JP2006322077A - Heat transfer nonwoven fabric and method for producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for producing heat transfer nonwoven fabrics in which many varieties of heat transfer nonwoven fabrics such as carpet and interior can be prepared at a low cost and long heat transfer nonwoven fabric can simply be produced and coloring obtained when heat-transferred with a subliming dye is improved and abrasion resistance is also improved. <P>SOLUTION: An arbitrary design is prepared by a personal computer. A transfer paper 4 is prepared from the design with a printer by using an ink composed of the subliming dye and the transfer paper 4 is superposed on the upper surface of a nonwoven fabric composed of a polyester fiber, having 50-600 g/m<SP>2</SP>basis weight and containing a low-melting point binder fiber and the transfer paper 4 and the nonwoven fabric 10 are heat-pressed under prescribed conditions by a press 20 to heat-transfer the subliming dye of the transfer paper 4 to the nonwoven fabric 10. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a thermal transfer nonwoven fabric in which a sublimation dye is thermally transferred to a nonwoven fabric composed of polyester-containing fibers, and a method for producing the same.

  Conventionally, it is provided that a sublimation dye is thermally transferred to a nonwoven fabric. For example, Patent Document 1 below describes a sublimation transfer dyeing method.

JP 51-149990 A

When printing an arbitrary pattern on the surface of a nonwoven fabric using a sublimation dye, the gravure printing is conventionally performed on a rotary press or the like. Although it can be manufactured, there is a problem in that it is very expensive when manufacturing a uniform product.
In addition, the size of the pattern on the carpet is also restricted by the circumferential length of the rotary press, and although it can be manufactured with a length of 2-3 meters, it is longer, for example, with a long product such as 5-6 meters. There was a problem that the carpet could not be manufactured.

The present invention is provided in view of the above-described problems, and provides a thermal transfer nonwoven fabric having at least the following objects and a method for producing the same.
(1) To be able to produce a uniform product, for example, a thermal transfer nonwoven fabric such as carpet or interior material at low cost.
(2) A small lot is possible.
(3) A long thermal transfer nonwoven fabric can be easily produced.
(4) Improve color development when thermally transferred with sublimation dyes.
(5) Excellent wear resistance.
(6) Making the thickness of the thermal transfer nonwoven fabric uniform.

Therefore, in the thermal transfer nonwoven fabric according to claim 1 of the present invention, the upper surface of the nonwoven fabric 10 to a weight per unit area contain a low-melting binder fiber is composed of polyester fibers of ^{50g / m 2 ~600g / m 2} , by thermal pressurization It is characterized in that the sublimation dye is thermally transferred and the design is printed.

  The thermal transfer nonwoven fabric according to claim 2 is characterized in that the upper surface of the thermal transfer nonwoven fabric 11 is a carpet having a fluorine process and a non-slip process on the back surface.

In the manufacturing method of the thermal transfer nonwoven fabric of Claim 3, while creating arbitrary designs with the personal computer 1, the transfer paper 4 is created with the printer 2 by using this design as an ink and sublimation dye, It consists of polyester fiber, and a fabric weight is 50g. / M ^{2 to} 600 g / m ² , the transfer paper 4 is superimposed on the upper surface of the nonwoven fabric 10 containing the low-melting-point binder fiber, and the transfer paper 4 and the nonwoven fabric 10 are pressed with a press machine 20 at a pressurizing temperature and pressure. Time, pressure,
Pressurization temperature: 150 ° C to 230 ° C
Pressurization time: 30 seconds to 3 minutes Applied pressure: 50 g / cm ^{2 to} 700 g / cm ²
The sublimation dye of the transfer paper 4 is thermally transferred to the non-woven fabric 10 under the conditions described above.

  The method for producing a thermal transfer nonwoven fabric according to claim 4, wherein the low-melting-point binder fiber has a melting point range of 110 ° C to 180 ° C and a content in the nonwoven fabric 10 of 10% by weight to 60% by weight. It is said.

  In the method for producing a thermal transfer nonwoven fabric according to claim 5, fluorine processing is performed on the upper surface of the nonwoven fabric 10 as a pretreatment for thermal transfer, silicon processing is performed on the upper surface of the nonwoven fabric 10 as a post-treatment after thermal transfer, and the rear surface of the nonwoven fabric 10 is processed. Anti-slip processing is performed, and the manufactured thermal transfer nonwoven fabric 11 is used as a carpet.

  In the manufacturing method of the thermal transfer nonwoven fabric of Claim 6, the said press machine 20 is a continuous drum type press, and is heat-pressing the transfer paper 4 and the nonwoven fabric 10 of arbitrary elongate things. .

