JP2012062596A - Method for producing tubular twisted yarn and tubular twisted yarn produced by the method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for producing a tubular twisted yarn with excellent productivity, which allows appropriate control of functional coating materials applied to the tubular twisted yarn so that various functions can be sufficiently exerted according to the applications of the tubular twisted yarn without loss of moisture-absorbing/releasing properties and flexibility of a paper tape as a base, and to provide the tubular twisted yarn produced by the method.SOLUTION: In the method for producing a tubular twisted yarn 10 obtained by twisting a paper tape 12, a functional coating material 14 is applied to the surface of the paper tape 12 in a portion which is exposed as the outer surface of the tubular twisted yarn 10, at least when the tubular twisted yarn 10 is formed, from a side end edge 12a on a winding end side during twisting toward the center of the paper tape 12 in a width direction. Then, the paper tape 12 is twisted so that the portion having the functional coating material 14 applied thereto is arranged to form the whole exposed surface of the tubular twisted yarn 10.

Description

  The present invention is a method for producing a functional tube twisted yarn in which various functions are given to a cylindrical twisted yarn formed by cutting a paper into thin pieces and twisting the paper, and the method. It relates to a twisted tube.

  A thin paper with a waist is cut into thin paper to obtain a paper tape, and the twisted tube formed by twisting the paper tape becomes a paper fabric by weaving it, making it a material for wallpaper, slippers, hats, seat covers, etc. It is used as an alternative to tatami mats.

  Conventional tube-twisted yarns used for such applications have mainly paid attention to discoloration resistance, good touch and design, but recently, various functions (for example, water repellency) have been adapted to various applications. Oil repellent, deodorant, antibacterial, mite-proof, mold-proof, flame retardant, etc.) have been required.

  Therefore, as a method for imparting various functions to the tube twisted yarn, a functional paint composed of a water / oil repellent, a deodorant, an antibacterial agent and the like is applied to the tube twisted yarn. For example, in Patent Document 1, a cylindrical twisted yarn used as a tatami surface substitute for grass is impregnated with a paint composed of a water repellent, a functional substance, and a resin to provide a coating layer. A technique for imparting various functions (for example, an antibacterial deodorizing function, a flame retardant function, etc.) possessed by an active substance is disclosed.

  Here, when a coating layer is formed by impregnating and applying a functional paint to a twisted tube, the pipe is twisted into an impregnation bath filled with the functional paint as described in Patent Document 1. A so-called dipping method in which the twisted yarn is immersed is used.In this dipping method, the properties of the paper tape itself constituting the cylindrical twisted yarn (for example, water absorption and density), the twisted state when twisted into a cylindrical shape ( (For example, twist shape, number of turns, diameter, etc.) or functional paint properties (for example, solid content concentration, viscosity, fluidity, etc.) There is a problem that fine adjustment of the impregnation amount is difficult due to fluctuation.

  In addition, since the mechanical strength of the paper tape in which the functional paint has been sucked is extremely reduced, when the dipping method as described above is used, the functional paint is impregnated and applied only after being formed as a twisted-ply yarn. Could not do. And, when the functional paint is impregnated and applied in the form of a twisted-twisted yarn in this way, it becomes difficult to uniformly apply the functional paint to the entire longitudinal direction of the twisted-twisted yarn. As shown in FIG. 1, it was necessary to impregnate and apply the functional paint in two stages, and it was difficult to improve the production efficiency.

  Furthermore, by impregnating the functional paint in two stages in this way, it becomes possible to uniformly apply the functional paint to the entire longitudinal direction of the tube twisted yarn. In many cases, twisted and twisted yarns that are excessively impregnated with functional paint inhibit the moisture absorption and release properties of the paper that is the base of the twisted twisted yarn, and the excess functional paint solidifies. There has also been a problem that the flexibility and the texture of the twisted twisted yarn are impaired, and the workability is inferior due to yarn breakage (thread breakage) during machine weaving.

JP 2005-282152 A

  Therefore, the main problem of the present invention is to provide a twisted tube so that various functions according to the use of the twisted tube can be sufficiently exerted without impairing the moisture absorption / release property and flexibility of the paper tape as a base. It is intended to provide a method for producing a twisted twisted yarn excellent in productivity and a twisted twisted yarn produced by the method, which can optimize the management of the functional coating applied to the fabric.

The invention described in "Claim 1"
(A) A method for producing a twisted tube 10 obtained by twisting a paper tape 12,
(B) From the side end edge 12a on the winding end side when twisting the surface of the paper tape 12 that is exposed as an outer surface of the twisted twisted yarn 10 at least toward the center in the width direction of the paper tape 12 Apply functional paint 14
(C) After that, the paper tape 12 is twisted (d) so that the coated portion of the functional paint 14 is disposed on the entire exposed surface of the tube twisted yarn 10 (d). Manufacturing method.

