Method for improving surface quality of non-woven fabric

Abstract

The invention provides a non-woven fabric surface quality improving method, and belongs to the technical field of non-woven fabric processing. A non-woven fabric surface quality improving method comprises the following steps that S1, the surface of a non-woven fabric is pretreated through an impurity removing mechanism, stains are removed through soaking and brushing, and then drying treatment is conducted; s2, the surface of the non-woven fabric is compactly treated through a color printing device and a coating device, so that the waterproofness and the antistatic property of the non-woven fabric are improved; s3, performing after-finishing on the surface of the non-woven fabric through a calendaring mechanism and an ironing mechanism; and S4, a high-pressure micro-mist humidification technology is adopted, micron-sized water mist is sprayed to treat the non-woven fabric, and the water content of the non-woven fabric is increased. The color printing device has the advantage of high color printing efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of non-woven fabric processing, and specifically relates to a method for improving the surface quality of non-woven fabric. Background Art

[0002] Non-woven fabrics are also called non-woven fabrics, needle-punched cotton, needle-punched non-woven fabrics, etc. They are made of polyester fiber and polyester fiber (referred to as PET) and are made through a needle-punching process. They can be made into different thicknesses, feel, hardness, etc. Non-woven fabrics are moisture-proof, breathable, flexible, thin, flame-retardant, non-toxic and tasteless, low-priced, and recyclable. They can be used in different industries, such as sound insulation, heat insulation, electric heaters, masks, clothing, medical, filling materials, etc. When printing non-woven fabrics, thicker non-woven fabrics need to be spread out and printed at the position where they need to be printed. However, when printing non-woven fabrics, a single color printing nozzle group is used, and the color printing efficiency is average. Moreover, the color printing nozzle group is fixed on the top of the color printing machine, and the position of the color printing nozzle cannot be adjusted according to the position of the color printing. If you need to print on some non-woven fabrics with different color printing specifications, you need to replace it with another color printing device that can print at that position, which is very troublesome to operate. Summary of the invention

[0003] The purpose of the present invention is to solve the above problems in the prior art and to propose a method for improving the surface quality of non-woven fabrics, which has the advantage of high color printing efficiency.

[0004] The purpose of the present invention can be achieved by the following technical solutions: A method for improving the surface quality of non-woven fabrics, comprising the following steps:

[0005] S1, pre-treating the surface of the non-woven fabric by a cleaning mechanism, removing stains by soaking and scrubbing, and then drying;

[0006] S2. Treat the surface of the non-woven fabric by a color printing device and a coating device to increase the waterproofness and antistatic properties of the non-woven fabric;

[0007] S3, finishing the surface of the non-woven fabric by a calendering mechanism and an ironing mechanism;

[0008] S4. Use high-pressure micro-mist humidification technology to treat non-woven fabrics by spraying micron-level water mist to increase the moisture content of non-woven fabrics.

[0009] Preferably, the color printing device in step S3 includes a working box, and the working box includes a conveyor belt symmetrically arranged on the bottom of the working box, a limiting mechanism symmetrically arranged on the bottom of the working box, and a color printing mechanism;

[0010] The limiting mechanism comprises a limiting frame installed on the bottom of the working box, a servo motor is installed on the limiting frame, a first transmission shaft is connected to the output shaft of the servo motor, a limiting disk is symmetrically installed on the first transmission shaft, and limiting grooves for limiting the upper and lower surfaces of the non-woven fabric are provided between the limiting disks, and the width of the limiting grooves gradually decreases from the direction of the limiting disk away from the first transmission shaft to the direction close to the first transmission shaft;

[0011] The color printing mechanism includes a first driving motor installed on one side of the working box, a first screw rod is drivingly connected to the output shaft of the first driving motor, a first sliding seat and a second sliding seat are installed on the first screw rod, the first sliding seat and the second sliding seat are connected through a connecting column, a first guide rail is installed on the top of the working box, a first sliding seat and a second sliding seat are slidably arranged on the first guide rail, a mounting frame is installed on the first sliding seat and the second sliding seat, a second driving motor is installed on one side of the mounting frame, a second screw rod is drivingly connected to the output shaft of the second driving motor, a second guide rail is installed on the mounting frame, a third sliding block is slidably arranged on the second guide rail, and the third sliding block is connected to the second screw rod;

[0012] A lifting frame is installed on the third sliding block, a lifting motor is installed on the lifting frame, a material storage box is installed on the lifting rod of the lifting motor, material delivery pipes are symmetrically installed on both sides of the material storage box, and a material storage cylinder for storing color printing liquid is installed on the material delivery pipe; a color printing frame is installed at the bottom of the material storage box, and a plurality of color printing nozzles are installed in an array on the color printing frame.

