KR101206492B1 - A manufacturing process of fabrics with good performance of bulkiness and isolation, and fabrics produced thereby - Google Patents

Abstract

The present invention relates to a fabric for blocking harmful microorganisms and ultra-fine by-products resulting therefrom, the fabric is a high-density microporous fabric having an average pore size of less than 10㎛, such fabric has a size of less than 10㎛ recently reported Not only can it effectively block allergens, but it is also comfortable to wear and does not generate static electricity, so it can be very useful for various allergy prevention and house dust mite blocking products such as bed cover and baby clothing.

Description

A manufacturing process of fabrics with good performance of bulkiness and isolation, and fabrics produced thereby}

The present invention relates to a fabrication method and a fabric of the fabric having excellent bulkiness and barrier properties, and more particularly, while maintaining a pore size of less than 10㎛ even after washing several times with a high-density fabric for cover such as bedding, The present invention relates to a fabric manufacturing method and a fabric having a bulky property, which is a property necessary for the Kava of beddings, and excellent bulky and blocking property capable of blocking harmful microorganisms and ultra-fine by-products derived therefrom.

Rapid modernization of society as a whole has provided a lot of convenience to human beings, but it has caused a big problem of environmental pollution. As a result, the life patterns of a number of microorganisms on the earth that share the same life with humans have also changed, and recently, microorganisms that are very difficult to remove with conventional insecticides have emerged.

In addition, due to the development of apartments, the residential culture has been enlarged, grouped and mainly made up of indoor living, and it has been found that many of the overlooked micromaterials are the causative agents of various diseases. It is known that the main cause is animal hair or house dust mite. As the microorganisms that cause allergies by parasitic in the environment in which humans work, the most common ones are ticks, especially house dust mites having a size of about 100 to 300 μm, and the size of about 40 μm or less emitted from house dust mites. Eggplants are also known to be the main factor of allergens, the protein produced by the decomposition of feces and carcasses, and other allergens are known as animal hair such as cat hair, goose down, duck down, cockroach, cockroach excretion, etc. .

In this context, Platts-Mills TAE et al., "Dust mite allergens and asthma, Report of a Second International Workshop" (J. of Allergy and Clin. Immunology, Vol. 37, pp. 1046-1050, 1992) Group I Mite Allergen has proven that most of it is related to relatively large fecal particles with a diameter of 10 to 40 µm. ”Hong Chun-su's" house dust mite and clinical allergy "(Allergy, Vol. 11, No. 3). , pp. 297-308, 1991), "House dust mite has been identified as a global problem for allergic diseases and is the most important cause of respiratory allergy in Korea. House dust mite is a common cause of allergic diseases in the general population. It's not an exaggeration to say that there is nothing else. "

As these facts become known, countermeasures have been taken from various angles. The most effective method currently known as a countermeasure against such an allergic disease is to use a woven fabric having an average pore size of 10 μm or less by using a microfiber having a single yarn fineness of 0.5 denier or less (Japanese Patent Laid-Open No. 11-217745). However, in the case of such a fabric, there are some problems due to the general household goods due to the following problems. Typically, conventional high-density fabrics that focus only on reducing the size of the pores, when used in daily necessities such as bedding, have poor washing durability and rapidly increase the size of the pores after washing. This is very short. In addition, products that focus only on the role of the barrier membrane are woven fabrics made of natural fibers and then subjected to non-breathable coating treatments such as urethane or vinyl on the surface, which prevents the permeation of moisture and air. There is a disadvantage of being unsuitable as bedding due to the extremely low fit to the skin, adversely affecting the skin, and likewise, the durability of the laundry is poor, and the size of the voids after washing is rapidly increased.

In addition, recent studies have found that conventional fabrics with an average pore size of 10 μm do not effectively block allergens. For example, John W. Vaughan et al. ("Evaluation of materials used for bedding encasement: Effect of pore size in blocking cat and dust mite allergen" (J. of Allergy and Clin. Immunology, part I, No. 103 No. 2, pp. 227 ~ 231, February 1999)) in the "Der fI and Der In order to block house dust mite allergens such as pI below the detection criterion, a fabric having a pore size of less than 10 μm is required, and a fabric having an average pore size of less than 6 μm blocks allergens generated from cat hair. ” have.