  The invention described in "Claim 2" is the manufacturing method of the twisted twisted yarn 10 according to Claim 1, wherein "the functional paint 14 is a water / oil repellent, a reinforced resin, a deodorant, an antibacterial agent, an anti-bacterial agent". It is composed of at least one selected from the group consisting of mite agents, fungicides, flame retardants, far-infrared radiation agents, and negative ion generators ”.

  The invention described in "Claim 3" is the method of manufacturing the twisted twist yarn 10 according to claim 1 or 2, wherein the width w of the application portion of the functional paint 14 on the paper tape 12 is the total width W of the paper tape 12. It is characterized by being 10 to 50%.

The invention described in "Claim 4" is a tubular twisted yarn 10 manufactured by the manufacturing method according to any one of Claims 1 to 3,
(A) At least the outer surface exposed part of the twisted yarn 10 that is twisted in the cylinder is an application part of the functional paint 14;
(B) The inside non-exposed part is a non-application part where the functional paint 14 is not applied.

  According to the invention described in claim 1, the width of the paper tape from the side edge on the winding end side when twisting is applied to the surface of the paper tape that is exposed as at least the outer surface of the tube when twisted. Functional paint is applied toward the center of the direction. In other words, when the paper tape is twisted, a strong stress is applied to the paper tape. Since the functional paint is not applied to the side edge of the winding start side, the mechanical strength of the side edge is not lowered. Even if the paper tape is twisted after the functional coating is applied, it can be surely twisted to form a cylindrical twisted yarn without breaking (breaking paper).

  In addition, with respect to the paper tape on which the functional paint is applied from the side edge on the winding end side when twisting toward the center in the width direction of the paper tape, the application portion of the functional paint is applied to the entire exposed surface of the cylindrical twisted yarn. When the twist is applied such that the predetermined function of the functional paint is uniformly imparted to the entire twisted twisted yarn, the moisture absorption / release property and flexibility of the paper tape itself are not impaired. It becomes like this. In particular, as described in claim 3, when the width of the application portion of the functional paint in the paper tape is 10 to 50% of the total width of the paper tape, the cross section of the cross-section substantially orthogonal to the longitudinal direction of the obtained tubular twisted yarn is obtained. A shape will be in the state by which the functional coating material was apply | coated to about 2-3 turns from the outer periphery (refer FIG. 3). For this reason, the predetermined function of the functional paint can be imparted more uniformly and sufficiently to the entire twisted-ply yarn, and the moisture absorption and flexibility of the paper tape itself is fully exhibited without being impaired. Can be made.

  According to the invention described in claim 2, by appropriately selecting the functional paint, it is possible to sufficiently exhibit the necessary function in accordance with the use of the twisted-twisted yarn.

  Therefore, according to the present invention, it is applied to the twisted tube yarn so that various functions can be fully exhibited according to the use of the twisted tube yarn without impairing the moisture absorption / release property and flexibility of the paper tape as the base. It is possible to provide a method for producing a twisted-ply yarn having excellent productivity and a twisted-ply yarn produced by the method, which can optimize the management of the functional coating to be performed.

It is explanatory drawing which shows the outline | summary of the principal part in the manufacturing method of the cylinder twisted yarn of this invention. It is explanatory drawing which extracted and expanded the twist state of the paper tape in FIG. 1, and the application state of a functional coating material. It is an AA cross-sectional schematic diagram in FIG.

  The present invention will be described below with reference to the illustrated embodiments. FIG. 1 is an explanatory view showing an outline of a main part in a method for producing a twisted tube 10 of the present invention. As shown in this figure, the method for producing the twisted twisted yarn 10 of one embodiment of the present invention is roughly composed of a functional paint coating step S1, a paper tape twisting step S2, and a drying step S3.

  The functional coating application step S1 is a winding end side when twisting the surface of the exposed portion of the paper tape 12 that forms the base of the twisted twisted yarn 10 at least as the outer surface of the twisted twisted yarn 10. In this step, the functional paint 14 is applied from the edge 12a toward the center of the paper tape 12 in the width direction.

Here, the paper tape 12 serving as the base of the twisted twisted yarn 10 is obtained by thinly cutting a thin thin paper. For example, a basis weight of about 15 to 35 g / m ² mainly composed of softwood pulp. Paper is made and this paper is cut into a tape shape by cutting to a width of about 15 to 40 mm. In this embodiment, the paper tape 12 is wound around a paper tube (not shown) and stored or transported in a paper tape winding state.