[0013] Preferably, it also includes a supporting mechanism, which includes a hydraulic cylinder and a supporting plate. A first groove is opened at the bottom of the working box, and a plurality of hydraulic cylinders are installed in the first groove. A supporting plate is fixed on the piston rod of the hydraulic cylinder to support the non-woven fabric surface during color printing.

[0014] Preferably, a friction damping pad is laid on the support plate.

[0015] Preferably, the bottom of the limiting plate located on the upper side of the first transmission shaft abuts against the upper surface of the non-woven fabric surface, and the top of the limiting plate located on the lower side of the first transmission shaft abuts against the lower surface of the non-woven fabric surface.

[0016] Preferably, a mounting plate is further installed on one side of the limit frame, and a sensor is installed downward on the mounting plate for detecting whether the plate surface is located below the estimated limit frame of the conveyor belt.

[0017] Preferably, the liquid storage cylinder has a feed port, and a closing cover is installed on the feed port.

[0018] Preferably, a control box is installed on the top of the working box to control the working and driving status of the working box.

[0019] Compared with the prior art, the advantages of the present invention are: by connecting the first sliding seat and the second sliding seat through a connecting column, and the sliding seat on each sliding seat can also be driven by the second driving motor to separately adjust the left and right positions, which is beneficial to increasing the lateral area of ​​color printing, and the first driving motor drives the first sliding seat and the second sliding seat to adjust the approximate color printing position, and then the second driving motor drives the color printing nozzle on the third sliding seat to perform further precise color printing position adjustment, which is beneficial to greatly improve the efficiency and quality of color printing. At the same time, the lateral color printing range of color printing can be increased by adding more first sliding seats and second sliding seats on the first screw rod and the first guide rail, which greatly improves the efficiency of color printing, has a high degree of mechanization, and greatly improves practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front cross-sectional view of the present invention.

[0021] Figure 2 It is a top view of the working box in the present invention.

[0022] Figure 3 It is a structural diagram of the components on the sliding seat in the present invention.

[0023] Figure 4 It is an enlarged view of point A in the present invention.

[0024] In the figure, 2, working box; 21, conveyor belt; 31, limit frame; 32, servo motor; 33, first transmission shaft; 34, limit plate; 35, limit slot; 41, first drive motor; 42, first screw rod; 43, first sliding seat; 44, second sliding seat; 45, connecting column; 46, first guide rail; 51, mounting frame; 52, second drive motor; 53, second screw rod; 54, third sliding block; 55, lifting frame; 56, lifting motor; 57, material storage box; 58, material delivery pipe; 59, material storage barrel; 61, color printing frame; 62, color printing nozzle; 71, hydraulic cylinder; 72, support plate; 721, friction shock pad; 73, first groove; 81, mounting plate; 82, sensor; 83, feed port; 84, closing cover; 9, control box. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] like Figures 1 to 4As shown, a method for improving the surface quality of a nonwoven fabric comprises the following steps:

[0027] S1, pre-treating the surface of the non-woven fabric by a cleaning mechanism, removing stains by soaking and scrubbing, and then drying;

[0028] S2. Treat the surface of the non-woven fabric by a color printing device and a coating device to increase the waterproofness and antistatic properties of the non-woven fabric;

[0029] S3, finishing the surface of the non-woven fabric by a calendering mechanism and an ironing mechanism;

[0030] S4. Use high-pressure micro-mist humidification technology to treat non-woven fabrics by spraying micron-level water mist to increase the moisture content of non-woven fabrics.

[0031] The color printing device in step S3 includes a working box 2, and the working box 2 includes a conveyor belt 21 symmetrically arranged on the bottom of the working box 2, a limiting mechanism symmetrically arranged on the bottom of the working box 2, and a color printing mechanism;

[0032] The limiting mechanism includes a limiting frame 31 installed on the bottom of the working box 2, a servo motor 32 is installed on the limiting frame 31, a first transmission shaft 33 is connected to the output shaft of the servo motor 32, a limiting plate 34 is symmetrically installed on the first transmission shaft 33, and a limiting groove 35 for limiting the upper surface and the lower surface of the non-woven fabric is provided between the limiting plates 34 and the limiting plates 34, and the slot width of the limiting groove 35 gradually decreases from the direction of the limiting plate 34 away from the first transmission shaft 33 to the direction close to the first transmission shaft 33;

