dull chip and supply it to the core part. A polyester having excellent antibacterial and deodorizing properties, wherein the composite filament of the core type is spun at a spinning temperature of 289 ° C., stretched at a draw ratio of 3.6 with a first high roller (GR1) and a second high roller (GR3). It was achieved by providing a method for producing the composite filament.

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

Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications are possible.

The present invention is the development of functional materials using Sith-core composite spinning technology with the addition of nano photocatalyst with antibacterial and bactericidal function and the use of tailored fabric design technology and high-density fabric weaving technology to prevent secondary infection in the hospital, the elderly To develop high-functional, high-sensitivity medical fabric products such as odors, odors, and antibacterial products, and to expand their use.

The present invention develops sterilization, deodorization, and antimicrobial functional material containing nano photocatalyst particles and escapes from the existing machining process and shortens the process and cotton-like material by unifying the machining process and the jointing process through the modification of the weaving machine. It is to develop new process high-functional products through the development of weaving, dyeing and processing technology suitable for the purpose by economically producing.

In addition, the present invention aims to develop a functional medical structure product having antibacterial and deodorizing properties. In this research and development, nanoparticle composite functional yarns and fabrics having excellent antibacterial and deodorizing properties having 99.9% antimicrobial properties after 10 washes are developed. to be.

Referring to FIG. 2, in the production of polyester composite twisted yarn having excellent antibacterial and deodorizing properties, the method of providing antibacterial and deodorizing functions is as follows.

Melt and supply a master batch chip made of polyethylene terephthalate (PET) chip and apatite-coated TiO ₂ to the sheet part, and melt the polyethylene terephthalate (PET) semi-dull chip and supply it to the core part. The core-type composite filament is spun at a spinning temperature of 289 ° C., stretched at a draw ratio of 3.6 with a first gourd roller GR1 and a second gourd roller GR3, and then wound up.

The spinning conditions are shown in Table 1.

Test variety (POY 130 / 36f)
division
Radiation test 3wt%
Sheath-core ratio

50:50
Sheath-core polymer composition

3wt% Polymerized Chip
/ PET SD
Spinning temperature (℃)

289
GR1 temperature (℃)
/ speed (m / min)

96/1157
GR2 temperature (℃)
/ speed (m / min)

125/4190
Stretching cost

3.6
Winder speed (m / min)

4,100
Deir

74.8
Strength (g / d)

5.13
Elongation (%)

33.6
Wet Heat Shrinkage (%)

7.4

In order to develop a yarn in a composite filament method using polyethylene terephthalate semi-dull as a core part of the master batch chip according to the TiO2 concentration for the development of functional fiber having antibacterial, deodorizing and UV shielding properties The test was carried out with POY 130 / 36f varieties with varying spinning conditions, which could be operated and the basic properties and quality applied to the fabric.

Here, the master batch chip supplied to the sheath part is composed of 10% by weight polyethylene terephthalate (PET) chip having an intrinsic viscosity (IV) 0.8 and 15% by weight of apatite-coated TiO ₂ , 40 ppm after forming the master batch chip. To dry.

On the other hand, the material properties of the master batch chip is shown in Table 2, the particle picture is shown in FIG.

division

15wt%
Particle measurement

Galai CIS-1 particle size analyzer
Apatite Coated TiO2
Particle size (nm)

20
Intrinsic Viscosity (IV)

0.8

In other words, in order to manufacture antimicrobial and deodorizing functional fibers carrying nano photocatalytic particles, a master batch chip was prepared by using a polyethylene terephthalate chip having an IV of 0.8% by concentration of 15 wt% of apatite-coated TiO 2 having a particle size of 20 nm. It is dried to about 40ppm and put into spinning process.

Detailed physical properties are shown in Table 3.

division

3wt%
Viscosity Measurement

OCP method
TiO2 particle size (nm)

20
Intrinsic Viscosity (IV)

To 0.8
compound/
Polyethylene Terephthalate Chip IV

0.581
Drop(%)

35.3

In addition, the apatite coated TiO ₂ Has a particle size of 20 nm.

At this time, the sheath portion and the core portion are manufactured in a weight ratio of 50:50.

On the other hand, drying is a moisture content using a vacuum dryer (Tumbler dryer) to remove the moisture contained in the chip in order to improve the radioactivity of the master batch chip or polyethylene terephthalate chip according to the TiO2 concentration as shown in FIG. It dried to 30 ppm or less.

