Easy-to-tear tensile-resistant paper tape and preparation method thereof

Abstract

The present invention relates to the field of adhesive tapes, and in particular to an easy-to-tear tensile-resistant Japanese paper tape and a preparation method thereof. The preparation method comprises: dissolving chitosan in an acetic acid aqueous solution, heating to 80-85°C, sequentially adding methacrylate, vinyl triisopropoxy silicon, and potassium persulfate, and then heating to 85-92°C to react and obtain the chitosan methacrylate; the raw materials are respectively: 10-15 parts of chitosan, 100-110 parts of methacrylate, 1-3 parts of vinyl triisopropoxy silicon, and 0.4-0.6 parts of potassium persulfate in parts by weight; the Japanese paper base paper is immersed in an impregnation liquid to coat the surface with an anti-tensile layer to obtain a base paper, and the impregnation liquid is chitosan methacrylate dispersed in a phosphate buffer solution; glue is applied to the base paper to obtain the Japanese paper tape and then rolled up. The invention immerses the Japanese paper base paper in an impregnation liquid of chitosan methacrylate so that the surface of the Japanese paper base paper is coated with a tensile layer, thereby improving the tensile performance of the Japanese paper base paper and retaining its easy-tear performance.

Description

Technical Field

[0001] The invention relates to the field of adhesive tapes, and in particular to an easy-to-tear, tensile-resistant paper adhesive tape and a preparation method thereof. Background Art

[0002] Washi tape base paper is used as the basic material for making washi tape. One side of the washi tape base paper is coated with a silicone anti-adhesive layer and the other side is coated with acrylic glue to make washi tape.

[0003] The base paper of washi tape is made of plant fiber. Although it is easy to tear, it has poor tensile resistance. The pressure-sensitive adhesive of washi tape has too strong tensile properties, making it difficult to tear. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an easy-to-tear tensile-resistant Japanese paper tape, which has strong tensile properties and is easy to tear off by impregnating the base paper;

[0006] Correspondingly, the present invention also provides an easy-to-tear tensile-resistant paper tape prepared by the above preparation method.

[0007] (II) Technical solution

[0008] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0009] In a first aspect, the present invention provides a method for preparing an easy-to-tear tensile-resistant paper tape, comprising the following steps:

[0010] S1 Preparation of chitosan methacrylate: dissolve chitosan in acetic acid aqueous solution, heat to 80-85°C, add methacrylate, vinyl triisopropoxy silicon, and potassium persulfate in sequence, and then heat to 85-92°C to react to obtain the chitosan methacrylate; the raw materials are respectively as follows by weight: 10-15 parts of chitosan, 100-110 parts of methacrylate, 1-3 parts of vinyl triisopropoxy silicon, and 0.4-0.6 parts of potassium persulfate;

[0011] S2 base paper treatment: The Japanese paper base paper is immersed in an impregnation liquid to coat the surface of the base paper with a tensile layer to obtain a base paper, wherein the impregnation liquid is chitosan methacrylate dispersed in a phosphate buffer solution;

[0012] Preparation of S3 glue;

[0013] S4 applies the prepared glue on the base paper to obtain the washi tape and rolls it up.

[0014] Optionally, the present invention further prepares the glue so as to impart the paper tape with easy-tear properties while having good viscosity.

[0015] The preparation of the glue comprises the following steps:

[0016] Dissolve ethyl acrylate, isooctyl methacrylate, methacrylic acid, and hydroxyethyl methacrylate in butyl acetate and stir evenly to obtain a mixed solution;

[0017] The mixed solution was heated to 80-85°C, methyl ethyl ketone peroxide and methyl acrylate were added, the mixture was reacted for 3-5 hours, polyether modified silicon was added, and the mixture was stirred and mixed for 10-15 minutes. The mixture was cooled to 35-40°C, and the viscosity was adjusted to 12000-15000 MPa to obtain glue.

[0018] In parts by weight, the raw materials are: 12-25 parts of ethyl acrylate, 22-25 parts of isooctyl methacrylate, 7-9 parts of methacrylic acid, 0.1-0.2 parts of polyether modified silicone, 0.25-0.35 parts of hydroxyethyl methacrylate, 40-55 parts of butyl acetate, 0.05-0.1 parts of methyl ethyl ketone peroxide, and 3-8 parts of methyl acrylate.

