Cloth processing device

Abstract

To improve texture of a cloth effectively.SOLUTION: A cloth processing device 100 includes: a transport part 10 configured to transport a cloth F in a transport direction A; a support part 21 configured to support the cloth F; a liquid jet part 1 configured to jet a liquid 3 to the cloth F supported by the support part 21; and an adjustment part 50 configured to make adjustment so that the liquid 3 jetted from the liquid jet part 1 as continuous flow 3a collides with the cloth F in a state of droplets 3b. Forming the cloth processing device 100 in the structure enables effective improvement of texture of the cloth F.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a fabric treating device. [Background technology]

[0002] Conventionally, various treatments have been performed on fabrics to improve their texture. For example, Patent Document 1 discloses an airflow texture treatment method in which an airflow is used to adjust the texture, such as softness, of a printed fabric. The airflow texture treatment method disclosed in Patent Document 1 involves spraying water or steam into an airflow, spraying the airflow onto the fabric from a treatment fluid spraying unit to impart a moistening effect to the fabric, and then applying a dry airflow to the fabric to dry it. The airflow texture treatment method disclosed in Patent Document 1 imparts fine fluff (peach finish), drapability, and a slimy feel to the fabric surface by repeatedly impacting the fabric with an airflow. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 7-133578 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the method of improving the texture of a fabric by applying an airflow to the fabric as described in Patent Document 1, it is difficult to apply a strong impact to the fabric. Therefore, it is difficult to sufficiently improve the texture of the fabric, and a long time is required to sufficiently improve the texture of the fabric. As such, it is difficult to effectively improve the texture of the fabric with conventional methods for improving the texture of the fabric. [Means for solving the problem]

[0005] The fabric processing device of the present invention, which solves the above problem, is characterized by comprising a conveying section that conveys fabric in a conveying direction, a support section that supports the fabric, a liquid injection section that injects liquid onto the fabric supported by the support section, and an adjustment section that adjusts the liquid injected as a continuous stream from the liquid injection section so that it collides with the fabric in the form of droplets. [Brief explanation of the drawings]

[0006] [Figure 1] 1 is a schematic diagram showing a fabric treating device according to a first embodiment. [Figure 2] FIG. 2 is a schematic diagram showing a portion of the fabric treatment device of FIG. 1. [Figure 3] FIG. 2 is a schematic diagram showing a liquid injection unit of the fabric treating apparatus of FIG. 1. [Figure 4] FIG. 5 is a schematic diagram showing a fabric treating device according to a second embodiment. [Figure 5] FIG. 10 is a schematic diagram showing a fabric treating device according to a third embodiment. [Figure 6] FIG. 6 is a schematic plan view showing a part of the fabric processing apparatus of FIG. 5. [Figure 7] FIG. 10 is a schematic diagram showing a fabric treating device of Example 4. [Figure 8] FIG. 8 is a schematic plan view showing a part of the fabric processing apparatus of FIG. 7. [Figure 9] FIG. 10 is a schematic plan view showing a part of a fabric treating apparatus according to a fifth embodiment. [Figure 10] 10 is a schematic diagram showing a state in which a liquid is discharged onto a fabric using the fabric processing apparatus of FIG. 9. [Figure 11] FIG. 10 is a schematic diagram showing a part of a fabric treating apparatus according to a sixth embodiment. [Figure 12] FIG. 12 is a schematic plan view showing a part of the fabric processing apparatus of FIG. [Figure 13] 12 is a schematic diagram showing a state in which a liquid is discharged onto a fabric using the fabric processing apparatus of FIG. 11. [Figure 14] FIG. 10 is a schematic diagram showing a fabric treatment device of Example 7. DETAILED DESCRIPTION OF THE INVENTION

[0007] First, the present invention will be briefly described. In order to solve the above problem, a first aspect of the fabric processing device of the present invention is characterized by comprising a conveying section that conveys fabric in a conveying direction, a support section that supports the fabric, a liquid injection section that injects liquid onto the fabric supported by the support section, and an adjustment section that adjusts the liquid injected as a continuous stream from the liquid injection section so that it collides with the fabric in the form of droplets.

[0008] According to this aspect, the liquid sprayed as a continuous stream from the liquid spraying unit is adjusted so that it impacts the fabric in the form of droplets. Therefore, the fabric is treated in a manner that allows the liquid sprayed as a continuous stream to impact the fabric in the form of droplets, thereby applying a strong impact to the fabric. As a result, the texture of the fabric can be effectively improved.

[0009] A second aspect of the fabric processing device of the present invention is characterized in that, in the first aspect, the adjustment unit is a distance adjustment unit that adjusts the distance between the liquid injection unit and the fabric so that the liquid collides with the fabric in the form of droplets.

[0010] According to this aspect, the distance between the liquid ejection unit and the fabric is adjusted so that the liquid impacts the fabric in the form of droplets, and therefore, the liquid ejected as a continuous stream from the liquid ejection unit can impact the fabric in the form of droplets without complicating the configuration of the liquid ejection unit.

[0011] The fabric processing device of a third aspect of the present invention is the device of the second aspect, further comprising a holding unit that holds the liquid spray unit, and the interval adjustment unit is connected to the holding unit.

[0012] According to this aspect, the holding part is provided to hold the liquid ejection part and to which the gap adjustment part is connected. Therefore, for example, when it is desired to move the liquid ejection part, the liquid ejection part can be easily moved by moving the holding part.

[0013] A fourth aspect of the fabric processing device of the present invention is characterized in that, in the third aspect, the spacing adjustment unit has a fixed unit and a movable unit that can change the position of the liquid injection unit and the fabric in the spacing direction relative to the fixed unit, and the holding unit is connected to the movable unit.

[0014] According to this aspect, the gap adjusting unit has a fixed part and a movable part, and the holding part is connected to the movable part. With this configuration, the liquid ejecting unit can be easily moved relative to the fabric.

