Environment-friendly nylon cotton-linen-like fabric and preparation process thereof

Abstract

The invention discloses an environment-friendly nylon cotton-linen-like fabric and a preparation process thereof, and relates to the technical field of fabric production, and the preparation process comprises the following specific steps: step 1, spinning; step 2, weaving; step 3, dyeing; step 4, printing; 5, finishing, wherein the fabric is subjected to finishing and setting operation through a pre-shrinking machine and a tentering setting machine. According to the invention, environment-friendly materials are utilized, nanoscale titanium dioxide particles are blended into the raw materials, POY with a set process F number is generated through a spinning spinneret plate, and the added titanium dioxide can play a role in absorbing light, so that the sensory effect of mercerized cotton is achieved; titanium dioxide is added, so that the fabric has certain antibacterial and bacteriostatic effects; according to the preshrinking machine, by arranging the displacement mechanism and the adjusting mechanism, a rubber blanket can be directly taken down from the cloth feeding roller, the supporting roller and the tension roller, after the rubber blanket is replaced, the side plates are installed, and the positions of the cloth feeding roller and the tension roller are adjusted, so that the preshrinking machine adapts to rubber blankets with different thicknesses, and replacement operation on the rubber blanket is facilitated.

Description

Technical Field

[0001] This invention relates to the field of fabric production technology, specifically to environmentally friendly nylon imitation cotton and linen fabric and its preparation process. Background Technology

[0002] Environmentally friendly nylon cotton-linen imitation fabrics include various types made from virgin polyamide (PA), a chemical raw material directly extracted from fossil fuels such as petroleum, through polymerization and spinning processes, resulting in 100% pre-consumer PA FDY 90D / 60F FD cotton-like yarn. They also include 100% pre-consumer recycled PA FDY 90D / 60F FD cotton-like yarn made from fibers recovered from production waste (such as spinning waste, weaving scraps, and defective products) through physical or chemical methods. These fabrics combine environmental friendliness with a cotton-linen-like texture. However, fabrics made from blends of these two types are not fine in texture, have a rougher feel, and lack antibacterial properties.

[0003] Furthermore, pre-shrinking is a crucial step in fabric production. Environmentally friendly nylon-linen blend fabric combines the strength of nylon with the natural feel of linen, but without pre-shrinking, the fibers may shrink due to tension release when absorbing water or steam, causing garment deformation. This process utilizes a pre-shrinking machine. During pre-shrinking, the rubber blanket must withstand 200-250kN of pressure. Prolonged pressure can cause molecular chain breakage, and the rubber components undergo oxidation under high temperatures (80-100℃ on the pressure rollers) and oxygen, leading to decreased elasticity and increased hardness. Over time, this can result in cracking and powdering, affecting the performance of the pre-shrinking machine.

[0004] Based on the aforementioned technical issues, the applicant provided an environmentally friendly nylon imitation cotton and linen fabric and its preparation process. Summary of the Invention

[0005] The purpose of this invention is to provide an environmentally friendly nylon imitation cotton-linen fabric with a fine texture and a mercerized cotton-like feel, and to offer its manufacturing process. A second objective of this invention is to improve the pre-shrinking machine used in conjunction with the production process, thereby facilitating the replacement of the rubber blanket, ensuring the effectiveness of the pre-shrinking machine, and ultimately guaranteeing the quality of the fabric pre-shrinking.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an environmentally friendly nylon imitation cotton and linen fabric, which adopts the current high-efficiency and low-cost water-jet weaving process in the field of woven fabrics, uses 100% pre-consumer recycled PA FDY 90D / 60F FD imitation cotton yarn in the warp direction and 100% pre-consumer PA FDY 90D / 60F FD imitation cotton yarn in the weft direction, with a warp density of 68 threads / cm, a weft density of 48 threads / cm, and a weight of 125 g / m².