[0019] Among them, the gluing process in S4 is carried out by a coating device, which includes a glue storage chamber suspended and fixed above the tape base paper; a bowl-shaped polarizer with a horizontal bottom is arranged outside the glue storage chamber; along the forward direction of the tape base paper, a plurality of power push rods are horizontally connected between the front and rear inner walls of the polarizer and the glue storage chamber; the power push rods support the polarizer to be suspended in the air and can drive the polarizer to translate back and forth repeatedly at high speed; a glue outlet seam is provided at the center of the bottom of the polarizer along the width direction of the tape base paper; detachable glue coating sheets are respectively attached to the bottom of the polarizer on the front and rear sides of the glue outlet seam; the glue storage chamber and the polarizer enclose a glue extrusion chamber; a plurality of through holes are provided on the side wall of the glue storage chamber to connect the glue extrusion chamber and the glue storage chamber.

[0020] Among them, wind shields are respectively provided on the front and rear sides of the polarizer; the upper end of the wind shield is hinged on a fixed beam; the lower end extends to the top of the tape base paper and close to the tape base paper; the wind shield and the front and rear walls of the polarizer respectively enclose an air suction cavity; along the width direction of the tape base paper, the left and right sides of the air suction cavity are respectively abutted against a side wind shield to shield the left and right sides of the air suction cavity; the upper part of the air suction cavity is also connected with an elastic expansion sheet between the upper end of the polarizer and the wind shield to shield the upper part of the air suction cavity; the lower outer wall of the wind shield is connected to a telescopic driving mechanism; the other end of the telescopic driving mechanism is fixed to a vertical fixed plate; the vertical fixed plate is fixedly connected to the fixed beam; the telescopic driving mechanism controls the size of the air suction port formed by the lower part of the wind shield and the lower part of the polarizer; a suction pipe connected to the air suction cavity is fixed on the elastic expansion sheet.

[0021] The glue storage chamber is wide at the top and narrow at the bottom, and the front and rear side walls of the polarizer are arranged vertically, so that the enclosed glue extrusion chamber is narrow at the top and wide at the bottom. The bottoms of the front and rear side walls of the polarizer are rounded; the lower end of the wind deflector is bent toward the polarizer; a glue supply hose is inserted from the top of the glue storage chamber; the lower end of the wind deflector is deflected toward the polarizer so that the air suction chamber is larger at the top and smaller at the bottom.

[0022] Among them, the power push rod includes a hollow cylindrical barrel, a piston slidably mounted in the barrel, and a rod body with one end connected to the piston and the other end extending out of the barrel; the piston and the barrel enclose a liquid cavity; an electrode pair is arranged in the liquid cavity; the liquid cavity is filled with water; an external circuit applies an electric field to the electrode pair to generate a liquid-electric effect to impact the piston to push the rod out.

[0023] Among them, the telescopic driving mechanism includes a first rod and a second rod arranged opposite to each other, and a linear sleeve slidably sleeved outside the first rod and the second rod at the same time; a partition plate is fixed in the middle of the linear sleeve; an arc-shaped piezoelectric deformation plate is fixed at the left and right ends of the partition plate respectively; the upper and lower ends of the piezoelectric deformation plate are fixedly connected to the partition plate respectively; the piezoelectric deformation plate includes a middle elastic insulating sheet and a piezoelectric ceramic sheet attached to both sides of the middle elastic insulating sheet; under the action of an external electric field, one of the two piezoelectric ceramic sheets is extended and the other is shortened, so that the middle part of the piezoelectric deformation plate bulges outward, thereby pushing the first rod and the second rod to extend.

[0024] The coating method of the coating device comprises the following steps:

[0025] ① The tape base paper moves forward from under the polarizer, with a small gap between it and the polarizer; at the same time, an electric field is applied alternately to the electrode pairs in the power push rods on the left and right sides to generate a hydroelectric effect in the water in the liquid chamber, generating an impact force to push the piston and the rod body outward; thereby, the polarizer is repeatedly moved back and forth quickly and in a small amplitude along the forward direction of the tape base paper;

