Patent Application
20160369434
The present invention relates to fabricating fabrics; more particularly, relates to uniformly mixing a pigment and a C4 water-repellent agent into environmentally friendly water-repellent colored fabrics for significantly reducing waste water pollution from dyeing and processing without generating environmentally harmful perfluorooctanoic acid (PFOA) and perfluorooctane sulphonate (PFOS).
For making water-repellent colored yarns, a water-repellent fluorine-containing agent (C6 or C8) is used on winding after dyeing the yarns for adhering the water-repellent agent before drying. Yet, there are shortcomings. The water-repellent agent would not be adhered uniformly; wash fastness would be poor; the spinning device would be polluted; and, the water-repellent agent would generate environmental hormones of perfluorooctanoic acid (PFOA) and perfluorooctane sulphonate (PFOS). In addition, a lot of waste water would be produced to pollute the environment on dyeing the yarns. Traditional water-repellent C8 (8 carbons) fluorine-containing agent contains PFOA or PFOS, whose half-lives are long and would continue to exist in the natural environment while being low-dose accumulated in organisms to cause harm to human. Although the water-repellent C6 fluorine-containing agent is measured to have a far below concentration than the C8 fluorine-containing water-repellent agent and long-term residual harms are thus reduced, toxicity concern can not be completely ruled out. Hence, the prior art does not fulfill all users' requests on actual use.
The main purpose of the present invention is to provide an apparatus for binding a pigment, an environmentally friendly C4 fluorine-containing compound (water-repellent C4 fluorine-containing agent completely free of PFOA and PFOS), a dispersant and a related polymer substrate carrier to obtain water-repellent colored masterbatches; and spinning the masterbatches into yarns for uniformly mixing the pigment and the C4 fluorine-containing compound into fabric to obtain environmentally friendly water-repellent colored fabrics, where waste water pollution from dyeing and processing is significantly reduced without generating environmentally harmful PFOA and PFOS.
To achieve the above purpose, the present invention is an apparatus of fabricating environmentally friendly water-repellent colored fabrics, comprising a masterbatch generator, a drying device, a yarn spinner, a first fabric generator and a second fabric generator, where the masterbatch generator melt-kneads a raw material; after being melt-kneaded, the raw material is extruded to form a plurality of water-repellent colored masterbatches through cooling and granulating; the drying device is connected to the masterbatch generator; the drying device hot-dries the masterbatches to obtain a plurality of dried masterbatches; the yarn spinner is connected to the drying device to obtain water-repellent colored yarns by spinning; the first fabric generator is connected to the yarn spinner to obtain a water-repellent colored fabric of a knitted fabric, a woven fabric or a plush fabric; and the second fabric generator is connected to the drying device to obtain a water-repellent colored non-woven fabric. Accordingly, a novel apparatus of fabricating environmentally friendly water-repellent colored fabrics is obtained.
The present invention will be better understood from the following detailed description of the preferred embodiment according to the present invention, taken in conjunction with the accompanying drawing, in which
The following description of the preferred embodiment is provided to understand the features and the structures of the present invention.
Please refer to
The masterbatch generator 1 comprises a mixing unit 11; a high-speed powder kneading device 12 communicated with the mixing unit 11; a driving unit 13 located at a side of and connected to the powder kneading device 12; a cooling tank 14 located at another side of and connected to the powder kneading device 12; a granulator 15 located at a side of and connected to the cooling tank 14; and a collecting trough 16 located at another side of and connected to the cooling tank 14. The masterbatch generator 1 processes kneading and melt-blowing to a raw material; and, after being melted and kneaded, the raw material is extruded to form a plurality of water-repellent colored masterbatches 6a through cooling and granulating.
The drying device 2 is connected to the collecting trough 16 of the masterbatch generator 1 to hot-dry the masterbatches 6a for obtaining a plurality of dried masterbatches 6.
The yarn spinner 3 is connected to the drying device 2 and comprises a yarn-making device 31; a winding device 32 corresponding to the yarn-making device 31 at an end; and a plurality of rollers 33 located between the yarn-making device 31 and the winding device 32. The yarn spinner 3 obtains water-repellent colored yarns through spinning.
