PROCESS FOR THE PRODUCTION OF A DYED TEXTILE YARN

Description

Our Ref.: I0208583 Description of the industrial invention entitled: “Process for the production of a textile yarn dyed” By: FILATURA DI SANDIGLIANO SRL, Via XX Settem- bre 6, 13876 SANDIGLIANO (BIELLA) Designated Inventors: MONTELEONE Massimo Filed on: September 24, 2024 * * * DESCRIPTION Field of invention The present invention relates to a process for the production of a textile yarn, a textile yarn thus obtained and the use of said textile yarn as textile yarn for furnishing interiors and / or external and for the production of fabrics for interior and / or exterior furnishing. State of the art The term spinning (or process for the production) (production of a textile yarn) means the complex sequence of operations necessary for the transformation production of textile fibres into textile yarn or row. The essential purpose of spinning is in obtaining a final product as close as possible homogeneous, that is, having uniform characteristics of resistance, title, color, cleanliness and elasticity- ty. In essence, spinning is a set of operations processes that transform raw fiber into yarn. Yarn is a strong, homogeneous filament and long enough to be used both in the manufacture of fabrics, both in the confection knitting but also as a yarn for sewing or embroidery. Given that the fibers may appear in staple (wool, cotton, etc.) or continuous filament new (silk and synthetic fibers), spinning can be evenings performed on: short staple fiber, fiber in long staple, continuous filament fiber. It is also It should be noted that synthetic fibres can be also cut and transformed into flakes; the purpose of this operation is to be able to work them in- together with other non-length fibres for example limited. The processing phases change in relation tion to the type of starting fibre, in particular based on the length of the fibers. To transform a mass of fibers into a yarn the essential operation is twisting. The fi- side is the product derived from the union of a large quantity of textile fibres which, generally, It has characteristics of softness unlike of the thread which is thin, of theoretical length unlimited, made up of one or more silk threads or synthetic or artificial fibres, continuously spun; in relation to the yarn, it is usually of more regular section, smooth, rigid, shiny, but less soft and less thermally insulating. The spinning itself, also called spinning tra- standard, is the set of operations necessary to the transformation of textile fibres (excluding silk) into yarn. Improper spinning describes ti- typically the production of artificial fibres and synthetic with the supply chain. Although, as described above, the purpose is essential aspect of spinning is to obtain a final product as homogeneous as possible from a technical point of view from the point of view of color, there is more and more demand, within the market, of yarns having color non-homogeneous, mostly in the textile sector furnishings, especially for furnishing fabrics both external and internal (out- door / indoor). There are spinning techniques which, as material first, they use a dyed acrylic (or PET) pa- is, where the yarn thus obtained is used for the production of indoor and outdoor furniture; or spinning which uses cotton as raw material solution-dyed polyester in order to create an ef- uniform melange effect on the entire yarn obtained. These spinning techniques, however, do not per- they produce yarns with non-uniform colour neo along all dimensions of the yarn. In the state of the art there is a technique of fi- processing which allows to obtain yarns having colour non-homogeneous king, this technique consists in alternating, temporally and spatially, a colored yarn to another. This technique is all however limited to a specific spinning count: NM 1 / 10000. The possibility of having a process of spinning that leads to the production of a yarn having non-homogeneous color along all dimensions yarn, without limit of spinning count, it is therefore a need felt in the market. Summary of the invention The aim of the present invention is therefore that of obtaining a spinning process that brings you to the production of a yarn having no color homogeneous along all dimensions of the yarn. This goal is achieved by a process for the production of a textile yarn, from the yarn so obtained and its uses, as outlined in the an- no claims, the definitions of which form an integral part of this description. Detailed description of the invention A first object of the present invention re- look at a process for producing a yarn textile includes the phases of: a) prepare a first wick made of textile material spinning sile, in which at least 2% of said material textile fabric is solution-dyed or top-dyed; b) start spinning the first phase roving a) so as to start obtaining a basic thread; c) prepare a second wick made of material textile for spinning, in which at least 2% of said ma- textile material is solution-dyed or top-dyed, ini- start spinning the second wick so as to obtain a bundle of fibers; d) continuing the spinning of phase b) and phase c), roll up, for a certain period of time, the bundle of phase c) fibers on the base wire obtained thus creating a yarn with an extending effect tico; e) optionally dye the yarn from step d). With reference to this description and to the the united claims, with the term “dyed in “pasta” means a raw textile material (possibly a fiber) that is dyed first of spinning or extrusion, or that the co- lorante is added before spinning or of extrusion. It is a type of dyeing that for the more, but not exclusively, it is used for fi- synthetic fibres such as acrylic, viscose, polyester, polyethersulfone (PES). Many synthetic polymers especially acrylic resins, polyesters and polypropylene resins are in fact preferable colored by adding pigments before for- mation of the fibres, that