[0026] ② When the rear power push rod is pushed, the polarizer moves forward and squeezes the glue extrusion cavity at the front. The glue in the glue extrusion cavity on this side is squeezed out from the glue outlet slit onto the adhesive tape base paper. At the same time, the polarizer moves forward at the same time, so the glue coating sheet at its lower end smears the glue forward; at the same time, the front air suction port is reduced and the wind speed is increased during the forward movement of the polarizer, and the rear air suction port is increased and the wind speed is reduced, so that the adhesive tape base paper in front of the glue outlet slit is more tightly attached to the glue coating sheet, and the adhesive tape base paper at the rear is loosely attached to the glue coating sheet, thereby matching the moving direction of the polarizer at this time, absorbing the glue to flow in the moving direction of the polarizer, and facilitating the directional expansion of the glue in the glue coating action;

[0027] ③ When the front power push rod pushes, the polarizer moves forward and backward, squeezing the glue extrusion cavity at the rear, and part of the glue in the glue extrusion cavity on this side is squeezed out from the glue outlet slit onto the tape base paper. At the same time, the polarizer moves backward at the same time, so the glue coating sheet at its lower end smears the glue to the rear; at the same time, the air suction port at the rear is reduced in size and the wind speed is increased in the process of the polarizer moving backward, and the air suction port at the front is increased and the wind speed is reduced, so that the tape base paper behind the glue outlet slit is more tightly attached to the glue coating sheet, and the tape base paper in the front is loosely attached to the glue coating sheet, thereby matching the moving direction of the polarizer at this time, absorbing the glue to flow in the moving direction of the polarizer, and facilitating the directional expansion of the glue in the glue coating action;

[0028] ④ If it is found during the gluing process that the flow expansibility of the glue on the tape base paper deviates greatly from the set requirements, the circuit can be used to control the elongation or shortening of the piezoelectric ceramic sheet to lengthen or shorten the protruding distance of the middle part of the piezoelectric deformation plate, thereby synchronously adjusting the size of the suction port each time the size of the suction port changes.

[0029] In a second aspect, the present invention also provides an easy-to-tear, tensile-resistant paper tape prepared by the preparation method in any of the above schemes.

[0030] (III) Beneficial effects

[0031] The beneficial effects of the present invention are:

[0032] 1. The present invention immerses the Japanese paper base paper in an impregnation solution of chitosan methacrylate to coat the surface of the Japanese paper base paper with a tensile layer, thereby improving the tensile properties of the Japanese paper base paper and retaining its easy-tear property.

[0033] 2. The glue prepared by the present invention has a good viscosity, reduces tensile properties and improves its easy-tear function.

[0034] 3. Compared with the existing roller coating method, the coating device of the present invention has the advantage of uniform glue coating brought by surface contact rubbing, and has the advantages of glue feeding accuracy, coating and covering uniformity compared with the existing scraping method. The present invention combines the polarizer with the glue storage chamber, and uses the front and rear polarization of the polarizer to squeeze the front and rear glue squeezing chambers, so as to achieve accurate timing and quantitative extrusion of a certain amount of glue from the glue outlet slit, and then the polarizer simultaneously moves back and forth during the polarization process, so that the glue-coating sheet can achieve a cyclic glue coating action, so that the glue is evenly coated on the tape base paper, and the squeezed flow direction of the glue is the same and synchronous with the polarization direction of the polarizer, and the glue outlet slit moves with the movement of the polarizer, so that the dynamic glue spreading and dynamic smearing effects can be achieved. Further ensure the uniformity of glue spreading and coating; the polarizer uses a power push rod for controllable high-speed repeated polarization. The power push rod combines the telescopic rod structure with the liquid-electric effect, which not only makes the movement of the polarizer directional and guiding, but also makes full use of the high-speed response and controllable impact force of the liquid-electric effect. By using a high-voltage strong electric field to pass through the liquid, the huge energy is instantly released in the discharge channel, and the liquid in the channel quickly vaporizes, expands and causes an explosion, thereby generating a fast-reacting impact force. The thrust power output instantly, as well as the advantages of controllability and high-speed response, are used to achieve controllable, precise, powerful and fast repeated polarization of the polarizer. Therefore, the reaction speed and thrust can simultaneously meet the polarization speed and strength of the polarizer in the highly viscous glue.