  In this functional paint coating step S1, the functional paint 14 is applied from the side edge 12a on the winding end side of the paper tape 12 drawn from the paper tape winding (not shown) toward the center in the width direction by the coating device 16. The coating device 16 is continuously applied, but the coating device 16 is not particularly limited. In addition to the two-roll type roll coater 16x as shown in FIGS. 1 and 2, an air knife coater, a blade coater, a rod coater, and a gravure. Various coaters (coaters) such as coaters, spray devices, and the like can be used.

  Also, in the roll coater 16x shown in FIGS. 1 and 2, a pound 16c in which the functional paint 14 is stored is formed between the two rolls 16a and 16b, and the paper tape 12 that has passed through the pound 16c is placed between the rolls. The application of the functional paint 14 is completed by squeezing. For this reason, in such an application method, the functional paint 14 is applied to both surfaces on the side end portion 12a side of the paper tape 12, and the application portion of the functional paint 14 is (as described above). B) At least the paper tape 12 may be formed on the outer surface when the tube-twisted twisted yarn 10 is used. This is because even with such single-sided coating, the various functions of the functional paint can be sufficiently exhibited.

  Furthermore, the range in which the functional paint 14 is applied to the paper tape 12 is not particularly limited, but the entire width of the paper tape 12 from the side edge 12a on the winding end side when twisting is directed toward the center in the width direction of the paper tape 12. It is preferable to apply the functional paint 14 with a width w in the range of 10 to 50% of W, and more preferably in the range of 20 to 40%. When the application range of the functional paint 14 is smaller than the width w of 10% of the entire width W of the paper tape 12 from the side edge 12a on the winding end side toward the center in the width direction of the paper tape 12, the paper tape 12 is twisted to form a cylinder. When the twisted twisted yarn 10 is formed, it becomes difficult to dispose the application portion of the functional paint 14 on the entire outer surface of the tubular twisted yarn 10, and as a result, the effect of applying the functional paint 14 cannot be sufficiently exhibited. Conversely, when the application range of the functional paint 14 exceeds the width w of 50% of the full width W of the paper tape 12 from the side edge 12a on the winding end side toward the center in the width direction of the paper tape 12, the functional paint 14 However, since the functional coating 14 is excessively impregnated, the moisture absorption / release property and flexibility of the paper tape 12 are impaired, and the functional coating 14 is applied. rear Reduction in the mechanical strength of the definitive paper tape 12 becomes significantly, paper tape twisted paper tape 12 in step S2 of later in problems that said that tends to paper break occurs. That is, by setting the application range of the functional paint 14 to a width w of 10 to 50% of the entire width W of the paper tape 12 from the side edge 12a on the winding end side when twisting toward the center in the width direction of the paper tape 12. As shown in FIG. 3, when a cross-section substantially perpendicular to the longitudinal direction of the obtained twisted tube 10 is viewed, the functional coating 14 is applied to about 2 to 3 turns from the outer periphery. The predetermined function can be imparted more uniformly and sufficiently to the whole, and the moisture absorption / release property and flexibility of the paper tape 12 itself can be sufficiently exhibited.

  The “functional paint 14” applied in the functional paint application step S1 is a general term for paints composed of components that exert various effects when applied to the paper tape 12, and constitutes the functional paint 14. Specific examples of the main component include the following.

  Examples of the water / oil repellent component (water / oil repellent) include fluorine compounds having a perfluoroalkyl group or a perfluoroalkylene group.

  Examples of the component (reinforced resin) having an effect of reinforcing the paper tape include resins such as acrylic, vinyl acetate, acrylic-styrene copolymer, and ethylene-vinyl acetate copolymer.

  Examples of components having a deodorizing effect (deodorant) include carbon materials such as charcoal, bamboo charcoal, activated carbon, Bincho charcoal, silica, alumina, zeolite, and the like.

  Examples of the antibacterial component (antibacterial agent) include inorganic antibacterial agents such as silver, copper and zinc.

  Examples of components having an anti-mite effect (anti-mite agent) include pyrethroid compounds, organophosphorus compounds, carbamate compounds, and the like.

  Antifungal components (antifungal agents) include natural ingredients such as persimmon astringent, wood vinegar, cypress essential oil, hiba essential oil, wasabi thiol, catechin, organic compounds such as thiabendazole, diphenyl, orthophenylphenol, titanium oxide, etc. Inorganic compounds and the like can be exemplified.

  Examples of the flame retardant component (flame retardant) include nitrogen flame retardants such as melamine compounds and guanidine compounds, phosphorus flame retardants such as ammonium phosphate, and silicon flame retardants.

  Examples of the component having a far-infrared radiation effect (far-infrared radiation agent) include a far-infrared ceramic made of a mixture of alumina, silica, sodium oxide, potassium oxide, iron oxide and the like in addition to the above-described carbon material.

