KR20200088227A - Printing method of salted polypropylene fiber and polyethylene terephthalate composite fiber or salted polypropylene fiber and thermal insulation lightweight rash guard using the printing fiber - Google Patents

Abstract

The present invention relates to a printing method of salted polypropylene fiber or blended complex fiber of salted polypropylene fiber and polyethylene terephthalate composite fiber and a thermal insulation lightweight rash guard manufactured by using printed complex fiber. More specifically, disclosed are the printing method of salted polypropylene fiber or blended complex fiber of salted polypropylene fiber and polyethylene terephthalate composite fiber and the thermal insulation lightweight rash guard manufactured by using the printed complex fiber, wherein the printing method comprises: a step of preparing the salted polypropylene fiber and the blended complex fiber of the salted polypropylene fiber and the polyethylene terephthalate composite fiber and preparing a circular knitted fabric which circularly knits the fiber in a double layer with a double-sided circular knitting device; a step of printing the circular knitted fabric with low-temperature ingredient salt; and a burning out step of burning out printed fabric in which printing is completed. The present invention can be applied to various sportswear.

Description

Printing method of salted polypropylene fiber and polyethylene terephthalate composite fiber or salted polypropylene fiber and thermal insulation lightweight rash guard using the printing fiber}

The present invention relates to a method for printing a mixed composite fiber of a chlorinated polypropylene fiber or a chlorinated polypropylene fiber and a polyethylene terephthalate fiber, and a heat-resistant lightweight rash guard manufactured using the printed composite fiber.

Polypropylene (PP) fiber is a fiber with a strength of 4.5 to 9.0 g/d and an elongation of about 25 to 60%, and has mechanical properties comparable to those of the most commonly used polyester fiber or nylon fiber. It is an excellent textile material with excellent chemical resistance. Considering that the specific gravity of the fiber is about 0.90 to 0.93 and the specific gravity of the general fiber material is at least 1.1 to 1.2, the lowest specific gravity among all fibers can be achieved, and at least 20% lighter weight can be realized when assuming the same condition of the fabric.

In addition, it is known as a textile material that floats in water because it has a specific gravity of less than 1.0. Since polypropylene fiber has a smaller specific gravity than other fibers, it is light and does not generate static electricity when fabricated as a fabric, and it is not hygienic as well as difficult to grow bacteria. And, because of the low thermal conductivity, it is excellent in heat retention. It is especially strong against chemicals such as strong acid and strong alkali, and has no damage to insects or moths. Because of its excellent chemical resistance, it does not discolor even when it comes in contact with chlorine. In the case of the polyester fiber, the relative dielectric constant is 3.2, whereas the relative dielectric constant of the polypropylene fiber is 2.2, so it is a material that can provide a comfortable fit due to low static electricity generation.

The moisture content of the fiber also shows a low value of less than 0.05%. This extremely low moisture content acted as a disadvantage in the development of general apparel in the past, but in the clothing material for sports and leisure, there is a high demand for quick drying of sweat quickly. Is being utilized. Moisture quickly evaporates through the fibrous tissue and the air exhibits excellent wicking properties, which are contained in the fibrous tissue as it is. The potential as a fast-absorbing and fast-drying material is increasing with the combination of suitable materials and the application of post-processing methods. In addition, since it absorbs little moisture and has no bacteria-generating factor itself, it has its own antimicrobial function. Therefore, the application is progressing to the outer cover of baby diapers, buckets, and women's physiology. It is a harmless fiber certified by the FDA.

In addition, since the molecular structure of the fiber structure is composed of only C and H, it does not degrade the performance of the polymer during recycling, and has various eco-friendly factors such as not generating harmful toxic gases during incineration. As a material, its use is expanding. The energy consumption in the manufacturing method is the smallest, the melting point is low when regeneration is performed, and it can be easily re-dissolved.

The characteristics of these polypropylene fiber materials have recently been greatly expanded and activated by sportswear and leisure clothes that require lightweight materials, and their use is greatly increasing, and related companies are also attempting to develop products using these materials.

However, due to the difficulty in post-staining due to the non-polar structure of polypropylene fibers and the denseness of the molecular structure having a high crystal region of 2/3 or more, the fibers of the original (or ombre) type produced by adding pigments during spinning account for most of them. have. In the case of the original polypropylene fiber, as the color is determined simultaneously with the production of the fiber, lot management is difficult and management costs are high. In addition, there is a difference in cost depending on the color, and it is possible to produce only monochromatic knitted fabrics or patterned fabrics. This provides useful coloring in practice, but the start-up and color change of the plant requires a long induction time with respect to the corresponding large amount of waste until the plant is operated constantly. Therefore, only the manufacture of large batches has economic implications. For example, relatively small batches for fashion reference color requirements cannot be produced economically or in a short frame. It is also not easy to achieve bright colors. Depending on the pigment, thermal decomposition occurs, and there is a risk of discoloration. Due to the hassle of creating a masterbatch for each color, it is restricted in displaying various colors. Therefore, the poor dyeability after extrusion has been hindering the wider use of polypropylene fibers in the textile field. Despite the inherent desirable properties for use in the field of apparel fibers, especially sports and leisure apparel, polypropylene fibers are seldom used for that purpose.

