KR100587474B1 - Natural fabric for bed having less nappy property and enforced tensile strength - Google Patents

Abstract

The present invention relates to a fabric for a bed, and more particularly, to a bed fabric or fabric suitable for use in a bed cover or a mattress with less fluff and tensile strength being woven with two to 20-60 yarn twisted yarns.

According to the present invention has a high density to block the dust coming from the bottom of the bed while having an effect that can provide a fabric satisfying the thickness for the bed mattress or bed cover. In addition, the fabric according to the present invention has the advantage of being skin-friendly and harmless to the human body because it maintains the density and strength of the fiber suitable for use in the bed even when lint does not occur well and coated with harmful chemicals.

Fabric, yarn, bed cover, mattress, lyocell

Description

Natural Fabric for Bed Having Less Nappy Property and Enforced Tensile Strength}

Figure 1 shows a partial cross-sectional view of the mattress to which another fabric is applied to the present invention.

Figure 2 shows the processing process of the fabric made of lyocell.

* Description of the major symbols in the drawings *

1. lyocell fabric paper 2. cushion cotton

3. Spring

Field of invention

The present invention relates to a fabric for a bed, and more specifically, when weaving using a warp yarn with twisted yarn of 20 to 60 stitches, less fluff and stronger tensile strength are used for a bed cover or a mattress. It relates to a bed fabric made of a suitable natural material.

Background of the Invention

Recently, the main cause of allergic diseases caused by environmental pollution in the house is mostly due to animal hair or dust mites. As described above, ticks, which are organisms that cause allergies by parasitic to the environment in which humans work, have a size of about 100 to 300 μm and cannot be observed with the naked eye. In addition, feces having a size of about 40 μm or less discharged from ticks are also a major source of allergy.

The most effective method currently known as a preventive measure for allergic diseases caused by mites is to use a woven fabric having an average pore size of 10 µm or less by using a microfiber yarn having a single yarn fineness of 0.5 denier or less.

However, in this method, the density of the filament of the yarn is monodenier 0.5 to 1 denier due to the movement of the human body at the time of sleep because the high density fabric directly receives the weight of a person when used for bedding, and also the size of the pores increases after washing. The weave surface is prone to damage. For this reason, there is a problem that it is not suitable to use a fabric using a microfiber for bedding.

In order to block dust generated from the inside of the mattress, weaving the fabric with natural fibers and then performing a non-breathable coating treatment such as urethane or vinyl on the surface, which is coated with water and air Due to the prevention of permeation, rather than the moisture generated inside it is the cause of the occurrence of microorganisms, there is a problem that the chemical products used for coating adversely affects the human skin.

And even with fine pores, that is, recent studies have found that conventional fabrics with an average pore size of 10 μm do not effectively block allergens.

In addition, fabrics that have been used for conventional bed mattresses or bed covers that do not generally use microfiber yarns have been used as woven yarns having a thickness of 15 or more, that is, 10 or 7 thick. This is because only a yarn having a thickness of 15 or more can be used to maintain a thickness and an appropriate tensile strength of about 1.0 mm or more, which are required for fabrics used for bed mats.

It is preferable to use a more dense fabric because the fabric woven with the yarn is easy to cause lint or blocks dust from the bed mattress, but the dense fabric is a sum of 30 to 60. Because of the use of twisted yarns, there was a problem that the mechanical tensile strength is weak for use in bed mattress or bed cover.

In order to compensate for this, special treatments such as chemical coatings were used while using denser fabrics made of 30 to 60 twisted yarns, but the chemicals used for coatings are harmful to the human body. There was a problem that carcinogens are often detected.

Accordingly, the present inventors have completed the present invention by developing a bedding fabric made of a natural material that maintains the degree of mechanical strength that can be used for a bed while being dense without chemical treatment on the fabric manufactured by weaving the yarn, and has less lint. It came to the following.

After all, an object of the present invention is to provide a bed fabric made of a natural material with a low fluff and tensile strength by weaving by using the same warp and weft yarn in a twisted yarn that is twisted 20 to 60 number.

Another object of the present invention is to provide a bed fabric made of a natural material that is woven in a twisted yarn woven twisted lyocell, environmentally friendly and enhanced sterilization.

In order to achieve the above object, the present invention is a bed material for use in a bed cover or a mattress, a natural material having a low fluff and tensile strength is woven with a lysed yarn of lyocell yarn given a twist of 20 to 60 Provides fabric for beds.

In the present invention, the twisted yarn may be characterized in that the twisted yarn of the lyocell yarn given the twist of 30.

In addition, the yarn may be characterized in that the natural lyocell or a mixed yarn of lyocell and synthetic fiber yarn, the mixed yarn may be characterized in that the lyocell and anti-filling polyester is mixed at about 70:30. At this time, if the lyocell and the anti-filling polyester ratio is 60:40, the touch is insufficient. If the lyocell and the anti-filling polyester is 80:20, the feel is excellent and fluff and strength are lowered.