  Examples of the substance having a negative ion generation effect (negative ion generator) include tourmaline, zeolite, crystal, and graphite.

  The functional paint 14 is preferably used alone or in combination.

  The paper tape 12 that has passed S1 as described above is conveyed to the subsequent paper tape twisting step S2.

  The paper tape twisting step S <b> 2 is a step of twisting the paper tape 12 to which the functional paint 14 is applied using the tape twisting means 18 to form the tube twisted yarn 10.

  The tape twisting means 18 is for twisting the paper tape 12 by rotating the continuously transported paper tape 12 in a predetermined direction around the virtual axis along the running direction, thereby forming the tubular twisted yarn 10. . In addition, the code | symbol 20 in FIG. 1 is a guide roll for changing the driving | running | working direction of the cylinder twisted twisted yarn 10 which passed the tape twisting means 18. FIG.

  Here, in the method of manufacturing the twisted tube 10 of the present embodiment, the functional coating 14 is applied to the side end portion 12b on the winding start side where a strong stress is applied to the paper tape 12 when the paper tape 12 is twisted. (See FIG. 2), the mechanical strength of the side end portion 12b is not lowered, and even if the paper tape 12 is twisted after the functional paint 14 is applied, it is not broken (paper cut). The tube twisted yarn 10 can be formed by reliably twisting.

  In addition, the outer diameter of the tubular twisted twisted yarn 10 formed in the paper tape twisting step S2 and the diameter of the cavity generated in the center thereof are not particularly limited, but the end use and ease of processing, etc. From the viewpoint, the outer diameter of the twisted tube 10 is set to about 0.8 to 2.0 mm, the diameter of the cavity is set to about 0.2 to 0.8 mm, and the number of turns is set to about 4 to 15 turns. It is preferable to do this.

  In the subsequent drying step S3, the tubular twisted twisted yarn 10 formed as described above is dried by a drying means 22 such as a hot air drying device or a far infrared drying device. As a result, the functional paint 14 is dried and solidified to complete the highly functional tube twisted yarn 10. The completed twisted tube 10 is wound up by a winding device (not shown).

  The tubular twisted twisted yarn 10 manufactured in this way becomes, for example, a paper woven fabric by weaving it, and is used as a substitute for wallpaper, slippers, hats, seat cover materials, and grass on the tatami surface. However, when the applied functional paint 14 is a water / oil repellent, an acaricide, a negative ion generator, etc., for example, it may be preferable to use it as a substitute for the grass on the tatami mat. When the paint 14 is a deodorant or an antibacterial agent, an application such as slippers is preferable. In addition, when the functional paint 14 is a flame retardant, it is preferably used for wallpaper or the like. In this way, by changing the functional paint 14 according to the application, it is possible to provide a function adapted to various applications without impairing the moisture absorption / release property and flexibility that are the original functions of the twisted twisted yarn 10.

  In the above-described embodiment, the case where the functional paint 14 is dried using the drying means 22 after twisting the paper tape 12 coated with the functional paint 14 to form the twisted twisted yarn 10 is shown. The functional coating 14 may be dried before twisting 12.

  Further, after completing the twisted twisted yarn 10 through the steps S1 to S3, the functional paint may be applied secondarily.

DESCRIPTION OF SYMBOLS 10 ... Twisted pipe 12 ... Paper tape 12a ... End edge 12b on the winding end side edge 14 on the winding start side ... Functional coating 16 ... Application device 18 ... Tape twisting means 22 ... Drying means S1 ... Functional coating application Process S2 ... Paper tape twisting process S3 ... Drying process

Claims (4)

A method for producing a twisted tube thread obtained by twisting a paper tape,
Apply a functional coating from the side edge on the winding end side when twisting to the center of the paper tape in the width direction, at least on the surface of the paper tape that is exposed as the outer surface of the twisted tube. ,
Thereafter, the paper tape is twisted so that the application portion of the functional paint is disposed on the entire exposed surface of the tube twisted yarn.   The functional paint is at least one selected from the group consisting of a water / oil repellent, a reinforced resin, a deodorant, an antibacterial agent, an acaricide, a fungicide, a flame retardant, a far infrared radiation agent, and a negative ion generator. It is comprised by the seed | species or more, The manufacturing method of the cylinder twisted-yarn of Claim 1 characterized by the above-mentioned.   The method for producing a twisted-twisted yarn according to claim 1 or 2, wherein a width of the application portion of the functional paint on the paper tape is 10 to 50% of a total width of the paper tape. A tube twisted yarn produced by the production method according to any one of claims 1 to 3,
At least the outer surface exposed portion of the twisted yarn that is twisted in the cylinder is the application portion of the functional paint,
An unexposed portion inside is a non-applied portion to which a functional paint is not applied.