In an effort to solve this, polypropylene is modified to introduce a dyeable functional group, or polypropylene is mixed with a melted polyester to spun it to form a mixed fiber to be dyed to use polyester or other pretreatment. I am using it through the process. The method by polymer modification has a problem in the uniformity of fiber quality because it is difficult to control the length of the polar monomers during graft copolymerization, but the physical properties of the radicals generated during graft copolymerization are difficult to control. The physical compounding method is a method of compounding by adding EVA (Ethylene-co-Vinylacetate) having a hydrophilic group to a hydrophobic PP chip, and has excellent radioactivity and dyeability, but has problems in workability. The method of introducing functional groups by treatment with chemicals after irradiation is a method of irradiating electron beams, gamma rays, and plasma to PP fibers in the air and treating them with chemicals to introduce a dyeing seat, which has not reached the full commercialization stage, and the process is complicated. And uneconomical. In the case of the pre-treatment process, a reduction cleaning process and the like are additionally added to the non-environmental-friendly problem, and it is only at the level of modification using mixed spinning polypropylene fibers.

1. Republic of Korea Patent Publication No. 10-2012-0121127 2. Republic of Korea Patent Publication No. 10-2016-0140616 3. Korean Registered Patent Publication No. 10-0925019

In the present invention, a printing process that has established a suitable printing process for a mixed composite fiber having a warmth/antibacterial function knitted into a warp knitted fabric or circular knitted fabric by using a flame-retardant polypropylene or flame-retardant polypropylene (PP) fiber and polyethylene terephthalate (PET) The solution is to provide a printing method of polypropylene fiber or a composite fiber of a polypropylene fiber and a polyethylene terephthalate mixture.

In addition, another solution to the present invention is to provide a heat-resistant lightweight rash guard processed using a composite fiber printed by the printing method provided.

For the purpose of solving the above problems, in the present invention, a woven or knitted fabric prepared by mixing woven polypropylene fiber alone or chlorinated polypropylene (PP) fiber (PP)/polyethylene terephthalate (PET) mixed composite fiber is prepared. And to establish and provide a process for printing it, and to provide a lightweight rash guard to which a heat retention function has been provided by using warp knitted or circular knitted fabric provided thereby.

The printing method of the chlorinated polypropylene fiber or the chlorinated polypropylene fiber and the polyethylene terephthalate blended composite fiber of the present invention, which solves the above-described problems, is prepared by preparing a chlorinated polypropylene fiber or a chlorinated polypropylene fiber and a polyethylene terephthalate blended composite fiber. , Preparing the circular knitted fabric of the fiber into a double layer tissue using a double-sided circular knitting machine;

Printing the circular knitted fabric using a low-temperature component salt material; And

It characterized in that it comprises a burnout step of burning out the printing fabric is completed printing.

Here, the printing step is characterized in that it comprises the following steps.

(a) After pre-processing the circular knitted fabric, rotary printing is performed with a printing dye containing 0.1 to 5% by weight of low-temperature ingredient salt, 1 to 3% by weight of a paste preparation, 0.1 to 3% by weight of a binder and a residual amount of solvent. Printing steps;

(b) after printing, drying in a dryer at a temperature of 120 to 130° C. for 90±5 seconds;

(c) steam-heating the dried composite fiber at a temperature condition of 140° C. for 10 minutes;

(d) after steam heating, washing with water for 5 to 20 minutes at a temperature condition of 90±5° C., followed by dehydration;

(e) after dehydration, drying for 90±5 seconds at a temperature of 120° C. or less;

Here, the burnout step is characterized in that it comprises the following steps.

(A) After the refining step is completed, refining the circular knitted fabric at 100~110°C, dehydrating it, setting it in a temperature range of 100~120°C in the tender, and then low-temperature high-pressure dispersion powder 20~30 with respect to 100 parts by weight of solvent in the printing machine. Step of using a dye mixed with parts by weight;

(B) drying at 120 ~ 130 ℃ in the dryer after the blade step;

(C) after drying, distilling at 140° C. for 8 to 10 minutes;

(D) after the heating step, using a mixture of a reducing agent and caustic soda in a weight ratio of 1:1, washing with water at a temperature of 60° C. and then dehydrating;

(E) After dehydration, drying in a dryer at a temperature of 100°C for 30 minutes, followed by a tenter process to adjust the width for 5 minutes in a temperature range of 140°C or less.

Here, the material preparation in step (a) is characterized in that it is a mixed preparation in which 1 to 3 parts by weight of a thickener, 0.1 to 1 part by weight of a metal ion blocker, and 0.1 to 1 part by weight of malic acid.

Here, the binder of the step (a) is characterized in that any one of NF-300, AR-901 as a cationic binder.

Here, the thickener is characterized in that it is a resin (Resin) thickener or an acrylamide (Acrylamide) thickener.

Here, in step (d), water washing is performed using 1 to 2 parts by weight of solvent, 0.1 to 3 parts by weight of sodium hydroxide, 0.1 to 0.5 parts by weight of caustic soda, and 0.1 to 0.5 parts by weight of R/C agent. It is characterized by.

Here, the flame-retardant polypropylene fiber is a polypropylene polymer having a MI value of 34, and a 10 wt% fluorescent master batch (Master Batch), a 20 wt% Cachion diaphragm polymer master batch, or a 30 wt% Al2O3 water-soluble PET master batch is 1~. It is characterized by using a fine fiber of SDY 50d/36f, which was spun through a spinneret by performing 2% by weight dosing.