[0007] The specific steps in the preparation process of environmentally friendly nylon imitation cotton and linen fabric are as follows: Step 1: Spinning. 2-3% by weight of nano-sized titanium dioxide particles are incorporated into the raw materials, and then the raw materials are processed through a spinning spinneret to generate POY yarn with a predetermined F number. The added titanium dioxide can absorb light, thus achieving the effect of mercerized cotton. Step 2: Weaving. When weaving the fabric, a water jet loom is selected with a speed of 550 rpm and a weaving tension of 235 kg. This equipment has good weft insertion performance, an automatic tension adjustment device, high efficiency, and low cost. The fabric can be guaranteed to have excellent surface quality. The cost reduction is also conducive to the promotion and mass production of this product. Step 3: Dyeing, which is carried out using a dyeing machine; Step 4: Printing; Step 5: Finishing. The fabric is finished and shaped using a pre-shrinking machine and a tenter frame.

[0008] As a further embodiment of the present invention: the pre-shrinking machine includes a housing, a heating roller is installed in the inner cavity of the housing, a feed roller is provided at one end of the inner cavity of the housing located at the heating roller, a support roller is rotatably connected to the other end of the inner cavity of the housing located at the heating roller, a tension roller is provided below the heating roller, and a rubber blanket is connected to the outer wall of the feed roller, the support roller and the tension roller. The tension of the rubber blanket is adjusted by a displacement mechanism, and the position of the feed roller is adjusted by an adjustment mechanism.

[0009] As a further embodiment of the present invention: the displacement mechanism includes a first displacement groove, which is formed on the outer wall of the housing. A first displacement seat is slidably connected to the inner wall of the first displacement groove. The tension roller is rotatably connected to the first displacement seat. A connecting seat is fixedly connected to one side of the outer wall of the housing. A connecting groove is formed on the outer wall of the connecting seat. A sliding groove is formed on the inner wall of the connecting groove. A slot is formed at the bottom end of the connecting groove. A rotating seat is slidably connected to the inner wall of the connecting groove. A connecting shaft is fixedly connected to the outer wall of the rotating seat. The connecting shaft is slidably connected to the inner wall of the sliding groove. A side plate is fixedly connected to the top of the rotating seat. A second displacement groove is formed on the outer wall of the side plate. A second displacement seat is slidably connected to the inner wall of the second displacement groove. A plug rod is fixedly connected to the bottom of the second displacement seat. The plug rod extends to the bottom of the rotating seat. A connecting hole is formed on the outer wall of the second displacement seat. A horizontal plate is fixedly connected to the outer wall of the second displacement seat. An mounting plate is fixedly connected to the outer wall of the side plate above the horizontal plate. A rotating column is rotatably connected to the top of the mounting plate. A first threaded rod is fixedly connected to the bottom of the rotating column. The first threaded rod passes through the horizontal plate.

[0010] As a further embodiment of the present invention: the adjustment mechanism includes a first movable groove, which is formed on the outer wall of the housing. A first movable seat is slidably connected to the inner wall of the first movable groove. The feed roller is rotatably connected to the first movable seat. A motor is installed on the outer wall of the first movable seat, and the motor is used to drive the feed roller to rotate. A second movable groove is formed on the outer wall of the side plate. A second movable seat is slidably connected to the inner wall of the second movable groove. An installation hole is formed on the outer wall of the second movable seat. A spur gear is rotatably connected to one end of the second movable groove. A second threaded rod is fixedly connected to the outer wall of the spur gear and passes through the second movable seat. A T-shaped block is fixedly connected to the outer wall of the side plate above the spur gear. A toothed plate is slidably connected to the outer wall of the T-shaped block. A guide groove for the T-shaped block to slide is formed on the outer wall of the toothed plate. A support seat is provided on one side of the housing.

[0011] As a further embodiment of the present invention: the outer wall of the horizontal plate is provided with a first threaded hole, the first threaded hole is matched with the first threaded rod, the outer wall of the second displacement seat is in contact with the inner wall of the second displacement groove, the outer wall of the insertion rod is in contact with the inner wall of the slot, and the outer wall of one end of the tension roller is in contact with the inner wall of the connecting hole.

[0012] As a further embodiment of the present invention: the outer wall of the rotating seat is in contact with the inner wall of the connecting groove, and the outer wall of the connecting shaft is in contact with the inner wall of the sliding groove.

