KR101175095B1 - Manufacturing device waste cotton nonwoven fabric, its manufacturing method and nonwoven fabric - Google Patents

Abstract

PURPOSE: A method for fabricating a non-woven fabric of waste cotton is provided to obtain the non-woven fabric used as an adsorption fabric, a heat insulation material, and a soundproofing material. CONSTITUTION: A method for fabricating a non-woven fabric(1) of waste cotton comprises: a step of collecting, selecting, and pulverizing the waste cotton; a step of sheeting the pulverized cotton through an opener(12); a step of removing impurities and forming the cotton in a lap; a step of uniformly sheeting the cotton fabric to form a web of predetermined thickness; a step of setting the width of the cotton fabric using a molding machine(16); a step of pressing the cotton fabric using a pressing roller(17) and forming in a thin film; a step of needle-punching the cotton fabric using a punching machine(18); a step of applying water soluble glue on both sides of the cotton fabric in a thickness of 0.1-0.5 mm; a step of pressing the both side using a heating roller(20) at 60-75 Deg. C.; and a step of cutting and packing the prepared non-woven fabric.

Description

Waste fabric nonwoven fabric manufacturing apparatus, waste fabric nonwoven fabric manufacturing method and nonwoven fabric manufactured by the method of manufacturing the same {manufacturing devising wort cotton nonton fabrics, ITS MANUFACTURING METHOD AND NONWOVEN FABRIC}

The present invention overlaps the waste fabric having excellent adsorption effect of oil and water in the form of a thin film, and performs needle punching operation several times so as not to loosen it, and applies a water-soluble paste by applying a stitch bond method. It relates to a nonwoven fabric manufacturing apparatus for producing a nonwoven fabric by a method of stabilizing a product by a thermal roller for pressing after the production, a manufacturing method and a nonwoven fabric produced by the production method.

The nonwoven fabric prepared according to the present invention has a physically entangled structure by pulverizing a waste fabric that has been previously disposed of and then spreading it in multiple layers so as to have a high thermal insulation power and a large amount of oil absorption. The present invention relates to a method of manufacturing a nonwoven fabric of a used nonwoven fabric which can be used as a material, an oil rag, an environmental pollution prevention article, and a heating material, a nonwoven fabric manufactured by the manufacturing method thereof, and a manufacturing apparatus thereof.

Non-woven fabrics produced at home and abroad currently include dry non-woven fabrics, wet ray fabrics, needle punching nonwovens, water spans, span bonds, and meltblowns. It is divided into Melt Blown and Stitch Bond.

The dry nonwoven fabric is further classified into three types: chemical bonding nonwoven fabric, thermal bonding nonwoven fabric, and air ray nonwoven fabric.

The non-woven fabric made of polyester, polypropylene, rayon, and binion (fibers whose first processed product is called fiber) is weak in oil absorption. It causes a lot of residue to be left without wiping.

Therefore, in the case of an oil leak caused by a marine accident such as a ship sinking accident, the oil adsorption cloth is thrown in addition to the neutralizer spraying, but its effect is not expected.

In order to solve such a problem, a fiber adsorption cloth was developed, but even there is a problem that the oil absorption capacity of the petroleum material does not reach a satisfactory level.

In addition, even using a non-woven cleaning cloth made of conventional polyester, polypropylene, rayon, binion material to clean the floor of the building, there is a problem that the stains due to water and secretions remaining on the floor is not properly erased.

Accordingly, the present applicant intends to provide a nonwoven fabric using waste cotton fabric that can completely perform the absorption function by supplementing problems such as oil rags of petrochemical materials that are commercially available on the market, and thus preventing global environmental pollution and resources. To achieve the effect of recycling.

Patent Registration 10-1049623 (Registration date July 08, 2011)

In order to solve the above problems, the present invention, after overlapping a plurality of layers of the waste fabric in a thin film, and performing needle punching (Needle Punching) several times so as not to loosen, by applying a stitch bond method (Stitch Bond) The nonwoven fabric is made by applying the stabilized thermal roller to apply the product to make the nonwoven fabric tight, no dissipation and bleeding, perfect insulation and absorbent function, and no loosening of fabric An object of the present invention is to provide a nonwoven fabric manufacturing apparatus for providing a nonwoven fabric having improved adsorption effect of oil and water that does not occur falling, a nonwoven fabric manufacturing method using the manufacturing apparatus, and a nonwoven fabric produced by the manufacturing method thereof.