[0015] The fabric processing device of a fifth aspect of the present invention is the fabric processing device of the third aspect, further comprising a movement mechanism that moves the holding part back and forth in a direction intersecting the conveying direction.

[0016] According to this aspect, the liquid ejection device includes a moving mechanism that reciprocates the holding unit in a direction intersecting the conveyance direction. With this configuration, it is possible to eject liquid across the entire width of the fabric using a small liquid ejection unit and holding unit.

[0017] A sixth aspect of the fabric processing device of the present invention is characterized in that, in the first aspect, the adjustment unit is a dropletization distance adjustment unit that adjusts a dropletization distance, which is the distance from the liquid injection unit until the liquid sprayed as the continuous stream becomes the droplets, so that the liquid collides with the fabric in the droplet state.

[0018] According to this aspect, the droplet formation distance is adjusted so that the liquid impacts the fabric in the form of droplets, and therefore the liquid sprayed as a continuous stream from the liquid spray unit can impact the fabric in the form of droplets without changing the distance between the droplet spray unit and the fabric.

[0019] The seventh aspect of the fabric processing device of the present invention is characterized in that, in any one of the first to sixth aspects, the liquid injection section injects the liquid into a continuous flow at an injection speed of 30 m / s or more.

[0020] According to this aspect, the liquid is sprayed in a continuous stream at a spray velocity of 30 m / s or more. That is, the liquid is caused to collide with the fabric at a high spray velocity of 30 m / s or more, and a strong impact is applied to the fabric. This makes it possible to particularly effectively improve the texture of the fabric.

[0021] The fabric processing device of an eighth aspect of the present invention is the fabric processing device of the seventh aspect, characterized in that the liquid injection unit injects the liquid into a continuous flow at an injection speed of 500 m / s or less.

[0022] According to this aspect, the liquid is sprayed in a continuous stream at a spray speed of 500 m / s or less. If the spray speed exceeds 500 m / s, the fabric may be damaged, but in this aspect, the texture of the fabric can be effectively improved without damaging the fabric.

[0023] A ninth aspect of the fabric processing device of the present invention is characterized in that, in any one of the first to sixth aspects, the support unit has a support surface that supports the fabric, and the liquid injection unit is positioned opposite the support surface.

[0024] According to this aspect, the support unit has a support surface that supports the fabric, and the liquid spray unit is disposed in a position facing the support surface, making it possible to easily form a configuration that can effectively improve the texture of the fabric.

[0025] A tenth aspect of the present invention is the fabric processing device of the ninth aspect, wherein the support surface is a convex curved surface that protrudes toward the liquid ejecting unit.

[0026] According to this aspect, the support surface is a convex curved surface that protrudes toward the liquid ejection unit. With this configuration, the fabric can be firmly supported by applying tension to the convex curved surface, and the liquid can be ejected appropriately onto the fabric.

[0027] The fabric processing device of an eleventh aspect of the present invention is the fabric processing device of the ninth aspect, characterized in that the support surface is flat.

[0028] According to this aspect, the support surface is flat. With this configuration, a wide area of ​​the fabric can be supported on the support surface, and the liquid can be sprayed appropriately onto the wide area of ​​the fabric.

[0029] A twelfth aspect of the present invention is the fabric processing device of the eleventh aspect, characterized in that the normal to the plane of the support surface forms an angle of 0° or more and 45° or less with respect to a horizontal plane.

[0030] According to this aspect, the normal to the plane of the support surface forms an angle of 0° to 45° with respect to the horizontal plane. This configuration can prevent the liquid sprayed from the liquid spray unit from dripping onto the liquid spray unit, and can also prevent the liquid that bounces off the support surface from adhering to the liquid spray unit, thereby preventing poor spraying from occurring at the liquid spray unit.

[0031] The 13th aspect of the fabric processing device of the present invention is characterized in that, in any one of the first to sixth aspects, the liquid injection unit has a nozzle unit having at least one injection port for injecting the liquid, a liquid transport unit for transporting the liquid to the injection port, and a pressurizing unit for pressurizing the liquid in the liquid transport unit.

[0032] According to this aspect, the liquid ejection unit includes a nozzle unit having at least one ejection port for ejecting the liquid, a liquid transport unit for transporting the liquid to the ejection port, and a pressurizing unit for pressurizing the liquid in the liquid transport unit. This configuration makes it possible to suitably form a liquid ejection unit that ejects the liquid as a continuous stream and causes the liquid ejected as a continuous stream to collide with the fabric in the form of droplets.

[0033] The fabric processing device of the 14th aspect of the present invention is characterized in that, in any one of the first to sixth aspects, it is provided with a control unit that controls the amount of liquid sprayed from the liquid spray unit.

[0034] According to this aspect, the control unit is provided to control the amount of liquid ejected from the liquid ejection unit, so that the liquid can be automatically ejected from the liquid ejection unit in a desired amount.

[0035] A 15th aspect of the fabric processing device of the present invention is characterized in that, in any one of the first to sixth aspects, the conveying section has a drive roller that rotates to convey the fabric in the conveying direction.

[0036] According to this aspect, the conveying section has a drive roller that rotates to convey the fabric in the conveying direction. With this configuration, the conveying section that conveys the fabric in the conveying direction can be suitably formed.

[0037] The 16th aspect of the present invention is a fabric processing device according to the 13th aspect, characterized in that the liquid injection unit has a plurality of injection ports provided throughout the entire direction intersecting the conveying direction of the fabric, and is configured to be able to move the liquid injection unit in a direction intersecting the conveying direction while the fabric is being conveyed.

[0038] According to this aspect, the liquid spray unit has a plurality of spray nozzles arranged over the entire direction intersecting the conveyance direction of the fabric, and is configured to be movable in the direction intersecting the conveyance direction while the fabric is being conveyed, thereby enabling the liquid to be sprayed particularly precisely onto the fabric.