Here, the flame-retardant polypropylene fiber and polyethylene terephthalate blend composite fiber are PP DTY 50d/36f 89% by weight, Span 20D 11% by weight; 33% by weight of PP DTY 50d/36f, 22% by weight of PP 50d/36f (Tuck), 33% by weight of antibacterial PET 50d/36f, 12% by weight of Span 20D; 33% by weight of PP DTY 50d/36f, 22% by weight of PP 50d/36f (Tuck), 33% by weight of PET 50d/36f, 12% by weight of Span 20D; 33% by weight of PP DTY 50d/36f, 22% by weight of PP 50d/36f (Tuck), 33% by weight of PET 50d/36f, 12% by weight of Span 20D; 28% by weight of PP DTY 75d/36f, 32% by weight of PET 50d/36f (Tuck), 32% by weight of PET 75d/36f, 8% by weight of Span 20D; PP DTY 75d/36f 35% by weight, PET 50d/36f (Tuck) 22% by weight, PET 50d/36f 34% by weight, Span 20D 9% by weight; PP DTY 75d/36f 35% by weight, PET 50d/36f (Tuck) 22% by weight, lecture PET 75d/36f (34)% by weight, Span 20D 9% by weight; PP DTY 75d/36f 35% by weight, PET 50/36 (Tuck) 22% by weight, antibacterial PET (ATB) 75d/72f 34% by weight, Span 20D 9% by weight of composite fiber A method of printing a woven polypropylene fiber or a woven polypropylene fiber and a polyethylene terephthalate blended composite fiber.

In addition, the present invention provides a heat-resistant lightweight rash guard using a printing fiber provided by the printing method disclosed above.

Here, a silicone resin mixed with 10-15 parts by weight of a curing agent against 100 parts by weight of silicone on one side of the printed fiber is coated on release paper using a silk screen, and then first aged at 170-210°C for 15 seconds. Then, a second silicone coating was performed on the top surface using a silk screen, followed by secondary aging for 15 seconds at a temperature condition of 180 to 190° C., and then a printing fabric was attached and thermally compressed using a roller press to coat the silicone. , Separating the coated fabric from the release paper and then aging at a temperature of 170~210℃ to use the finished silicone coated fabric.

In the present invention, in the case of the printing process of synthetic fibers such as PP/PET (NYLON), there is a difficulty in the high-temperature printing process of PET (NYLON) by the low-temperature printing process of PP, but it is possible to overcome this temperature difference and printing It also has the advantage of enabling various designs and developing various uses of the product.

In addition, by applying PP material, it has the advantages of light weight, quick-drying sweat, and warmth while maintaining some buoyancy, so it can be applied to Leshguard, a fashionable underwater sportswear that secures safety as well as various other sportswear. It also has the advantage of being able to be extended to applications.

1 is a photograph of a printed composite fiber according to an embodiment of the present invention.
Figure 2 is a photograph showing a printed copper plate used for printing according to an embodiment of the present invention.
Figure 3 is a graph showing the results of analysis of two important thickeners in TGA, GC-MS, FT-IR when blending the material in printing according to an embodiment of the present invention.

Hereinafter, the present invention will be described in more detail.

The present invention relates to a printing method of a printed polypropylene fiber or a polypropylene fiber and a polyethylene terephthalate blended composite fiber, and a heat-resistant lightweight rash guard using the printed fiber. In particular, the safety and heat retention function of the existing buoyancy vest and the rash guard The purpose of the present invention is to provide a heat-resistant leash guard using a printing method of fibers used in water sports clothing products and a printing fiber provided by the printing method.

The printing method of the flame-retardant polypropylene fiber or the flame-retardant polypropylene fiber and the polyethylene terephthalate blended composite fiber prepares a flame-retardant polypropylene fiber or a flame-retardant polypropylene fiber and a polyethylene terephthalate blend composite fiber, and the fibers are double-sided. Preparing a circular knitted fabric into a double layer tissue using a circular knitting machine;

Printing the circular knitted fabric using a low-temperature component salt material; And

It characterized in that it comprises a burnout step of burning out the printing fabric is completed, the printing,

At this time, the printing step is made of a process sequence of Rotary Printing → Dry → Steaming → Washing → Dry, and more specifically, including the following steps. It is characterized by.

(a) After pre-processing the circular knitted fabric, rotary printing is performed with a printing dye containing 0.1 to 5% by weight of low-temperature ingredient salt, 1 to 3% by weight of a paste preparation, 0.1 to 3% by weight of a binder and a residual amount of solvent. Printing steps;

(b) after printing, drying in a dryer at a temperature of 120 to 130° C. for 90±5 seconds;

(c) steam-heating the dried composite fiber at a temperature condition of 140° C. for 10 minutes;

(d) after steam heating, washing with water for 5 to 20 minutes at a temperature condition of 90±5° C., followed by dehydration;

(e) after dehydration, drying for 90±5 seconds at a temperature of 120° C. or less

At this time, the rotary printing is a preferred example, as illustrated in FIG. 2 of the accompanying drawings, to design a printing design, and to produce a copper plate according to the designed design to perform printing.

After the printing is completed, when drying, the temperature range is preferably performed at a temperature of 120°C or less, preferably 100 to 120°C, more preferably 120°C. If it is dried at a temperature exceeding 120°C, it is because there is a problem that it can be cured, and at a temperature below 120°C, a problem arises in the drying speed.

Preferably, the drying after the printing is preferably performed by adopting a hot air drying method, and the drying time is preferably 90±5 seconds. If it exceeds the threshold of the time, the fabric may be hard or there may be a problem in color development.

After the drying is completed, a steam heating process is performed. At this time, the preferred temperature is preferably 140 °C or less, more preferably 130 to 140 °C in the temperature range. If it exceeds 140°C, the PP/PET composite material is vulnerable to heat, so that PP may melt and become stiff, and when performed below 120°C, there may be a problem in color fastness. .

After the steam steaming, a washing process is performed by preparing a washing solution. At this time, the preferred washing temperature and the washing time are washing with water for 20 to 30 minutes at a temperature condition of 90±5℃. After the water washing is completed, a dehydration process is performed.

