69 results about "Masking tape" patented technology

To provide a masker tape which has adequate strength and adhesive force, and thereby can prevent cutting in recover, and can prevent a surface to be cured from being peeled.SOLUTION: A masker tape 1 for curing a surface 100 to be cured includes an upper layer tape 10 having an adhesive layer 12 on its rear face, a lower layer tape 20 having an adhesive layer 22 on its rear face, and a film 30 stuck to the adhesive layer of the upper layer tape. The adhesive force of the adhesive layer of the lower layer tape is smaller than the adhesive force of the adhesive layer of the upper layer tape, the width of the lower layer tape is smaller than the width of the upper layer tape, the one end face of the upper layer tape and the end face of the lower layer tape are substantially flush with each other, and the adhesive layer of the upper layer tape is covered with the lower layer tape and the film without a gap. The masker tape has a two-layer structure, and thereby is hard to be cut when being peeled from the surface to be cured. The width of the lower layer tape is smaller than the width of the upper layer tape, and thereby is easy to be bent when being stuck onto the surface to be cured.SELECTED DRAWING: Figure 1

The utility model provides a stackable high-temperature shielding adhesive tape roll. The stackable high-temperature shielding adhesive tape roll comprises an adhesive tape inner cylinder and an adhesive tape body wound on the outer surface of the adhesive tape inner cylinder, the adhesive tape inner cylinder comprises a limiting groove, a cylinder body and a limiting block; one end of the barrel is provided with a limiting groove, and the other end of the barrel extends to form a limiting block; the limiting blocks are matched and connected with the limiting grooves; the adhesive tape body comprises a nano aluminum oxide coating, a base material layer, a composite adhesive layer and a release film layer; the surface of the base material layer is coated with nano aluminum oxide to form a nano aluminum oxide coating, and the other surface of the base material layer is provided with a composite adhesive layer; and a release film layer is arranged on the other surface of the composite adhesive layer. The limiting blocks are arranged to be matched with the limiting grooves, and the trapezoid-rectangle matching design is adopted, so that rapid alignment and rigid locking are achieved; and the rotating shaft is arranged in the barrel, so that the adhesive tape can be stably held by a single hand, smooth tearing is ensured, high-temperature warping can be reduced, and the using fitting degree of the adhesive tape is improved.

The utility model relates to the technical field of masking tape production, and discloses a masking tape rewinding machine with a flattening structure, which comprises a base, the top end of the base is fixedly connected with a support frame, and the front end of the left side of the top of the base is fixedly connected with a support rod. According to the masking tape rewinding machine with the flattening structure, a second hydraulic cylinder and a limiting roller are arranged, the second hydraulic cylinder drives the limiting roller to ascend and descend through a connecting frame, so that masking tape can be limited, the masking tape is prevented from being stuck together in the conveying process, a first hydraulic cylinder drives a pressing roller to ascend and descend, the position of the pressing roller is adjusted, and the working efficiency is improved. The limiting spring can enable the pressing roller to abut against the top end of the winding roller through the elasticity of the limiting spring, the pressing roller can flatten the masking tape wound outside the winding roller, wrinkles are prevented from being generated in the winding process, and the problems that the wound masking tape is inconvenient to flatten, and the quality of the masking tape is likely to be affected are solved.

The utility model discloses an automatic shearing machine for labeling after winding. Comprising a machine body, a masking tape placing seat and an empty disc placing area which are arranged at the top of the machine body, a discharging carrying mechanism arranged on the bottom side of the machine body, a masking tape shearing mechanism arranged below the masking tape placing seat, a feeding motor mechanism arranged on one side of the masking tape shearing mechanism, and a counting track arranged below the feeding motor mechanism, the pneumatic shearing mechanism is arranged below the masking tape shearing mechanism, the transition rail is arranged at the bottom of the pneumatic shearing mechanism, the material belt buffer area is arranged below the transition rail, the positioning and winding mechanism is arranged above the discharging and carrying mechanism, the disc placing mechanism is arranged below the empty disc placing area, and the masking tape pressing rod is arranged on one side of the positioning and winding mechanism. And the rotary labeling mechanism is arranged close to the positioning winding mechanism. By means of the structure, automatic reel changing, winding, masking tape pasting, label printing and label pasting work can be completed, manpower is saved, meanwhile, efficiency is improved, and practicability is high.