[0039] [Example 1] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. First, an overview of a fabric processing device 100A according to Example 1 of the present invention will be described with reference to Fig. 1 as a fabric processing device 100. The fabric processing device 100A shown in Fig. 1 includes a conveying unit 10 that conveys fabric F in a conveying direction A, a support unit 21 that supports fabric F, and a liquid spraying unit 1 that sprays liquid 3 onto fabric F supported by the support unit 21.

[0040] The conveying section 10 has a setting shaft 11 on which a roll of fabric F can be set, and a winding shaft 12 on which the fabric F conveyed in the conveying direction A can be wound into a roll. The setting shaft 11 and the winding shaft 12 are connected to the conveying control section 13 via a cable 14, and are both configured to be rotatable in a rotation direction C under the control of the conveying control section 13. The conveying control section 13 controls the rotation speed of the winding shaft 12 to be faster than the rotation speed of the setting shaft 11 when conveying the fabric F, thereby making it possible to apply a desired tension to the fabric F conveyed in the conveying direction A from the setting shaft 11 to the winding shaft 12.

[0041] From another perspective, the conveying section 10 of the fabric processing apparatus 100A of this embodiment has a set shaft 11 and a winding shaft 12 as drive rollers that rotate to convey the fabric F in the conveying direction A. With this configuration, the conveying section 10 that conveys the fabric F in the conveying direction A can be suitably formed.

[0042] The support portion 21A of this embodiment as the support portion 21 has a support surface 23 that supports the fabric F, and the support surface 23 is a convexly curved surface that protrudes toward the liquid spraying unit 1. With this configuration, the fabric F can be firmly supported without gaps by applying tension to the convexly curved surface, and the liquid 3 can be suitably sprayed onto the fabric F. Note that "the support surface 23 is a convexly curved surface that protrudes toward the liquid spraying unit 1" specifically means that "the point of contact between the support surface 23 and the straight line extending from the liquid spraying unit 1 in the spraying direction B and the surrounding area thereof is a convexly curved surface that protrudes toward the liquid spraying unit 1." Therefore, the portion other than the point of contact and the surrounding area does not have to be a convexly curved surface.

[0043] Here, the support part 21A in this embodiment is made of stainless steel. By constructing the support part 21 from a hard material that is resistant to rust, such as stainless steel, it is possible to prevent corrosion and deformation caused by the liquid 3 sprayed from the liquid spray part 1. By preventing corrosion and deformation of the support part 21, it is possible to prevent attenuation of the impact pressure when the liquid 3 sprayed from the liquid spray part 1 hits the fabric F, and it is possible to efficiently apply an impact to the fabric F to improve the texture.

[0044] The liquid jetting unit 1 is disposed at a position facing the support surface 23. This allows for a simple configuration that can effectively improve the texture of the fabric F. This configuration allows the liquid jetting unit 1 to jet the liquid 3 substantially perpendicular to the support surface 23. By jetting the liquid 3 from the liquid jetting unit 1 perpendicular to the support surface 23, an impact can be applied to the fabric F to efficiently improve the texture. In this embodiment, the liquid jetting unit 1 jets the liquid 3 substantially perpendicular to the support surface 23, but the configuration is not limited to this. However, it is preferable to jet the liquid 3 from the liquid jetting unit 1 at an angle of 0° or more and 45° or less with respect to the normal to the support surface 23.

[0045] Furthermore, in the fabric processing apparatus 100A of this embodiment, the liquid jetting unit 1 jets the liquid 3 from the jetting port 4a of the nozzle unit 4 toward the fabric F in the form of a continuous stream 3a, and the liquid 3 jetted from the liquid jetting unit 1 as a continuous stream 3a becomes droplets 3b, which collide with the fabric F. In order to cause the liquid 3 jetted from the liquid jetting unit 1 as a continuous stream 3a to collide with the fabric F in the form of droplets 3b, in other words, to set the distance from the jetting port 4a to the fabric F to a desired distance equal to or greater than the dropletization distance, which is the distance it takes for the continuous stream 3a to break down into droplets 3b, the fabric processing apparatus 100A of this embodiment is therefore able to process the fabric F in a manner that can impart a strong impact to the fabric F by causing the liquid 3 jetted as a continuous stream 3a to collide with the fabric F in the form of droplets 3b. Therefore, the fabric treating apparatus 100A of this embodiment can effectively improve the texture of the fabric F.

[0046] Here, the adjustment unit 50A of this embodiment, which serves as the adjustment unit 50 that adjusts the liquid 3 sprayed as a continuous stream 3a from the liquid spray unit 1 so that it collides with the fabric F in the form of droplets 3b, is a spacing adjustment unit that adjusts the distance in the spacing direction G, which is the distance between the liquid spray unit 1 and the fabric F, so that the liquid 3 collides with the fabric F in the form of droplets 3b. Methods for adjusting the liquid 3 so that it collides with the fabric F in the form of droplets 3b include a method of adjusting the spacing between the liquid spray unit 1 and the fabric F and a method of adjusting the distance until the liquid self-forms into droplets. Of these, by using a configuration that adjusts the spacing between the liquid spray unit 1 and the fabric F, as in the adjustment unit 50A of this embodiment, the liquid 3 sprayed as a continuous stream 3a from the liquid spray unit 1 can be caused to collide with the fabric F in the form of droplets 3b without complicating the configuration of the liquid spray unit 1. Strictly speaking, "adjusting the distance between the liquid spray unit 1 and the fabric F" means "adjusting the distance in the spray direction B between the spray nozzle 4a provided in the liquid spray unit 1 and the fabric F."

[0047] 1, the fabric processing apparatus 100A of this embodiment includes a holding unit 2 that holds the nozzle unit 4 that constitutes the liquid spraying unit 1. An adjustment unit 50A serving as a gap adjustment unit is connected to the holding unit 2. Therefore, in the fabric processing apparatus 100A of this embodiment, when it is desired to move the nozzle unit 4 of the liquid spraying unit 1, for example, the nozzle unit 4 can be easily moved by moving the holding unit 2.