After the dehydration, a drying process is performed. At this time, it is preferable to dry for 90±5 seconds at a temperature condition of 120° C. or less, more preferably at a temperature condition of 110 to 120° C.

The dried composite fiber is subjected to a tenter process in which the width is adjusted for 5 minutes in a temperature range of 140°C or less, more preferably in a temperature range of 130 to 140°C. If, when the temperature range exceeds 140 ℃, there is a problem that the PP is melted and stiff (Stiff), if less than 130 ℃ there is a disadvantage that the dyeing is not completely made.

According to the present invention, the printing arc used in the printing step is preferably one containing 0.1 to 3% by weight of a dye, 1 to 3% by weight of a pharmaceutical preparation, 0.1 to 3.0% by weight of a binder, and a residual amount of a solvent.

At this time, the binder is preferably a cation-based binder, it is preferable to use any one selected from NF-300, AR-901. The binder serves to dye the dye, and if the amount used is less than 1% by weight, it is difficult to expect dye to be dyed, and if it exceeds 5% by weight, there may be a problem that the fabric is stiff. More preferably, the amount of the binder used It is good to use it to contain 0.1 to 0.5% by weight.

The material preparation constituting the printing is preferably a mixture of 1 to 3 parts by weight of a thickener, 0.1 to 1 part by weight of a metal ion blocker, and 0.1 to 1 part by weight of malic acid. At this time, the thickener is preferably a resin (Resin) thickener or an acrylamide (Acrylamide) thickener, when the amount of use is less than 1% by weight, the viscosity is dilute, there is a difficulty in printing and when it exceeds 3% by weight Since the viscosity of the color arc is too high, it is difficult to implement a proper design on the fabric when implementing the design on the fabric in the work.

In addition, the metal ion sequestering agent is combined with a metal component that may possibly remain inside the material. If the mixing amount is less than 0.1 part by weight, the metal component inside the material may not be properly combined, and thus the metal ion blocking agent cannot be bonded to the metal bar. As it interferes with the printing design, it is difficult to realize a proper design by pinholes or metal components attached to metal rods. When it exceeds 1.0 part by weight, the metal components in the material are well combined with the metal ions in the material. It disappears, but there is a problem of increasing the viscosity of the material.

According to the present invention, it is preferable to use the material so that the amount of the additives satisfies the range of 1 to 3% by weight. If the amount used is less than 1% by weight, the color is combined with the fiber fabric by a coloring agent to develop color, but it is not easy to implement the color, there is a problem, and if it exceeds 3% by weight, after fabric design work There is a problem in that the washing work to remove the washing material is difficult to remove.

According to the present invention, preferably, the dye is preferably a low-temperature dispersion material.

According to the present invention, preferably, the solvent constituting the printing can be used by a person skilled in the art to appropriately select a solvent used in the art, for example, guar gum. In the present invention, the present invention was completed using guar gum as a solvent.

According to the present invention, after the water washing, the water washing agent used in the process of dehydration is preferably 0.5 to 3 parts by weight of solvent, 0.1 to 2 parts by weight of sodium hydroxide, 0.1 to 3 parts by weight of caustic soda, 0.1 of R/C agent It is to use a water washing agent containing ~3 parts by weight. At this time, the water washing agent serves to remove the residue. At this time, the R/C agent serves to remove dyes and thickeners, gums, guanines, and other dyes and dyes remaining on the fabric surface to prevent color migration.

The inventors of the present invention saw the PP/PET blend composite fibers printed by applying the printing process according to the present invention as described above, and the prepared composite fibers were woven PP/PET composite fibers to be included in the following weight ratio. I prepared.

#1: PP DTY 50d/36f 89% by weight, Span 20D 11% by weight;

#2: PP DTY 50/36 33 wt%, PP 50/36 (Tuck) 22 wt%, Antibacterial PET 50/36 33 wt%, Span 20D 12 wt%;

#3: PP DTY 50/36 33 wt%, PP 50/36 (Tuck) 22 wt%, PET 50/36 33 wt%, Span 20D 12 wt%;

#4: PP DTY 50/36 33 wt%, PP 50/36 (Tuck) 22 wt%, PET 50/36 33 wt%, Span 20D 12 wt%;

#5: PP DTY 75/36 28 wt%, PET 50/36 (Tuck) 32 wt%, PET 75/36 32 wt%, Span 20D 8 wt%;

#6: 35% by weight of PP DTY 75/36, 22% by weight of PET 50/36 (Tuck), 34% by weight of PET 50/36, 9% of Span 20D;

#7: 35% by weight of PP DTY 75/36, 22% by weight of PET 50/36 (Tuck), 34% by weight of lecture PET 75/36, 9% by weight of Span 20D;

#8: 35% by weight of PP DTY 75/36, 22% by weight of PET 50/36 (Tuck), 34% by weight of antibacterial PET (ATB) 75/72 + 9% by weight of Span 20D

The prepared composite fiber prepared a planning design as shown in FIG. 2 and a production copper plate according to the design, and performed a rotary printing process.

The dyes used were prepared dyes at a composition ratio as shown in Table 2 below, and in preparing a printing dye, 8.0 parts by weight of a thickener (MV-200; Hansong Industry Co., Ltd.), 1.0 parts by weight of a metal ion blocker and malic acid 0.3 10% by weight of the preparation of a mixture of parts by weight, a cationic binder (NF-300; Hansong Industry Co., Ltd.) 2.0% by weight, 0.1 to 5% by weight of a dye, and a printed dye mixed to contain residual water were prepared.