In addition, although the allergen barrier fabric shown in Japanese Patent Application Laid-Open No. 11-217745 has a pore size of 4 to 10 μm, the fabric is inferior in applicability to the body in comparison with natural fabrics, and washed five times. The pore becomes about 30% (up to 12.5 μm), which not only can not substantially block allergens that are 10 μm or less in size, but also ducks, which are examples of internal fillings used in products such as bedding. Hair, goose down, etc. are out of the new allergens, or appearance is not good.

In addition, in order to solve the above problems, the Republic of Korea Patent Registration No. 365188, 565368, etc., to improve the durability of the laundry, has also proposed a high-density fabric processing method through the processing conditions of the specific temperature and pressure. However, in the case of the fabric made of such a synthetic fiber microfiber, there is a problem such as lack of bulkiness in use, less fit to the body skin, and use of some of the internal fillers, such as duck down, cotton, fiber through the air gap during use It can be confirmed that there are inadequate aspects.

It is an object of the present invention to improve the bulkiness and barrier properties listed above to block harmful microorganisms and micro by-products caused thereafter even after several washings, and to produce a fabric having excellent bulkiness and barrier property with good fit to the body, and It is in providing the fabric.

According to the present invention to achieve the above object, in a high-density microporous fabric having an average pore size of 10 μm or less using microfiber, synthetic fiber split yarn made of polyester, polyamide, or a mixture thereof, the synthesis Fiber islands or the synthetic fiber microfiber; And cotton fibers; Manufacture of fabrics having excellent bulkiness and barrier properties, characterized in that the fabric produced by using at least one fiber selected from among them as warp and weft yarns is processed under a roller pressure of 100 kg or less and a fabric feed rate of 50 m / min or more. Methods and fabrics are provided

As described above, the fabric of the present invention adopts specific shire processing conditions, thereby improving bulkiness and blocking performance, effectively blocking harmful microorganisms and micro by-products caused thereafter even after several washings, and at the same time, a bee having a good fit to the body. Providing a fabric and a method of producing excellent fabrics and barrier properties, and improved the problems with existing products, can be applied to a variety of allergic prevention, house dust mite blocking products, such as bed cover, baby clothing.

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

Existing method (Korean Patent Registration No. 565368) processed the sheet with high roller pressure of 10 ~ 50ton while moving the fabric feed speed to 10 ~ 100m / min to increase the durability of washing. Compressed yarns are compressed so that bulky performance is impaired. After several washings, the properties of the stiff yarns cause the voids to become larger than a few tens of micrometers in specific areas of the fabric. By-products or carcass decomposition products of the fillings and ticks come out, there is a problem that the blocking effect for the purpose of employing a high-density fabric is halved. Therefore, it is not possible to effectively block allergens due to such a problem, and therefore, it is not suitable for use as an allergy prevention bedding cover, and this phenomenon occurs because of the high roller pressure of several tens of tons during the fabric processing. One of the important reasons is that the physical properties of the yarn constituting the damage.

Fabrics excellent in bulkiness and barrier properties according to the present invention is a synthetic fiber split yarn made of polyester, polyamide, or a mixture thereof, the synthetic fiber island yarn or the synthetic fiber microfiber; And cotton fibers; Fabrics prepared using at least one fiber selected from among warp yarns and weft yarns can be produced by shire processing under a pressure condition of 100 kg or less and a fabric feed rate of 50 m / min or more.

 The single yarn fineness of the synthetic fiber microfiber for producing a fabric suitable for achieving the object according to the present invention is preferably 0.5 denier or less (in the case of a composite split yarn, single yarn fineness after dividing), more preferably 0.3 denier or less. Do.