[0048] 1, the adjustment unit 50A of this embodiment has a fixed part 51A and a movable part 52A that can change the position in the spacing direction G relative to the fixed part 51A. The holding unit 2 is connected to the movable part 52A. With this configuration, the liquid ejection unit 1 can be easily moved relative to the fabric F.

[0049] The fabric processing device 100A of this embodiment has a distance control unit 53, and the fixed unit 51A of this embodiment has a base 51a and a shaft 51b extending along the distance direction G. The fixed unit 51A is connected to the distance control unit 53 by a cable 54, and the movable unit 52A is configured to be movable along the shaft 51b in the distance direction G relative to the base 51a under the control of the distance control unit 53.

[0050] Next, the configuration of the liquid ejection unit 1 will be described in more detail with reference to FIGS. 2 and 3. As shown in FIG. 2, the liquid ejection unit 1 of this embodiment has a nozzle unit 4 in which a plurality of ejection nozzles 4a for the liquid 3 are arranged in a line across the entire width direction, which is a direction intersecting the conveyance direction A of the fabric F. The nozzle unit 4 is provided at the tip of the holding unit 2. The nozzle unit 4 is formed with a reinforcing plate (not shown) across the entire width direction, which has holes corresponding to the positions of the ejection nozzles 4a and having a diameter sufficiently larger than that of the ejection nozzles 4a, thereby preventing deformation of the nozzle unit 4. However, the configuration of the holding unit 2 is not particularly limited. For example, instead of a line head as in this embodiment, the holding unit 2 may be provided as a carriage that can move back and forth in the width direction, and the holding unit 2 may be moved back and forth in the width direction to eject the liquid 3 across the entire width direction of the fabric F.

[0051] 3, the liquid ejection unit 1 of this embodiment includes a holding unit 2 provided with a nozzle unit 4 having at least one ejection port 4a for ejecting the liquid 3, a liquid transport unit 7 which is a tube for transporting the liquid 3 to the ejection port 4a, and a pressurizing unit 6 which pressurizes the liquid 3 in the liquid transport unit 7. With this configuration, it is possible to suitably form the liquid ejection unit 1 which ejects the liquid 3 as a continuous stream 3a and causes the liquid 3 ejected as the continuous stream 3a to collide with the fabric F in the form of droplets 3b.

[0052] As described above, the liquid ejection unit 1 of this embodiment is characterized by being a liquid ejection device in which a continuous stream 3a of liquid 3, which is continuously ejected in an ejection direction B from a plurality of ejection ports 4a provided in the holding unit 2, turns into droplets 3b, and causes the droplets 3b to collide with the target object, the fabric F. Water is preferably used as the liquid 3, but any solution can also be used without particular limitation, such as an aqueous solution containing various solvents and additives using water as a solvent, or a volatile organic solvent.

[0053] Here, the liquid transport unit 7, which serves as a liquid transfer flow path connecting the liquid storage unit 8 to the holding unit 2, can be made of a soft resin material or the like to improve handleability. The pressurizing unit 6 is driven under the control of the control unit 5, which is connected via a control signal line 9, and transfers the liquid 3 at a predetermined pressure or a predetermined flow rate. The pressure or flow rate can be changed as desired by the user inputting instructions into the control unit 5. In other words, the control unit 5 can control the amount of liquid 3 sprayed from the liquid spray unit 1. This allows the liquid 3 to be automatically sprayed from the liquid spray unit 1 at a desired amount.

[0054] Below, we will explain in detail the preferred spraying conditions for effectively improving the texture of fabric. In the evaluations below, using the fabric processing device 100A of this embodiment, liquid 3 was sprayed from the liquid spraying unit 1 onto fabric F having a vertical length of 50 mm and a horizontal length of 25 mm. Then, one vertical end of the fabric F was sandwiched between resin plates by 5 mm and set horizontally. The change in texture of the fabric F was evaluated based on the hanging length d in mm at a position 30 mm horizontally away from the resin plates. The larger the hanging length d, the greater the change in texture, i.e., the better the texture. The results are shown in Table 1 below.

[0055] [Table 1]

[0056] As shown in Table 1, in Fabric F onto which Liquid 3 was sprayed at a spray speed of 20 m / s, the drooping length d was not significantly different from that of Fabric F in its initial state before Liquid 3 was sprayed, and there was little change in the texture of Fabric F. On the other hand, in Fabric F onto which Liquid 3 was sprayed at spray speeds of 30 m / s and 44 m / s, the drooping length d was clearly longer than that of Fabric F in its initial state, and there was a significant change in the texture.

[0057] As described above, in the fabric processing apparatus 100A of this embodiment, the liquid 3 sprayed as a continuous stream 3a is caused to collide with the fabric F in the form of droplets 3b, and it is preferable to spray the liquid 3 at a spray speed of 30 m / s or more in order to change the texture of the fabric F. That is, in order to change the texture of the fabric F, it is preferable to process the fabric by a method that can impart a strong impact to the fabric F by spraying the liquid 3 as a continuous stream 3a in the form of droplets 3b at a high spray speed of 30 m / s or more and causing the liquid 3 to collide with the fabric F in the form of droplets 3b. This is because if the spray speed is less than 30 m / s, it may be difficult to impart a strong enough impact to the fabric F to change the texture of the fabric F, i.e., the processing may be unsuccessful.

[0058] The diameter of the nozzle 4a in the liquid spraying unit 1 of the fabric processing apparatus 100A of this embodiment is 0.12 mm. Table 2 below shows the correspondence between the spray speed, the pressure applied by the pressure applying unit 6, the droplet formation distance (the distance from the nozzle 4a until the continuous stream 3a becomes droplets 3b), and the evaluation results of the change in texture when the liquid spraying unit 1 of this embodiment with the nozzle 4a having a diameter of 0.12 mm is used.