[0013] As a further embodiment of the present invention: the inner wall of the guide groove is in contact with the outer wall of the T-shaped block, and a toothed groove is provided at the bottom end of the toothed plate, the toothed groove meshing with the spur gear.

[0014] As a further embodiment of the present invention: the inner wall of the second movable groove is in contact with the outer wall of the second movable seat, and the outer wall of the second movable seat is provided with a second threaded hole, which matches the second threaded rod.

[0015] As a further embodiment of the present invention: the inner wall of the first displacement groove is in contact with the outer wall of the first displacement seat, the outer wall of the first movable seat is in contact with the inner wall of the first movable groove, and the inner walls of the first movable groove and the first displacement groove are fixedly connected with limit rods. The outer walls of the first displacement seat and the first movable seat are provided with limit holes, and the inner wall of the limit hole is in contact with the outer wall of the limit rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes environmentally friendly materials and incorporates nano-sized titanium dioxide particles into the raw materials. The raw materials are then processed through a spinning spinneret to produce POY yarn with a predetermined F number. The added titanium dioxide can absorb light, thereby achieving the visual effect of mercerized cotton. The addition of titanium dioxide can also give the fabric a certain antibacterial and bacteriostatic effect.

[0017] 2. This invention creatively improves the pre-shrinking machine by incorporating a displacement mechanism and an adjustment mechanism. Rotating the rotating column releases the fixation on the side plate, simultaneously loosening the tension roller and releasing the rubber blanket. Then, the rotating side plate is moved to open the inner cavity of the housing. At this point, the second movable seat separates from the feed roller, releasing the feed roller's pressure on the rubber blanket. This allows the rubber blanket to be directly removed from the feed roller, support roller, and tension roller. After replacing the rubber blanket, the side plate is installed, and the positions of the feed roller and tension roller are adjusted to accommodate rubber blankets of different thicknesses, facilitating blanket replacement. This improved pre-shrinking machine ensures pre-shrinking quality and further enhances fabric quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the pre-shrinking machine described in this invention; Figure 2 This is a schematic diagram of the installation of the rubber blanket in the pre-shrinking machine described in this invention; Figure 3 This is a schematic diagram of the installation of the first movable seat of the pre-shrinking machine described in this invention; Figure 4 This is a schematic diagram of the installation of the side plate of the pre-shrinking machine described in this invention; Figure 5 This is a schematic diagram of the slot structure of the pre-shrinking machine described in this invention; Figure 6 This is a cross-sectional view of the side plate of the pre-shrinking machine described in this invention; Figure 7 This is a schematic diagram of the installation of the spur gear in the pre-shrinking machine described in this invention.

[0019] In the diagram: 1. Box body; 2. Heating roller; 3. Feed roller; 4. Support roller; 5. Tension roller; 6. Rubber blanket; 7. Displacement mechanism; 701. First displacement groove; 702. First displacement seat; 703. Side plate; 704. Rotating seat; 705. Connecting shaft; 706. Connecting seat; 707. Connecting groove; 708. Slide groove; 709. Slot; 710. Second displacement groove; 711. Second displacement seat; 712. Connecting hole; 71 3. Insert rod; 714. Horizontal plate; 715. Mounting plate; 716. Rotating column; 717. First threaded rod; 8. Adjustment mechanism; 801. First movable slot; 802. First movable seat; 803. Motor; 804. Second movable slot; 805. Second movable seat; 806. Mounting hole; 807. Second threaded rod; 808. Spur gear; 809. Gear plate; 810. T-block; 811. Guide groove; 812. Support base. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0022] Please see Figures 1 to 7 In this embodiment of the invention, the environmentally friendly nylon imitation cotton and linen fabric adopts the water-jet weaving process, which is currently highly efficient and low-cost in the field of woven fabrics. The warp uses 100% pre-consumer recycled PA FDY 90D / 60F FD imitation cotton yarn, and the weft uses 100% pre-consumer PA FDY 90D / 60F FD imitation cotton yarn. The warp density reaches 68 threads / cm, the weft density is 48 threads / cm, and the weight is 125 grams / m².