This protective grille is designed to prevent carbon monoxide poisoning due to incomplete combustion and fires caused by abnormal ignition of gas appliances during painting work in apartment buildings and other buildings. This grille protects areas that should not be stained by paint, even if the gas appliance's intake and exhaust ports are covered. This can lead to malfunctions and fires. Currently, when painting large apartment buildings (approximately 100 units), even if residents are informed not to use their gas appliances during painting work on a particular floor, they may still accidentally use them. The Director of the Gas Safety Office, Safety Group, Ministry of Economy, Trade and Industry (METI) has requested cooperation from the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) and the Construction Economics Bureau regarding the prevention of carbon monoxide poisoning caused by blockages in gas appliance intakes and exhaust ports during painting work. It has been reported that 54 such accidents occurred over the five years from 2017 to 2021. When painting, painters cover the air intake and exhaust vents with vinyl, then immediately cut them out with a utility knife and use masking tape to ensure proper ventilation. However, even if multiple people cut out the numerous intake and exhaust vents with a utility knife, someone may lose concentration and end up with a loose opening, resulting in a clogged vent and incomplete combustion. This product is made of cardboard treated with a flame retardant and consists of a right-side component, a left-side component, and an adjustment component for adjusting the horizontal width. Since the width of the intake and exhaust vents varies depending on the building, this can be adjusted. (The vertical size is long enough to accommodate this product.) Once assembly is complete, the intake and exhaust vents are attached and secured with paper masking tape. In particular, when painting the eaves, the walls and floors must all be covered with vinyl, so vinyl is applied to the walls, and then the vinyl is cut with a utility knife to fit the size of the product that has already been installed and fixed, and then connected to the product with paper masking tape. In the area where the masking tape will be applied, cellophane tape is attached to the cardboard, so by applying the paper masking tape to that area, the cellophane tape and paper masking tape can be peeled off cleanly when the product is removed, so it can be reused several times.(Since cellophane tape has excellent adhesive properties for cardboard, paper masking tape will not pull on the cellophane tape and the surface of the cardboard will not peel off.) It protrudes diagonally about 10 to 12 cm from the opening line of the existing air intake and exhaust vents, has a wide opening, and has an exhaust vent at the top. There is a covering part at the top as shown on pages (5), (6), and (7), so paint cannot get in and exhaust can be released, so gas appliances can be used without any problems.

The utility model relates to a waterproof and breathable masking paper composite adhesive tape which comprises a reel and an adhesive tape body, the adhesive tape body is of a four-layer structural design and comprises an anti-sticking layer, a base material layer, a waterproof and breathable layer and an adhesive layer which are sequentially connected from the outer layer to the inner layer, the manufacturing process of the adhesive tape is simplified, and the production efficiency is improved; the anti-sticking layer comprises polytetrafluoroethylene and a titanium dioxide / graphene coating and is used for improving the anti-sticking effect and the ultraviolet-proof performance of the adhesive tape; the waterproof breathable layer comprises expanded polytetrafluoroethylene and nanofibers and is used for improving the waterproof and breathable performance of the adhesive tape and ensuring that the stable effect can be kept in various environments; the adhesive layer comprises polyurethane, a water-based acrylic pressure-sensitive adhesive and an organic silicon modifier, and nano silicon dioxide is uniformly distributed in the water-based acrylic pressure-sensitive adhesive; the adhesive force of the adhesive tape can be improved, cohesive strength is enhanced, weather resistance is improved, aging is delayed, degumming and wiredrawing phenomena are reduced, adhesive residues are reduced, and use experience is improved.