is, adding them in the molten mass or dissolved in a solvent before of extrusion in the die or of weaving; in In English it is called dope dyeing or solution dyeing. With reference to this description and to the the united claims, with the term “tinto “tops” means a raw textile material (even- currently a fiber) that is dyed before the spinning or extrusion. In particular, usually while the tops dyeing is done on tape combed natural fibres of animal origin, of synthetic or artificial fibres. In parti- to colare, usually the combed ribbon is loaded cato on dyeing rods made of hollow tubes perforated mounted on supports of suitable dimensions to the subsequent dyeing operation, which will comes in a variable number of sealed autoclaves consisting of vertical cylindrical tanks. Success- the combed ribbon, after unwinding from the dyeing support, is subjected to rinsing final, which takes place in tanks arranged in series. In followed by a series of cylinders perforated (the intestecting) crossed by a flow of hot air, they have the purpose of mixing to smooth and even out the tape and then rewind it. With reference to this description and to the the united claims, with the term "wick" it means a thin band of light textile fibre essentially twisted, with a cylindrical section. According to a preferred embodiment of the process according to the present invention, in the phase a) the textile material to be spun is dyed in pasta or dyed tops for a % of at least 2% of said textile material to be spun. It follows that so much so that preferably the remaining % of the said textile material to be spun is raw, that is, not dyed, especially not paste-dyed or dyed tops. According to a preferred embodiment, the textile material to be spun in phase a) includes of, therefore, preferably, 2% of material solution dyed or top dyed and 98% of material crude oil. Even more preferably it includes the 10% of solution-dyed or top-dyed material and the 90% raw material. Even more preferably- te comprises 20% of solution-dyed material or dyed tops and 80% raw material. Even more preferably includes 30% dyed material in paste or dyed tops and 70% raw material Thu. Even more preferably includes 40% of solution-dyed or top-dyed material and 60% of raw material. Even more preferably com- takes 50% of the material dyed in solution or dyed tops and 50% raw material. Even more pre- probably comprises 60% dyed material paste or dyed tops and 40% raw material. Even more preferably it comprises 70% ma- dyed in solution or dyed tops and 30% of ma- raw material. Even more preferably com- takes 80% of the material dyed in solution or dyed tops and 20% raw material. Even more pre- It probably comprises 90% dyed material paste or dyed tops and 10% raw material. Even more preferably it comprises 98% ma- dyed material or dyed tops and 2% of ma- raw material. According to a preferred embodiment of the process according to the present invention, in the phase c) the textile material to be spun is dyed in pasta or dyed tops for a % of at least 2% of said textile material to be spun. It follows that so much so that preferably the remaining % of the said textile material to be spun is raw, that is, not dyed, especially not paste-dyed or dyed tops. According to a preferred embodiment, the textile material to be spun in phase c) includes of, therefore, preferably, 2% of material solution dyed or top dyed and 98% of material crude oil. Even more preferably it comprises 5% of solution-dyed or top-dyed material and 95% of raw material. Even more preferably includes 10% of solution-dyed or dyed material to tops and 90% raw material. Even more preferably includes 20% dyed material in paste or dyed tops and 80% raw material. Even more preferably it comprises 30% ma- dyed material or dyed tops and 70% of material raw material. Even more preferably com- takes 40% of solution-dyed or dyed material tops and 60% raw material. Even more pre- probably includes 50% dyed material paste or dyed tops and 50% raw material. Even more preferably it comprises 60% ma- dyed material or dyed tops and 40% of ma- raw material. Even more preferably com- takes 70% of the material dyed in solution or dyed tops and 30% raw material. Even more pre- preferably includes 80% dyed material paste or dyed tops and 20% raw material. Even more preferably it comprises 90% ma- dyed material or dyed tops and 10% of ma- raw material. Even more preferably com- takes 95% of the material dyed in solution or dyed tops and 5% raw material. Even more pre- probably comprises 98% dyed material paste or dyed tops and 2% raw material. According to a preferred embodiment of the process according to the present invention, the paste dyeing or tops of phase a) and / or phase c) It preferably happens with different colors or king with the same color (tone on tone). According to a preferred embodiment of the process according to the present invention each spinning phase is preferably carried out by means of- you use a spinning wheel. According to a preferred embodiment of the process according to the present invention, the fi- phase side d) is, preferably, a flame yarn mate. As known to the technician of the sector, with the term- flamed mine (or flammé) means an enlargement irregular, usually torpedo-shaped, which shape due to technical defect on the yarn; exploiting This defect is intentionally created by creating flamed yarns which present enlargements at desired intervals, and with which fancy knitted garments are made or fabrics such as shantung; they are also called flame- fabrics that feature buttons and strips of co- lively lorises especially with occasional swellings very marked. According to a preferred embodiment of the process according to the present invention, the ma- textile material of phase a), and / or the textile material phase c), is chosen between: acrylic, acrylic re- cycled, polyester, recycled polyester, polye- flame retardant