[0023] The specific steps in the preparation process of environmentally friendly nylon imitation cotton and linen fabric are as follows: Step 1: Spinning. 2-3% of nano-sized titanium dioxide particles are incorporated into the raw materials, and then the raw materials are processed through a spinning spinneret to generate POY yarn with a predetermined F number. The added titanium dioxide can absorb light, thus achieving the effect of mercerized cotton. During spinning, recycled high-shrinkage environmentally friendly nylon chips are used. Compressed air is then used to jet-deform a 47dtex / 48F POY filament with an elongation ratio of 1.45, causing small loops to form on the outer ring. After breaking, several ends are exposed, which is similar to the "yarn" spun from short filaments using conventional methods. This produces matte FDY with a boiling water shrinkage rate of 15%-18%.

[0024] Spinning process: Long filaments are fed into a turbulent nozzle at a certain overfeed rate, causing the excess length (the slower-moving portion inside the nozzle) to form loops or arcs and become yarn. Air texturing is mainly achieved through air texturing nozzles. The original filaments enter the nozzle and are blown apart and disordered by the airflow, then accelerated in the accelerating feed tube (Venturi tube). Before leaving the nozzle, the individual filaments are roughly parallel, but upon leaving the nozzle, the filaments make a 90° turn, generating arcs of varying sizes. Due to the overfeed, a certain length of free filament segments appear, and while the filaments intertwine, a network forms above the bending point, forming the basic structure of air-textured yarn. Depending on the requirements of the product, heat setting or loop cutting can be performed in other mechanisms of the air texturing machine to create a nap-like texture on the filament surface, similar to short-fiber yarn.

[0025] Step Two: Weaving. A water-jet loom is selected for weaving at a speed of 550 rpm and a weaving tension of 235 kg. The fabric is designed as a twill weave. The initial design considered that the best garment-like effect of the fabric is drape and slight elasticity; therefore, a 2-up, 2-down right-hand twill weave structure is chosen. The even float length gives the fabric good shrinkage. After dyeing and finishing, the fabric will have a slight elasticity. At the same time, the twill weave makes the garment more comfortable and aesthetically pleasing to wear. The fabric is woven using a Tsudakoma 8200 water-jet loom at a speed of 550 rpm and a weaving tension of 235 kg. This equipment features excellent weft insertion performance, an automatic tension adjustment device, high efficiency, and low cost (reducing costs by 1.3 yuan compared to air-jet and rapier looms). The fabric exhibits excellent surface quality, and the cost reduction facilitates the product's promotion and mass production. Step 3: Dyeing. The dyeing process is carried out using a dyeing machine. Using 30 g / L of caustic soda, 1 g / L of NOVECO (a special leavening agent from Tuona), and 1 g / L of MFB (a special refining agent from Anggao), the two different nylon components are made to have different shrinkage rates at 105 degrees Celsius for 30 minutes, creating a cotton-linen-like effect from recycled nylon before consumption, but with a finer texture. Step 4: Printing; Step 5: Finishing. The fabric is finished and shaped using a pre-shrinking machine and a tenter frame.

[0026] Please refer to this carefully. Figures 1 to 2 The pre-shrinking machine includes a housing 1, a heating roller 2 installed in the inner cavity of the housing 1, a feed roller 3 located at one end of the inner cavity of the housing 1 near the heating roller 2, a support roller 4 rotatably connected to the other end of the inner cavity of the housing 1 near the heating roller 2, a tension roller 5 located below the heating roller 2, and a rubber blanket 6 connected to the outer wall of the feed roller 3, the support roller 4 and the tension roller 5. The tension of the rubber blanket 6 is adjusted by a displacement mechanism 7, and the position of the feed roller 3 is adjusted by an adjustment mechanism 8.

[0027] In this embodiment: the fabric passes between the heating roller 2 and the rubber blanket 6, the feed roller 3 rotates to drive the rubber blanket 6 to rotate, and the rotation of the rubber blanket 6 drives the fabric to move.