The yarn may also be characterized in that weaving by giving a 400T / M ~ 800T / M effect with a twisting machine.

Bed fabric according to the present invention is a fabric woven using lyocell yarn twisted two layers of 20 ~ 60 number of yarns, less lint, and because the tensile strength is enhanced, it is suitable for use in bed covers or mattresses.

Hereinafter, the present invention will be described in detail.

1. Material

Cotton or cotton and synthetic fiber blend fabrics have been mainly used for bed fabrics, but using lyocell fibers or lyocell blends, it is possible to manufacture bed fabrics that are environmentally friendly and have good skin-friendly and sterilization power.

Lyocell is a new fiber made of cellulose extracted from wood pulp, a silky soft touch, hygroscopicity better than cotton, and almost as strong as polyester. The new material Lyocell, which was newly created in the last 30 years since the development of Spandex, was named `` Lyocell '', a new generic name from BISFA, an international organization that established fiber standard terms in 1989. The company has also been recognized as a newly developed fiber by the US FTC.

Since the 1960s, various environmental pollutions caused by the production of chemical fibers and harmful components of the human body have caused many companies in Europe to be harmless to the environment and the human body. The lyocell fiber does not generate any contaminants in the production process and amine oxide, the only solvent used in the production process, is collected and reused for almost 95%. It is also called environmentally friendly fiber.

2. Weaving process

In order to improve weaving using lyocell yarns, weaving machine gives 400T / M ~ 800T / M (400 ~ 800 tightenings per meter) effect and weaves twisted yarns with two layers of yarn. When used as a weft yarn, weaving is excellent and no wool or lint occurs on the surface of the weave. The yarns prepared for the weaving yarn are prepared to be inclined with a regular warp yarn, and weaved by jacquard looms. The lyocell yarn is used in the same way as the warp and weft yarn, and the density of the warp and weft yarn is woven to the normal density. However, the problem that the lyocell is divided by giving excessive density at the time of weaving occurs, in order to improve this, give the appropriate twist number and twist as the setting conditions.

3. Dyeing

After the weaving process as described above, it enters the dyeing process. Swelling behavior of lyocell fibers in aqueous solution is similar to swelling behavior of regenerated fibers. The relatively high swelling capacity of lyocells, especially in alkaline salt solutions, increases the volume of the raw materials that follow. At the same time, mechanical influences easily cause deformation of yarns (a thin collection of artificial fibers such as cotton, wool, raw silk, and artificial fibers such as rayon synthetic fibers) in the swelled state.

Table 1 below shows the extent to which the fiber volume increases after the fiber is swelled in water.

Cotton Lyocell Modal (Modal) Viscose  Volume increase [%]  35  67  63  88

Such increase in volume and plasticity and flexibility by water reduce the flow of saline solution when dyeing yarns.

Therefore, the following precautions are required.

a) It must be compactly wound in relation to the diameter of the failure when winding up to Bobbin to ensure uniform saline circulation, uniform staining.

b) the strength of failure should be between 300 g / dm ³ and 400 g / dm ³ , or between 20 and 30 Shore. And the strength of the failure is reduced by 10% compared to coarse fine yarn (typically 40 metric count) in the case of microfiber (generally 100 metric count).

c) The weight and diameter of the failure depends on the dyed tube, where the dyed tube 4 ° 20'170mm has approximately 825g weight and 160mm diameter, and the dyed tube 4 ° 20'145mm has approximately 650g weight and 120m diameter. . This requires the use of a dyed tube with axial flexibility because it can further absorb the pressure caused by swelling.

d) The flow of saline solution depends on the swelling state of the fibers, mainly pH and count. On the one hand, high amounts of alkali increase the swelling of the fibers and can substantially reduce the flow of the salt solution. Therefore, this should be taken into account when choosing dyes and dyeing processes. As is commonly used in reactive dyeing, electrolyte addition has no significant effect on the flow of the salt solution. On the other hand, when finer fiber counts are used, the flow of saline is reduced for the same number of yarns.

e) Due to the high dye affinity of lyocell fibers, a dyeing cycle should be used where dyeing cycles are crossed and satisfactory saline is circulated.

f) The circulation interval should be set to 3: 4 min or 4: 5 min because the flow of the salt solution varies depending on whether the direction of the flow is from outside to inside or outside.

g) The salt differential pressure range may be specified as 0.3 to 0.5 bar. The high pressure of the differential should be avoided as it can cause yarn deformation.

h) Dehumidifier. The addition of a penetration enhancer increases the uniformity of the dye. For example, 0.3 g / l albegal FFA (CIBA).

i) Rounding the edges, especially in conical dyeing packages, has a positive effect on dyeing uniformity.