On the other hand, the sizing to pull the yarn into the yarn during the weaving process used a KAJI KS-3 Type machine, and the chamber was worked at a sizing speed of 20 m / min at a temperature of 90 ° C.

Sizing conditions are shown in Table 4.

division

DTY 75 / 36-S / C (Type O)

Concentration

Water 40L,
PVA 4L,
Concentration 11%
Firing speed (m / min)

20
Chamber temperature (℃)

90
Sizing Temperature (℃)

40

Weaving was RPM 550 and weaved in a 190 type loom with AJLoom (TOYOTA, Japan) equipment equipped with a dobby device for the loom, and melt spun according to the TiO2 concentration and the chip source.

[Comparative Example]

Cost Property Evaluation

1) four fineness experiment

Based on KS K 0416 filament yarn's fineness measurement method (winding method), the sample is wound 90 times on a 1m reel and dried for 30 minutes at 50 ℃ inside the heating chamber. The fineness of the yarn was measured using a balance of ± 0.5 mg.

2) Sign strength

Each sample left at room temperature for 24 hours using Textechno Statimat Me. (German) was tested 10 times under conditions of a sample length of 200 mm and a test speed of 2000 m / min. Breaking Tenacity and Breaking Elongation were obtained from the software provided in the experimental device, and the average value of 10 times was obtained from each result.

3) Yarn shrinkage characteristic

○ Hank (KS K 0215) wet heat shrinkage test

After winding the sample on the reel of the checker and making it into a state of sling, apply a 0.1 g / d ultra-load to the yarn to obtain the ledger, and then, under water-tension for 100 minutes in a water bath for 30 minutes. After immersion, wet heat treatment, and allowed to stand at room temperature for 24 hours or more, the amount of shrinkage was measured by measuring the length of 0.1g / d on the sample and measuring the length.

It is a filament that is passed through spinneret inside a pack through a polymer pile in a molten state in a melted and melted state in a sheath-core composite spinning method. Since the shape of the cross section is determined by the spinneret, the performance of the cross-sectional shape is greatly affected by the spinning conditions (spinning temperature, hole diameter, length, discharge amount, cooling condition) of the spinneret.

5 and 6 show the cross-sectional shape according to the TiO 2 concentration, particle size, polymer I.V. As the TiO 2 concentration increased, the aggregation frequency and size of the particles were increased, and the lower concentration was uniformly distributed.

And, Figure 7 shows the cross-sectional shape and elemental analysis results of the yarn spun alone at 10 wt% TiO2 concentration in the secondary spinning test. Ti, O, and C elements were detected at each point, and the quantitative values were different according to the degree of dispersion of TiO2.

In other words, the polyester composite filament prepared as shown in Table 1 has a fineness of 70 ~ 74.8d / fila, strength 5.0g / d (including 5.13), elongation 33% (including 33.6), wet heat shrinkage 20% (7.4%) Inclusive).

Flammable conditions are shown in Table 5.

Condition Four
(m / min) 1st Heater Temperature () Stretching cost VR Fineness
(d) burglar
(g / f) Shindo
(%) Moist heat
Contraction ratio
(%) One 500
170 1.60 1.450 54.8 4.10 34.4 11.9 2 1.65 54.7 4.35 30.6 11.6 3 1.70 54.6 4.40 29.0 114 4 180 1.60 52.9 4.17 33.9 11.6 5 1.65 52.9 4.33 30.2 10.6 6 1.70 52.7 4.44 26.8 11.7 7 190 1.60 51.6 4.21 32.9 11.4 8 1.65 51.9 4.36 27.9 11.3 9 1.70 51.7 4.34 24.1 11.1

Nano TiO2 / PET Combustible Yarn is to investigate the effects on the properties of combustible yarns according to the combusting process for nano TiO2 / PET POY 85/36 materials developed by Pilot spinning equipment. , Drawing ratio, etc.) was changed to draw the optimum manufacturing conditions of nano TiO2 / PET combustible materials.

In addition, the physical property analysis according to the flammability conditions is the most important factor for the fixed factor and flammable change factor (1st heater temperature, draw ratio, etc.) for each combustor for DTY flammability test on nano TiO2 / PET POY 85/36 material. The optimum nano TiO2 / PET DTY 50/36 flammable material was developed by analyzing the effects on physical properties and split uniformity such as shrinkage characteristics of combustible yarns.