In order to achieve the above object,

The present invention is a crushing and crushing machine for crushing and grinding the waste cotton selected and collected;

Opening machine to straighten the agglomerated waste cloth supplied from the crushing and grinding machine,

The other cotton machine to loosen the woven cotton and the impurities to remove the impurities and to make a lap-like cotton (lap),

Hopper feeder for supplying to the carding machine of the rear end with a certain amount of the closed fabric supplied through the other cotton machine,

A card unit which evenly spreads the waste fabric supplied from the hopper feeder to form a web of a constant thickness;

A molding machine for setting a width of a closed fabric maintaining a constant thickness through the carding machine;

A compression roller for compressing the swelled closed cotton fabric roughened by the molding machine,

A punching machine for needle punching the waste fabric passed through the compression roller;

An injector for applying a water-soluble adhesive on both sides of the closed fabric which has passed through the punching machine;

And heating roller for stabilizing by thermally compressing the waste fabric passed through the injection device,

Waste fabric nonwoven fabric manufacturing apparatus comprising a cut and wire to cut and wrap the nonwoven fabric produced by the heating roller according to the standard, and

As a manufacturing method of the closed cotton nonwoven fabric according to the present invention,

Shredding and pulverizing the waste fabric which has undergone the sorting process after collection by crushing and crushing,

After the crushed, crushed waste cotton fabric is thinly spread through a cotton wool machine, it is loosened through a cotton wool machine to remove impurities and manufactured into a lump-shaped cotton (lap),

Manufacturing a web of uniform thickness by uniformly using a card machine to spread the waste cotton fabric supplied in a predetermined amount from the hopper feeder installed at the rear side of the other surface machine;

Setting a width of the closed fabric, which has undergone the carding machine, using a molding machine;

Compressing the waste fabric passed through the molding machine with a compression roller to produce a thin film;

Performing a needle punching operation by using a punching machine after laminating the multiple layers of the closed fabric in a thin film form;

Applying a water-soluble paste to a thickness of 0.1 mm to 0.5 mm by using an injector on both sides of the cotton fabric on which the needle punching operation is performed;

Stabilizing both sides of the cotton fabric to which the water-soluble paste is applied by thermocompression bonding with a heating roller at 60 to 75 ° C .;

It comprises a step of cutting and then cutting the nonwoven fabric produced by the stabilization process according to the specification by the cut and wire,

The water-soluble pool is water (H ₂ O) 70 ~ 80wt%; And

Poly (vinyl alcohol) (polyvinyl alcohol, PVA): polyvinyl pyrrolidone (polyvinyl pyrrolidone, PVP) 1: 1 to 1.3 of the adhesive composition mixed by weight ratio of 5 ~ 15wt%; and

DOP (Dioctyl phthalate) 0.1 ~ 0.5wt%; and

The method of manufacturing a nonwoven fabric of a closed cotton nonwoven fabric, characterized in that the composition is composed of a mixture of starch composition 6-15 wt% added protein (gluten) 10-15 wt% to wheat starch (wheat starch) 85 ~ 90wt%.

The nonwoven fabric manufactured by the closed fabric nonwoven fabric manufacturing apparatus and the nonwoven fabric manufacturing method using the same according to the present invention has the following effects.

first. Compared with general nonwoven fabrics, it is more flexible and has a high moisture content of about 90%. It is light and warm, has excellent breathability and moisture permeability, and has excellent effects as an absorbent cloth, insulation, and soundproofing material. It can completely complement the function, and even if a small amount of closed nonwoven fabric is used, it can absorb and remove a large amount of oil compared to the existing nonwoven fabric, and thus it can have a great effect as an absorbent fabric. House) When used for thermal insulation, it can have an energy saving effect by saving heating oil.

second. It is fixed by weaving irregularly arranged fibers without threading, but there are some differences in the properties depending on the type and entanglement of the fibers used. There is no characteristic that the cut portion does not loosen.