[0059] [Table 2]

[0060] As described above, by setting the spray speed to 30 m / s or more, it is possible to change the texture of the fabric F. On the other hand, if the pressure applied by the pressure applying unit 6 is set to more than 1.5 MPa, for example, when an image or the like is recorded with ink on the fabric F, the surface on which the image is formed may become rough. When the diameter of the spray nozzle 4a is 0.12 mm and the pressure applied by the pressure applying unit 6 is 1.5 MPa, the spray speed is 50 m / s, as shown in Table 2 above.

[0061] The spray speed required to change the texture of fabric F depends on the diameter of the nozzle 4a. The smaller the diameter of the nozzle 4a, the faster the spray speed required to change the texture of fabric F. For example, when a nozzle 4a with a diameter of 0.025 mm is used, the pressurized pressure is 17 MPa and the spray speed is 180 m / s, and when a nozzle 4a with a diameter of 0.005 mm is used, the pressurized pressure is 150 MPa and the spray speed is 500 m / s. Table 3 below shows the relationship between the diameter of the nozzle 4a, the pressurized pressure, the spray speed, and the flow rate of liquid 3.

[0062] [Table 3]

[0063] For the reasons mentioned above, it is preferable that the liquid ejection unit 1 ejects the liquid 3 in a continuous stream at an ejection speed of 500 m / s or less. If the ejection speed exceeds 500 m / s, there is a risk of damaging the fabric F. By setting the ejection speed to 500 m / s or less, the ejection conditions can be adjusted to effectively improve the texture of the fabric F without damaging the fabric F. Note that damage to the fabric F includes not only damage to the fabric F itself, but also damage to printed images formed on the fabric F.

[0064] The diameter of the injection port 4a is preferably 0.005 mm or more and 0.12 mm or less, because such a diameter of the injection port 4a allows the liquid 3 to be suitably injected as a continuous stream and the liquid 3 to collide with the fabric F in the form of droplets 3b.

[0065] Furthermore, the pressure applied by the pressure applying unit 6 is preferably 0.5 MPa or more and 150 MPa or less. By applying a pressure by the pressure applying unit 6 of 0.5 MPa or more and 150 MPa or less, the texture of the fabric F can be effectively improved without damaging the fabric F.

[0066] [Example 2] A fabric processing device 100B of Example 2 as the fabric processing device 100 will be described below with reference to FIG. 4. FIG. 4 is a view corresponding to FIG. 1 showing the fabric processing device 100A of Example 1. The fabric processing device 100B of this example is similar to the fabric processing device 100A of Example 1 except for the configuration described below. Therefore, the fabric processing device 100B of this example has the same features as the fabric processing device 100A of Example 1 except for the points described below. Therefore, in FIG. 4, components common to Example 1 above are indicated by the same reference numerals, and detailed description thereof will be omitted.

[0067] As described above, in the fabric processing device 100A of Example 1, the support portion 21 that supports the fabric F is configured with only a convex curved support surface 23 that protrudes toward the liquid spraying unit 1. On the other hand, the support portion 21B of the fabric processing device 100B of this example is provided between the driven roller 15 and the driven roller 16, as shown in Fig. 4, and has, as the support surface 23, a convex curved portion 23a that protrudes toward the liquid spraying unit 1 and a flat portion 23b. The winding shaft 12 of this example rotates in the rotation direction D as the fabric F is transported.

[0068] In other words, the support surface 23 of the support unit 21B of the fabric processing apparatus 100E of this embodiment is a flat surface having a flat portion 23b. By configuring the support surface 23 as a flat surface, a wide area of ​​the fabric F can be supported on the support surface 23, and the liquid 3 can be sprayed appropriately over a wide area of ​​the fabric F. Specifically, "the support surface 23 is flat" means that "the point of contact between the support surface 23 and the support surface 23, a straight line extending from the liquid spray unit 1 in the spraying direction B, and the surrounding area are flat." Therefore, as in this embodiment, the flat portion 23b may have curved portions 23a at both ends. Incidentally, by providing curved portions 23a at both ends of the flat portion 23b, damage to the fabric F due to rubbing against the corners of the support surface 23 can be prevented. Although the spraying direction B is horizontal in this embodiment, the spraying direction B does not have to be horizontal.

[0069] In the fabric processing device 100B of this embodiment, the support member 21B is arranged so that the flat portion 23b is approximately perpendicular to the spraying direction B. However, this configuration is not limited to this. For example, a support member 21C having the same shape as the support member 21B of this embodiment may be arranged so that the angle of the flat portion 23b with respect to the spraying direction B is 45°. In this manner, it is preferable that the normal to the plane corresponding to the flat portion 23b on the support surface 23 forms an angle of 0° or more and 45° or less with respect to the horizontal plane. This configuration can prevent the liquid 3 sprayed from the liquid spraying unit 1 from dripping onto the liquid spraying unit 1 and also prevent the liquid 3 rebounding from the support surface 23 from adhering to the liquid spraying unit 1, thereby preventing poor spraying of the liquid spraying unit 1.

[0070] Here, the adjustment unit 50B of the fabric processing device 100B of this embodiment has a distance control unit 53, a fixed unit 51B connected to the distance control unit 53 via a cable 54, and a movable unit 52B. The movable unit 52B of this embodiment has a first connection unit 52a connected to the holder 2, and a second connection unit 52b connected to the first connection unit 52a and movable in a movement direction H along the spraying direction B relative to the fixed unit 51B. The movable unit 52B is configured to be movable in the movement direction H relative to the fixed unit 51B under the control of the distance control unit 53. The movement direction H in this embodiment corresponds to the distance direction between the liquid spraying unit 1 and the fabric F.