No. Article number Color by design Color Recipe One R-1787 ① Navy N/Blue RSE 3.0% + Black TRF 0.5% + Red BLSF 0.5% ② Orange Orange ARW 2.0% + Yellow 10G 0.3% ③ Blue T/Blue SGh 1.8% + Yellow 10G 0.05% 2 R-1816 ① Navy N/Blue RSE 3.0% + Black TRF 0.5% + Red BLSF 0.5% ② R/Pink Pink B 1.5% + Yellow 10G 0.15% ③ Blue T/Blue SGh 1.8% + Yellow 10G 0.05% ④ Pink Pink B 0.5% ⑤ Yellow Yellow TA 1.0% + Yellow 10G 0.3% 3 R-1797 ① Dark Blue Blue TGSF 2.5% + T/Blue SGh 0.8% ② Blue T/Blue SGh 1.8% + Yellow 10G 0.05% ③ Yellow Yellow TA 1.0% + Yellow 10G 0.3% 4 R-1817 ① Dark Gray Black TRF 0.8% + AF 0.2% + Red BLSF 0.1% ② Gray Black TRF 0.3% + AF 0.08% + Red BLSF 0.04% ③ White Gray Black TRF 0.15% + AF 0.04% + Red BLSF 0.02% 5 R-1819 ① Black Black S 12% + NF-300 3.0 ② Gray Black TRF 1.0% + AF 0.2% + Red BLSF 0.15% 6 R-1818 ① Black Black S 12% + NF-300 3.0 ② Red Red SGS 1.5% + Yellow 10G 0.2% 7 R-1788 ① Black Black S 12% + NF-300 3.0 ② Gray Black TRF 1.0% + AF 0.2% + Red BLSF 0.15% ③ White Gray Black TRF 0.15% + AF 0.1% + Red BLSF 0.03% 8 R-1789 ① Black Black S 12% + NF-300 3.0 ② Gray Black TRF 1.0% + AF 0.2% + Red BLSF 0.15% 9 R-1786 ① Black Black S 12% + NF-300 3.0

In the case of “%” indicated in Table 1, it is O.W.f (on the weight of fiber), which is the weight percentage to fiber weight ratio. After processing the prepared PP/PET blended composite fibers (#1~8), they are printed by rotary printing using the prepared copper plate prepared in FIG. 2 according to the part number, respectively, and then printed. After drying for 90 seconds, the dried composite fiber was steamed by steaming at 140°C for 15 minutes. After steam steaming, water was washed for 20 minutes at a temperature of 90°C, dehydrated, and dried in a dryer at a temperature of 120°C for 90 seconds. After the drying was completed, a tenter process for adjusting the width at a temperature of 140° C. for 5 minutes was performed.

In this case, the water washing agent used in the water washing treatment was mixed with water containing 0.1 to 3 parts by weight of sodium hydrosulfite, 0.1 to 0.5 parts by weight of caustic soda, and 0.1 to 0.5 parts by weight of R/C.

<Lab for PP/PET composite material printing. Test>

1. Prescription for printing with consideration of material

In the case of PP/PET materials, unlike conventional PET printing, when the temperature of the heating is raised to 170~180℃, there is a problem that the PP material melts and becomes stiff.

In the case of heating in the printing process, there is a problem that not only color development, but also the fastness is also deteriorated when not sufficiently performed as a process for dyeing. In order to prevent this, a red color with a poor color fastness was prepared with a prescription as shown in Table 2 below, and a printing test was conducted in Lab.

NO Prescription One Red BS 2% + material MV-200 8% + metal ion blocker 1% + malic acid 0.3% 2 Red BLSF 2% + material MV-200 8% + metal ion blocker 1% + malic acid 0.3%

At this time, the heating conditions were the same for 15 min at 140°C. In addition, in order to establish a prescription, the laundry, daylight, friction, sweat, and water fastness tests were conducted, and as a result, the material tested with the printing method of the prescription with the Red BLSF of No. 2 in Table 2 was more excellent. Was confirmed. The results are shown in Table 3 below.

division Fading Pollution Acetate Cotton Nylon PET Acrylic Wool Laundry One 3 4 4 2-3 4 4-5 4 2 4 4 4-5 3 4 4-5 4-5 water One 4-5 3 2-3 2-3 3-4 3-4 3-4 2 4-5 3-4 4 3 4 4-5 4 sweat alkali One 4-5 2 2-3 1-2 3 3 2-3 2 4-5 4 4 3 4 4-5 4 acid One 4-5 2 2 1-2 2-3 3 2-3 2 4-5 3-4 4 3 4 4-5 4 division friction daylight key Wet One 2 One 3 2 4 2-3 3-4

As mentioned above, in the case of PP composite materials, unlike PET, it is not possible to impart sufficient temperature in the heat treatment process, so it was necessary to establish conditions for temperature and heat increase time. In consideration of going through a fixed-minute fixation, a printing agent with Red BSLF (No. 2 in Table 2) was applied. Test was conducted. In the test, we have Lab. The printing test (screen printing method), dryer (hot air method), and a steam heater were applied to test. The finished material was washed with water to ensure that there was no residual dye on the surface and then dried.

The printing test process sequence and conditions were tested in the order of printing --> drying (140℃) --> steaming (140℃, 5~20min) --> water washing --> drying (110℃). In order to establish the optimum conditions with the printed material according to the heating time, color development and color fastness analysis were performed, and color development measured K/S value through CCM measurement. , Friction, sweat, and water fastness were analyzed, and the results are shown in Tables 4 and 5 below.

