KR101378173B1 - Flocking method utilizing an ultra high molecular weight polyethylene fiber and clip using the same - Google Patents

Abstract

The present invention relates to a flocking method using an ultra high molecular weight polyethylene fiber and a clip using the same. The flocking method comprises a transplant fiber-pretreating step for manufacturing the transplant fiber by pretreating the bundle of transplant fiber yarn of an UHMWPE fiber; a step for arranging a mixed adhesive; a transplant fiber chamber environment-controlling step controlling the temperature and the moisture of an electrostatic transplant fiber chamber; an adhesive-spreading step spreading the mixed adhesive for forming a spread layer on a fiber target sheet; an electrostatic fiber-transplanting step electrostatically transplanting the transplant fiber on the fiber target sheet; a heat drying step drying the fiber target sheet with the transplant fiber attached; a quality test step for testing the quality of the transplant fiber dried in the heat drying step; a feedback control step controlling the result of the quality test by turning the sheet back to the transplant fiber chamber environment-controlling step and the electrostatic fiber-transplanting step. By the steps, the surface of the UHMWPE fiber is chemically modified so that the adhesion is improved, and by mixing adhesives with different physical properties in order to improve adhesive performance so that the sheet can be attached to most materials and UHMWPE which is inadhesive can be used as an electrostatic transplant fiber. [Reference numerals] (AA) Start; (BB) End; (S10-1) Pretreating transplant fiber; (S10-2) Preparing a mixed adhesive; (S10-3) Controlling the environment of a transplant fiber chamber; (S20) Coating adhesive; (S30) Electrostatically transplanting the fiber; (S40) Heat drying; (S50) Quality test

Description

FLOCKING METHOD UTILIZING AN ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE FIBER AND CLIP USING THE SAME}

The present invention relates to a method of flocking using ultra high molecular weight polyethylene (UHMWPE) fibers as a locking pile and a clip according to the method.

Flocking refers to the surface of the seedling sheet having a relatively opposite polarity to the seedling yarns by dispersing the woolen yarn in the space where the electric field is charged and charging the dispersed woolen yarn objects to give a constant electric charge. It is a technique to plant vertically on.

This flocking technology is applied to surface surfaces such as cloth and vinyl, and is used in various household goods such as carpets that require a soft texture and a beautiful appearance. Recently, in order to reduce noise or vibration of the contact portion of a vehicle, It is widely applied to the surface treatment of various interior and exterior materials such as weather strip, sun visor and clips.

In particular, the flocking material applied to the clip, weather strip, glass run way, etc., where friction contact occurs frequently, is exposed to the vibration of the vehicle, close sliding with the window, +50 ~ -40 ℃, etc. High wear resistance, lubricity, hydrophobicity, weather resistance, and joint prevention are required. However, the conventional woolen flock used for flocking does not satisfy such a requirement.

On the other hand, UHMWPE material has only a tenth of the abrasion resistance of Teflon (PTFE), and the friction coefficient is very low, so it is excellent in self-lubrication so that the contact sliding part does not need lubricant. In addition, the impact resistance similar to steel, excellent corrosion resistance and chemical resistance, and can be used continuously at +80 ~ -100 ℃, and wear resistance, impact resistance persists even under cryogenic temperature (-270 ℃).

As described above, the physical properties of UHMWPE are excellent materials that are very suitable as woolen yarns, but the defects that are fatal to use as woolen yarns are that they lack the chemical bonding position and have extremely poor adhesion to aqueous resins due to super water repellency. to be. therefore. Even if a wool yarn made of UHMWPE fiber yarn is applied to the adhesive (resin) layer on the seedling wool sheet, the wool yarn is easily removed from the adhesive and thus cannot be used as a wool yarn.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a flocking method and apparatus using UHMWPE fiber yarn.

The object of the above invention is to pretreat the yarn bundle of UHMWPE pre-treatment to prepare a wool fiber yarn, and to prepare a mixed adhesive, and to control the humidity and temperature of the electrostatic nursery chamber, In order to form a coating layer on the hair growth sheet, the adhesive applying step of applying the mixed adhesive, the electrostatic hair removal step of electrostatically cultivating the hair fiber fibers to the hair growth sheet, and drying the hair growth sheet with the hair fiber yarn A heat drying step, a quality inspection step of inspecting the quality of the flocked fiber yarn dried in the heat drying step, and a feed pack control step of controlling the result of the quality inspection step back to the environmental control step, the application step, and the electrostatic flocking step Is achieved by the way.