[0071] [Example 3] A fabric processing device 100C of Example 3 as a fabric processing device 100 will be described below with reference to Figures 5 and 6. Of these, Figure 5 is a view corresponding to Figure 1 showing the fabric processing device 100A of Example 1. The fabric processing device 100C of this example is similar to the fabric processing device 100 of Examples 1 and 2 except for the configuration described below. Therefore, the fabric processing device 100C of this example has similar features to the fabric processing device 100 of Examples 1 and 2 except for the points described below. Therefore, in Figures 5 and 6, components common to Examples 1 and 2 above are indicated by the same reference numerals, and detailed description thereof will be omitted.

[0072] As described above, the fabric processing apparatus 100A of Example 1 was provided with the support portion 21A, which supported the fabric F, in which only the support surface 23 was a convex curved surface protruding toward the liquid spraying unit 1. The support portion 21A was stationary. On the other hand, the support portion 21C of this example was cylindrical as shown in FIGS. 5 and 6 and was configured to be rotatable in the rotation direction D in accordance with the conveyance of the fabric F, based on the rotation axis 22 shown in FIG. 6, which is in the same direction as the rotation axes of the set shaft 11 and the winding shaft 12. In this way, by making the support portion 21 a cylindrical rotating body, friction with the fabric F can be reduced compared to a stationary support portion 21, and damage to the fabric F due to friction can be suppressed.

[0073] As described above, the nozzle unit 4 of the fabric processing device 100 in Examples 1 and 2 was a line head in which a plurality of injection ports 4a were arranged in a line across the entire width direction. On the other hand, the nozzle unit 4 in this example is a so-called serial-type head that can reciprocate in a reciprocating direction I intersecting with the conveying direction A via the holding unit 2, as shown in FIG. 6 . The adjustment unit 50C in this example includes a fixed unit 51C connected to the interval control unit 53 via a cable 54, and a movable unit 52C. The movable unit 52C also includes a third connection unit 52c connected to the holding unit 2, a shaft unit 52d extending in the interval direction G, and a fourth connection unit 52e attached to the fixed unit 51C so as to be movable in the reciprocating direction I. In addition, the entire movable part 52C is configured to be movable relative to the fixed part 51C in the reciprocating direction I under the control of the control unit 5, and the third connecting part 52c is moved in the spacing direction G relative to the fourth connecting part 52e along the axis part 52d under the control of the spacing control unit 53, thereby making it possible to adjust the spacing between the liquid injection part 1 and the fabric F.

[0074] In this way, the fabric processing device 100C of this embodiment is capable of moving the holding unit 2 back and forth in the reciprocating direction I that intersects with the conveying direction A, and the adjustment unit 50C of this embodiment also serves as a movement mechanism that moves the holding unit 2 back and forth in the reciprocating direction I. By configuring the fabric processing device 100C of this embodiment with a movement mechanism that moves the holding unit 2 back and forth in the direction that intersects with the conveying direction A, it is possible to use a small liquid spraying unit 1 and holding unit 2 to spray the liquid 3 over the entire width of the fabric F.

[0075] [Example 4] A fabric processing device 100D of Example 4 as a fabric processing device 100 will be described below with reference to Figures 7 and 8. Of these, Figure 7 is a view corresponding to Figure 5 of the fabric processing device 100C of Example 3, and Figure 8 is a view corresponding to Figure 6 of the fabric processing device 100C of Example 3. The fabric processing device 100D of this example is similar to the fabric processing device 100 of Examples 1 to 3 except for the configuration described below. Therefore, the fabric processing device 100D of this example has similar features to the fabric processing device 100 of Examples 1 to 3 except for the points described below. Therefore, in Figures 7 and 8, components common to Examples 1 to 3 are indicated by the same reference numerals, and detailed description thereof will be omitted.

[0076] As shown in FIG. 7, the fabric processing apparatus 100D of this embodiment has the same configuration as the fabric processing apparatus 100B of Example 2, except for the configurations of the liquid spraying unit 1 and the adjusting unit 50. Specifically, as shown in FIG. 8, the nozzle unit 4 in the liquid spraying unit 1 of this embodiment is a so-called serial-type head that can reciprocate via the holding unit 2 in a reciprocating direction I intersecting with the conveying direction A, similar to the nozzle unit 4 of the fabric processing apparatus 100C of Example 3. The adjusting unit 50D of this embodiment includes a fixed unit 51D connected to the interval control unit 53 via a cable 54, and a movable unit 52D. The movable unit 52D also includes a fifth connecting unit 52f connected to the holding unit 2, a sixth connecting unit 52g connected to the fifth connecting unit 52f, and a seventh connecting unit 52h connected to the sixth connecting unit 52g and attached so as to be movable in the moving direction H relative to the fixed unit 51D. In addition, the entire movable part 52D is configured to be movable relative to the fixed part 51D in the reciprocating direction I under the control of the control unit 5, and the sixth connection part 52g moves relative to the seventh connection part 52h along the movement direction H under the control of the spacing control unit 53, making it possible to adjust the spacing between the liquid injection part 1 and the fabric F.

[0077] [Example 5] A fabric processing device 100E of Example 5 as a fabric processing device 100 will be described below with reference to Figures 9 and 10. Of these, Figure 9 is a view corresponding to Figure 6 showing the fabric processing device 100C of Example 3. The fabric processing device 100E of this example is similar to the fabric processing device 100 of Examples 1 to 4 except for the configuration described below. Therefore, the fabric processing device 100E of this example has similar features to the fabric processing device 100 of Examples 1 to 4 except for the points described below. Therefore, in Figures 9 and 10, components common to Examples 1 to 4 are indicated by the same reference numerals, and detailed description thereof will be omitted.

[0078] 9, the fabric processing apparatus 100E of this embodiment has a nozzle unit 4 that is a line head having a plurality of injection ports 4a arranged in a line across the entire width direction, similar to the fabric processing apparatuses 100 of Examples 1 and 2. In addition, the fabric processing apparatus 100E of this embodiment has a side view that is substantially similar to the fabric processing apparatus 100C of Example 3 shown in FIG.