polyester, flame retardant polyester recycled flame retardant, polyethylene terephthalate (PET), recycled polyethylene terephthalate (PET), viscose, recycled viscose, polyethersulfone (PES), polyether recycled resolfone (PES), metallized polyester (ME), recycled metallized polyester (ME) or their mixtures. Preferably, step e) of dyeing the phase d) yarn occurs when the woven material phase c) is polyester or viscose. According to a preferred embodiment of the process se- according to the present invention, the textile material of phase a), and / or of phase c), is preferably a solution-dyed textile material. According to another preferred embodiment of the process se- according to the present invention, the textile material of phase a), and / or of phase c), is preferably a dyed textile material tops. Preferably, the textile material of phase a), and / or phase c), is a material for outdoor use and / or for indoor use indoors. Optionally, acrylic and po- The esters can be acrylic and polyester colo- rati. With reference to this description and to the attached claims, with the term “acrylic- co” means a synthetic fibre produced in par- acrylonitrile, a monomer that constitutes al- minus 85% of the repeating units in the po-chain limeric fiber. According to a preferred embodiment of the process according to the present invention, the fi- phase b) spinning and / or phase c) spinning is made by means of a spinning wheel. According to a preferred embodiment of the process according to the present invention, the pe- phase time period d) is between 0.01 seconds season and 5 minutes. According to a preferred embodiment of the process according to the present invention, the fa- if d) can be repeated several times within the process claimed, in particular, preferable mind, the time period of phase d) can be repeated several times throughout the whole process indicated. A second object of the present invention concerns a textile yarn obtainable from the process as described above. A third object of the present invention re- see the use of the above textile yarn as a yarn- to furnishing textiles for interior environments and / or external. A fourth object of the present invention re- see the use of the above textile yarn for the production of furnishing fabrics for rooms internal and / or external. Preferably, but not exclusively specifically, these fabrics are jacquard or velvet. Preferably, the process according to the presen- This invention can be described in the following mo- do: on the spinning mill's rolling mill there is one wick, which is weighted and stretched on the base of the desired final product. On the same lami- another wick is inserted (also in this case grammed and ironed as needed). The resulting yarn will be composed of two ele- minds, which will become a unique product, synthesis of two or more different materials and colors. Preferi- the material used is chosen among: acrylic, recycled acrylic, polyester, recycled polyester- to, flame retardant polyester, polyester re- recycled flame retardant, polyethylene terephthalate- side (PET), recyclable polyethylene terephthalate (PET) to, viscose, recycled viscose, polyethersulfone (PES), recycled polyethersulfone (PES), polyester metallic (ME), metallic polyester (ME) re- cycled or their mixtures. This material is preferable preferably a solution-dyed material. Preferably while the material is a material for use outdoors (outdoor) and / or for indoor use (in- door). The process according to the present invention allows the material to pass through the spinning mill's rolling mill a wick of (for example) acrylic dyed in pa- is. Subsequently the fibre of an al- some wick (likely, for example, another acrylic dyed in paste) and you will get a effect of colors with more or less long strokes, reproducible and controllable. The yarns obtained from the known techniques described in the “State of the art” section they allow you to obtain black yarns with uniform color. The process according to the present invention it allows instead, advantageously, to use in the rolling mill a preferably paste-dyed fibre where it is arro- take another fiber, also preferably dyed in paste but treated differently or another fiber completely different (but always preferably paste dye), in order to obtain at the moment of spinning color effects at different times, thanks to the rolling, for a certain period of time, of the fiber bundle of phase c) on the fi- the basic phase b). Differently from the known state techniques of art, the process according to the present invention The action does not foresee alternation, either temporally both spatially, of a colored yarn and of an al- colored yarn; the process according to the present your invention in fact includes a phase in which the two threads are rolled up together (therefore overlapping) sti), not alternated. The aforementioned art technique note also has the constraint of being limited to a specific spinning count: NM 1 / 10000; process according to the present invention is instead a process without the aforementioned constraint, the process can in fact be performed with any title spinning and the yarn that can be obtained is a yarn that can be flamed or linear (or both). The process according to the present invention per- It therefore advantageously allows the production of yarns having non-homogeneous color along all dimensions yarn ni, in particular the % of material dope-dyed or top-dyed textile of phase a) and / or of phase c) used and claimed in the process according to the present invention they allow to obtain black yarns with a surprising nuanced effect mated, in particular a very delicate shaded effect cato, not otherwise obtainable. Advantageously, moreover, this yarn can be used as a furnishing textile yarn for internal and / or external environments and / or for the creation production of furnishing fabrics for indoor environments internal and / or external.

