A negative ion spunlace fabric production process

Abstract

This application relates to a production process for negative ion spunlace nonwoven fabric, and pertains to the technical field of spunlace nonwoven fabric. The process includes the following steps: opening and mixing: opening and mixing the fiber raw materials; carding and web laying: carding and cross-laying the fiber raw materials; pre-wetting: wetting the fiber raw materials; spunlace: spunlace the fiber raw materials with water; dewatering: removing moisture from the spunlace nonwoven fabric by squeezing; spraying: spraying a slurry containing negative ions onto the spunlace nonwoven fabric; drying: drying the spunlace nonwoven fabric; and winding: winding the spunlace nonwoven fabric. This application has the advantage of low energy consumption.

Description

Technical Field

[0001] This application relates to the technical field of spunlace fabric, and in particular to a production process for negative ion spunlace fabric. Background Technology

[0002] Charged particles formed when atoms lose or gain electrons are called ions, such as sodium ions (Na+). Charged atomic groups are also called "ions," such as sulfate ions. Certain molecules can also form ions under special conditions. A negative ion is an ion carrying one or more negative charges, also called an anion. For example, oxygen ions are generally anions, also called negative oxygen ions. Spunlace fabric, also known as spunlace nonwoven fabric, has a process in which negative ions are added to it to enhance its functionality. This involves coating the surface of the spunlace fabric with a slurry containing negative ions, thus giving it negative ion properties. Chinese invention patent CN1192140C discloses the raw material formula and production process of negative ion cloth. In this process, the negative ion coating is performed on the finished spunlace fabric, followed by drying, resulting in significant energy consumption. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, one of the purposes of this application is to provide a negative ion spunlace fabric production process, which has the advantage of low energy consumption.

[0004] The above-mentioned objective of this application is achieved through the following technical solution:

[0005] A process for producing negative ion spunlace fabric includes the following steps: opening and mixing: opening and mixing the fiber raw materials; carding and web laying: carding the fiber raw materials and cross-laying them; pre-wetting: wetting the fiber raw materials; spunlace: spunlace the fiber raw materials with water; dewatering: removing moisture from the spunlace fabric by squeezing; spraying: spraying a slurry containing negative ions onto the spunlace fabric; drying: drying the spunlace fabric; and winding: winding the spunlace fabric.

[0006] By adopting the above technical solution, that is, after the spunlace fabric is dehydrated during use, the slurry is sprayed onto the spunlace fabric and then dried, thus avoiding secondary drying of the spunlace fabric and effectively reducing energy consumption.

[0007] In a preferred embodiment, this application may be further configured such that, in the winding step, a winding device is included, the winding device including winding shafts, at least two winding shafts, windings arranged in rows, the spunlace fabric passing through multiple winding shafts in sequence, the winding device further including a cutting mechanism, the cutting mechanism including a cutting element and a moving component, the moving component being used to drive the cutting element to move, for cutting the spunlace fabric.

[0008] By adopting the above technical solution, in use, since there are at least two take-up shafts, when the spunlace fabric on one take-up shaft is wound to the preset specification, the spunlace fabric is cut, and then the spunlace fabric is wound up by the other take-up shaft, thereby improving the winding efficiency of the spunlace fabric.

[0009] In a preferred embodiment, this application may be further configured such that: a core is sleeved on the take-up shaft, the core is provided with a positioning hole, and the take-up device further includes a pressing mechanism disposed above the take-up shaft, the pressing mechanism being used to press the spunlace fabric into the positioning hole.

[0010] By adopting the above technical solution, the spunlace fabric is pressed into the positioning hole during use, thereby fixing the spunlace fabric onto the roll core, which makes the winding of the spunlace fabric more convenient.

[0011] In a preferred embodiment, the present application may be further configured such that: the cutting mechanism includes a movable support, a lower probe roller is rotatably connected to the movable support, and the cutting element is disposed on the movable support for cutting the nonwoven fabric.

[0012] By adopting the above technical solution, the presence of the lower roller enables the spunlace fabric between the two take-up shafts to be kept in a taut state, thus effectively improving the cutting effect of the cutting component on the spunlace fabric.

[0013] In a preferred embodiment, the present application may be further configured such that the pressing mechanism includes a roller for contacting the spunlace fabric and pressing the spunlace fabric onto the core.

[0014] By adopting the above technical solution, after the cutting is completed, the winding shaft rotates, which drives the unwound core to rotate. Due to the presence of the rolling wheel, the spunlace fabric can be conveyed, so that the spunlace fabric covers the positioning hole, making it easier to press the spunlace fabric into the positioning hole.

[0015] In a preferred embodiment, the present application may be further configured such that the pressing mechanism further includes a filling mechanism, the filling mechanism including a gripper and a pressing member, the gripper being used to grip the filling strip, and the pressing member being used to drive the gripper to move downward and press the filling strip into the positioning hole.

[0016] By adopting the above technical solution, after the spunlace fabric covers the positioning hole, the pressing component drives the gripping component to move downward, so that the filler strip enters into the positioning hole, thereby achieving the purpose of fixing the spunlace fabric on the roll.

