KR100997501B1 - Method for producing a heat-retaining fiber - Google Patents

Abstract

The present invention relates to a method for producing a thermally insulating fiber, the method of imparting heat storage and heat generation function to post-processed foam paper after a normal dyeing process: 10 ~ 20wt% PCM having heat storage and heat generation function and poly having cold resistance A first step of forming a first coating agent by mixing the urethane resin 80 ~ 90wt%; A second step of applying a first coating agent obtained in the first step by applying a wet coating on a bubble paper to harden it; A third step of forming a second coating agent by mixing 1-5 wt% of the carbon-based nanomaterial having an antibacterial function with 95-99 wt% of the dry hydrophilic non-porous polyurethane resin; And a fourth step of applying the second coating agent obtained by the third step to dry coating on the bubble paper and applying it to harden.

Accordingly, the present invention, the simultaneous effect of the heat storage thermal insulation and moisture permeability, the antibacterial properties are improved, there is an effect of maintaining the lasting effect of far-infrared radiation and improve the washing durability.

PCM (Phase Change Materials), CACO, Carbon Nano Materials, Coating, Wet Coating, Dry Coating

Description

Method for producing a thermal fiber [Method for producing a heat-retaining fiber}

The present invention relates to a method for producing a thermal fiber, more specifically, the simultaneous effect of heat storage thermal insulation and moisture-permeable waterproof, antimicrobial properties are improved, maintaining the continuous effect of far-infrared radiation and washing durability is improved manufacturing method It is about.

In general, research on the thermal insulation of textile products and research for technology development has been carried out for quite some time. In general, as a method of improving the thermal insulation of textile products, the thermal insulation effect by heat insulation has been mainly considered, but recently developed heat storage and thermal insulation materials can be said to be a change in the concept of conventional thermal processing. Thermal storage and warmth proofing is a combination of research on ceramics and far-infrared based on conventional synthetic fiber manufacturing technology. Yarn manufacturers and textile processing companies have been fighting for far-infrared rays in Japan. We have developed and produced heat storage thermal insulation products.

Such processed products are produced as a commodity of the same use by adding heat storage insulation function to the conventional synthetic fiber products, and is said to have the effect of promoting health. The purpose of providing thermal insulation to clothing as a fiber aggregate is to obtain a material that is light and thin and, in some cases, shorter and smaller in thermal insulation, and has a combination of several factors in the unit thickness of the fiber assembly. It can improve the heat retention.

Although the definition of heat storage / insulating fiber is somewhat unclear, it is known that the following three functions should be combined. It effectively absorbs light and heat from the outside, that is, electromagnetic waves (mainly sunlight), and converts them into long-wave electromagnetic waves (infrared rays), and reflects the heating rays (ultraviolet rays) emitted from the human body or converts wavelengths. Similar to the principle of hygroscopic heating of the wool and the function of reflex, there is a function to warm the human body by heating the fibers themselves.

According to "Thermal Insulating Textile Fabric and Its Manufacturing Method" of Japanese Patent No. 08-188970, most of the patents for the last ten years have been centered on the incorporation of ceramics in the yarn state, and PCM has been the main material. On the other hand, it is expected to secure differentiated patent rights by using PCM mainly for coating technology and applying it to post-processing. In addition, in the extreme climate region of -10 ℃ ~ -40 ℃, since hygiene problems are more likely to occur in tropical or subtropical regions, environmentally friendly and human-friendly antibacterial materials are essential. The company intends to introduce completely new multifunctional antibacterial and antibacterial preparations. In addition, it is necessary to secure patent rights since only conventional antimicrobial agents were used.

Accordingly, the present invention is to fundamentally solve the conventional problems as described above, the thermal effect of the thermal insulation and the moisture permeable waterproof expression, antimicrobial properties are improved, maintaining the lasting effect of far-infrared radiation and washing durability is improved laundry durability The purpose of the present invention is to provide a method.

In order to achieve the above object, the present invention provides a heat storage and heat generation function in a post-processing manner to a bubble paper subjected to a conventional dyeing process: 10-20 wt% PCM having heat storage and heat generation functions and a polyurethane resin having cold resistance A first step of forming a first coating agent by mixing about 90 wt%; A second step of applying a first coating agent obtained in the first step by applying a wet coating on a bubble paper to harden it; A third step of forming a second coating agent by mixing 1-5 wt% of the carbon-based nanomaterial having an antibacterial function with 95-99 wt% of the dry hydrophilic non-porous polyurethane resin; And a fourth step of applying the second coating agent obtained by the third step to dry coating on the bubble paper and applying it to harden.