The pre-treatment step of the flocked fiber yarns is a surface modification step of imparting adhesion to the surface of the UHMWPE fiber yarn, which is a raw fiber yarn, with an adhesive (resin), and the length of the filament-modified UHMWPE fiber yarn is adjusted to a size suitable for use as a weft yarn. Consists of steps.

The surface modification of the UHMWPE fiber yarn is for imparting adhesiveness to the resin, preparing a raw material fiber yarn, one selected from sodium borohydride, anthraquinone and its derivatives, anhydrous dichloromethane, Or preparing a reaction solution by mixing one or more anhydrous organic solvents selected from dimethylformamide, immersing the raw fiber yarn in the reaction solution, and raw fiber yarn immersed in the reaction solution in an inert gas atmosphere. The surface of the flocked fiber yarn is modified by irradiating ultraviolet energy to the electron exchange reaction step of performing electron exchange reaction at a temperature of 70 to 90 ° C. for 50 to 70 hours.

As such, the surface of the UHMWPE deposited in the reaction solvent by the irradiation of the reaction solvent heated to a high temperature and ultraviolet rays generates fine cracks as the aging proceeds. Fine cracks on the surface improve adhesion.

In addition, since the physical properties of UHMWPE vary depending on the molecular weight, it can be selected according to the use. For example, the flocking sheet used for clips and the like is preferably UHMWPE fiber yarn having a molecular weight of 3 to 6 million grams / mole. And the thickness of the modified filament yarn is optionally used having a diameter of 0.1 to 1.0mm depending on the flocking use.

The step of preparing a mixed adhesive is to improve adhesion performance to most materials, comprising: preparing a first adhesive containing a polyurethane aqueous dispersant having terminally or side chain a polyether component containing a carboxyl group and ethylene oxide; Preparing a second adhesive containing an adhesion promoter containing an aqueous chlorinated polyolefin, a polyurethane aqueous dispersant, a vinyl acetate ethylene copolymer, a phenolic resin dispersion and an emulsion polymer, and the first adhesive and the second adhesive. And mixing the adhesive in a weight ratio of 1: 1.

In addition, an object of the present invention is to provide a pre-treatment apparatus for pre-treating a bundle of raw fiber yarns of UHMWPE fiber yarns to produce a flocked fiber yarn, a transfer line for continuously moving the seedling sheet, and a seedling sheet sheet that is continuously carried on the transfer line. An adhesive applying device for applying a mixed adhesive to the apparatus, an electrostatic nursery for weaving wool fiber yarn on the to-be-coated hair sheet to which the mixed adhesive is applied by the applicator, and an environment for controlling the temperature and humidity of the electrostatic wefting chamber A control device, a heat drying apparatus installed adjacent to the rear end of the electrostatic hairdressing chamber, a vision inspection apparatus installed adjacent to the rear end of the heat drying apparatus, and a determination result of the vision inspection apparatus are inputted, and the moving speed of the conveying line, It is achieved by a flocking device using ultra-high molecular weight flocked fiber yarns including a flock control device that controls the temperature and humidity of the electrostatic flocking chamber.

The pretreatment apparatus of the flocked fiber yarn includes a reaction vessel, a heating apparatus which maintains the reaction vessel at a predetermined temperature, a power supply unit of an ultraviolet irradiation lamp and an ultraviolet irradiation lamp in an upper space of the reaction vessel, and an inert gas which supplies an inert gas into the reaction vessel. It is preferable to include the electron exchange reaction apparatus containing a gas supply apparatus, and the flocked fiber yarn processing apparatus which processes the preprocessed raw material fiber yarn installed adjacent to the electron exchange reaction apparatus into the flocked fiber yarn.

The planting room environment control apparatus includes a humidifying unit and a heating unit in the planting chamber to maintain a uniform planting atmosphere, and it is preferable to control the humidifying unit and the heating unit to maintain a set temperature and humidity value.

The vision inspection device installs a digital camera in the final product line to produce and manufacture a certain quality, and captures and stores the image of the digital camera. And an image analysis system for analyzing the captured image data, and determining the seed density and uprightness of the image analysis results by feeding back to the conveying line to adjust the moving speed of the seedling sheet and the high pressure applied to the electrostatic seedling chamber. It is desirable to.