According to the thermal transfer nonwoven fabric according to claim 1 of the present invention, the upper surface of the nonwoven fabric 10 to a weight per unit area contain a low-melting binder fiber is composed of polyester fibers of ^{50g / m 2 ~600g / m 2} , by thermal pressurization Since the sublimation dye is thermally transferred and the design is printed, it is possible to provide the thermal transfer nonwoven fabric 11 with good color development and excellent wear resistance.

  According to the thermal transfer nonwoven fabric of claim 2, since the upper surface of the thermal transfer nonwoven fabric 11 is a carpet having a fluorine process and a non-slip process on the back surface, the color is good and the wear resistance is excellent. It is possible to provide a low-cost carpet having excellent functions such as water repellency by fluorine processing and anti-slip by non-slip processing.

  According to the method for producing a thermal transfer nonwoven fabric according to claim 3, an arbitrary design can be created by the personal computer 1, the transfer paper 4 is created by the printer 2 using the design, and the transfer paper 4 and the nonwoven fabric 10 are attached to a predetermined pattern. Under the conditions, the press machine 20 is heat-pressed, and the design of the transfer paper 4 is thermally transferred to the upper surface of the nonwoven fabric 10. Therefore, the uniform thermal transfer nonwoven fabric 11 can be produced at a low cost, and even a small lot is possible. . In addition, since the sublimation dye is thermally transferred to the nonwoven fabric 10 by applying heat and pressure, the thermal transfer nonwoven fabric 11 having good color development and excellent wear resistance can be provided.

  According to the method for producing a thermal transfer nonwoven fabric according to claim 4, the low melting point binder fiber has a melting point range of 110 ° C. to 180 ° C., and the content in the nonwoven fabric 10 is 10 wt% to 60 wt%. The fibers of the nonwoven fabric 10 can be thermally fused at the time of heat pressurization to give the nonwoven fabric 10 appropriate rigidity.

  According to the method for producing a thermal transfer nonwoven fabric according to claim 5, fluorine processing is performed on the upper surface of the nonwoven fabric 10 as a pretreatment for thermal transfer, and silicon processing is performed on the upper surface of the nonwoven fabric 10 as a post-treatment after thermal transfer. Anti-slip processing on the back side and the manufactured thermal transfer nonwoven fabric 11 is made into a carpet, so the color is good, wear resistance is excellent, water repellency by fluorine processing, anti-fading by silicon processing, anti-slip processing, etc. Can provide an excellent low cost carpet.

  According to the manufacturing method of the thermal transfer nonwoven fabric of Claim 6, since the said press machine 20 is a continuous drum type press machine and heat-presses the transfer paper 4 and the nonwoven fabric 10 of arbitrary elongate objects, it is endless. It is easy to manufacture a long thermal transfer nonwoven fabric 11 having a long pattern, and a long thermal transfer nonwoven fabric 11 having a length of 5 to 6 meters can be easily manufactured.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the present invention, a transfer paper on which a design is printed with a sublimation dye (disperse dye) is placed on one side of a nonwoven fabric in which a low-melting-point binder fiber is contained in a polyester nonwoven fabric, and a predetermined drum machine or flat press machine is used. By applying heat and pressure under the above conditions, a thermal transfer nonwoven fabric such as carpets and interior materials can be manufactured easily and uniformly at a low cost.

  Hereinafter, the thermal transfer nonwoven fabric and the manufacturing method thereof will be sequentially described with reference to FIG. First, as shown in FIG. 1A, an arbitrary design (design pattern) is created by image creation software or the like installed in a commercially available low-cost personal computer 1. The size of the design including characters and the like can be arbitrarily set after printing, and can be created endlessly in the output direction.

After the symbol is created by the personal computer 1, it is printed by the printer 2 as shown in FIG. The ink of this printer 2 uses a sublimation dye (disperse dye). As shown in FIG. 1C, the transfer paper 4 is printed on the transfer sheet 3 by printing the design (design pattern) created on the personal computer 1. create.
Here, the monochrome or full-color printer 2 may be an ink jet type or a toner type. Although not shown in the drawings, when the transfer paper 4 is endless or a long object of a predetermined size or more, it is wound up by a roller (not shown).

FIG. 2 shows a process diagram by the continuous drum press 20 when the transfer paper 4 and the nonwoven fabric 10 matched to the size of the transfer paper 4 are superposed to perform thermal transfer. Material of the nonwoven fabric 10 is used polyester fibers in order to sublimate the sublimation dyes, as the basis weight of in the range of ^{50g / m 2 ~600g / m 2} , the sublimation dye pattern to the nonwoven fabric 10 of various thicknesses Thermal transfer is possible.
In addition, as a color of the nonwoven fabric 10, since a design is thermally transferred to the surface of the nonwoven fabric 10, white is a preferred example, but the nonwoven fabric 10 having any color may be used. Moreover, when the nonwoven fabric 10 is comprised only with the polyester fiber, of course, the polyester fiber is the main component and other types of fibers may be contained.