At this time, the carbon-based nanomaterial of the present invention is characterized in that the carbon component is formed of CACO formed of particles of 100nm size consisting of 65 ± 2%, oxygen component 25 ± 2%.

Meanwhile, the terms or words used in the present specification and claims are not to be construed as being limited to the ordinary or dictionary meanings, and the inventors have the concept of terms in order to explain their own invention in the best way. On the basis of the principle that can be appropriately defined should be interpreted as meanings and concepts corresponding to the technical spirit of the present invention. Therefore, the embodiments described in the present specification and the configuration shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all of the technical ideas of the present invention, and various alternatives may be substituted at the time of the present application. It should be understood that there may be equivalents and variations.

As described in the above configuration and operation, the present invention expresses the simultaneous effect of heat storage thermal insulation and moisture permeability, improves antimicrobial properties, provides the effect of maintaining the lasting effect of far-infrared radiation and improving laundry durability.

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

1 is a block diagram of a manufacturing method of the fiber according to the present invention, Figure 2 is a schematic diagram showing an enlarged insulating fiber of the manufacturing method of the fiber according to the present invention.

The present invention relates to the manufacturing method of thermal insulation fibers to express the simultaneous effect of heat storage thermal insulation and moisture permeability, to improve the antimicrobial properties, to maintain the continuous effect of far-infrared radiation and to improve the durability of the laundry, the first step (S10), the second The manufacturing method of the fiber is made through the step (S20), the third step (S30), the fourth step (S40).

According to the present invention, the first step (S10) to form a first coating agent 10 by mixing 10 ~ 20wt% PCM having a heat storage / heat generation function and 80 ~ 90wt% polyurethane resin having a cold resistance. The PCM (Phase Change Materials) is called a phase change material or latent heat storage material, and endothermic or heat dissipation is performed in the process of phase change to a gas, liquid, or solid state. Applications of PCM are diversely used in daily necessities such as shoes and kitchenware, high-tech industries such as automobiles, communication devices, and medical devices, environmentally friendly energy fields such as solar heat, and heat storage and cold storage fields using midnight power. However, when PCM is used as an energy storage means that changes phase at a certain temperature, it is difficult to maintain a shape when it becomes a liquid in the process of changing between a solid and a liquid. Therefore, in consideration of the ease of modularization or the increase in heat transfer area, It is advantageous to microcapsule. At this time, since the capsule may be broken at 160 ° C. or higher, attention is required for temperature control in the field application, and the first coating agent 10 is mixed with 10 to 20 wt% of PCM and 80 to 90 wt% of polyurethane resin having cold resistance. To form.

In addition, according to the present invention, in the second step S20, the first coating agent 10 obtained by the first step S10 is applied by the wet coating on the bubble paper 1 to be cured. The bubble paper 1 is not limited to fibers or fabrics, and refers to a state that has been subjected to conventional dyeing processes such as dough, cutting, CPB refining, continuous washing, dyeing, P / set (tenta processing), and water repellent, and FIG. 2. As shown in FIG. 1, the first coating agent 10 mixed with 10-20 wt% of PCM and 80-90 wt% of polyurethane resin having cold resistance is applied to the bubble paper 1 and cured. It is absorbed in and has the form of laminated coating. Wet coating is suitable to use knife over roll method.

In addition, according to the present invention, the third step (S30) forms a second coating agent 30 by mixing 1 ~ 5wt% of the carbon-based nanomaterials having antibacterial function and 95 ~ 99wt% of the dry hydrophilic non-porous polyurethane resin. . Here, the carbon-based nanomaterials were first developed by KINGPRIZE as CACO formed of particles having a size of 100 nm consisting of 65 ± 2% of carbon and 25 ± 2% of oxygen, and were temporarily defined as CACO. The second coating agent 30 is formed by mixing CACO 1 to 5 wt% with the antibacterial function and 95 to 99 wt% of the dry hydrophilic non-porous polyurethane resin.

In addition, according to the present invention, in the fourth step S40, the second coating agent 30 obtained by the third step S30 is dry-coated by applying the dry coating on the bubble paper 1 again to cure. As shown in FIG. 2, the second coating agent 30 is applied onto the bubble paper 1 to be cured by curing, thereby being absorbed onto the bubble paper 1 and coated on the first coating 20. This laminated form is suitable for dry coatings using knife over roll or comma methods.