It is desirable to produce sheet-like flocking sheets using the methods and apparatus described above for use in a wide range of applications.

In addition, the noise-free clip of the automobile may be manufactured by adhering to the contact surface by interposing an adhesive on the non-clipping surface of the manufactured flocking sheet.

As a result, the present invention improves adhesion by chemically modifying the surface of UHMWPE fiber yarn, and further improves adhesion performance by adhering adhesives having different physical properties to adhere to most materials. It can be used as a wool fiber yarn.

1 is a process flow diagram of a flocking method according to an embodiment of the present invention.
FIG. 2 is a process flow chart of the wool fiber yarn pretreatment step shown in FIG. 1. FIG.
3 is a schematic structural diagram of a flocking device according to an embodiment of the present invention;
Figure 4 is a side cross-sectional view and enlarged view of a clip to which a flocking sheet manufactured by the flocking method of the present invention is applied.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a process flow chart of a flocking method according to an embodiment of the present invention, a pre-treatment step of preparing a fiber yarn by pre-treating the bundle of yarns of UHMWPE, preparing a mixed adhesive, and the humidity of the electrostatic weft chamber And, controlling the temperature of the weft chamber environment control step, the adhesive coating step of applying the mixed adhesive to form a coating layer on the hair growth sheet, the electrostatic hair-stamp step of electrostatic planting the wool fiber yarn to the seedling sheet, A heat-drying step of drying the sheet-fed hair sheets to which the flocked fiber yarns are attached, a quality inspection step of inspecting the quality of the frayed fiber yarns dried in the heat-drying step, and a determination result of the quality inspection step; And a feed pack control step of controlling to return to the electrostatic seedling step.

Hereinafter, the flocking method using the ultra high molecular weight flocked fiber yarn of the present invention will be described in detail step by step.

Wool fiber yarn pretreatment step (S10-1)

Figure 2 is a detailed process flow chart of the wool fiber yarn pretreatment step, the wool fiber yarn pretreatment step is a surface modification step to impart the adhesiveness with the adhesive (resin) on the surface of the UHMWPE fiber yarn which is a raw fiber yarn, as shown, The pretreatment step includes preparing a raw material fiber yarn, a process for preparing a reaction solution, immersing the raw material fiber yarn in the reaction solution, irradiating the raw material fiber yarn immersed in the reaction vessel with ultraviolet rays, and heating while irradiating the ultraviolet ray. It consists of a process of electron exchange reaction.

The preparation of the raw material fiber yarn is preferably UHMWPE having a molecular weight of 3 million to 6 million grams / mole having the best wear resistance property, and the thickness of the wool fiber yarn is selectively used in a diameter of 0.1 to 1.0 mm depending on the flocking use.

In the reaction solution preparation process, one kind selected from anthraquinone and its derivatives, and one anhydrous organic solvent selected from anhydrous dichloromethane or dimethylformamide are mixed.

In the step of dipping in the reaction solution, the raw fiber yarn is immersed in the reaction solution prepared as described above. In consideration of productivity, it is preferable to immerse a plurality of fiber bundles in a reaction container containing a reaction solution, and then to vibrate or stir the reaction solution while moving the raw material fiber yarn.

At this time, in order to prevent volatilization of the reaction solution and to prevent the discharge of toxic gas, the inside of the reaction container is preferably a closed structure, and an inert gas atmosphere such as nitrogen gas.

In the process of irradiating ultraviolet energy, ultraviolet light is irradiated to the reaction solution during the reaction by installing an ultraviolet lamp in the upper space of the reaction vessel so that the immersed raw fiber is exposed to ultraviolet light.

In the electron exchange reaction process, the reaction vessel is heated at a temperature of 70 to 90 ° C. for 50 to 70 hours while being exposed to ultraviolet rays to advance the electron exchange reaction.

As described above, by heating the raw material fiber yarn (UHMWPE) immersed in the reaction solution to the ultraviolet light, the surface of the raw material fiber yarn is subjected to the electron exchange reaction to break the molecular chain to generate fine cracks rough surface roughness. Raw fiber having a rough surface roughness greatly improves adhesiveness with the adhesive resin. Therefore, the raw material fiber yarn (UHMWPE) with improved adhesiveness can be used as a flocked fiber yarn as a ratio.