4. Yarn processing

After the dyeing process, the appropriate processing agent for the yarn must be treated. The amount added should be much less than that of cotton (30-50%). Especially in the case of microfiber yarns, when the amount added is too large, the strength of the yarns is significantly reduced. Therefore, a processing agent should be selected so that the static fiber / fiber adhesion is reduced as little as possible, so that the dynamic fiber / metal adhesion is reduced as much as possible. Preferably, the following processing agent is selected. Sapamin Pfersee Chemie (WBF), Destofil LC fl. (Clariant), Belfasin GT (Henkel), Aquasoft (Henkel) and the like are used.

5. Processing of the fabric

Lyocell's fabric can be processed continuously using rope processing and Viscose or Model Woven Fabric. Figure 2 shows the processing process of the fabric made of lyocell. Pretreatment through singing both sides, desizing / prewashing, causticizing and bleaching, and reactive dyeing or batting in the form of ropes in the open. After the vat dyeing, the fabric is processed through a process of softening, resin processing and sanizing. At this time, the causticization, bleaching and resin processing can be carried out selectively.

Since lyocells are non-fibrilling fibers, they can detect early fibrillation and defibrillation.

① Singeing

A hairdresser is done to reduce the fluff on the surface and get a clean fabric. This is to remove in advance the fluff phenomenon generated during washing.

② Prewashing

③ Alkaline solution pretreatment

Alkaline treatment improves handling and initial appeal by reducing wet strength, which increases variability, results in a good reaction in dyeing, uniforms the appearance of rare wrinkles and wear marks, and improves fluffing during washing. .

④ dyeing

Dyeing is converted according to dye type. In the direct dye method, lyocell has less dyeing amount due to mutual repulsion than general fiber, so the dyeing time should be longer. Reactive dye method is used under the same dyeing conditions. As the color appears pale, the concentration of the dye needs to be increased. Other methods are treated according to the rayon dyeing method.

⑤ high-grade

In general, advanced processing with reactive resins has adequately controlled the drug so that particularly low concentrations of formaldehyde reactive resins have proven to be suitable in terms of effectiveness.

Input condition Formaldehyde resin 40 to 60 g / l (low concentration) Softener 20-40 g / l Catalyst 12-18g / l Acetic acid 60% 1m / l Solution pick up 90% dry 110 ~ 130 ℃ Condensation 150 ° C./5 min.

⑥ Softener

Nonionic softeners such as polyethylene, fatty acid amides and fatty acid esters are suitable, especially silicone softeners which should be used only at low concentrations because they promote pilling cycles and are mixed with nonionic fatty acid amides or fatty acid esters.

⑦ Wash pilling / Hairiness

As is known from regenerated fibers, lyocell structures can be easily released from yarn compounds, causing pilling and hairiness in home laundering, thus improving quality and performance in the following ways:

-Increase the twist of the thread (a = 110)

-knit-wear structure (fine fabrics, increased stitch row compared to cotton, small stitches, increased yarn strength by 5%)

-Siro yarn

The use of siro yarn can reduce surface fineness.

-Circular-knitted fabric.

As a result of inverting the fabric tube, the inner surface of the fabric surface is smoothed during the wetting process, reducing the occurrence of hair on the surface. Then, during dehydration and drying, the fabric tube must be flipped again prior to staring and polishing.

⑧ Net dry

Dry sufficiently at 100 ° C.

⑨ Tentering

Overfeed 13% Residual dampness 55% on co scale Temp 110 ℃ Speed 8 chamber 26 ~ 30m / min.

Ing Compacting (toptexd) or sanforinzing

Processed for excellent gloss and handling and dimensional stability improvement.

As described above in detail specific parts of the present invention, it is apparent to those skilled in the art that such specific descriptions are merely preferred embodiments, and thus the scope of the present invention is not limited thereto. something to do. Thus, the substantial scope of the present invention will be defined by the appended claims and their equivalents.

As described in detail above, according to the present invention has a high density, there is an effect that can provide a fabric that satisfies the thickness for the bed mattress or bed cover while blocking the dust rising from the bottom of the bed.

In addition, the fabric according to the present invention has the advantage that it is skin-friendly and harmless to the human body because the lint does not easily occur during use and maintains the density and strength of the fiber suitable for use in the bed without coating with harmful chemicals.

Claims (6)

Bed fabrics used for bed covers or mattresses, woven from lyocell yarns with 20 to 60 twists, less than 1mm thick, low fluff, high tensile strength, non-coated Bed fabric made of breathable natural material. delete The bed fabric of claim 1, wherein the lyocell yarn is a natural lyocell or a mixed yarn of lyocell and synthetic fiber yarn. 4. The bed fabric of claim 3, wherein the blended yarn is mixed with lyocell and anti-filling polyester at about 70:30. 5. The dyeing interval of any one of claims 1 to 4, wherein the dyeing cycle of the lyocell yarn is set at 4: 4 min and the dyeing circulation interval from inside to outside is 4: 3 min. Bed fabric made of natural materials, characterized in that dyed in the condition. delete

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