The invention discloses a container ship skirting line coating shielding adhesive tape pasting tool, and belongs to the technical field of ship building. Comprising a support and a coating masking tape feeding mechanism, four universal wheels are arranged below a platform, a boss is arranged above the platform, a guide wheel mounting plate is arranged on the left side of the boss, and a guide wheel is mounted on the guide wheel mounting plate; an adhesive tape inner support and a tape pressing roller mounting plate of the coating shielding adhesive tape feeding mechanism are fixed on a boss, the axis of the adhesive tape inner support is perpendicular to the boss, a tape pressing roller mounted on a tape pressing roller shaft mounting plate is arranged on the right side of the boss, the axis of the tape pressing roller is parallel to the axis of the adhesive tape inner support, and the tape pressing roller and a guide wheel are arranged on the front side of the boss. When the skirting line coating masking tape pasting tool is used, the processes of measuring, marking and cutting the masking tape are omitted, and the accuracy and tidiness during pasting can be guaranteed through direct pasting. Particularly, the guide wheel in the support can support the pasting tool to slide along the wall, the contact area between the guide wheel and the wall is small, the wall cannot be scratched, friction force is small, and operation is labor-saving.

This disclosure relates to a method for strengthening wind turbine blades. The method includes: grinding the surface of the blade body; applying masking tape to the blade body to form a ring structure, thus defining the ground area as a treatment area; applying an elastic protective material to the treatment area to form an elastic protective layer; applying an anti-icing protective layer onto the elastic protective layer; and removing the masking tape. By applying an elastic protective material to the blade body surface and then applying an anti-icing protective layer, a layered protective structure is formed. When the blade rotates, the elastic protective layer provides elastic cushioning for rainwater or sand impacting the blade, thereby protecting the blade body from damage. The anti-icing protective layer, while providing basic protection, also reduces the ice adhesion strength on the blade body surface, thus preventing ice buildup. Furthermore, this method can reduce the difficulty of strengthening the blades of in-service turbines and improve construction efficiency.

This protective grille is designed to prevent carbon monoxide poisoning due to incomplete combustion and fires caused by abnormal ignition of gas appliances during painting work in apartment buildings and other buildings. This grille protects areas that should not be stained by paint, even if the gas appliance's intake and exhaust ports are covered. This can lead to malfunctions and fires. Currently, when painting large apartment buildings (approximately 100 units), even if residents are informed not to use their gas appliances during painting work on a particular floor, they may still accidentally use them. The Director of the Gas Safety Office, Safety Group, Ministry of Economy, Trade and Industry (METI) has requested cooperation from the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) and the Construction Economics Bureau regarding the prevention of carbon monoxide poisoning caused by blockages in gas appliance intakes and exhaust ports during painting work. It has been reported that 54 such accidents occurred over the five years from 2017 to 2021. When painting, painters cover the air intake and exhaust vents with vinyl, then immediately cut them out with a utility knife and use masking tape to ensure proper ventilation. However, even if multiple people cut out the numerous intake and exhaust vents with a utility knife, someone may lose concentration and end up with a loose opening, resulting in a clogged vent and incomplete combustion. This product is made of cardboard treated with a flame retardant and consists of a right-side component, a left-side component, and an adjustment component for adjusting the horizontal width. Since the width of the intake and exhaust vents varies depending on the building, this can be adjusted. (The vertical size is long enough to accommodate this product.) Once assembly is complete, the intake and exhaust vents are attached and secured with paper masking tape. In particular, when painting the eaves, the walls and floors must all be covered with vinyl, so vinyl is applied to the walls, and then the vinyl is cut with a utility knife to fit the size of the product that has already been installed and fixed, and then connected to the product with paper masking tape. In the area where the masking tape will be applied, cellophane tape is attached to the cardboard, so by applying the paper masking tape to that area, the cellophane tape and paper masking tape can be peeled off cleanly when the product is removed, so it can be reused several times.(Since cellophane tape has excellent adhesive properties for cardboard, paper masking tape will not pull on the cellophane tape and the surface of the cardboard will not peel off.) It protrudes diagonally about 10 to 12 cm from the opening line of the existing air intake and exhaust vents, and the opening width is also wide, so there is no problem using gas appliances.

To provide an adhesive composition capable of yielding an adhesive that exhibits a well-balanced combination of adhesive properties (adhesion, tack) and peelability on various substrates, and particularly an acrylic resin composition for use as masking tapes that does not leave any residue.SOLUTION: An adhesive composition containing an acrylic resin (A) and a crosslinking agent (B), in which, relative to all structural units of the acrylic resin (A), the content of structural units derived from 1-methylheptyl (meth)acrylate (a1) is 10 to 90 wt.%, and the content of structural units derived from an ethylenically unsaturated monomer (a2) containing a functional group is 0.1 to 10 wt.%, and the crosslinking agent (B) includes a metal chelate-based crosslinking agent (b1).SELECTED DRAWING: None

1. Name of the Design Product: Adhesive Tape Helper (Single Roll). 2. Use of the Design Product: It is used to paste masking tape on areas such as the ground or walls. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective View.