 As described above, the raw material fiber yarn having improved adhesiveness by chemical treatment is cut into a predetermined length according to the intended use and stored and used as a flocked fiber yarn.

Mixed adhesive preparation step (S10-2)

The mixed adhesive preparation step includes a first adhesive preparation process, a second adhesive preparation process, and a process of mixing the first and second adhesive agents.

In the first adhesive preparation process, a polyurethane aqueous dispersant having a polyether component containing a carboxyl group and an ethylene oxide in a terminal or side chain is mixed in a predetermined ratio so that the charged flocked fiber yarn is attracted to the adhesive layer and is easily flocked. The mixing ratio is adjusted experimentally to the proper viscosity. The flocked fiber is still chemically stable even though the surface is modified, so that the adhesive penetrates between the fine cracks formed on the surface, and is mainly bonded and bonded physically. Therefore, it is very important to maintain proper viscosity.

The step of preparing a second adhesive is a process of mixing an adhesion promoter and a dispersant for controlling the solidification reaction time between the planted wool fibers and the adhesive, the adhesion promoter containing an aqueous chlorinated polyolefin, a polyurethane aqueous dispersant, and vinyl acetate Ethylene copolymer, phenol resin dispersion and emulsion polymer are mixed.

The mixing of the adhesive may include the first adhesive and the second adhesive in a weight ratio of 1: 1 at the point of applying the adhesive to the seedling sheet to minimize the modification caused by the chemical reaction between the first adhesive and the second adhesive. It is preferable to mix and use by one.

Food room environment control step (S10-3)

In the environment of the electrostatic hair chamber, it is preferable to control and maintain the humidity and temperature of the hair chamber in an appropriate range before and during the hair transplant process. In particular, in the case of using an aqueous adhesive, the humidity of the wefting chamber is sensitive to the softening state of the adhesive surface, and the temperature affects the softening state and the solidification (curing) reaction of the adhesive. Therefore, appropriate temperature and humidity are maintained in accordance with the type of adhesive used and the moving speed (retention time) of the seedling sheet in the seedling chamber. Therefore, a temperature sensor and a humidity sensor are provided inside the planting chamber, and the environment of the planting chamber is controlled by a humidifier and an air circulation system installed in the planting chamber by comparing the measured values and the set values of the sensing sensors.

Adhesive coating step (S20)

In the mixed adhesive preparation step (S10-2), it is preferable to apply the first adhesive and the second adhesive to the seedling hair sheet while mixing. The first and second adhesives are stored in separate containers so that the embryonic hair sheets are mixed just before entering the wefting chamber in a beltline form and applied onto the embryonic hair sheets. At this time, it is preferable to adjust application | coating thickness with the knife etc. arrange | positioned in the horizontal direction on a to-be-coated hair sheet.

Blackout planting step (S30)

The electrostatic hair-flation operation is a space for planting the flocked fiber yarn processed with short fibers in an upright state with an overall uniform density on the adhesive layer applied to the surface of the hair to be fed. An adhesive-coated epidermis sheet is charged by applying a high pressure between the embryonic electrode disposed in the upper space and the epidermis sheet while passing through the nursery space at a predetermined moving speed. The unit flocked fiber flows into the charged electric field space and is charged with opposite charge to the seedling hair sheet while passing through the hairfighting electrode. Accelerated by dragging.

The end of the united filament yarn which is accelerated and moved toward the to-be-eaten sheet is impeded by the inertia force, while being stuck to the adhesive layer by inertial force.

At this time, the seedling density of the united yarn of the seedling mother sheet is affected by the magnitude of the applied voltage, the distance between the charged seedling electrode, the moving speed (retention time) of the seedling mother sheet, the temperature of the seedling chamber, and the humidity. Therefore, it is desirable that these process variables be adjusted appropriately.

Heat drying step (S40)

In the heat-drying step, the adhesive of the coated layer in which the woolen yarn is grafted is heat-dried to fix the woolen yarn on the seedling sheet. The heat drying method is preferably dried by an infrared heater or an infrared lamp in which no air flow occurs in order to keep the woven fiber yarn upright. In order to ensure drying time, the heat-drying chamber may be arranged in a long tunnel form in a straight shape or in a U-shape in order to save space.