[0079] 9, the adjustment unit 50E of this embodiment includes a fixed unit 51E connected to the interval control unit 53 via a cable 54, and a movable unit 52E. The movable unit 52E also includes an eighth connection unit 52i connected to the holding unit 2, a shaft unit 52j extending in the interval direction G, and a ninth connection unit 52k to which the shaft unit 52j is connected and which is attached so as to be movable in the reciprocating direction I relative to the fixed unit 51E.

[0080] That is, the liquid spraying unit 1 of the fabric processing apparatus 100E of this embodiment has a plurality of spray nozzles 4a provided over the entire reciprocating direction I, which corresponds to the width direction intersecting with the conveying direction A of the fabric F. The liquid spraying unit 1 is configured to be movable so as to vibrate frequently in the reciprocating direction I while the fabric F is being conveyed. Here, FIG. 10 shows the state when the liquid 3 is sprayed onto the fabric F using the fabric processing apparatus 100E of this embodiment. In this way, the fabric processing apparatus 100E of this embodiment is configured to be able to spray the liquid 3 onto the fabric F particularly precisely.

[0081] [Example 6] A fabric processing device 100F of Example 6 as a fabric processing device 100 will be described below with reference to FIGS. 11 to 13. Of these, FIG. 12 is a view corresponding to FIG. 9 showing the fabric processing device 100E of Example 5, and FIG. 13 is a view corresponding to FIG. 10 showing the fabric processing device 100E of Example 5. The fabric processing device 100F of this example is similar to the fabric processing device 100 of Examples 1 to 5 except for the configuration described below. Therefore, the fabric processing device 100F of this example has similar features to the fabric processing device 100 of Examples 1 to 5 except for the points described below. Therefore, in FIGS. 11 to 13, components common to Examples 1 to 5 above are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0082] As described above, the liquid spraying unit 1 of the fabric processing device 100 of Examples 1 to 5 has only one holding unit 2 provided with the nozzle unit 4. On the other hand, the liquid spraying unit 1 of the fabric processing device 100F of this example has a plurality of holding units 2 provided with the nozzle unit 4, namely, a first holding unit 2A and a second holding unit 2B, as shown in Figures 11 and 12. Here, the first holding unit 2A and the second holding unit 2B of this example have the same configuration as the holding unit 2 of the fabric processing device 100E of Example 5, and are configured to be movable in the reciprocating direction I. In addition, the first holding part 2A can be moved in a movement direction J by an adjustment part 50Fa having a fixed part 51Fa and a movable part 52Fa, thereby adjusting the distance between the liquid spraying part 1 and the fabric F, and the second holding part 2B can be moved in a movement direction K by an adjustment part 50Fb having a fixed part 51Fb and a movable part 52Fb, thereby adjusting the distance between the liquid spraying part 1 and the fabric F.

[0083] By using the fabric processing device 100F of this embodiment, as shown in Fig. 13, it is possible to spray the liquid 3 more precisely onto the fabric F than when using the fabric processing device 100E of Example 5. Note that the liquid 3A represented by the solid line in Fig. 13 represents the liquid 3 sprayed from the nozzle portion 4 of the first holding unit 2A, and the liquid 3B represented by the dashed line in Fig. 13 represents the liquid 3 sprayed from the nozzle portion 4 of the second holding unit 2B.

[0084] [Example 7] A fabric processing device 100G of Example 7 as a fabric processing device 100 will be described below with reference to FIG. 14. FIG. 14 is a view corresponding to FIG. 1 showing the fabric processing device 100A of Example 1. The fabric processing device 100G of this example is similar to the fabric processing device 100 of Examples 1 to 6 except for the configuration described below. Therefore, the fabric processing device 100G of this example has similar features to the fabric processing device 100 of Examples 1 to 6 except for the points described below. Therefore, in FIG. 13, components common to Examples 1 to 6 are indicated by the same reference numerals, and detailed description thereof will be omitted.

[0085] As described above, the adjustment unit 50 in the liquid spraying unit 1 of the fabric processing device 100 in Examples 1 to 5 was a gap adjustment unit that adjusted the gap between the liquid spraying unit 1 and the fabric F so that the liquid 3 would collide with the fabric F in the form of droplets 3b. On the other hand, the liquid spraying unit 1 of the fabric processing device 100G in this example includes an adjustment unit 50G, which has a different mechanism from the gap adjustment unit, as the adjustment unit 50. Specifically, the adjustment unit 50G in this example is a member that is held by the holding unit 2 and that, together with the nozzle unit 4, constitutes a head unit. The adjustment unit 50G has a liquid chamber 55 that can accommodate the liquid 3 and a piezoelectric element 56 that can impart vibrations to the liquid 3 in the liquid chamber 55. In this example, a piezoelectric element 56 made of BaTiO3, PZT, PbTiO3, or the like is used to impart vibrations to the liquid 3 in the liquid chamber 55. However, an electrostatic actuator having a dielectric sandwiched between electrodes may be used instead of the piezoelectric element 56.

[0086] The adjustment unit 50G of this embodiment is configured to apply vibrations of a desired frequency to the liquid 3 in the liquid chamber 55, thereby adjusting the dropletization distance, which is the distance from the liquid ejection unit 1 over which the liquid 3, ejected as a continuous stream 3a, turns into droplets 3b. That is, the adjustment unit 50G of this embodiment is a dropletization distance adjustment unit that adjusts the dropletization distance so that the liquid 3 impacts the fabric F in the form of droplets 3b. With this configuration, the liquid 3, ejected as a continuous stream 3a from the liquid ejection unit 1, can impact the fabric F in the form of droplets 3b without changing the distance between the liquid ejection unit 1 and the fabric F. Furthermore, by not having a mechanism for changing the distance between the liquid ejection unit 1 and the fabric F, the entire device can be made smaller.