The invention discloses a method for reducing airplane horizontal tail functional coating paint peeling by optimizing the boundary transition length. The method comprises the steps that A, the requirement for polishing a transition slope on the boundary of a special functional coating is stipulated; b, selecting a matched masking tape; c, determining a grinding transition slope area; d, pretreatment is conducted on the polished transition slope area; e, the ground transition slope area is ground; and F, the transition area is cleaned and polished. Based on an existing airplane horizontal tail functional coating polishing process, a novel special functional coating polishing method is formed, and the problem that a special functional coating in an airplane horizontal tail boundary area falls off is solved.

The present invention relates to the technical field of masking tape, and solves the technical deficiencies that the functional layer structure and its component ratio of existing products are unreasonable, the tape has poor UV resistance, and there is residual glue after long-term adhesion and removal. The technical solution includes a release layer, a masking paper substrate layer and an adhesive layer. An ultraviolet absorption coating is applied on the masking paper substrate layer to form an ultraviolet absorption layer, and an ultraviolet reflection coating is applied on the ultraviolet absorption layer to form an ultraviolet reflection layer; the ultraviolet absorption coating contains benzophenone and / or octyl dimethylaminobenzoate and / or resorcinol monobenzoate; the ultraviolet reflection coating contains nano-titanium dioxide and / or zinc oxide. The beneficial effects of the present invention are as follows: The hierarchical design and component ratio of the anti-UV functional layer structure are optimized. After most of the ultraviolet rays are reflected by the ultraviolet reflection layer, the remaining ultraviolet rays are completely absorbed by the ultraviolet absorption layer, blocking the damage of ultraviolet rays to the adhesive layer, reducing the coating dosage, having a better anti-UV effect, and there will be no residual glue after the tape is removed.

The utility model provides a hot-pressing film laminating device for row-shaped wire harnesses, which relates to the technical field of row-shaped wire harness processing and comprises a wire harness shaping mechanism, a hot-pressing film breaking mechanism, a wire harness cutting mechanism and a wire harness pulling mechanism which are sequentially arranged from front to back, and a hot-melting film supply mechanism and a hot-melting film clamping mechanism are respectively arranged on two sides of the hot-pressing film breaking mechanism; the problems that in the prior art, due to the fact that the structure of the wire harness is kept stable by pasting masking tape, the tape needs to be removed subsequently, and labor and time are wasted are solved.

The utility model belongs to the technical field of masking tape, and particularly relates to a high-toughness masking tape, which comprises a winding drum, a masking tape is wound on the surface of the winding drum and comprises a base material, a scissor-type fixing tape is fixedly mounted in the middle of the working surface of the base material, and the scissor-type fixing tape is fixed on the winding drum. A plurality of groups of acrylate pressure-sensitive adhesives are arranged on the working surface of the base material, a double-sided adhesive layer is fixedly mounted on the outer side of each acrylate pressure-sensitive adhesive, and a release film is fixedly mounted on the back surface of the base material. Through the structural design of the base material, the scissor-type fixing band, the acrylate pressure-sensitive adhesive, the double-sided adhesive layer and the release film and the mutual cooperation of the configuration, the function of improving the toughness of the masking paper adhesive tape is realized, so that external force can be dispersed, local stress concentration of masking paper is reduced, the overall tensile strength and tear resistance of the masking paper adhesive tape are improved, and the service life of the masking paper adhesive tape is prolonged. Meanwhile, the defect that the flexibility of the masking tape is reduced due to traditional comprehensive filling of a plastic tape is avoided.