[0033] The color printing mechanism includes a first driving motor 41 installed on one side of the working box 2, a first screw rod 42 is drivingly connected to the output shaft of the first driving motor 41, a first sliding seat 43 and a second sliding seat 44 are installed on the first screw rod 42, the first sliding seat 43 and the second sliding seat 44 are connected through a connecting column 45, a first guide rail 46 is installed on the top of the working box 2, the first sliding seat 43 and the second sliding seat 44 are slidably arranged on the first guide rail 46, a mounting frame 51 is installed on both the first sliding seat 43 and the second sliding seat 44, a second driving motor 52 is installed on one side of the mounting frame 51, a second screw rod 53 is drivingly connected to the output shaft of the second driving motor 52, a second guide rail is installed on the mounting frame 51, a third sliding block 54 is slidably arranged on the second guide rail, and the third sliding block 54 is connected to the second screw rod 53;

[0034] A lifting frame 55 is installed on the third sliding block 54, and a lifting motor 56 is installed on the lifting frame 55. A material storage box 57 is installed on the lifting rod of the lifting motor 56. Material delivery pipes 58 are symmetrically installed on both sides of the material storage box 57, and a material storage cylinder 59 is installed on the material delivery pipe 58 for storing color printing liquid; a color printing frame 61 is installed at the bottom of the material storage box 57, and a plurality of color printing nozzles 62 are installed in an array on the color printing frame 61.

[0035] By adopting the above structure, the first sliding seat 43 and the second sliding seat 44 are connected through the connecting column 45, and the sliding seat on each sliding seat can also be driven by the second drive motor 52 to adjust the left and right positions separately, which is beneficial to increasing the lateral area of ​​color printing. During color printing, the first driving motor 41 drives the first sliding seat 43 and the second sliding seat 44 to adjust the approximate color printing position, and then the second driving motor 52 drives the color printing nozzle 62 on the third sliding seat to perform further precise color printing position adjustment, which is beneficial to greatly improve the efficiency and quality of color printing. At the same time, more first sliding seats 43 and second sliding seats 44 can be added to the first screw rod 42 and the first guide rail 46 to increase the lateral color printing range of color printing, greatly improving the efficiency of color printing, with a high degree of mechanization and greatly improved practicality.

[0036] Specifically, if Figures 1 to 4 As shown, it also includes a supporting mechanism, which includes a hydraulic cylinder 71 and a supporting plate 72. A first groove 73 is opened at the bottom of the working box 2, and a plurality of hydraulic cylinders 71 are installed in the first groove 73. A supporting plate 72 is fixed on the piston rod of the hydraulic cylinder 71 for supporting the non-woven fabric surface during color printing.

[0037] By adopting the above structure and setting a supporting mechanism, during color printing, the support plate 72 is used to support the surface of the support plate 72 upward when the color printing liquid is sprayed out by the color printing nozzle 62. This structure is beneficial to prevent the non-woven fabric surface from being damaged when it is suspended in the air and is sprayed by the color printing nozzle 62, and the color printing yield rate is higher.

[0038] like Figures 1 to 4 As shown, a friction damping pad 721 is laid on the support plate 72. The friction damping pad 721 is provided to prevent the plate surface from being deflected by the color printing nozzle 62 during color printing, thereby increasing the area of ​​friction force, and facilitating better damping of the non-woven fabric surface, thereby greatly improving the efficiency and quality of color printing.

[0039] like Figures 1 to 4As shown, the bottom of the limiting plate 34 located on the upper side of the first transmission shaft 33 abuts against the upper surface of the non-woven fabric surface, and the top of the limiting plate 34 located on the lower side of the first transmission shaft 33 abuts against the lower surface of the non-woven fabric surface. The limiting plate 34 located on the upper side of the first transmission shaft 33 and the limiting plate 34 located on the lower side of the first transmission shaft 33 work together to better limit the non-woven fabric surface and achieve a better limiting effect.

[0040] like Figures 1 to 4 As shown, a mounting plate 81 is also installed on one side of the limit frame 31, and a sensor 82 is installed downward on the mounting plate 81 to detect whether the non-woven fabric surface is located below the estimated limit frame 31 of the conveyor belt 21. By providing the sensor 82, it is helpful to detect in real time whether the non-woven fabric surface is located below the estimated limit frame 31 of the conveyor belt 21, thereby preventing the occurrence of invalid color printing and greatly improving the quality and efficiency of color printing.

[0041] like Figures 1 to 4 As shown, the liquid storage cylinder has a feed port 83, and a cover 84 is installed on the feed port 83. Through the cover 84, when it is necessary to add color printing liquid, the cover 84 can be unscrewed to pour the color printing liquid into the liquid storage cylinder, which is convenient for adding. At the same time, during color printing, the gas of a large amount of color printing liquid in the liquid storage cylinder is prevented from emitting, which is beneficial to protecting the personal safety of the operator and reducing the dispersion of pungent odor.

[0042] like Figures 1 to 4 As shown, a control box 9 is installed on the top of the working box 2 for controlling the working and driving status of the working box 2 .

[0043] In the present invention, the control box 9 is prior art.

[0044] Controlling the driving mechanism and components in the working box 2 through the control box 9 is conducive to automatic control and a higher degree of automation.