[0017] In a preferred embodiment, this application may be further configured to include a detection unit and a control unit. The detection unit is used to detect whether the spunlace fabric is wound to a preset specification. When the spunlace fabric is wound to the preset specification, a cutting signal is sent to the control unit. After receiving the cutting signal, the control unit controls the cutting mechanism to cut the spunlace fabric.

[0018] By adopting the above technical solution, in use, after receiving the cutting signal, the control unit controls the cutting mechanism to cut the spunlace fabric, thereby achieving the purpose of cutting the spunlace fabric.

[0019] In a preferred embodiment, this application may be further configured to include an unwinding unit, wherein the detection unit also sends a cutting signal to the unwinding unit, and the unwinding unit controls the take-up shaft to rotate in the opposite direction after receiving the cutting signal, thereby unwinding the spunlace fabric. During the downward movement of the moving bracket, it contacts the spunlace fabric and tensions the spunlace fabric, thereby increasing the wrap angle between the spunlace fabric and the core on another take-up shaft.

[0020] By adopting the above technical solution, the spunlace fabric is in a taut state during use, making it easier for the cutting mechanism to cut it. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the cross-sectional structure of the core of this application.

[0022] Figure 2 This is a schematic diagram of the winding device structure of this application.

[0023] Figure 3 This is a cross-sectional structural diagram of the filling mechanism in this application.

[0024] Reference numerals: 1. Core; 11. Positioning hole; 12. Filler strip; 121. Connecting hole; 2. Frame; 3. Cutting mechanism; 31. Moving component; 311. Moving platform; 32. Moving bracket; 33. Lower roller; 34. Cutting piece; 4. Pressing mechanism; 41. Rolling wheel; 411. Wheel core; 412. Deformation layer; 42. Pressing frame; 43. Filling mechanism; 431. Gripping plate; 432. Gripping column; 5. Rewinding shaft. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings.

[0026] Reference Figures 1-3This application discloses a production process for negative ion spunlace fabric, comprising the following steps: opening and mixing: opening and mixing the fiber raw materials; carding and web laying: carding and cross-laying the fiber raw materials; pre-wetting: wetting the fiber raw materials; spunlace: spunlace the fiber raw materials with water; dewatering: removing moisture from the spunlace fabric by squeezing; spraying: spraying a slurry containing negative ions onto the spunlace fabric; drying: drying the spunlace fabric; and winding: winding the spunlace fabric. This application also discloses a core 1, which is fitted onto a winding shaft 5. The length of the core 1 is greater than the width of the spunlace fabric. The core 1 also has positioning holes 11 extending along its length, with a length not less than the width of the spunlace fabric. The positioning holes 11 are used to place filler strips 12, which are made of an elastic material, such as rubber. At least two sides of the filler strip 12 are in contact with the wall of the positioning hole 11.

[0027] The winding step includes a winding device, which comprises a frame 2, a cutting mechanism 3, a pressing mechanism 4, and at least two winding shafts 5, which are driven to rotate by a motor. The cutting mechanism 3 includes a moving component 31 and a cutting element 34. The moving component 31 includes a linear module and a moving platform 311, which drives the moving platform 311 to move. The moving platform 311 is located above the winding shafts 5. The pressing mechanism 4 is mounted on the moving platform 311. The cutting mechanism 3 also includes a moving bracket 32, which is mounted on the moving platform 311. The moving bracket 32 ​​includes a fixed frame and a sliding frame. The fixed frame is fixedly mounted on the moving platform 311, and the sliding frame and the fixed frame are slidably connected and driven to move up and down by the linear module mounted on the fixed frame. A lower probe roller 33 is rotatably connected to the bottom end of the sliding frame. The cutting element 34 is fixedly mounted on the moving frame and located on one side above the lower probe roller 33, facing the unwound winding shaft 5. In this embodiment, the cutting component 34 includes a laser cutting head and a linear module for driving the laser cutting head to move, the linear module being fixedly mounted on a moving frame.

[0028] The pressing mechanism 4 includes a pressing frame 42, a filling mechanism 43, and rolling wheels 41. The filling mechanism 43 includes a gripping component and a pressing component. In this embodiment, the pressing component is a linear module and is fixedly installed on the moving platform 311 to drive the pressing frame 42 to rise and fall. The filling mechanism 43 is installed on the pressing frame 42. There are two rolling wheels 41, located on both sides of the filling mechanism 43. The rolling wheel 41 includes a wheel core 411 and a deformation layer 412 covering the wheel core 411. In this embodiment, the deformation layer 412 can be made of sponge. The gripping component includes a gripping plate 431 and a gripping post 432. The filling strip 12 is provided with a connecting hole 121 for the gripping post 432 to extend into. The gripping post 432 and the connecting hole 121 are interference-fitted to achieve gripping of the filling strip 12.