This protective grille is designed to prevent carbon monoxide poisoning due to incomplete combustion and fires caused by abnormal ignition of gas appliances during painting work in apartment buildings and other buildings. This grille protects areas that should not be stained by paint, even if the gas appliance's intake and exhaust ports are covered. This can lead to malfunctions and fires. Currently, when painting large apartment buildings (approximately 100 units), even if residents are informed not to use their gas appliances during painting work on a particular floor, they may still accidentally use them. The Director of the Gas Safety Office, Safety Group, Ministry of Economy, Trade and Industry (METI) has requested cooperation from the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) and the Construction Economics Bureau regarding the prevention of carbon monoxide poisoning caused by blockages in gas appliance intakes and exhaust ports during painting work. It has been reported that 54 such accidents occurred over the five years from 2017 to 2021. When painting, painters cover the air intake and exhaust vents with vinyl, then immediately cut them out with a utility knife and use masking tape to ensure proper ventilation. However, even if multiple people cut out the numerous intake and exhaust vents with a utility knife, someone may lose concentration and end up with a loose opening, resulting in a clogged vent and incomplete combustion. This product is made of cardboard treated with a flame retardant and consists of a right-side component, a left-side component, and an adjustment component for adjusting the horizontal width. Since the width of the intake and exhaust vents varies depending on the building, this can be adjusted. (The vertical size is long enough to accommodate this product.) Once assembly is complete, the intake and exhaust vents are attached and secured with paper masking tape. In particular, when painting the eaves, the walls and floors must all be covered with vinyl, so vinyl is applied to the walls, and then the vinyl is cut with a utility knife to fit the size of the product that has already been installed and fixed, and then connected to the product with paper masking tape. In the area where the masking tape will be applied, cellophane tape is attached to the cardboard, so by applying the paper masking tape to that area, the cellophane tape and paper masking tape can be peeled off cleanly when the product is removed, so it can be reused several times.(Since cellophane tape has excellent adhesive properties for cardboard, paper masking tape will not pull on the cellophane tape and the surface of the cardboard will not peel off.) It protrudes diagonally about 10 to 12 cm from the opening line of the existing air intake and exhaust vents, and the opening width is also wide, so there is no problem using gas appliances.

A combination right and left-handed masking tool for painters, drywallers and other construction workers is disclosed. The invention provides housing masking tape dispensers located on both the left and right sides of a masking tool both connected to a flat support member. The combination right and left-handed masking tool operates in the same fashion as existing right-handed masking tool using a tape dispenser on the right side but includes the added feature of supporting a left-handed tape dispenser. An adjustable handle is attached to the flat support member connected between the right and left-handed tape dispensers and may be repositioned towards the either end of the flat support member or at its center for better balance and ergonomics during use.

The utility model discloses a waterproof masking tape testing device which comprises a base, a liquid storage barrel and an ejector rod, the liquid storage barrel and the ejector rod are arranged at the top of the base, a sleeve is sleeved on the outer side wall of the ejector rod, a motor is mounted at the top of the ejector rod, the output end of the motor is connected with a lead screw, a supporting rod is arranged on the side wall of the sleeve, and an outer frame is mounted at the bottom of the supporting rod. Through the arrangement of the motor and the sleeve, after the soaking time is up, the motor is automatically started to drive the lead screw to rotate, the lead screw can drive the threaded sleeve to ascend along the ejector rod, through the arrangement of the connecting rod and the sliding groove, the glass plate can be conveniently and rapidly soaked, and the service life of the glass plate is prolonged. And after the threaded sleeve ascends to the highest position, the threaded sleeve rotates along the transverse section of the sliding groove, so that the glass plate is taken out of the liquid storage barrel and rotates to the position above the groove, workers do not need to take the glass plate out of the liquid storage barrel manually, and the working efficiency is higher.

An adhesive tape may include a first adhesive strip having an adhesive material applied to the first adhesive strip on a first side of the adhesive tape, a second adhesive strip having the adhesive material applied to the second adhesive strip on the first side of the adhesive tape, the second adhesive strip substantially parallel with the first adhesive strip and separated from the first adhesive strip by a distance, and a non-adhesive region between the first adhesive strip and the second adhesive strip wherein the non-adhesive region is substantially free of adhesive on the first side of the adhesive tape.