third. It is easy to cut and sew, and has good antibody stability, so it has little shrinkage and does not absorb moisture, so it is only applied to the surface.

fourth. Non-woven fabrics can be cut to pre-selected conditions and used for various purposes, such as absorbing cloth for oil absorption, insulation cover for plastic house, freeze protection cover for building or industrial machine maintenance, and also applied to sea surface, rock, retaining wall and gravel. It has the advantage of being easy to wipe off the oil.

fifth. The closed fabric nonwoven fabric according to the present invention is capable of reusing the absorbent cloth by sending the dehydrated oil to a regeneration oil factory by collecting the adsorbed oil and then dehydrating the oil after adsorbing the oil.

Sixth. In the manufacture of closed fabric nonwovens, the front and rear surfaces of the nonwoven fabrics are coated with an aqueous paste using the Stitch Bond method to stabilize the product with a compression heat roller, which can be dusted or pushed away from the nonwoven fabrics. The phenomenon does not occur, so the use efficiency is high.

1 is a front view showing a closed fabric nonwoven fabric manufacturing apparatus according to the present invention.
Figure 2 is a side view showing a needle punching process of the manufacturing process of the closed nonwoven fabric according to the present invention.
Figure 3 is a perspective view showing that the closed nonwoven fabric according to the invention made in the form of a roll towel.
Figure 4 is a perspective view of the closed fabric nonwoven fabric according to the present invention was produced in a form that can be used by cutting to a specified standard.

Hereinafter, a detailed description of the technical configuration will be described with reference to the accompanying drawings.

1 is a view showing a closed fabric nonwoven fabric manufacturing apparatus according to the present invention,

The closed fabric nonwoven fabric manufacturing apparatus 1,

A crushing and crushing machine 11 for crushing and crushing the selected waste cotton fabric,

The opener (12) to straighten the agglomerated closed fabric supplied from the shredder crusher (11),

The other surface machine 13 to release the waste cotton fabric passed through the opening machine 12 and remove impurities to make a lap-like cotton (lap),

Hopper feeder 14 for supplying to the carding machine of the rear end in a certain amount of the closed fabric supplied through the other surface machine (13),

A carding machine 15 which evenly spreads the closed fabric supplied from the hopper feeder 14 to form a web of a constant thickness;

A molding machine 16 for setting a width of a closed fabric for maintaining a constant thickness through the card machine 15;

Compression roller 17 for compressing the swelling closed cotton fabric through the molding machine 16,

A punching machine 18 for punching needles into the waste fabric passed through the compression roller 17,

Injector 19 for applying a water-soluble adhesive on both sides of the closed fabric passed through the punching machine 18,

A heating roller 20 for stabilizing by heat-compressing the waste fabric passed through the injector 19,

It comprises a cut and wire 21 for cutting and packaging the nonwoven fabric produced through the heating roller 20 according to the standard.

Looking at the closed fabric non-woven fabric manufacturing apparatus (1), the crushing machine (Disintegrator M / C) (11) is a single plate or a plurality of plates arranged in the circumferential direction of a plurality of grinding rods generally used as a grinder The rotor disk is rotatably mounted in the casing, and the pulverized material is crushed by throwing the pulverized object into the casing while rotating the rotor disk to impinge on the grinding rods rotating together with the rotor disk. Crushing and grinding the waste fabric.

The opener (Bale Breaker M / C) (12) is to automatically open the closed fabric, to open the agglomerated closed cotton fabric to supply to the other surface machine 13 which is continuously located in the rear end with a thickness of 4mm to 6mm. Device. In other words, the opener 12 is to unfold the cut light closed fabric in a row to supply to the other surface (13).

The cotton breaker (Waste Breaker M / C) 13 has a function of releasing the waste cotton fabric passed through the opener 12 and removing impurities to make a lap-like cotton, and the hopper feeder (Hopper). Feeder 14 has a function of supplying a closed amount of the fabric passed through the other surface machine 13 to the card unit 15 of the rear end.

The carding M / C 15 is connected to each other while passing through the waste fabric supplied from the hopper feeder 14 through a roller of several different needles to form a web. A carding device, which spreads the cotton evenly so that a constant thickness is maintained.