[0028] Please refer to this carefully. Figures 3 to 6The displacement mechanism 7 includes a first displacement groove 701, which is formed on the outer wall of the housing 1. A first displacement seat 702 is slidably connected to the inner wall of the first displacement groove 701. The tension roller 5 is rotatably connected to the first displacement seat 702. A connecting seat 706 is fixedly connected to one side of the outer wall of the housing 1. A connecting groove 707 is formed on the outer wall of the connecting seat 706. A sliding groove 708 is formed on the inner wall of the connecting groove 707. A slot 709 is formed at the bottom end of the connecting groove 707. A rotating seat 704 is slidably connected to the inner wall of the connecting groove 707. A connecting shaft 705 is fixedly connected to the outer wall of the rotating seat 704. The connecting shaft 705 is slidably connected to the inner wall of the sliding groove 708. The top end of the rotating seat 704 is fixed. A side plate 703 is connected, and a second displacement groove 710 is formed on the outer wall of the side plate 703. A second displacement seat 711 is slidably connected to the inner wall of the second displacement groove 710. A plug rod 713 is fixedly connected to the bottom end of the second displacement seat 711. The plug rod 713 extends to the bottom of the rotating seat 704. A connecting hole 712 is formed on the outer wall of the second displacement seat 711. A horizontal plate 714 is fixedly connected to the outer wall of the second displacement seat 711. An mounting plate 715 is fixedly connected to the outer wall of the side plate 703 above the horizontal plate 714. A rotating column 716 is rotatably connected to the top end of the mounting plate 715. A first threaded rod 717 is fixedly connected to the bottom end of the rotating column 716. The first threaded rod 717 passes through the horizontal plate 714.

[0029] In this embodiment: when the tension roller 5 is moved, one end of the tension roller 5 is located on the inner wall of the connecting hole 712. Rotating the rotating column 716 causes the first threaded rod 717 to rotate, which in turn causes the horizontal plate 714 to move. The horizontal plate 714 then moves the second displacement seat 711, which slides within the second displacement groove 710. The displacement of the second displacement seat 711 causes the tension roller 5 to move. By adjusting the position of the tension roller 5, the tension of the rubber blanket 6 is adjusted. When the side plate 703 is opened, the rotating column 716 is rotated to move the second displacement seat 711 to the top of the second displacement groove 710. The displacement of the second displacement seat 711 causes the tension roller 5 and the insertion rod 713 to move synchronously. The displacement of the tension roller 5 releases the rubber blanket 6. At the same time, the insertion rod 713 moves out of the slot 709, canceling the fixation of the side plate 703. The rotating seat 704 is pushed to slide in the connecting groove 707. The connecting shaft 705 slides to one end of the slide groove 708. Then the side plate 703 is rotated to a horizontal state. When installing the side plate 703, rotate the side plate 703 to a vertical position, push the side plate 703 to reposition, and connect one end of the tension roller 5 into the connecting hole 712. Then, rotate the rotating column 716 to drive the insertion rod 713 to move and insert into the slot 709 to fix the side plate 703. At the same time, the position of the tension roller 5 can be adjusted by the position of the second displacement seat 711.

[0030] Please refer to this carefully. Figures 3 to 7 The adjusting mechanism 8 includes a first movable groove 801, which is formed on the outer wall of the housing 1. A first movable seat 802 is slidably connected to the inner wall of the first movable groove 801. The feed roller 3 is rotatably connected to the first movable seat 802. A motor 803 is installed on the outer wall of the first movable seat 802 to drive the feed roller 3 to rotate. A second movable groove 804 is formed on the outer wall of the side plate 703. A second movable seat 805 is slidably connected to the inner wall of the second movable groove 804. The outer wall of the second movable seat 805... The housing 1 has a mounting hole 806. A spur gear 808 is rotatably connected to one end of the second movable slot 804. A second threaded rod 807 is fixedly connected to the outer wall of the spur gear 808. The second threaded rod 807 passes through the second movable seat 805. A T-shaped block 810 is fixedly connected to the outer wall of the side plate 703 above the spur gear 808. A toothed plate 809 is slidably connected to the outer wall of the T-shaped block 810. A guide groove 811 for the T-shaped block 810 to slide is provided on the outer wall of the toothed plate 809. A support seat 812 is provided on one side of the housing 1.