The utility model belongs to the technical field of masking tape equipment, and particularly relates to a masking tape laying and bonding auxiliary device which comprises a mounting frame, a supporting plate rotatably connected to the mounting frame, a sliding seat slidably connected to the supporting plate, a rotating shaft rotatably connected to the sliding seat, a sliding sleeve fixedly connected to the rotating shaft, and a handle slidably connected to the interior of the sliding sleeve. A mounting block is fixedly connected to the end part of the rotating shaft, an inserting rod is slidably connected to the mounting block, two inserting holes are formed in the sliding seat, the inserting rod is slidably connected with the inserting holes, an inserting groove is formed in the middle of the supporting plate, the end part of the inserting rod is inserted into the inserting groove, a fixing assembly is mounted on the handle, and a masking tape body is mounted on the mounting frame through an auxiliary bonding assembly. The angle and the length of the handle assembly can be flexibly adjusted according to using requirements of people with different heights, a worker can use the device more comfortably, the occupied space of the device can be reduced through the folding structure, and therefore transportation and storage are convenient.

To provide a method for manufacturing an electrode active material layer, with which an electrode active material layer with no cracking even when subjected to high-speed drying can be formed.SOLUTION: A method for manufacturing an electrode active material layer according to the present disclosure includes: a step (S11) of applying a masking tape (MT) on a surface (11S) of a current collector so as to surround the formation area of an electrode active material layer along the outer periphery of the formation area of the electrode active material layer; a step (S12) of applying, on the formation area of the electrode active material layer on the surface (11S) of the current collector and at least a partial area on the masking tape (MT), an electrode mixture containing an electrode active material and a dispersion medium to form a coating film (CF); a step (S13) of drying the coating film (CF) to form an electrode active material layer (EL); and a step (S14) of peeling, from the current collector (11), the masking tape (MT) and the periphery of the electrode active material layer (EL) existing on the masking tape (MT).SELECTED DRAWING: Figure 5

To provide an improved method for inspecting structures.SOLUTION: A surface of a part to be inspected of a structure is covered with a manually peelable coating, and a surrounding surface of the part to be inspected and the manually peelable coating are firmly bonded to each other via a primer, i.e., the part to be inspected is covered with the manually peelable coating and firmly bonded to the surroundings, and then the manually peelable coating of the part to be inspected is cut off and peeled off to inspect the part to be inspected. One example of a method for inspecting a liquid-storage steel structure includes the steps of: peeling off the coating of the part to be inspected of a liquid-storage steel structure, the entire surface of which is coated with an anti-rust coating, by blasting to form a strip-shaped coating-peeled part; attaching masking tape to an existing coating surface on the outer periphery of the coating-peeled part; applying a primer to the existing coating on the outer periphery; applying a paint that produces a solvent-resistant and manually peelable coating; picking up the coating and the masking tape with left and right ends of the coating and the masking tape as ears; and inspecting the steel plate of the part to be inspected by using the coating and the masking tape.SELECTED DRAWING: Figure 6

To provide a construction method for constructing a mark for drawing a line adapted for each competition so as to be hard to be peeled off on the floor surface of a stadium such as a gym.SOLUTION: This floor surface mark construction method executes, on the floor surface of a stadium such as a gym, a defatting process at a mark installation part of a floor surface material, executes a masking process for coating by a masking tape in the form of surrounding the mark installation part after completion of the defatting process of the mark installation part, mixes and applies an acrylic urethane resin primer on the mark installation part, checks an effect after passage of prescribed drying time, and quickly peels the masking tape after coloring within prescribed time after primer curing.SELECTED DRAWING: Figure 1

The invention belongs to the field of leather surface stone construction, and particularly relates to a leather surface natural stone joint filling and glue pouring construction process which comprises the following steps: plate gap cleaning: cleaning impurities in leather surface natural stone plate gaps by using a scraper knife or other tools, and repeatedly cleaning the gaps by using a high-pressure water gun, cleaning water stains in the gaps by using a dust collector; and finally, repeatedly blowing the gaps of the plates by using a blower. And finished product protection, specifically, masking paper is attached to the two sides of the plate gap, and the width of the masking paper is 2cm. According to the method, the plate gap is cleaned, a clean and dry environment is created for glue solution filling, then the glue solution is closely combined with the stone gap in combination with proportional blending, multiple-time gap scraping and sufficient curing of the glue solution, and the stone gap is protected. The problems of insufficient gap filling, bubbles or gaps and the like are effectively avoided, the firmness and the sealing performance of gap filling are remarkably improved, and the overall structural stability of the natural stone with the leather surface is enhanced.