Claims

CLAIMS 1. Process for the production of a textile yarn comprising the steps of: a) preparing a first roving of textile material to be spun, in which at least 2% of said textile material is solution-dyed or top-dyed; b) starting spinning of the first roving of step a) so as to begin to obtain a basic yarn; c) preparing a second roving of textile material to be spun, in which at least 2% of said textile material is solution-dyed or top-dyed, starting spinning of the second roving so as to obtain a bundle of fibres; d) continuing the spinning of steps b) and c), rolling, for a given period of time, the bundle of fibres of step c) on the basic yarn thus obtaining a yarn having an aesthetic effect; e) optionally dyeing the yarn of step d).

2. Process according to claim 1, wherein the textile material of step a) and / or the textile material of step c) is selected from: acrylic, recycled acrylic, polyester, recycled polyester, flame-retardant polyester, recycled flame-retardant polyester, polyethylene terephthalate (PET), recycled polyethylene terephthalate (PET), viscose, recycled viscose, polyethersulfone (PES), recycled polyethersulfone (PES), metallized polyester (ME), recycled metallized polyester (ME) or mixtures thereof.

3. Process according to claim 1 or 2, wherein the spinning of step b), and / or the spinning of step c), is carried out by means of a spinning machine.

4. Process according to any of claims 1 to 3, wherein the time period of step d) is between 0.01 seconds and 5 minutes.

5. Textile yarn obtainable from the process according to any of claims 1 to 4.

6. Use of the textile yarn according to claim 5 as a furnishing textile yarn for internal and / or external environments.

7. Use of the textile yarn according to claim 5 for the production of furnishing fabrics for internal and / or external environments, preferably said fabrics are jacquard or velvet fabric.