The molding machine (Wed Cross Layer) 16 is formed by loading the web formed in the carding machine 15 in a plurality of layers in the molding machine, to set the width of the closed fabric that was maintaining a constant thickness through this process do. Since the waste fabric passed through the molding machine 16 is in the swollen state, the thickness of the waste fabric is lowered by passing a cross roller 17 to compress it. At this time, the compression is compressed to 1/3 to 1/15 times as compared with the thickness before passing through the compression roller (17).

The cross-woven fabric passing through the cross roller 17 passes through a needle punching machine 18 to give irregular tanglings to each other, not to form tangled tissues like fabrics.

In addition, by applying a stitch bond method to the closed cotton fabric passed through the needle punching machine (Punching M / C) 18, a water-soluble paste is applied to stabilize the product with a thermal roller for compression, and to firmly manufacture a certain shape. Even when cutting (Cutting) to have the effect that the cut portion does not loosen or flow.

Looking briefly at the needle punching method by the needle punching machine (Punching M / C) 18, needle punching method is basically a vertical movement repeatedly using a variety of needle (needle) on the surface or the back of the laminated fiber layer In the needle punching process, the needle beam, which protects the needle, is usually vertically reciprocated by the punching process by forming a fiber layer having a certain thickness and fiber density. Stroke length is randomly adjusted according to the machine.

In general, the needle beam vertically reciprocates at a constant position, so when the needle depth of the needle is changed, a desired depth can be obtained by adjusting the position of the bed plate 171 shown in FIG. It becomes possible.

In some cases, the position of the stripper plate 172 may also be changed up and down to adjust the needle point.

The types of needle needles 173 employed in the needle punching machine 18 are very diverse and vary depending on the gauge, the position of the barb, the number of barbs, the shape of the barb, the length of the needle (3.0, 3.5 inches, etc.). There are several types of needles, so you can select and use a needle that is suitable for your intended product. The value of the desired product is sensitive to various variables such as the number of punching needles, needle needles and needle density, so careful design is required.

The structure and designation of the needle are divided into the crank shank of the upper part, the intermediate blade of the middle part, and the working blade of which the actual barb is engraved. Again, it is generally used up to 3.0-4.5 inches depending on the length of the needle. The most important barb for felting is that the shape has the greatest influence on the physical properties of the nonwoven fabric. And spacing should be selected carefully. According to its characteristics, it is divided into regular, cross and multi-barb.

In addition, the spray system 19 is a device for applying the water-soluble pool, which is one of the important technical configurations of the present invention, to both sides of the needle punched waste fabric through the needle punching machine 18.

The water-soluble pool induces a firm bond of the closed cotton nonwoven fabric according to the present invention, it is excellent in utility because it does not occur in any direction cutting the nonwoven fabric. Therefore, the functionality of the nonwoven fabric by use of the said water-soluble pool will be improved.

The coating of the water-soluble pool is made in the range of a thickness of 0.1 mm ~ 0.5mm, when the thickness of the coating is less than 0.1mm, the firm bonding properties of the nonwoven can be degraded, if it exceeds 0.5mm of the nonwoven Since the oil absorption and absorption characteristics may be deteriorated, it is preferable to limit the coating thickness of the water-soluble pool to be within the range of 0.1 mm to 0.5 mm.

The water-soluble pool is water (H ₂ O) 70 ~ 80wt%,

Poly (vinyl alcohol) (polyvinyl alcohol, PVA): polyvinyl pyrrolidone (polyvinyl pyrrolidone, PVP) 5 to 15wt% of the adhesive composition mixed in a weight ratio of 1: 1, 1.3,

0.1 to 0.5 wt% of DOP (Dioctyl phthalate),

Wheat starch (wheat starch) 85 ~ 90wt% protein (gluten) 10-15wt% added starch composition 6-15wt%; is composed of a mixture of.