[0029] It also includes a control system, which includes a detection unit, a control unit, and an unwinding unit. The detection unit is used to detect whether the wound spunlace fabric has reached the preset specifications. When the spunlace fabric is wound to the preset specifications, a cutting signal is sent to the control unit and the unwinding unit. After receiving the cutting signal, the unwinding unit controls the winding shaft 5 to rotate in the reverse direction to unwind the spunlace fabric. After the unwinding is completed, a completion signal is sent to the control unit. After receiving the cutting signal and the completion signal, the control unit controls the cutting mechanism 3 to cut the spunlace fabric.

[0030] The implementation principle of this embodiment is as follows: During use, the dried spunlace fabric passes through multiple take-up shafts 5 in sequence and finally winds onto the core 1 on the farthest take-up shaft 5, covering the positioning hole 11. The filler strip 12 is inserted into the positioning hole 11. Since the filler strip 12 and the positioning hole 11 are compatible, the presence of the spunlace fabric causes the filler strip 12 to deform during the insertion process, thereby fixing the spunlace fabric. Subsequently, the take-up shaft 5 rotates, driving the core 1 to rotate, thereby winding the spunlace fabric. When the spunlace fabric wound by the core 1 reaches the preset specifications, the moving component 31 drives the moving bracket 32 ​​to move, and the pressing frame 42 moves downward until the rolling wheel 41 contacts the spunlace fabric on another core 1 and applies pressure to the spunlace fabric. At this time, the filler strip 12 gripped by the gripper is located above the core 1. Then, the take-up shaft 5, which has completed winding, rotates in the opposite direction, causing the water between the two take-up shafts 5 to... When the spunlace fabric is in a relaxed state, the sliding frame moves downwards, and the lower probe roller 33 contacts the spunlace fabric, causing it to tighten. The wrap angle between the spunlace fabric and the other core 1 increases. At this time, the laser cutting head is aligned with the positioning hole 11 and moves along the length of the positioning hole 11 to cut the spunlace fabric. After cutting, the unwound take-up shaft 5 rotates, causing the spunlace fabric to move forward. Then, the pressing frame 42 moves upwards, preventing the rolling wheel 41 from contacting the spunlace fabric. The reel 5 rotates in the reverse direction, causing the positioning hole 11 to move directly below the clamped filler strip 12. Then, the pressing frame 42 moves downward, causing the roller 41 to deform until the filler strip 12 is inserted into the positioning hole 11. At this time, the friction between the positioning hole 11 and the filler strip 12 is greater than the friction between the gripping post 432 and the connecting hole 121. Therefore, when the gripping post 432 moves upward, the filler strip 12 will remain in the positioning hole 11. Then, the reel 5 rotates to perform the winding operation.

[0031] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A process for producing a negative ion spunlace fabric, characterized in that: The process includes the following steps: opening and mixing: opening and mixing the fiber raw materials; carding and web laying: carding the fiber raw materials and cross-laying them; pre-wetting: wetting the fiber raw materials; Spunlace: the process of spunlace fiber raw materials; Water removal: The water in the spunlace fabric is removed by squeezing. Spraying: Spraying a slurry containing negative ions onto the spunlace fabric; Drying: Dry the spunlace fabric; Winding: The spunlace fabric is wound up; the winding step includes a winding device, which includes a winding shaft (5), at least two winding shafts (5), the windings are arranged in rows, and the spunlace fabric passes through multiple winding shafts (5) in sequence. The winding device also includes a cutting mechanism (3), which includes a cutting element (34) and a moving component (31). The moving component (31) is used to drive the cutting element (34) to move in order to cut the spunlace fabric. A core (1) is sleeved on the winding shaft (5). The winding core (1) is provided with a positioning hole (11), and the winding device further includes a pressing mechanism (4), which is located above the winding shaft (5). The pressing mechanism (4) is used to press the spunlace fabric into the positioning hole (11). The cutting mechanism (3) includes a movable bracket (32), on which a lower probe roller (33) is rotatably connected. The cutting component (34) is mounted on the movable bracket (32) for cutting the nonwoven fabric. The pressing mechanism (4) includes a rolling mechanism. The rolling wheel (41) is used to contact the spunlace fabric and press it onto the core (1); the pressing mechanism (4) also includes a filling mechanism (43), which includes a gripper and a pressing member. The gripper is used to grip the filling strip (12), and the pressing member is used to drive the gripper to move downward and press the filling strip (12) into the positioning hole (11); it also includes a detection unit and a control unit. The detection unit is used to detect whether the spunlace fabric is wound to a preset specification. After the spunlace fabric is wound to the preset specification, a cutting signal is sent to the control unit. After receiving the cutting signal, the control unit controls the cutting mechanism (3) to cut the spunlace fabric. It also includes an unwinding unit. The detection unit will also send the cutting signal to the unwinding unit. After receiving the cutting signal, the unwinding unit controls the winding shaft (5) to rotate in the opposite direction to unwind the spunlace fabric. During the downward movement of the moving bracket (32), it comes into contact with the spunlace fabric and makes the spunlace fabric taut. The wrap angle between the spunlace fabric and the core (1) on another winding shaft (5) becomes larger.

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