As can be seen from the results of Tables 4 and 5, it was found that the longer the steaming time, the better the color development and fastness. As a result of this, in the case of the PP composite material, unlike PET, it was confirmed that the color development and fastness are excellent only when it is sufficiently heated at 140°C for a minimum of 15-20 minutes, and this Lab. Based on the test results, it was found that in the present invention, it is preferable to apply a 15 to 20 min steaming step.

division L a b C h CCM 5min 52.80 58.08 13.60 59.65 13.18 10min 52.87 58.14 13.94 59.79 13.48 15min 50.67 58.92 16.88 61.29 15.99 20min 50.65 59.45 17.07 61.85 16.02








K/S graph

division Fading Pollution Acetate Cotton Nylon PET Acrylic Wool Laundry 5min 4 3-4 4-5 2-3 3-4 4-5 4 10min 4 3-4 4-5 2-3 4 4-5 4-5 15min 4 4 4-5 2-3 4 4-5 4-5 20min 4 4 4-5 2-3 4 4-5 4 water 5min 4-5 3 4 3 3-4 4 3-4 10min 4-5 3-4 4 3 4 4-5 3-4 15min 4-5 3-4 4-5 3 4 4 3-4 20min 4-5 3-4 4 3 4 4 4 sweat alkali 5min 4-5 3 3-4 2-3 3­4 4 3-4 10min 4-5 3-4 4 3 4 4-5 3-4 15min 4-5 3-4 4 2-3 4 4 4 20min 4-5 3-4 4 2-3 4 4 4 acid 5min 4-5 3-4 3-4 2-3 3-4 4 3-4 10min 4-5 3-4 4 3 4 4-5 3-4 15min 4-5 3-4 4 2-3 3-4 4 4 20min 4-5 3-4 4 3 4 4 4 division friction daylight key Wet 5min 3-4 2-3 3 10min 3-4 2-3 3-4 15min 3-4 2-3 3-4 20min 3-4 2 3-4

According to the present invention, the burnout step has the technical feature that it comprises the following steps.

(A) After the refining step is completed, refining the circular knitted fabric at 100~110°C, dehydrating it, setting it in a temperature range of 100~120°C in the tender, and then low-temperature high-pressure dispersion powder 20~30 with respect to 100 parts by weight of solvent in the printing machine. Step of using a dye mixed with parts by weight;

(B) drying at 120 ~ 130 ℃ in the dryer after the blade step;

(C) after drying, distilling at 140° C. for 8 to 10 minutes;

(D) after the steaming step, using a mixture of a reducing agent and caustic soda in a weight ratio of 1:1, washing with water at a temperature of 60° C. and then dehydrating;

(E) After dehydration, drying in a dryer at a temperature of 100°C for 30 minutes, followed by a tenter process to adjust the width for 5 minutes in a temperature range of 140°C or less.

According to the present invention, the material preparation in step (a) is 1 to 3 parts by weight of a thickener, 0.1 to 1 part by weight of a metal ion blocker, and 0.1 to 1 part by weight of malic acid.

According to the present invention, the binder of the step (a) is characterized in that any one of NF-300, AR-901 as a cationic binder.

According to the present invention, the thickener is characterized in that it is a resin (Resin) thickener or an acrylamide (Acrylamide) thickener.

According to the present invention, in step (d), water washing may include 1 to 2 parts by weight of solvent, 0.1 to 3 parts by weight of sodium hydroxide, 0.1 to 0.5 parts by weight of caustic soda, and 0.1 to 0.5 parts by weight of R/C. It is characterized by using a detergent.

According to the present invention, the flame-retardant polypropylene fiber is a 10 wt% fluorescence master batch (Polypropylene Polymer) with a MI value of 34, a 20 wt% Cachion diaphragm polymer master batch or a 30 wt% Al2O3 water-soluble PET master batch Characterized in that 1 to 2% by weight of dosing (Dosing) is performed by spinning through a spinneret and SDY 50d/36f fine fiber is used.

According to the present invention, the flame-retardant polypropylene fiber and polyethylene terephthalate blend composite fiber are PP DTY 50d/36f 89% by weight, Span 20D 11% by weight; 33% by weight of PP DTY 50d/36f, 22% by weight of PP 50d/36f (Tuck), 33% by weight of antibacterial PET 50d/36f, 12% by weight of Span 20D; 33% by weight of PP DTY 50d/36f, 22% by weight of PP 50d/36f (Tuck), 33% by weight of PET 50d/36f, 12% by weight of Span 20D; 33% by weight of PP DTY 50d/36f, 22% by weight of PP 50d/36f (Tuck), 33% by weight of PET 50d/36f, 12% by weight of Span 20D; 28% by weight of PP DTY 75d/36f, 32% by weight of PET 50d/36f (Tuck), 32% by weight of PET 75d/36f, 8% by weight of Span 20D; PP DTY 75d/36f 35% by weight, PET 50d/36f (Tuck) 22% by weight, PET 50d/36f 34% by weight, Span 20D 9% by weight; PP DTY 75d/36f 35% by weight, PET 50d/36f (Tuck) 22% by weight, lecture PET 75d/36f (34)% by weight, Span 20D 9% by weight; PP DTY 75d/36f 35% by weight, PET 50/36 (Tuck) 22% by weight, antibacterial PET (ATB) 75d/72f 34% by weight, Span 20D 9% by weight It has that characteristic.