Thereafter, although not shown in the drawing, the product is finished through dry processing and tenta processing, in particular, it is necessary to maintain uniformity of drying with accurate temperature control. The hot air, which is precisely temperature controlled through the upper and lower nozzles, transmits heat uniformly to the fabric through the precisely controlled fan, and the flame of the burner can accurately control the temperature of the hot air through the heat supply pipe. Of course, it is good to add a device for recovering the remaining heat after drying the fabric using the waste heat recovery system.

The fabric produced in this manner has a form in which a layer of functional layers are stacked on the bubble paper 1.

[Experimental Example]

First, using a 100% nylon (Nylon) fabric was subjected to wet coating by two cycles of CIRE, followed by drying (160 ℃ × 1.5 minutes), and then dry coating to dry again (160 ℃ × 1.5 minutes) was tested. At this time, the wet conditions were 80 wt% cold-resistant polyurethane and 20 wt% PCM for wet coating, and 1,5,10 wt% for hydrocoated non-porous polyurethane and dry coating.

Comparing the addition of CACO 1,5,10wt% in Table 1, the weight, thickness, adhesion, and compatibility did not show a significant effect, but it can be seen that there is a significant difference in water pressure and moisture permeability, in particular, CACO Addition of 1-5 wt% was able to obtain great effects of water pressure and moisture permeability. The conditions for the comfort of clothing are moisture permeability and warmth. According to the present invention, the water vapor transmission rate (g / m 2 .day) can be more than 90% of the current world's highest level (6000 ~ 8000), and the thermal insulation can be maintained at 2 ~ 3 ℃ higher than the external temperature in the current fabric state. And water pressure is related to laundry durability.

In Table 2 and Table 3, the CACO, which is a carbon series, has a carbon ratio about twice that of the carbon in the unadded sample.

In Table 4, the carbon-based CACO showed far-infrared emissivity and radiation energy values higher than those of the reference sample. When such far infrared rays enter the human body, the temperature of blood vessels under the skin is raised to expand microvascular vessels, promote blood circulation, enhance metabolism, increase tissue regeneration, and maintain healthy stamina. You get a variety of effects that make it treatable.

Table 5 shows that the calorific value and endothermic amount of the cold-resistant processed sample increased compared to the dual-coated fabric using general resin. It can be seen that the cold-resistant fabric is a material suitable for heat storage / heat processing, and the sample with the CACO shows a lower calorific value than the cold-resistant processed sample without. This is because the nanomaterial absorbs latent heat and the calorific value decreases, which is why the endothermic amount is higher than that of cold-resistant processed samples.

Table 6 shows the reproducibility graph of the cold-resistant processed fabric without the addition of CACO and the reproducibility graph of the cold-resistant processed fabric with the addition of CACO. When CACO absorbs latent heat and performs 3 Cycling, it can be seen that the graph repeats constantly. It can be seen that the nanomaterials have a significant effect on maintaining a stable thermal insulation.

As a result, the simultaneous effect of heat storage insulation and moisture permeability is expressed, antimicrobial properties are improved, and the effect of maintaining the continuous effect of far-infrared radiation and improving laundry durability.

It is apparent to those skilled in the art that the present invention is not limited to the described embodiments, and that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to belong to the claims of the present invention.

1 is a block diagram of a method for producing a fiber according to the present invention,

Figure 2 is a schematic diagram showing an enlarged insulating fiber of the method for producing a fiber according to the present invention.

Explanation of symbols on the main parts of the drawings

1: bubble paper 10: first coating agent

30: second coating agent S10: the first step

S20: second stage S30: third stage

S40: fourth stage

Claims (2)

In the method of imparting heat storage and heat generation functions to a post-processing method on a bubble paper 1 subjected to a conventional dyeing process: A first step (S10) of forming a first coating agent (10) by mixing 10-20 wt% of PCM having a heat storage / heating function and 80-90 wt% of a polyurethane resin having cold resistance; A second step (S20) of applying a hard coating by coating the first coating agent (10) obtained by the first step (S10) on the bubble paper (1); A third step (S30) of forming a second coating agent 30 by mixing 1-5 wt% of the carbon-based nanomaterial having an antibacterial function and 95-99 wt% of the dry hydrophilic non-porous polyurethane resin; And The second coating agent 30 obtained by the third step (S30) is a dry coating on the bubble paper (1) by applying a fourth step (S40) to harden by applying again; Manufacturing method. The method of claim 1, The carbon-based nanomaterial is a method of producing a thermal fiber, characterized in that the carbon component is formed of CACO formed of particles of 100nm size consisting of 65 ± 2%, oxygen component 25 ± 2%.

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