[0031] In this embodiment: when installing the side plate 703, one end of the feed roller 3 is connected to the inner wall of the mounting hole 806; when adjusting the position of the feed roller 3, the toothed plate 809 is pushed to move, at which time the T-block 810 slides in the guide groove 811 to limit the displacement direction of the toothed plate 809. The displacement of the toothed plate 809 drives the spur gear 808 to rotate, the rotation of the spur gear 808 drives the second threaded rod 807 to rotate, the rotation of the second threaded rod 807 drives the second movable seat 805 to move, and the second movable seat 805 slides in the second movable groove 804. By adjusting the position of the second movable seat 805, the position of the feed roller 3 is adjusted, thereby adjusting the pressure of the feed roller 3 and the heating roller 2 on the rubber blanket 6. When replacing the rubber blanket 6, rotate the rotating column 716 to release the fixation of the side plate 703. At the same time, the tension roller 5 loosens the rubber blanket 6. Then, move the rotating side plate 703 to open the inner cavity of the box 1. At this time, the side plate 703 rotates and contacts the support seat 812. The support seat 812 is subjected to force and moves. The displacement of the support seat 812 drives the second movable seat 805 to move to one end of the second movable groove 804. At this time, the second movable seat 805 separates from the feed roller 3. The feed roller 3 loosens its pressure on the rubber blanket 6, so that the rubber blanket 6 can be directly removed from the feed roller 3, support roller 4 and tension roller 5. After replacing the rubber blanket 6, install the side plate 703 and adjust the position of the feed roller 3 and tension roller 5 to adapt to rubber blankets 6 of different thicknesses, which facilitates the replacement operation of the rubber blanket 6.

[0032] Please refer to this carefully. Figures 3 to 6The outer wall of the horizontal plate 714 is provided with a first threaded hole, which matches the first threaded rod 717. The outer wall of the second displacement seat 711 is in contact with the inner wall of the second displacement groove 710. The outer wall of the insertion rod 713 is in contact with the inner wall of the slot 709. One end of the outer wall of the tension roller 5 is in contact with the inner wall of the connecting hole 712.

[0033] In this embodiment: one end of the tension roller 5 is located on the inner wall of the connecting hole 712. Rotating the rotating column 716 causes the first threaded rod 717 to rotate, which in turn causes the horizontal plate 714 to move. The horizontal plate 714 moves, which in turn causes the second displacement seat 711 to move. The second displacement seat 711 slides in the second displacement groove 710, and the displacement of the second displacement seat 711 causes the tension roller 5 to move. By adjusting the position of the tension roller 5, the tension of the rubber blanket 6 is adjusted.

[0034] Please refer to this carefully. Figures 3 to 6 The outer wall of the rotating seat 704 is in contact with the inner wall of the connecting groove 707, and the outer wall of the connecting shaft 705 is in contact with the inner wall of the sliding groove 708.

[0035] In this embodiment: rotating the rotating column 716 causes the second displacement seat 711 to move to the top of the second displacement groove 710. The displacement of the second displacement seat 711 causes the tension roller 5 and the insertion rod 713 to move synchronously. The displacement of the tension roller 5 loosens the rubber blanket 6. At the same time, the insertion rod 713 moves out of the slot 709, canceling the fixation of the side plate 703. The rotating seat 704 is pushed to slide in the connecting groove 707. The connecting shaft 705 slides to one end of the slide groove 708. Then the rotating side plate 703 is in a horizontal state.

[0036] Please refer to this carefully. Figures 3 to 7 The inner wall of the guide groove 811 fits against the outer wall of the T-shaped block 810, and the bottom end of the toothed plate 809 is provided with a toothed groove that meshes with the spur gear 808.

[0037] In this embodiment: the toothed plate 809 is pushed to move, at which time the T-shaped block 810 slides in the guide groove 811 to limit the displacement direction of the toothed plate 809. The displacement of the toothed plate 809 drives the spur gear 808 to rotate.