More specifically,

Water 74.7wt%;

Poly (vinyl alcohol) (polyvinyl alcohol, PVA): 10wt% of the adhesive composition in which polyvinyl pyrrolidone (PVP) is mixed in a 1: 1 weight ratio;

0.3 wt% of DOP (Dioctyl phthalate);

90 wt% wheat starch (wheat starch) 15 wt% of starch composition to which 10 wt% of protein (gluten) is added;

The amount of water is determined so that the amount of water can be uniformly applied in the process of spraying the water-soluble pool through the injector, if the amount is less than 70wt%, it is not uniformly applied when applying to both sides of the waste fabric, the firmness of the nonwoven fabric It is difficult to expect the binding, and if the amount exceeds 80wt%, the amount of other components is relatively reduced, so that it is difficult to expect the binding of the nonwoven fabric by the water-soluble pool, so that the amount of water used is 70 to 80wt% of the total water-soluble pool. It is preferable to limit in the range of.

The poly (vinyl alcohol, PVA) constituting the adhesive composition is a water-soluble polyhydroxy polymer, a linear crystalline polymer having a flexible molecular chain. It has no toxicity, biocompatibility, biodegradability, mechanical properties and chemical resistance, and its application range is very wide. In addition, PVA has a high surface activity and solubility, and contains a hydroxyl group in the molecular structure, so that it is relatively excellent in miscibility when blended with other polymers.

In addition, the polyvinylpyrrolidone (PVP) is hygroscopic as a polymer (polymer) of N-vinyl-2-pyrrolidone, is soluble in water and alcohol and insoluble in hydrocarbons. The low molecular weight is used as a substitute plasma agent, and is also used as a water-soluble adhesive, a lip adhesive or a paper adhesive.

When the amount of the adhesive composition is less than 5wt%, the fixing of the water-soluble pool is not properly performed, and when the amount of the adhesive composition is more than 15wt%, the coating operation by spraying may not be performed smoothly. It is preferable to limit the amount to 5-15 wt% with respect to the pool.

The DOP (Dioctyl phthalate) is used as a plasticizer. When the amount of DOP is less than 0.1wt%, the fluidity of the water-soluble pool may be lowered, and when the amount of DOP is more than 0.5wt%, there is no big change in the fluidity. Since there is no meaning in the increase, the DOP (Dioctyl phthalate) is preferably limited to the range of 0.1 to 0.5wt% with respect to the water-soluble pool.

The starch is a starch composition in which 10-15 wt% of protein (gluten) is added to 85 to 90 wt% of wheat starch, which can increase the adhesive strength due to the use of protein. When the water content is less than 6wt%, the adhesiveness of the water-soluble pool may be reduced, and the firmness of the nonwoven fabric may be degraded. When the water content is more than 15wt%, the starch may not be easily applied by spraying the water-soluble pool. It is preferable to limit the amount to within the range of 6-15 wt%.

The injector 19 is not particularly limited, but an injector of an air injection method is used. That is, the nozzle main body is formed in the front end surface is formed with a nozzle hole for injecting the pool, the apparatus for injecting the water-soluble pool by the air spray is used.

After the water-soluble paste is applied to both sides of the waste fabric through the spray system 19, when heat is applied to both sides by a heating roller 20, dust is applied to the nonwoven fabric. No burping or slipping occurs and at the same time a nonwoven fabric with a firm bond is provided.

The nonwoven fabric completed through the heating roller 20 as described above is finished as a product by cutting the nonwoven fabric into a standard through a cut & wire (Cutting & Winder M / C) 21 device and packaging the same.

In addition, the closed cotton nonwoven fabric according to the present invention may be manufactured in the form of a rolled towel as needed (FIG. 3), or may be manufactured to be cut and used to a specified standard (FIG. 4).

Hereinafter, looking at the method of manufacturing the nonwoven fabric of the nonwoven fabric by using the nonwoven fabric manufacturing apparatus 1 again, first, after the waste cotton fabric is collected and then subjected to a screening process, the method is crushed and crushed by a crusher-crusher 11;

After the crushed, crushed waste cotton fabric is stretched thinly through the opening machine (12), loosening through the other surface machine (13) and removing impurities to prepare a lump-shaped cotton (lap);

Manufacturing the waste cotton fabric supplied in a predetermined amount from the hopper feeder 14 installed at the rear end of the other surface machine 13 using a carding machine 15 to produce a web of a constant thickness;

Setting the width of the closed fabric passed through the card machine 15 by using the molding machine 16;

Compressing the closed fabric passed through the molding machine 16 with a compression roller 17 to produce a thin film;

Performing a needle punching operation by using a punching machine 18 after stacking the multiple layers of the closed fabric in the form of a thin film;

Applying a water-soluble paste to a thickness of 0.1 mm to 0.5 mm by using an injection device 19 on both sides of the cotton fabric on which the needle punching operation is performed;

Stabilizing both sides of the cotton fabric to which the water-soluble paste is applied by thermo-compression with a heating roller 20 at 60 to 75 ° C .;

It comprises a step of cutting the non-woven fabric produced through the stabilization process according to the specification by the cut and wire 21 and packaging.