Quality inspection step (S50)

The hair density, upright state, and the like on the seeded and heat-dried eggplant sheets are inspected by a camera and a vision system that analyzes the images captured by the camera. According to the inspection result of the vision system, process variables such as humidity, temperature, high voltage, and moving speed of the electrostatic cap are controlled.The correlation between these process variables and product quality is preferably derived from the operation performance. Do.

The flocking method using the ultra high molecular weight flocked fiber yarn of the present invention has been described above, and the flocking device will be described below.

Figure 3 is a schematic configuration diagram of the flocking device according to an embodiment of the present invention, as shown, the flocking device of the present invention, pre-treat the raw material fiber yarn (RF) bundle of UHMWPE fiber yarn flocking fiber yarn (FP) To apply a mixed adhesive on the pre-treatment apparatus 100 for manufacturing a, the transfer line CL for continuously moving the hair to be fed sheet FS, and the seedling sheet FS continuously carried in the transfer line CL. The temperature and humidity of the adhesive application device 200, the electrostatic hair chamber 300 for electrostatically cultivating the human hair fiber yarn FP on the seedling sheet FS to which the mixed adhesive is applied, and the electrostatic hair chamber 300 The hair dryer environment control apparatus 400 for controlling, the heat drying apparatus 500 which is installed adjacent to the rear end of the electrostatic nursery chamber 300, and the vision inspection apparatus 600 which is installed adjacent to the rear end of the heat drying apparatus 500. And, receiving the determination result of the vision inspection device 600, the moving speed of the transfer line (CL), the electrostatic hair chamber 300 It includes an implanted control unit 700 to control the temperature and humidity.

The pretreatment device 100 of the flocked fiber yarn is a batch treatment device for chemically modifying the surface of the raw fiber yarn (RF), and includes a reaction vessel 111 for filling a chemical reaction liquid and a reaction vessel 111 for promoting the reaction. A heating device 112 including a heating element and a temperature control device for maintaining the reaction solution at a predetermined temperature, and an ultraviolet irradiation device 113 including an ultraviolet irradiation lamp and a power supply in the upper space of the reaction vessel 111, and a reaction; Electron exchange reaction apparatus 110 including an inert gas supply device 114 for supplying an inert gas to the inner space of the container 111 and the raw material fiber yarn (RF) installed adjacent to the electron exchange reaction apparatus 110 and pretreated. It includes a cutter 122 for cutting the unit hair fibers (FP), a storage hopper 124 for storing and storing the cut unit hair fibers (FP) and the ejector 126 for discharging the stored unit hair fibers (FP) .

The reaction vessel 111 has a structure of gas sealing, fills the reaction liquid in the lower space, secures a space in the upper portion, installs a plurality of ultraviolet irradiation lamps, and supplies power from the outside of the reaction vessel 111. And in order to set and control the temperature of the reaction solution, a heating element is installed in the lower part and a heating device 112 having a temperature control function is installed outside. The heating device 112 is preferably provided with a temperature setting and control function and a set temperature maintenance timer.

The ultraviolet irradiation device 113 is provided with a plurality of ultraviolet lamps in the upper space of the reaction vessel 111 and has a power supply outside. In order to protect the ultraviolet lamp from the steam generated in the reaction vessel 111, it is preferable to protect with a quartz tube and the like excellent in ultraviolet transmission power.

The inner space of the reaction vessel 111 is purged with an inert gas such as nitrogen gas from the gas supply device 114 to make an inert gas atmosphere.

The raw material fiber yarn (RF), which is deposited in the reaction vessel 111 and chemically treated for a predetermined time, and whose surface is modified, is moved to an adjacent storage hopper 124. The upper part of the storage hopper 124 is provided with a rotary cutter 122 engaged with a dual roller blade to pass through the modified raw fiber yarn (RF) to cut into a predetermined length to make a unit flocked fiber yarn (FP). The united filament yarn FP is stored and stored in the storage hopper 124, and is discharged and transferred to the electrostatic weft chamber 300 by an ejector 126 composed of a rotary rotary roller mounted at the bottom thereof in use. The ejector 126 is not necessarily limited to the rotary rotary roller as long as it can smoothly eject the cut unit wool fibers from the storage hopper 124.

The flocking apparatus of the present invention is a continuous process in which all of the excepting the pretreatment apparatus 100 are continuously processed in a batch. As shown in FIG. 3, the seedling hair sheet FS wound on the fabric feed roll RR is unwound from the fabric feed roll RR and passes through the electrostatic hair chamber 300 and the heat drying apparatus 500. It is wound around odor WR.