In order to investigate the effects of the flammability conditions on the cutting strength characteristics of nano TiO2 / PET twisted yarns, the comparative analysis of the cutting strength / elongation of materials prepared by the flammability conditions was carried out ,

As shown in FIG. 8, 1st heater temperature (180 ° C.) conditions were shown to show the change in cutting strength according to the DR and 1st heater temperature changes at 500 m / min in the firing speed of the nano TiO2 / PET POY 85/36 material when burning. As the draw ratio increased from (1.60 → 1.70), the cutting strength increased and the cutting elongation decreased, which increased the crystallinity with increasing draw ratio.

In addition, the results of the physical property change according to the flammability conditions of the nano TiO2 / PET POY material show that the flammability effect and the cross-sectional formation of the 1st heater temperature of 180 ° C and DR 1.65 are considered as the post-process workability. It is determined to be uniform and optimal conditions, the physical properties of the nano TiO 2 / PET DTY 50/36 according to it is shown in Table 7, the cross-sectional shape of the nano TiO 2 / PET twisted yarn is as shown in FIG.

Material spec.

Firing speed (m / min)
Stretching cost
1st Heater Temperature (℃)
VR

DTY 50/36

5
1.650
180
1.50

Material spec.

Island degree (d)
Elongation at break (%)
Cutting strength (g / d)
Shrinkage (%)

DTY 50/36

53.1
22.4
4.53
16.6

Thus, the cross-section and the surface of the fabric produced by the method for producing a polyester composite twisted yarn excellent in the antibacterial and deodorant of the present invention is as shown in FIG.

It was developed as DTY75 / 36 after spinning by burning anti-bacterial and deodorizing functional POY130 / 36 with nano photocatalyst. .

Here, the weaving and dyeing process is produced by a conventional process.

Weaving both 11,000 and 14,000 pieces into plain and TWILL or MATT tissues, weaving them into two types of thin and ENrjDNS fabrics, and using 100% of all weft yarns in order to enhance antimicrobial properties. For the sake, the inclination was sizing (weather) and the weft yarn was not twisted yarn.

In this way, through the development of materials differentiated by the polyester composite twisted yarn with excellent antibacterial and deodorant properties of the present invention, by securing new differentiated manufacturing technology of deodorizing functional cotton-like composite yarn and producing high value-added products, Application of sterilization, antibacterial functional medical fabrics, clothing, innerwear, etc. to prevent secondary infection in hospitals, and further expansion of product use in interior and household goods.

Although described and illustrated with respect to some embodiments for illustrating the technical idea of the present invention, the present invention is not limited to the configuration and operation as described and described as such, and deviate from the scope of the technical idea It will be appreciated by those skilled in the art that many modifications and variations can be made to the present invention without departing from the scope of the invention. And all such modifications and changes as fall within the scope of the present invention are therefore to be regarded as being within the scope of the present invention.

none

Claims

Melt and supply a master batch chip made of polyethylene terephthalate (PET) chip and apatite-coated TiO ₂ to the sheet part, and melt the polyethylene terephthalate (PET) semi-dull chip and supply it to the core part. A polyester having excellent antibacterial and deodorizing properties, wherein the composite filament of the core type is spun at a spinning temperature of 289 ° C., stretched at a draw ratio of 3.6 with a first high roller (GR1) and a second high roller (GR3). Method for producing a composite filament.

The master batch chip according to claim 1, wherein the master batch chip supplied to the sheath portion comprises 10 wt% of polyethylene terephthalate (PET) chip having an intrinsic viscosity (IV) of 0.8 and 15 wt% of apatite-coated TiO _2. Method for producing a polyester composite filament excellent in antibacterial and odor, characterized in that dried to 40ppm after formation.

The apatite coated TiO ₂ according to claim _2. Is a method for producing a polyester composite filament excellent in antibacterial and odor, characterized in that the particle size is 20nm.

The method according to claim 1, wherein the sheath portion and the core portion have a weight ratio of 50:50.

The method of claim 1, wherein the polyester composite filament has a fineness of 70 ~ 74.8d / fila, strength 5.0g / d (including 5.13), elongation 33% (including 33.6), wet heat shrinkage 20% (including 7.4%) Method for producing a polyester composite filament excellent in antibacterial and odor.

After passing through the first feed roller of the polyester composite filament according to claim 1 to 5 and heat treatment in the primary heater at 170 ℃, the second feed roller while burning at a combustibility ratio of 1.20 ~ 1.45 using a flammable device A method for producing a polyester composite twisted yarn having excellent antibacterial and odor resistance, characterized by stretching at a draw ratio of 1.60 to 1.75 while passing through, followed by winding at 450 to 550 m / min.