 That is, the closed fabric nonwoven fabric according to the present invention is manufactured by applying a method utilizing the advantages of needle punching and stitch bond, and primarily arranges fibers in a negative direction and has a special needle. Physically combine the web (Web) by using, at this time can vary the thickness and flexibility of the product by the number of punching of the needle or the density of the needle. In addition, the Stitch Bond method is applied to the rear end to stabilize the product with a thermal roller for pressing by applying a water-soluble paste in order to align the fabrics distorted at the first stage.

The nonwoven fabric according to the present invention is manufactured by performing a needle punching operation several times without unwrapping the overlapping layer of the closed fabric in a thin film by a revolutionary method, and applying a stitch bond method to a water-based method. By applying the glue for stabilization of the product by the heat compression roller 20, the tangling of the tissue is firm, there is no drifts and spills, it is possible to perform the warmth and oil absorption and absorption function perfectly.

The closed fabric nonwoven fabric according to the present invention has excellent function as an absorbent cloth and a function for keeping warm, and is suitable for use in interior of a vinyl house, home cleaning, car cleaning, and the like.

In addition, it has an excellent effect on wiping oils on sea surface, rocks, retaining walls, and gravel, so it is suitable for use in industrial machinery maintenance and cleaning, which can satisfy the needs of consumers who were dissatisfied with the efficacy of existing nonwoven products. high portential.

1: closed fabric nonwoven fabric manufacturing equipment
11: crushing and crusher
12: folding machine
13: masking machine
14: Hopper Feeder
15: card
16: molding machine
17: compression roller
18: Punching Machine
19: injector
20: heating roller

Claims (4)

delete Shredding and pulverizing the waste fabric, which has been subjected to the screening process after collection, with a crushing and crushing machine (11), and
After the crushed, crushed waste cotton fabric is stretched thinly through the opening machine (12), loosening through the other surface machine (13) and removing impurities to prepare a lump-shaped cotton (lap);
Manufacturing the waste cotton fabric supplied in a predetermined amount from the hopper feeder 14 installed at the rear end of the other surface machine 13 using a carding machine 15 to produce a web of a constant thickness;
Setting the width of the closed fabric passed through the card machine 15 by using the molding machine 16;
Compressing the waste cotton fabric passed through the molding machine 16 with a compression roller 17, but compressing to 1/3 to 1/15 times before passing through the compression roller 17 to produce a thin film form,
Performing a needle punching operation by using a punching machine 18 after stacking the multiple layers of the closed fabric in the form of a thin film;
Applying a water-soluble paste to a thickness of 0.1 mm to 0.5 mm by using an injection device 19 on both sides of the cotton fabric on which the needle punching operation is performed;
Stabilizing both sides of the cotton fabric to which the water-soluble paste is applied by thermo-compression with a heating roller 20 at 60 to 75 ° C .;
In the step comprising the step of cutting the non-woven fabric produced through the stabilizing step according to the specification by the cut and wire 21, and packaging,
The water-soluble pool is water (H ₂ O) 70 ~ 80wt%; And
Poly (vinyl alcohol) (polyvinyl alcohol, PVA): polyvinyl pyrrolidone (polyvinyl pyrrolidone, PVP) 1: 1 to 1.3 of the adhesive composition mixed by weight ratio of 5 ~ 15wt%; and
DOP (Dioctyl phthalate) 0.1 ~ 0.5wt%; and
Waste starch (wheat starch) 85 ~ 90wt% protein (gluten) 10 ~ 15wt% added starch composition 6 ~ 15wt%; The method of manufacturing the nonwoven fabric of the nonwoven fabric, characterized in that the composition.
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