In the coating apparatus 200, the adhesive agent from the first adhesive agent, the second adhesive container 210, and each adhesive container 210 is supplied to a hopper gate 220 installed at a lower portion thereof. The front end of the lower end of the hopper gate 220 is in close contact with the moving pigtail sheet (FS), the rear end is provided with a vertically movable gate (not shown) to control the adhesive coating thickness. The seedling hair sheet FS is adhered to the high-capacity gate 220 of the adhesive coating device 200 immediately before entering the electrostatic hair chamber 300, and the adhesive is applied to the upper surface thereof.

The electrostatic hair chamber 300 is provided with an inlet 320 and an air curtain outlet 330 through which the seedling sheet FS having a narrow gap in the horizontal direction is formed on the front and rear sides thereof. In addition, the air curtain outlet 330 is provided with an air curtain outlet 330 provided with an air curtain having a cover shape covering a narrow gap formed in the horizontal direction in the vertical direction, and blows air from the outside into the cover space to float and float. The unit flocked fiber yarns (FP) are scattered to prevent the outflow to the outside of the electrostatic tuft chamber 300. At this time, the air blown from the outside to the cover space is preferably inhaled and circulated in the electrostatic tuft chamber 300 for maintaining the humidity and temperature.

In addition, a ground electrode is installed at the lower portion of the electrostatic cultivating chamber 300, and an electrode for applying a high pressure having a positive potential relative to the ground electrode is installed at the upper portion thereof to be connected to the output terminal of the high voltage supply device 310. .

The nursery environment controller 400 controls the heating unit 420 to maintain the set temperature and humidity of the electrostatic nursery chamber 300, and includes a humidifying unit 410 and a heating unit 420. The humidification unit 410 includes a humidity sensor 412 installed inside the electrostatic nursery chamber 300, a humidifier unit 410, and a control device for controlling a difference between a measured value and a set value of the humidity sensor 412. Include. However, the humidifying unit 410 is not limited to being installed inside, if it can circulate the humidity-controlled air from the outside.

The thermal drying apparatus 500 is installed adjacent to the rear end of the electrostatic tufting chamber 300, and installs a tunnel through which the seedling hair sheet FS into which the wool fiber yarn FP is planted passes, and an infrared heater at the upper part of the tunnel interior space. Install an infrared lamp. In order to secure a sufficient drying time, the heat-drying tunnel may be arranged in a long tunnel form in a straight form or in a U-shaped form in order to save space.

The vision inspection apparatus 600 stores and processes the digital camera 610 installed on the top of the seedling sheet between the heat drying apparatus 500 and the winding machine WR and the image signal captured by the digital camera 610. And an image analysis system 620. The image analysis system 620 outputs a quantified numerical value by comparing and analyzing the seedling density and uprightness with the pre-stored standard image or its converted value from the captured image.

The hair transplanting control device 700 is composed of a computing device, an input device, a computer equipped with an output device, or a programmable logic controller (PLC), and the like, and receives numerical values such as density and uprightness quantified by the vision inspection device 600. , The control value calculated according to the control equation obtained from the experimental or operational performance data in advance is fed back to the transfer line CL to control the speed of the winder 800, and the moving speed of the hair to be fed sheet FS and the electrostatic hair chamber ( Adjust the high pressure applied to the 300).

Using the above-mentioned flocking method and apparatus, sheet-like flocking sheets can be produced and applied to a wide range of fields. Since a flocking sheet is normally produced continuously, it has a roll shape. The flocking sheet thus prepared is used by applying an adhesive to the object or applying the adhesive to the flocking sheet itself in order to apply to the application object. In addition, it is more convenient to manufacture a flocking sheet to which an adhesive tape is attached by adding a step of attaching a double-sided tape to an unhaired surface in a manufacturing process.

Fig. 4 is a side cross-sectional view and enlarged view of a car clip 10 to which a flocking sheet made by the above-described method and apparatus is applied. The car clip 10 is used to mount an interior article or accessory of a car interior or a door. And the car clip 10 is preferably noise does not occur in the vibration and shock constantly received when driving the vehicle. As shown, the flocking sheet is composed of the tuft sheet layer 16 and the tuft layer 18, and the tuft layer 18 attached to the surface of the clip 10 has a buffer action to absorb vibrations and shocks so that noise Is prevented.