A hand-tearable masking tape having a paper mask layer having a top and bottom surface, the bottom surface having a bottom adhesive layer disposed thereon. The paper mask layer and the bottom adhesive layer have a predefined width and a predefined length and includes a plurality of hole members protruding into the paper mask layer up to 300 perforations per inch (TPI), the paper mask layer further including a plurality of solid portions designed to resist tear so the paper mask layer tears along at least one or more of a width and length of a line of hole members. An adhesive compound forms the bottom adhesive layer. The plurality of hole members protrudes through the paper mask layer, the paper mask layer having a cut / tie range of 0.05 mm to 12 mm, the plurality of hole members extending through the paper mask layer, and up to the adhesive layer.

The invention belongs to the technical field of PCB production, and particularly relates to a circuit board positioning method. The circuit board positioning method is applied to the circuit board processing equipment, the circuit board processing equipment comprises a first platform, a positioning piece is arranged on the first platform, and the circuit board positioning method comprises the steps that a first rectangular coordinate system is established on a to-be-processed board, and processing position information of a target hole is acquired; calculating the relative position of the reference point on the to-be-processed plate and the original point of the first rectangular coordinate; processing the to-be-processed plate based on the processing position information to obtain a target hole; and based on the relative position of the reference point on the to-be-machined plate and the original point of the first rectangular coordinate, the relative position of the positioning piece on the first platform and the target hole is determined, the positioning piece is inserted into the target hole, and the to-be-machined plate is positioned. Positioning can be completed through cooperation of the positioning piece and the target hole, no extra pin needs to be prepared and installed in advance, no masking tape needs to be pasted, the process preparation time can be shortened, and the production efficiency is improved.

To provide a masking sheet and a masking tape that enable easy gripping of a prime coating adhesive tape while maintaining adhesion to a coated surface.SOLUTION: A masking sheet 100 comprises: a sheet body 101 for covering a coated surface N; a finish coating adhesive tape 102 bonded along a sheet edge part 101a, which is an edge part of the sheet body 101, in the state expanding from the sheet edge part 101a; and a prime coating adhesive tape 105 which is bonded along an upper tape edge part 102a, which is an edge part of the finish coating adhesive tape 102, in the state expanding from the upper tape edge part 102a. In the prime coating adhesive tape 105, an upper tape side edge part 105b, which is an edge part on a side opposite to a lower tape expansion part 109, is thicker than the lower tape expansion part 109.SELECTED DRAWING: Figure 1

A method of use protects a door hinge from splattered paint while allowing movement of the door, because the barrel portion is covered by the non-adhesive central portion of a masking tape. Use of a specialized roll of painter's masking tape includes the steps of having a longitudinal narrow region in the center without adhesive, in between two outer left and right regions which include adhesive. This non-adhesive center region is sized to match the circumference of the pin barrel exposed on the front of the hinge when opened flat. The tape is cut at predetermined lengths to form disposable masks for masking door hinges. The same tape is used for masking at least a portion of both the front butt plates as well as all of the back pin barrel side of the hinge. The front mask does not impede movement of the attached pivotably openable door.

The utility model provides a masking tape paving device, which relates to the technical field of masking tape paving and comprises a guide disc, a plurality of adhesive tapes, a plurality of adhesive tapes, a plurality of adhesive tapes and a plurality of adhesive tapes, the rotating component is rotationally arranged on one side of the guide disc, the outer periphery of the rotating component is matched with the inner periphery of the rolled masking tape, and the rotating component is used for being connected with the rolled masking tape; the problems that time and labor are wasted and the paving effect is limited due to the fact that masking tape is manually paved before seam beautifying in the prior art are solved.

This utility model provides a demarcation and isolation device for painting edge protection railings at construction sites, belonging to the field of building construction technology. The device includes two semi-cylindrical sleeves with their arc-shaped openings facing each other. The two semi-cylindrical sleeves can be connected to form a cylindrical sleeve. The two semi-cylindrical sleeves are fitted onto the railing, and a semi-circular sealing ring is fitted onto the painted portion of the railing. A connecting column drives the painting component to paint the railing. After painting, the semi-cylindrical sleeves are removed. This eliminates the need for large amounts of masking tape, and the semi-cylindrical sleeves are reusable, reducing construction costs and improving work efficiency.