The first fabric generator 4 is connected to the yarn spinner 3 to obtain a water-repellent colored fabric, such as a knitted fabric, a woven fabric, a plush fabric, etc.
The second fabric generator 5 is connected to the drying device 2 to obtain a water-repellent colored non-woven fabric.
Thus, a novel apparatus of fabricating environmentally friendly water-repellent colored fabrics is obtained.
The water-repellent colored masterbatch 6 comprises 40˜69.5 weight percents (wt %) of a polymer substrate carrier 61; 0.01˜6 wt % of a dispersant 62; 1˜30 wt % of a C4 fluorine-containing compound 63; and 1˜30 wt % of a pigment 64. The polymer substrate carrier is made of poly(trimethylene terephthalate) (PTT), polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polypropylene (PP), polyethylene (PE), Nylon 6, Nylon 6,12, Nylon 6,6 or a mixture thereof.
On fabricating the water-repellent colored masterbatches 6, the polymer substrate carrier 61, the dispersant 62, the C4 fluorine-containing compound 63 and the pigment 64 are put in the mixing unit 11 of the masterbatch generator 1 to be mixed by a high-speed powder kneading device 12 at a rotational speed of 1000 rotations per minute (RPM) ˜3000 RPM for a time of 10˜90 minutes. Thus, the C4 fluorine-containing compound 63 is quickly and uniformly dispersed in a polymer-substrate-carrier mixture for forming a water-repellent polymer-substrate powder having the C4 fluorine-containing compound 63 and the pigment 64 uniformly dispersed. Therein, the water-repellent polymer-substrate powder is kneaded and granulated at a temperature of 220 Celsius degrees (° C.) ˜300° C. by a twin-screw kneading device having a screwing speed of 300 RPM˜400 RPM with coordination of the cooling tank 14 and the granulator 15 for forming water-repellent colored masterbatches 6a having uniform and smooth surface. Then, the fabricated water-repellent colored masterbatches 6a are collected in the collecting trough 16 to be hot-dried at a temperature of 110° C.˜140° for 6˜30 hours for obtaining the dried masterbatches 6.
On fabricating the water-repellent colored yarns, 1˜20 wt % of the dried masterbatches 6 are put into the yarn-making device 31 of the yarn spinner 3 to be spun with coordination of spinning nozzle 7 for obtaining the water-repellent colored yarns 8a having yarn finenesses of 1˜100 deniers; and, then, the water-repellent colored yarns 8a are winded by the winding device 32 through the rollers 33. Furthermore, by using the water-repellent colored yarns 8a for fabricating a fabric (i.e. a cloth), a water-repellent colored fabric 8 like a knitted fabric, a woven fabric or a plush fabric is fabricated through the first fabric generator 4.
Or, the second fabric generator 5 can melt-knead the 1˜20 wt % dried masterbatches 6 to obtain a water-repellent colored non-woven fabric 9.
Hence, the present invention binds a pigment, an environmentally friendly C4 fluorine-containing compound (C4 water-repellent agent completely free of perfluorooctanoic acid (PFOA) and Perfluorooctane sulphonate (PFOS)), a dispersant and a related polymer substrate carrier to obtain water-repellent colored masterbatches. Then, the masterbatches are spun into yarns for uniformly mixing the pigment and the C4 fluorine-containing compound into fabric to obtain an environmentally friendly water-repellent colored fabric, where waste water pollution from dyeing and processing is significantly reduced without generating environmentally harmful PFOA and PFOS.
To sum up, the present invention is an apparatus of fabricating environmentally friendly water-repellent colored fabrics, where a pigment, an environmentally friendly C4 fluorine-containing compound, a dispersant and a related polymer substrate carrier are bond to obtain water-repellent colored masterbatches; the masterbatches are spun into yarns for uniformly mixing the pigment and the C4 fluorine-containing compound into fabric; thus, an environmentally friendly water-repellent colored fabric is obtained for significantly reducing waste water pollution from dyeing and processing without generating environmentally harmful PFOA and PFOS.
The preferred embodiment herein disclosed is not intended to unnecessarily limit the scope of the invention. Therefore, simple modifications or variations belonging to the equivalent of the scope of the claims and the instructions disclosed herein for a patent are all within the scope of the present invention.