[0038] Please refer to this carefully. Figures 3 to 7 The inner wall of the second movable groove 804 fits against the outer wall of the second movable seat 805. The outer wall of the second movable seat 805 is provided with a second threaded hole, which matches the second threaded rod 807.

[0039] In this embodiment: the rotation of the spur gear 808 drives the second threaded rod 807 to rotate, the rotation of the second threaded rod 807 drives the second movable seat 805 to move, and the second movable seat 805 slides in the second movable groove 804. The position of the feed roller 3 is adjusted by adjusting the position of the second movable seat 805.

[0040] Please refer to this carefully. Figures 3 to 7 The inner wall of the first displacement groove 701 is in contact with the outer wall of the first displacement seat 702, the outer wall of the first movable seat 802 is in contact with the inner wall of the first movable groove 801, and the inner walls of the first movable groove 801 and the first displacement groove 701 are fixedly connected with limit rods. Limit holes are opened on the outer walls of the first displacement seat 702 and the first movable seat 802, and the inner wall of the limit hole is in contact with the outer wall of the limit rod.

[0041] In this embodiment: the first displacement seat 702 slides on the inner wall of the first displacement groove 701, and the first movable seat 802 slides on the inner wall of the first movable groove 801. At this time, the limiting rod slides in the limiting hole to limit the movement direction of the first displacement seat 702 and the first movable seat 802.

[0042] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An environmentally friendly nylon fabric that imitates cotton and linen, characterized in that, Employing water-jet weaving technology from the woven fabric industry, the warp uses 100% pre-consumer recycled PA FDY 90D / 60F FD cotton-like yarn, and the weft uses 100% pre-consumer PA FDY 90D / 60F FD cotton-like yarn. The warp density reaches 68 threads / cm, the weft density is 48 threads / cm, and the weight is 125 g / m².

2. The preparation process of the environmentally friendly nylon imitation cotton-linen fabric according to claim 1, characterized in that, The specific steps are as follows: Step 1: Spinning. 2-3% by weight of nano-sized titanium dioxide is incorporated into the raw materials, and then the raw materials are processed through a spinning spinneret to produce POY yarn with a predetermined F number. Step 2: Weaving. When weaving the fabric, select a water jet loom with a speed of 550 rpm and a weaving tension of 235 kg. Step 3: Dyeing, which is carried out using a dyeing machine; Step 4: Printing; Step 5: Finishing. The fabric is finished and shaped using a pre-shrinking machine and a tenter frame.

3. The preparation process of the environmentally friendly nylon imitation cotton-linen fabric according to claim 2, characterized in that, The pre-shrinking machine includes a housing (1), a heating roller (2) is installed in the inner cavity of the housing (1), a feed roller (3) is provided at one end of the heating roller (2) in the inner cavity of the housing (1), a support roller (4) is rotatably connected at the other end of the heating roller (2) in the inner cavity of the housing (1), a tension roller (5) is provided below the heating roller (2), a rubber blanket (6) is connected to the outer wall of the feed roller (3), the support roller (4) and the tension roller (5), the tension of the rubber blanket (6) is adjusted by a displacement mechanism (7), and the position of the feed roller (3) is adjusted by an adjustment mechanism (8).