The fabric of the present invention is produced by carrying out conventional post-processing such as aging, rinsing, refining, dyeing, softening and antistatic processing after weaving, and then further performing a Cire process. The above-mentioned processing may be performed at a temperature range in which the fabric used is not damaged, for example, 200 ° C. or less for cotton and about 135 ° C. or less for polyester or nylon, and the present invention specifies a processing temperature. However, the roller temperature of normal temperature to 200 degreeC, More preferably, 60-135 degreeC is suitable. The feed rate of the fabric was set in such a way that the bulkiness and the barrier property were fully exhibited while considering the economy, productivity, roller temperature, and the material of the fabric, and more than 50 m / min, more preferably 50 to 150 m / min. Speed is preferred. The pressure condition of the roller is set to a range to sufficiently exhibit the bulkiness and barrier properties of the fabric, the pressure of 100kg or less, more preferably 10 to 60kg is preferred. In addition, another feature of the present invention is to proceed with the role of the upper and lower rollers in consideration of the temperature and pressure of the roller consisting of the upper and lower, the surface area, the feed rate, etc., the upper roller to control the processing temperature , The lower roller was found to minimize the deformation of the fabric when set to control the pressure. In addition, the interval between the top and bottom rollers need to be adjusted according to the type of fabric, but it is most preferable to prevent the deformation of the fabric when proceeding to keep below 2mm.

In the above, when the feed speed of the fabric during sheet processing is less than 50 m / min, the effect of reducing the size of the voids can be obtained, but there is a problem that the productivity is disadvantageous economically, for example, too high, such as 200 m / min or more If there is a problem that the fabric is rigid, there is also a problem in terms of the bulkiness associated with the touch and the barrier properties after washing of the final product. When the pressure of the roller exceeds 100kg, the feel of the product is hardly changed, and if the pressure is too low, for example, less than 5kg, there is a disadvantage in maintaining the pore size of the product.

Such processing is particularly important with regard to the bulkiness and barrier properties of the fabric of the present invention. In addition, in order to further minimize the static problem that arises in conventional fabrics, it is possible to neutralize the charge on the surface of the fabric by performing a conventional electrification treatment, it may be prepared by performing a conventional softener treatment and dyeing. In addition, by attaching a natural or synthetic fabric to the surface of the fabric to have a double or multiple structure may be applied to more various applications.

Fabrics according to the present invention that can be produced through the above process can be utilized in various allergy-prevention household goods because the applicability to the body is similar to natural fabrics. For example, the fabric of the present invention may be utilized to block harmful microorganisms and micro by-products emitted therefrom. That is, since the fabric of the present invention has a pore size of 10 μm or less, it can block most of the conventional allergens, and is suitable for applications such as kava for existing household items such as bedding. In addition, the fabric of the present invention can be used as a patient article that emphasizes the necessity of hygiene and sterilization, that is, a cover sheet for medical bed mattresses, bedding and the like and curtain paper used for the isolation of the patient, dolls, baby clothes, infant play It can be used for various uses, such as household goods cover, such as appliances. Natural or synthetic wovens, nonwovens, films, sheets, etc. may also be bonded to form double or multiple structural forms.

In addition, the fabric of the present invention has high porosity stability due to washing, even after several washings, the pore size of the fabric is maintained on average 10㎛ or less to maintain the long-term blocking effect of harmful microorganisms and ultra-fine by-products.

Hereinafter, examples and comparative examples are presented to help understand the present invention. However, the following examples are merely provided to more easily understand the present invention, and the present invention is not limited by the following examples.

Example 1

Inclined polyester yarn (DTY 65D / 204F, Hyosung Co., Ltd.), weft polyester / nylon composite yarn (75D / 72F, 8 split type, Hyosung Co., Ltd.) After sizing using oil-based adhesives), it was flat weave with 170 warp yarns and 120 weft yarns per inch using an air jet loom.

The fabric was manufactured at a maximum temperature of 130 to 135 ° C. while maintaining a normal leveling time (RAVELING TIME) for at least 1 hour in order to increase bulkiness according to a general high pressure dyeing method. After the dyeing is complete, the fabric was cooled and dried at 70 ° C. for 15 minutes. The dyed fabric is made using a sheet processing machine with a top roller temperature of 80 ° C, a 100m / min fabric feed speed, a bottom roller pressure of 40 kg, and a top and bottom roller space of 2 mm. Fabrics with good performance were produced.