The automobile clip 10 is attached to the surface of the clip body portion 12 of the elastic body accommodated in the insertion hole, the adhesive layer 14, the adhesive layer 14 applied to the surface of the clip body portion 12, as shown It consists of the woolen sheet layer 16 and the woolen layer 18 which become. Since the seedling sheet layer 16 and the seedling layer 18 are manufactured by coalescing, the flocking sheets 16 and 18 are cut in advance to fit the shape of the clip 10, and the clip body portion to which the adhesive layer 14 is applied ( 12) is attached.

RF: Raw Material Fiber Yarn FP: Wool Fiber Yarn
FS: Etched hair sheet
100: pretreatment device 110: electron exchange reaction device
111: reaction vessel 112: heating apparatus
113: ultraviolet irradiation device 114: inert gas supply device
120: fiber yarn processing apparatus 122: cutting machine
124: storage hopper 126: ejector
200: coating device 210: adhesive container
220: hopper gate
300: electrostatic wedding chamber 310: high pressure supply
320: seedling sheet entrance 330: air curtain exit
400: environmental controller 410: humidification unit
412: humidity sensor 420: air heater
422: temperature sensor 424: blower
500: heat drying device
600: vision inspection device 610: digital camera
620: image analysis system 700: planting control device
10: clip 12: clip body portion
14: adhesive layer 16: planting sheet layer
18: seedling layer

Claims (10)

A pre-treatment step of flocked fiber yarn for pre-treating a bundle of yarns of UHMWPE fiber yarn,
Preparing a mixed adhesive,
Environmental control step for controlling the humidity and temperature of the electrostatic nursery,
An adhesive coating step of applying the mixed adhesive to form a coating layer on the seedling hair sheet,
An electrostatic weaving step of electrostatically weaving the weaving fiber yarns into the seedling hair sheet;
A heat-drying step of drying the hair-coated sheet to which the hair-fiber yarn is attached;
A quality inspection step of inspecting the quality of the flocked fiber yarn in the heat drying step;
Flocking method using an ultra-high molecular weight flocked fiber yarn comprising a feed pack control step of controlling the determination result of the quality inspection step back to the environmental control step, the application step, the electrostatic flocking step.
The method according to claim 1,
The pre-treatment step of the wool fiber yarn is prepared by the step of preparing the raw material fiber yarn, one selected from sodium borohydride, anthraquinone and derivatives thereof, and one type selected from anhydrous dichloromethane or dimethylformamide. Preparing a reaction solution by mixing anhydrous organic solvent, immersing the raw material fiber yarn in the reaction solution, irradiating ultraviolet energy to the raw material fiber yarn immersed in the reaction solution in an inert gas atmosphere; , Flocking method using ultra-high molecular weight flocked fiber yarns by providing an adhesive property to the surface of the flocked fiber yarns by an electron exchange reaction step of electron exchange reaction for 50 to 70 hours at a temperature of 70 ~ 90 ℃.
The method according to claim 2,
In the raw fiber yarn preparation step, the raw fiber yarn is characterized in that the molecular weight of 3 million to 6 million grams / mole and the thickness of the wool fiber yarn is ultra-high molecular weight polyethylene (UHMWPE) having a diameter of 0.1 to 1.0mm Flocking method using.
The method according to claim 1,
The preparing of the mixed adhesive may include preparing a first adhesive containing a polyurethane aqueous dispersant having a polyether component containing a carboxyl group and an ethylene oxide as a terminal or a side chain;
Preparing a second adhesive comprising an adhesion promoter containing an aqueous chlorinated polyolefin, a polyurethane aqueous dispersant, a vinyl acetate ethylene copolymer, a phenolic resin dispersion and an emulsion polymer,
Flocking method using ultra-high molecular weight flocked fiber yarn, characterized in that it comprises a mixing step of mixing the first adhesive and the second adhesive in a weight ratio 1: 1.
delete delete delete delete A flocking sheet produced in the form of a sheet using the method of any one of claims 1 to 4.
An automobile clip manufactured by bonding a flocking sheet manufactured in the form of a sheet using the method of any one of claims 1 to 4 to an at least a portion of an automobile clip by interposing an adhesive on an unplanted surface.

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