4. The preparation process of the environmentally friendly nylon imitation cotton-linen fabric according to claim 3, characterized in that, The displacement mechanism (7) includes a first displacement groove (701), which is formed on the outer wall of the housing (1). A first displacement seat (702) is slidably connected to the inner wall of the first displacement groove (701). The tension roller (5) is rotatably connected to the first displacement seat (702). A connecting seat (706) is fixedly connected to one side of the outer wall of the housing (1). A connecting groove (707) is formed on the outer wall of the connecting seat (706). A sliding groove (708) is formed on the inner wall of the connecting groove (707). A slot (709) is formed at the bottom end of the connecting groove (707). A rotating seat (704) is slidably connected to the inner wall of the connecting groove (707). A connecting shaft (705) is fixedly connected to the outer wall of the rotating seat (704). The connecting shaft (705) is slidably connected to the inner wall of the sliding groove (708). The top end of the rotating seat (704) is... A side plate (703) is fixedly connected. A second displacement groove (710) is provided on the outer wall of the side plate (703). A second displacement seat (711) is slidably connected to the inner wall of the second displacement groove (710). A plug rod (713) is fixedly connected to the bottom end of the second displacement seat (711). The plug rod (713) extends to the bottom of the rotating seat (704). A connecting hole (712) is provided on the outer wall of the second displacement seat (711). A horizontal plate (714) is fixedly connected to the outer wall of the second displacement seat (711). An mounting plate (715) is fixedly connected to the outer wall of the side plate (703) above the horizontal plate (714). A rotating column (716) is rotatably connected to the top end of the mounting plate (715). A first threaded rod (717) is fixedly connected to the bottom end of the rotating column (716). The first threaded rod (717) passes through the horizontal plate (714).

5. The preparation process of the environmentally friendly nylon imitation cotton-linen fabric according to claim 4, characterized in that, The adjusting mechanism (8) includes a first movable groove (801), which is located on the outer wall of the housing (1). A first movable seat (802) is slidably connected to the inner wall of the first movable groove (801). The feed roller (3) is rotatably connected to the first movable seat (802). A motor (803) is installed on the outer wall of the first movable seat (802). The motor (803) is used to drive the feed roller (3) to rotate. A second movable groove (804) is provided on the outer wall of the side plate (703). A second movable seat (805) is slidably connected to the inner wall of the second movable groove (804). The outer wall is provided with a mounting hole (806), and a spur gear (808) is rotatably connected to one end of the second movable groove (804). A second threaded rod (807) is fixedly connected to the outer wall of the spur gear (808). The second threaded rod (807) passes through the second movable seat (805). A T-shaped block (810) is fixedly connected to the outer wall of the side plate (703) above the spur gear (808). A toothed plate (809) is slidably connected to the outer wall of the T-shaped block (810). A guide groove (811) is provided on the outer wall of the toothed plate (809) for the T-shaped block (810) to slide. A support seat (812) is provided on one side of the box (1).

6. The preparation process of the environmentally friendly nylon imitation cotton-linen fabric according to claim 4, characterized in that, The outer wall of the horizontal plate (714) is provided with a first threaded hole, which matches the first threaded rod (717). The outer wall of the second displacement seat (711) is in contact with the inner wall of the second displacement groove (710). The outer wall of the insertion rod (713) is in contact with the inner wall of the slot (709). The outer wall of one end of the tension roller (5) is in contact with the inner wall of the connecting hole (712).

7. The preparation process of the environmentally friendly nylon imitation cotton-linen fabric according to claim 4, characterized in that, The outer wall of the rotating seat (704) is in contact with the inner wall of the connecting groove (707), and the outer wall of the connecting shaft (705) is in contact with the inner wall of the sliding groove (708).

8. The preparation process of the environmentally friendly nylon imitation cotton-linen fabric according to claim 5, characterized in that, The inner wall of the guide groove (811) is in contact with the outer wall of the T-shaped block (810), and the bottom end of the toothed plate (809) is provided with a toothed groove, which meshes with the spur gear (808).

9. The preparation process of the environmentally friendly nylon imitation cotton-linen fabric according to claim 5, characterized in that, The inner wall of the second movable groove (804) fits against the outer wall of the second movable seat (805), and the outer wall of the second movable seat (805) is provided with a second threaded hole, which matches the second threaded rod (807).

10. The preparation process of the environmentally friendly nylon imitation cotton-linen fabric according to claim 5, characterized in that, The inner wall of the first displacement groove (701) is in contact with the outer wall of the first displacement seat (702), the outer wall of the first movable seat (802) is in contact with the inner wall of the first movable groove (801), and the inner walls of the first movable groove (801) and the first displacement groove (701) are fixedly connected with limit rods. The outer walls of the first displacement seat (702) and the first movable seat (802) are provided with limit holes, and the inner wall of the limit hole is in contact with the outer wall of the limit rod.

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