EXAMPLES 2-5

Hereinafter, the results obtained under the same conditions as in Example 1 except that the type and fiber processing conditions of the fibers were changed are shown in [Table 1].

division slope Weft Shire processing Performance Kinds Head
(inch) Kinds Head
(inch) Temperature
(℃) transfer
speed
(m / min) roller
pressure
(Kg) Bulky Castle ^{* 3} Blockability ^{* 4} Example 2 P ^{* 1} 168 PN ^{* 2} 120 80 120 40 ○ ○ Example 3 PN 165 60 cotton 125 60 120 50 ○ ○ Example 4 P 170 P 120 60 100 40 ○ ○ Example 5 P 170 60 cotton 118 60 120 50 ○ ○

* 1 P: Polyester DTY (65D / 204F (Example 2) Hyosung Co., Ltd.) 50D / 144F (Example 4,

       5) Huvis

* 2 PN: Polyester / nylon composite yarn (75D / 72F, 8 split type, Hyosung Co., Ltd.)

* 3 Bulkyness: Visual and tactile test after 10 consecutive washes.

            (○: Good, X: Poor)

* 4 Blocking property: After 10 consecutive washings, measure the pore size of the fabric surface.

            (○: no pore size 10㎛ or more, ×: available)

[Comparative Examples 1-4]

The results of the same conditions as in Example 1 except for the different kinds of fibers and different processing conditions are shown in Table 2. The fabrics of the comparative examples retained moderate bulkiness after washing, but the barrier properties. In the case of a large number of pore size 10 ~ 50㎛ after washing 5 times, a large number of sites of 30 ~ 80㎛ after 10 washes was found to be particularly unsatisfactory in terms of barrier properties.

division slope Weft Shire processing Performance Kinds Head
(inch) Kinds Head
(inch) Temperature
(℃) transfer
speed
(m / min) roller
pressure
(Kg) Bulky Castle ^{* 3} Blockability ^{* 4} Comparative Example 1 P ^{* 1} 168 PN ^{* 2} 120 60 100 500 △ × Comparative Example 2 P 165 PN 120 60 120 200 △ × Comparative Example 3 P 170 PN 120 60 100 150 ○ × Comparative Example 4 P 170 60 cotton 118 60 120 200 △ ×

* 1 P: Polyester DTY (65D / 204F (Comparative Examples 1, 2) Hyosung Co., Ltd., 50D / 144F (Comparative Example)

       3, 4) Huvis Co., Ltd.)

* 2 PN: Polyester / nylon composite yarn (75D / 72F, 8 split type, Hyosung Co., Ltd.)

* 3 Bulkyness: Visual and tactile test after 10 consecutive washes.

            (○: Good, △: Normal, ×: Poor)

* 4 Blocking property: After 10 consecutive washings, measure the pore size of the fabric surface.

            (○: no pore size 10㎛ or more, ×: available)

Claims (6)

In the high-density microporous fabric having an average pore size of 10 μm or less using microfiber, Synthetic fiber divided yarn made of polyester, polyamide, or a mixture thereof, the synthetic fiber island-in-the-sea yarn or the synthetic fiber microfiber; And cotton fibers; Bulky fabrics characterized in that the fabric produced by using at least one fiber selected from among the warp and weft yarns at a roller pressure of 10 to 60 kg, a fabric feed rate of 50 m / min or more, and a roller temperature from room temperature to 200 ° C. (Bulkness) and barrier manufacturing method of excellent fabric. delete The method of claim 1, wherein the fabric feed speed is 50 to 150 m / min. The method of claim 1, wherein the roller temperature is 60 to 130 ° C. The method of claim 1, wherein the roller temperature is controlled by the upper roller and the roller pressure by the lower roller, but the interval between the upper and lower rollers is 2 mm or less. A fabric having excellent bulkiness and barrier properties, which is prepared according to any one of claims 1 and 3.