By using the printed fabric of the present invention disclosed above, it is possible to provide a warm lightweight lightweight guard. Preferably, a silicone resin obtained by mixing 10 to 15 parts by weight of a curing agent against 100 parts by weight of silicone on one side of the printed fiber is coated on release paper using a silk screen, and then primary at 170 to 210°C for 15 seconds. After aging, apply a second silicone coating on the top surface using a silk screen, and then aging for 15 seconds at a temperature condition of 180 to 190°C, then attach a printing fabric and heat-press it using a roller press to coat the silicone Then, after separating the coated fabric from the release paper, it can be aged at a temperature of 170 to 210°C to provide a heat-resistant rash guard using a silicone-coated fabric.

On the other hand, when explaining by exemplifying various experimental forms carried out to complete the present invention, as follows. The experimental form described below is an exemplary experimental form for explaining the present invention, and the present invention is not limited to the experimental content, and is for explaining the present invention. It can be modified as long as it does not deviate from the composition.

In order to complete the present invention, the inventors to confirm the dispersibility of the dye, high pressure high temperature dispersion group (Oyoung Industry): Yellow GFS, Red BS, Blue 2BLN; Low-temperature dispersion group (Hansong Industries): Yellow HA-WF, Red HAR, and Blue HA were selected to test the dispersibility by analyzing the time taken for the salt solution to pass through the filter paper and the state of the residue.

The results are shown in Table 6 below, and the dispersibility grades are shown in Table 7 below.

Table 6 is a dispersibility test result, Table 7 is a dispersibility rating result table.

division Low temperature(s) High temperature(s) RED BS 21 600↑ RED HA-R 200% 16 42 YELLOW GFS 32 600↑ YELLOW HA-WF 100% 20 16 BLUE 2BLN 600↑ 600↑ BLUE HA-G 200% 27 315↑

division Time taken for filtration ( Seconds:s ) Residual filter paper Rating 5 0s ~ 24s Excellent dispersibility 4 25s ~ 49s 3 50s ~ 74s 2 75s ~ 120s One 120s or more Poor dispersibility

As a result of Table 6, it was confirmed that the low-temperature dispersion group was excellent in dispersibility regardless of temperature.

Table 8 below shows a dispersible test filter picture.

In order to complete the present invention, two types of thickeners, which were important when mixing the material in printing, were analyzed using TGA, GC-MS, and FT-IR for optimum material mixing considering compatibility and compatibility, and the results are shown in FIG. 3. As shown. As a result of judging by referring to the graph shown in FIG. 3, it was found that it is best to use a resin-based thickener and an acrylamide-based thickener.

In addition, in the present invention, a preliminary experiment was conducted to apply the printing process of various PP composite materials, and the experimental methods and results are shown in Tables 9 to 12 below.

Table 8 illustrates the printing process conditions, Table 9 shows a picture of the printed fabric according to the printing conditions, Table 10 illustrates the burn-out process of the pre-printed fabric, Table 11 before and after burnout It shows a photograph comparing the fabrics later.

order Application process Contents One Printing Use of low temperature dye group
The maximum number of carpenters (more than 155) 2 dry 120~130℃ drying temperature 3 Augmentation 140℃×10min 4 Flush Reducing agent 1%, caustic soda 1%
60℃ water washing

According to the results through the preliminary printing test of the PP/PET material, the difficulties were checked through the printing test for each color with the above-designed process.

The dyes used at this time were the six types of dyes analyzed above, and the test conditions were also conducted under the designed conditions.

In the case of the printed sample, as shown in Table 10, it was found that the color intensity of the sample printed with the low-temperature dispersion dye was high as applied in the low-temperature process.

order Application process Contents One Burn-out Span Burn-out 2 dry 120~130℃ drying temperature 3 Augmentation 140℃×8~10min 4 Flush Reducing agent 1%, caustic soda 1%
60℃ water washing 5 Tenter 130℃ or less

In addition, for various design applications, six fabric samples were selected by applying a regular printing process, and after printing the six fabrics, the burn-out process was applied to see the fabric before and after burnout. , The results are shown in Table 12.

In the case of the burn-out process, in the same manner as the printing process, all processes were managed to be performed between 100 and 130°C.

It was tested through two times. During the first test, the fabric was stiff due to the failure of temperature control in the Tenter process. Therefore, during the second test, the Tenter process was performed at a temperature of 130°C or lower, and as a result, burn- It was possible to secure the same touch-sensitive material as before.

Printing method of the flame-retardant polypropylene fiber or the flame-retardant polypropylene fiber and the polyethylene terephthalate blend composite fiber provided in accordance with the present invention as described above, and the heat-resistant lightweight rash guard using the flame-retardant fiber PP or flame-retardant PP/PET ( In the case of the printing process of synthetic fiber such as NYLON), there is difficulty in the high-temperature printing process of PET (NYLON) by the low-temperature printing process of PP, but it is possible to overcome this temperature difference and enable printing, and also various design implementations and products It can be seen that there is an advantage that can be used for various purposes.

In addition, by applying PP material, it has the advantages of light weight, quick-drying sweat, and warmth while maintaining some buoyancy, so it can be applied to Leshguard, a fashionable underwater sportswear that secures safety as well as various other sportswear. It was also found that there is an advantage that can be applied to the furnace.