[0087] The present invention is not limited to the above-described embodiments, and can be realized in various configurations without departing from the spirit of the present invention. The technical features in the embodiments corresponding to the technical features in each aspect described in the Summary of the Invention can be appropriately replaced or combined to solve some or all of the above-described problems or achieve some or all of the above-described effects. Furthermore, if a technical feature is not described as essential in this specification, it can be deleted as appropriate. [Explanation of symbols]

[0088] 1...liquid injection unit, 2...holding unit, 2A...first holding unit, 2B...second holding unit, 3...liquid, 3A...liquid, 3B...liquid, 3a...continuous flow, 3b...liquid droplets, 4...nozzle unit, 4a...jet nozzle, 5...control unit, 6...pressurizing unit, 7...liquid transport unit, 8...liquid storage unit, 9...control signal line, 10...transport unit, 11...set shaft (drive roller), 12...winding shaft (drive roller), 13...transport control unit, 14...cable, 15...driven roller, 16...driven roller -, 21...Support part, 21A...Support part, 21B...Support part, 21C...Support part, 22...Rotary shaft, 23...Support surface, 23a...Curved surface part, 23b...Flat part, 50...Adjustment part, 50A...Adjustment part (interval adjustment part), 50B...Adjustment Adjustment section (interval adjustment section), 50C...Adjustment section (interval adjustment section, moving mechanism), 50D...Adjustment section (interval adjustment section, movement mechanism), 50E...Adjustment section (interval adjustment section), 50F...Adjustment section (interval adjustment section), 50G...Adjustment section (dropletization distance Adjustment portion), 51A...fixed portion, 51B...fixed portion, 51C...fixed portion, 51D...fixed portion, 51E...fixed portion, 51Fa...fixed portion, 51Fb...fixed portion, 51a...base, 51b...shaft portion, 52A...movable portion, 52B...movable portion, 52C...movable portion, 52D...movable portion, 52E...movable portion, 52Fa...movable portion, 52Fb...movable portion, 52a...first connecting portion, 52b...second connecting portion, 52c...third connecting portion, 52d...shaft portion, 52e...fourth connecting portion, 52f ...5th connection portion, 52g...6th connection portion, 52h...7th connection portion, 52i...8th connection portion, 52j...shaft portion, 52k...9th connection portion, 53...gap control portion, 54...cable, 55...liquid chamber, 56...piezoelectric element, 100...fabric processing device, 100A...fabric processing device, 100B...fabric processing device, 100C...fabric processing device, 100D...fabric processing device, 100E...fabric processing device, 100F...fabric processing device, 100G...fabric processing device, F...fabric

Claims

1. A conveying section that conveys the fabric in a conveying direction; A support portion that supports the fabric; a liquid ejection unit that ejects a liquid onto the fabric supported by the support unit; an adjustment unit that adjusts the ejection conditions so that the liquid ejected as a continuous flow from the liquid ejection unit is ejected in the form of droplets that collide with the fabric; A fabric treating apparatus comprising:

2. The fabric processing apparatus according to claim 1, The fabric processing device is characterized in that the adjustment unit is a gap adjustment unit that adjusts the gap between the liquid injection unit and the fabric so that the liquid collides with the fabric in the form of droplets.

3. The fabric processing apparatus according to claim 2, a holding part for holding the liquid ejecting part, The cloth processing apparatus is characterized in that the gap adjustment unit is connected to the holding unit.

4. The fabric treating apparatus according to claim 3, the gap adjustment unit has a fixed unit and a movable unit capable of changing a position of the fixed unit in a gap direction between the liquid ejection unit and the fabric, The fabric processing apparatus is characterized in that the holding part is connected to the movable part.

5. The fabric treating apparatus according to claim 3, A fabric processing apparatus comprising: a moving mechanism for moving the holding portion back and forth in a direction intersecting the conveying direction.

6. The fabric processing apparatus according to claim 1, The adjustment unit is a droplet distance adjustment unit that adjusts the droplet distance, which is the distance from the liquid injection unit until the liquid sprayed as the continuous flow becomes the droplets, so that the liquid collides with the fabric in the droplet state.

7. The fabric processing apparatus according to any one of claims 1 to 6, The fabric processing device, wherein the liquid injection unit is configured to inject the liquid into a continuous flow having an injection speed of 30 m / s or more.

8. The fabric processing apparatus according to claim 7, The fabric processing device, wherein the liquid injection unit is configured to inject the liquid into a continuous flow having an injection speed of 500 m / s or less.

9. The fabric processing apparatus according to any one of claims 1 to 6, The support portion has a support surface that supports the fabric, The fabric treating apparatus is characterized in that the liquid ejecting unit is disposed at a position facing the support surface.

10. The fabric processing apparatus according to claim 9, The fabric treating apparatus according to claim 1, wherein the support surface is a convex curved surface that protrudes toward the liquid ejecting portion.

11. The fabric processing apparatus according to claim 9, The fabric treating apparatus is characterized in that the support surface is a flat surface.

12. The fabric processing apparatus according to claim 11, The fabric processing apparatus is characterized in that the normal line of the support surface forms an angle of 0° or more and 45° or less with respect to a horizontal plane.

13. The fabric processing apparatus according to any one of claims 1 to 6, The liquid injection unit comprises a nozzle unit having at least one injection port for injecting the liquid, a liquid transport unit for transporting the liquid to the injection port, and a pressurizing unit for pressurizing the liquid in the liquid transport unit.

14. The fabric processing apparatus according to any one of claims 1 to 6, A fabric treating apparatus comprising: a control unit that controls an amount of the liquid sprayed from the liquid spray unit.

15. The fabric processing apparatus according to any one of claims 1 to 6, The fabric processing apparatus, wherein the transport section has a drive roller that rotates to transport the fabric in the transport direction.

16. The fabric processing apparatus according to claim 13, The liquid ejection unit has a plurality of ejection ports provided over an entire direction intersecting the transport direction of the fabric, 2. A fabric treating apparatus comprising: a liquid ejecting unit configured to be movable in a direction intersecting a conveying direction of the fabric while the fabric is being conveyed.

Images