Moreover, the low melting-point binder fiber is made to contain in the nonwoven fabric 10, The melting | fusing point range uses the low melting-point binder fiber of 110 to 180 degreeC, and is 10 weight%-60 weight% as content. As a result of trial and error experiments, 20% by weight was a preferred example.
Since the low-melting-point binder fiber is contained in the nonwoven fabric 10, the nonwoven fabric 10 can be given appropriate rigidity by heat-sealing between the fibers of the nonwoven fabric 10 during hot pressing.

  FIG. 2 is a schematic configuration diagram of the press machine 20. The drum 21 has a large diameter that is rotationally driven, a pressure roller 22 that pressurizes the upper surface of the drum 21, and predetermined guide rollers 23 to 27. Belt 28 and the like that are stretched with a tension of 10 mm. Further, heating means for heating the drum 21 and the pressure roller 22 to a predetermined temperature, and driving means for driving the drum 21 and the like at a predetermined rotational speed are well known, and will be omitted.

Here, the conditions for heat-pressing the transfer paper 4 and the nonwoven fabric 10 by the press machine 20 are as follows.
Pressurization temperature: 150 ° C to 230 ° C
Pressurization time: 30 seconds to 3 minutes Applied pressure: 50 g / cm ^{2 to} 700 g / cm ²

The reason why there is a clearance in the pressurization temperature, pressurization time, and pressurization is that differences occur in the basis weight of the nonwoven fabric 10, the amount of the low melting point binder fiber, and the press machine 20. For example, when the basis weight of the nonwoven fabric 10 is close to 50 g / m ² , the pressurizing time by the press machine 20 is close to 30 seconds, and the applied pressure is also close to 50 g / cm ² .
Conversely, if the basis weight of the nonwoven fabric 10 is close to 600 g / m ² , the pressing time will be close to 3 minutes, and the applied pressure will also be close to 700 g / cm ² .

Before the thermal transfer by the press machine 20, the surface of the nonwoven fabric 10 may be subjected to fluorine processing for water repellency, or the surface may be processed to silicon for ultraviolet resistance. Further, a non-slip process may be performed by applying rubber or urethane resin on the back surface of the nonwoven fabric 10.
Of course, these fluorine processing, silicon processing, and anti-slip processing on the surface of the nonwoven fabric 10 may be performed after thermal transfer.

As shown in FIG. 2, the nonwoven fabric 10 and the transfer paper 4 are transported together on the belt 28. Here, the transfer sheet 4 is superposed on the upper surface of the nonwoven fabric 10 with the surface on which the design is printed on the lower surface, and is conveyed to the drum 21 side. The transfer paper 4 and the nonwoven fabric 10 are rotated on the drum 21 while being in close contact with the outer peripheral surface of the drum 21 and the belt 28, and the drum 21 rotates the pressurizing time (the rotation speed of the drum 21), Pressurized at pressure temperature.
Then, the transfer paper 4 is heated and pressed by the pressure roller 22 at the upper part of the drum 21 with the applied pressure, so that the sublimation dye of the design of the transfer paper 4 is sublimated in the nonwoven fabric 10, and the design is the nonwoven fabric. 10 is thermally transferred.

After the design is thermally transferred to the nonwoven fabric 10 by the press machine 20, as shown in FIG. 2, the transfer sheet 3 is peeled off to form the thermal transfer nonwoven fabric 11. FIG. 3 is a plan view of the thermal transfer nonwoven fabric 11. For example, characters “HASHIMA” and a background image (not shown) are transferred to the surface of the nonwoven fabric 10.
As a post-treatment after this thermal transfer process, the surface (upper surface) of the thermal transfer nonwoven fabric 11 is subjected to fluorine processing for water repellency and silicon processing for preventing fading, and the back surface of the thermal transfer nonwoven fabric 11 is made of rubber or urethane for slip prevention. Apply the resin.

FIG. 4 shows an enlarged cross-sectional view of the thermal transfer nonwoven fabric 11 as a carpet formed in this way, and the innumerable dot portions shown on the upper surface or the upper portion of the nonwoven fabric 10 show the pattern portion into which the sublimation dye penetrated. Yes. Further, an anti-slip layer 12 is provided on the lower surface of the nonwoven fabric 10. Further, a flameproofing process may be applied to the entire thermal transfer nonwoven fabric 11.
In addition, although the thermal transfer nonwoven fabric 11 was demonstrated as a carpet here, interior materials other than a carpet can be manufactured similarly.

FIG. 5 shows another example of the press machine 20 and shows a case of the flat press machine 20. This flat press machine 20 produces the thermal transfer nonwoven fabric 11 by putting the nonwoven fabric 10 and the transfer paper 4 between the lower iron 30 and the upper iron 31 and applying heat and pressure under the same conditions as described above.
When manufacturing the thermal transfer nonwoven fabric 11 using the flat type press machine 20, it is limited to the magnitude | size manufactured with the flat type press machine 20 instead of a long thing.