[0045] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0046] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. At the same time, the meaning of "and / or" appearing in the full text is that it includes three schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0047] The above components are all common standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0048] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A method for improving the surface quality of a nonwoven fabric, comprising the following steps: S1. Pre-treating the surface of the non-woven fabric by a cleaning mechanism, removing stains by soaking and scrubbing, and then drying; S2. Treat the surface of the non-woven fabric by a color printing device and a coating device to increase the waterproofness and antistatic properties of the non-woven fabric; S3, finishing the surface of the non-woven fabric by a calendering mechanism and an ironing mechanism; S4. Use high-pressure micro-mist humidification technology to treat non-woven fabrics by spraying micron-level water mist to increase the moisture content of non-woven fabrics.

2. According to the method for improving the surface quality of non-woven fabrics according to claim 1, the color printing device in step S3 comprises a working box (2), the working box (2) comprises a conveyor belt (21) symmetrically arranged on the bottom of the working box (2), a limiting mechanism symmetrically arranged on the bottom of the working box (2), and a color printing mechanism; The limiting mechanism comprises a limiting frame (31) mounted on the bottom of the working box (2), a servo motor (32) being mounted on the limiting frame (31), a first transmission shaft (33) being transmission-connected to the output shaft of the servo motor (32), limiting plates (34) being symmetrically mounted on the first transmission shaft (33), limiting grooves (35) for limiting the upper and lower surfaces of the non-woven fabric being provided between the limiting plates (34), and the groove width of the limiting grooves (35) gradually decreasing from the direction of the limiting plate (34) away from the first transmission shaft (33) to the direction of the limiting plate (34) approaching the first transmission shaft (33); The color printing mechanism comprises a first driving motor (41) installed on one side of a working box (2); a first screw rod (42) is drivingly connected to the output shaft of the first driving motor (41); a first sliding seat (43) and a second sliding seat (44) are installed on the first screw rod (42); the first sliding seat (43) and the second sliding seat (44) are connected via a connecting column (45); a first guide rail (46) is installed on the top of the working box (2); and a first sliding seat is slidably arranged on the first guide rail (46). (43) and a second sliding seat (44), the first sliding seat (43) and the second sliding seat (44) are both installed with a mounting frame (51), a second driving motor (52) is installed on one side of the mounting frame (51), a second screw rod (53) is drivingly connected to the output shaft of the second driving motor (52), a second guide rail is installed on the mounting frame (51), a third sliding block (54) is slidably arranged on the second guide rail, and the third sliding block (54) is connected to the second screw rod (53); A lifting frame (55) is mounted on the third sliding block (54), a lifting motor (56) is mounted on the lifting frame (55), a material storage box (57) is mounted on the lifting rod of the lifting motor (56), material delivery pipes (58) are symmetrically mounted on both sides of the material storage box (57), and a material storage cylinder (59) is mounted on the material delivery pipe (58) for storing color printing liquid; a color printing frame (61) is mounted at the bottom of the material storage box (57), and a plurality of color printing nozzles (62) are mounted in an array on the color printing frame (61).

3. A method for improving the surface quality of nonwoven fabric according to claim 2, characterized in that: The invention also comprises a supporting mechanism, which comprises a hydraulic cylinder (71) and a supporting plate (72). A first groove (73) is provided at the bottom of the working box (2), a plurality of hydraulic cylinders (71) are installed in the first groove (73), and a supporting plate (72) is fixed on the piston rod of the hydraulic cylinder (71) for supporting the non-woven fabric surface during color printing.

4. A method for improving the surface quality of nonwoven fabric according to claim 3, characterized in that: A friction damping pad (721) is laid on the support plate (72).

5. A method for improving the surface quality of nonwoven fabric according to claim 2, characterized in that: The bottom of the limiting plate (34) located on the upper side of the first transmission shaft (33) abuts against the upper surface of the non-woven fabric surface, and the top of the limiting plate (34) located on the lower side of the first transmission shaft (33) abuts against the lower surface of the non-woven fabric surface.

6. A method for improving the surface quality of nonwoven fabric according to claim 2, characterized in that: A mounting plate (81) is also mounted on one side of the limit frame (31), and a sensor (82) is mounted downward on the mounting plate (81) for detecting whether the non-woven fabric surface is located below the estimated limit frame (31) of the conveyor belt (21).

7. A method for improving the surface quality of nonwoven fabric according to claim 2, characterized in that: The liquid storage cylinder is provided with a feed port (83), and a closing cover (84) is installed on the feed port (83).

8. A method for improving the surface quality of nonwoven fabric according to claim 2, characterized in that: A control box (9) is installed on the top of the working box (2) for controlling the working and driving state of the working box (2).

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