Claims (11)

Preparing a flame-retardant polypropylene fiber or a flame-retardant polypropylene fiber and a polyethylene terephthalate-blended composite fiber, and preparing the circular knitted fabric into a double layer structure using the double-sided circular knitting machine;
Printing the circular knitted fabric using a low-temperature component salt material; And
The printing method of the printing polypropylene fiber or a chlorinated polypropylene fiber and a polyethylene terephthalate blend composite fiber comprising a burn-out step of burning out the printing fabric is completed.
According to claim 1,
The printing step is a printing method of a polypropylene fiber or a flame-retardant polypropylene fiber and a polyethylene terephthalate blend composite fiber comprising the following steps.
(a) After pre-processing the circular knitted fabric, rotary printing is performed with a printing dye containing 0.1 to 5% by weight of the low-temperature ingredient salt, 1 to 3% by weight of the paste preparation, 0.1 to 3% by weight of the binder and the remaining amount of solvent. Printing steps;
(b) after printing, drying in a dryer at 120-130° C. for 90±5 seconds;
(c) steam-heating the dried composite fiber at a temperature condition of 140° C. for 10 minutes;
(d) after steam steaming, washing with water for 5-20 minutes at a temperature condition of 90±5° C., followed by dehydration;
(e) After dehydration, drying for 90±5 seconds at a temperature of 120° C. or less.
According to claim 1,
The burnout step is a printing method of a polypropylene fiber or a flame-retardant polypropylene fiber and a polyethylene terephthalate blended composite fiber, characterized in that comprises the following steps.
(A) After the refining step is completed, refining the circular knitted fabric at 100~110°C, dehydrating it, setting it in a temperature range of 100~120°C in the tender, and then low-temperature high-pressure dispersion powder 20~30 in 100 parts by weight of solvent in the printing Step of using a dye mixed with parts by weight;
(B) drying at 120 ~ 130 ℃ in the dryer after the blade step;
(C) after drying, distilling at 140° C. for 8 to 10 minutes;
(D) after the steaming step, using a mixture of a reducing agent and caustic soda in a weight ratio of 1:1, washing with water at a temperature of 60° C. and then dehydrating;
(E) After dehydration, drying in a dryer at a temperature of 100°C for 30 minutes, followed by a tenter process for adjusting the width for 5 minutes in a temperature range of 140°C or less.
According to claim 2,
The dye preparation of step (a) is 1 to 3 parts by weight of a thickener, 0.1 to 1 parts by weight of a metal ion blocker, and 0.1 to 1 parts by weight of malic acid. And polyethylene terephthalate blend composite fiber printing method.
According to claim 2,
The binder of the step (a) is a method of printing a chlorinated polypropylene fiber or chlorinated polypropylene fiber and a polyethylene terephthalate blended composite fiber, characterized in that it is one of NF-300 and AR-901 as a cationic binder.
The method of claim 4,
The thickener is a resin (Resin) thickener or an acrylamide (Acrylamide) thickener, characterized in that the printing method of the printing of a polypropylene fiber or a chlorinated polypropylene fiber and a polyethylene terephthalate blend composite fiber.
According to claim 2,
In step (d), washing with water is 1 to 2 parts by weight of solvent, 0.1 to 3 parts by weight of sodium hydroxide, 0.1 to 0.5 parts by weight of caustic soda, and 0.1 to 0.5 parts by weight of R/C agent. A method of printing a sintered polypropylene fiber or a sintered polypropylene fiber and a polyethylene terephthalate blended composite fiber.
According to claim 1,
The flame-retardant polypropylene fiber is 1 to 2 weight of 10wt% fluorescent masterbatch, 20wt% Cachion diaphragm polymer masterbatch, or 30wt% Al2O3 water soluble PET masterbatch in polypropylene polymer having a MI value of 34. % A method of printing polyvinyl chloride or chlorinated polypropylene fibers and polyethylene terephthalate blended composite fibers, characterized by using fine fibers of SDY 50d/36f spun by spinning through spinneret by dosing.
According to claim 1,
The sintered polypropylene fiber and polyethylene terephthalate blend composite fiber are PP DTY 50d/36f 89% by weight, Span 20D 11% by weight; 33% by weight of PP DTY 50d/36f, 22% by weight of PP 50d/36f (Tuck), 33% by weight of antibacterial PET 50d/36f, 12% by weight of Span 20D; 33% by weight of PP DTY 50d/36f, 22% by weight of PP 50d/36f (Tuck), 33% by weight of PET 50d/36f, 12% by weight of Span 20D; 33% by weight of PP DTY 50d/36f, 22% by weight of PP 50d/36f (Tuck), 33% by weight of PET 50d/36f, 12% by weight of Span 20D; 28% by weight of PP DTY 75d/36f, 32% by weight of PET 50d/36f (Tuck), 32% by weight of PET 75d/36f, 8% by weight of Span 20D; 35% by weight of PP DTY 75d/36f, 22% by weight of PET 50d/36f (Tuck), 34% by weight of PET 50d/36f, 9% by weight of Span 20D; PP DTY 75d/36f 35% by weight, PET 50d/36f (Tuck) 22% by weight, lecture PET 75d/36f (34)% by weight, Span 20D 9% by weight; PP DTY 75d/36f 35% by weight, PET 50/36 (Tuck) 22% by weight, antibacterial PET (ATB) 75d/72f 34% by weight, Span 20D 9% by weight of composite fiber A method of printing a sintered polypropylene fiber or a sintered polypropylene fiber and a polyethylene terephthalate blended composite fiber.
Claims 1 to 9 of the insulating lightweight rash guard using a printing fiber provided by the printing method of any one of claims.
The method of claim 10,
A silicone resin obtained by mixing 10-15 parts by weight of a curing agent against 100 parts by weight of silicone on one side of the printed fiber is coated on release paper using a silk screen, and then first aged at 170-210°C for 15 seconds, On the top surface, a second silicone coating is performed using a silk screen, followed by second aging at a temperature condition of 180 to 190°C for 15 seconds, and then a printing fabric is attached and thermally compressed using a roller press to coat the silicone. Heat-resistant lightweight guard guard characterized by using a silicone-coated fabric that separates the old fabric from the release paper and then matures at a temperature of 170~210℃.

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