  In addition, as a method for transferring the sublimation dye of the transfer paper 4 to the nonwoven fabric 10, the above-described dry printing method and wet printing methods such as screen printing, roller printing, and ink jet may be applied.

  Further, in the above continuous drum press 20 and flat press 20, when the nonwoven fabric 10 is pressed, a predetermined thickness is set so that the thickness of the thermal transfer nonwoven fabric 11 (carpet or interior material) can be reduced. It can be made uniform and contribute to the stabilization of quality.

  In this way, in the present embodiment, when an arbitrary design is transferred to the nonwoven fabric 10 which is a material such as carpet or interior material, the design is created on the personal computer 1 and printed out to produce the transfer paper 4. Since the transfer paper 4 is heat-pressed and thermally transferred to the nonwoven fabric 10 by the press machine 20, the uniform thermal transfer nonwoven fabric 11 can be made at a low cost and can be produced in a small lot. . In particular, the transfer paper 4 is made by creating a pattern on the personal computer 1 and the thermal transfer nonwoven fabric 11 is formed by the transfer paper 4 and the continuous drum press 20. The endless thermal transfer nonwoven fabric 11 as well as the scale thermal transfer nonwoven fabric 11 can be easily manufactured.

Further, since the sublimation dye is thermally transferred by heat pressing (compression) with the press machine 20, the color on the heat transfer nonwoven fabric 11 side is good, and since it is heat pressing (compression), abrasion resistance is achieved. It is possible to provide a thermal transfer nonwoven fabric 11 that is superior to the above.
In particular, when the thermal transfer nonwoven fabric 11 is a carpet, it is possible to provide a carpet that is excellent in function and low cost due to water repellency by fluorine processing, prevention of fading by silicon processing, and anti-slip layer 12.

(A)-(c) is a figure which shows the process in the case of producing the transfer paper in embodiment of this invention. It is a schematic block diagram of the press machine in the case of forming the thermal transfer nonwoven fabric in embodiment of this invention. It is a top view of the thermal transfer nonwoven fabric after the thermal transfer in embodiment of this invention. It is sectional drawing of the thermal transfer nonwoven fabric after the thermal transfer in embodiment of this invention. It is the schematic of the flat type press in embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 PC 2 Printer 3 Transfer sheet 4 Transfer paper 10 Non-woven fabric 11 Thermal transfer non-woven fabric 20 Press

Claims (6)

The upper surface of the nonwoven fabric basis weight of contain a low-melting binder fiber is composed of polyester fibers of ^{50g / m 2 ~600g / m 2} (10), the symbol sublimation dye is thermally transferred is printed by the thermal pressure Thermal transfer nonwoven fabric characterized by   The thermal transfer nonwoven fabric according to claim 1, wherein the upper surface of the thermal transfer nonwoven fabric (11) is a carpet having a fluorine treatment on its back surface and a non-slip treatment on the back surface. An arbitrary design is created with a personal computer (1), and a transfer paper (4) is created with a printer (2) using the design as an ink as a sublimation dye, and the weight per unit weight is 50 g / m ^{2 to} 600 g / m. ² and overlaying the transfer paper (4) on the upper surface of the nonwoven fabric (10) containing the low melting point binder fiber,
The transfer paper (4) and the nonwoven fabric (10) are pressed with a press machine (20) at a pressing temperature, a pressing time, and a pressing force.
Pressurization temperature: 150 ° C to 230 ° C
Pressurization time: 30 seconds to 3 minutes Applied pressure: 50 g / cm ^{2 to} 700 g / cm ²
A method for producing a thermal transfer nonwoven fabric, wherein the sublimation dye of the transfer paper (4) is thermally transferred to the nonwoven fabric (10) under the conditions described above.   4. The thermal transfer nonwoven fabric according to claim 3, wherein the low melting point binder fiber has a melting point range of 110 ° C. to 180 ° C. and a content in the nonwoven fabric (10) of 10 wt% to 60 wt%. Production method.   Fluorine processing is performed on the upper surface of the nonwoven fabric (10) as a pretreatment for thermal transfer, silicon processing is performed on the upper surface of the nonwoven fabric (10) as a post-treatment after thermal transfer, and anti-slip processing is performed on the back surface of the nonwoven fabric (10). The method for producing a thermal transfer nonwoven fabric according to claim 3 or 4, wherein the thermal transfer nonwoven fabric (11) is a carpet. The said press machine (20) is a continuous drum type press machine, and heat-presses the transfer paper (4) and nonwoven fabric (10) of arbitrary long things, The Claims 3-5 characterized by the above-mentioned. The manufacturing method of the thermal transfer nonwoven fabric as described in 2.

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