[0035] 4. The present invention also arranges a wind shield outside the polarizer to enclose a suction cavity that is larger at the top and smaller at the bottom. Since the polarizer is an important aspect of enclosing the suction cavity, the cross-sectional size of the suction cavity is automatically and synchronously adjusted during the polarization process of the polarizer. By utilizing the Bernoulli effect, since the cross-sectional area of ​​the suction cavity in front of the offset direction of the polarizer is reduced, and the cross-sectional area of ​​the suction cavity in the rear is increased, the flow velocity of the suction cavity in the front and its suction port is increased, and the suction force is increased, while the flow velocity of the suction cavity in the rear and its suction port is reduced, and the suction force is reduced, so that the adhesive tape base paper is subjected to negative pressure in front of the glue outlet seam and the force of attaching it to the front glue-coated sheet is increased, and the negative pressure behind the glue outlet seam and the force of attaching it to the rear glue-coated sheet is reduced; In this way, the adhesion force between the tape base paper and the glue-coated sheet can be used to form an obstacle in the front direction of the polarizer's movement direction, while the obstacle is relaxed in the rear, thereby achieving the effect of blocking the accumulation of glue in the front, thereby prolonging the contact time between the glue squeezed out of the glue outlet slit and the glue-coated sheet at the rear, improving the coating effect and efficiency, and being able to more conveniently control the thickness of the glue; and the initial position of the wind deflector can be simply and conveniently adjusted, and even in the dynamic gluing process, the structural design of the telescopic drive mechanism and the inverse piezoelectric effect can be used to achieve fast, precise and high-frequency control of the size of the air suction port, which can flexibly adapt to and cope with various problems arising in the production process without the need to frequently stop equipment for adjustment and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a process flow chart of the present invention;

[0037] Figure 2 It is a schematic structural diagram of the coating device of the present invention;

[0038] Figure 3 It is a schematic diagram of the structure of the power push rod;

[0039] Figure 4 Schematic diagram of the structure of the piezoelectric deformation plate;

[0040] Figure 5 It is a structural schematic diagram of the automatic winding mechanism in step ① of the winding method;

[0041] Figure 6 It is a schematic diagram of vertically pushing the telescopic rod to lift the empty winding roller to the top of the vertical lifting track;

[0042] Figure 7 A schematic diagram of vertically pushing the telescopic rod to lift the empty winding roller to the top of the vertical lifting track and complete the winding;

[0043] Figure 8 This is a schematic diagram of the winding roller being driven down to the corresponding entrance position of the inclined track when the winding is about to be completed by pushing the telescopic rod vertically;

[0044] Fig. 9 It is a schematic diagram of the situation in which the oblique push telescopic rod pushes the winding roller to enter and move along the oblique ascending track to the intersection with the oblique descending track;

[0045] Fig.10 A schematic diagram showing the first winding roller rolling to the third rotation limit arc portion to complete winding, and the second winding roller being lifted into place;

[0046] Fig.11 A schematic diagram showing the process of cutting off the tape on the first reel and starting the reeling of the second reel;

[0047] Fig.12 It is a schematic diagram of the extrusion guide plate in normal state;

[0048] Fig.13 It is a schematic diagram of the bending of the extrusion guide plate;

[0049] Fig.14 This is a schematic diagram of the second winding roller starting to wind.

[0050] 1. Adhesive tape base paper; 2. Adhesive liquid storage chamber; 21. Adhesive filling hose; 3. Polarizer; 31. Power push rod; 311. Cylinder; 312. Piston; 313. Rod body; 314. Liquid chamber; 315. Electrode pair; 32. Adhesive outlet seam; 33. Adhesive coating sheet; 34. Adhesive extrusion chamber; 4. Wind deflector; 41. Air suction chamber; 42. Side wind deflector; 43. Elastic expansion sheet; 44. Telescopic driving mechanism; 441. First rod; 442. Second rod; 443. Linear sleeve; 444. Partition plate; 445. Piezoelectric deformation plate; 447. Middle elastic insulating sheet; 448. Piezoelectric ceramic sheet; 45. Vertical fixing plate; 46. Air suction pipe; 47. Air suction port; 5. Fixed beam. DETAILED DESCRIPTION

[0051] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods.

[0052] See also Figure 1 , Example 1

[0053] This embodiment provides a preparation of glue, and the steps are as follows:

[0054] Dissolve ethyl acrylate, isooctyl methacrylate, methacrylic acid, and hydroxyethyl methacrylate in butyl acetate and stir evenly to obtain a mixed solution;

[0055] The mixed solution was heated to 83°C, methyl ethyl ketone peroxide and methyl acrylate were added, reacted for 4 hours, polyether modified silicon was added, stirred and mixed for 13 minutes, cooled to 38°C, and the viscosity was adjusted to 13000 MPa to obtain glue;

[0056] In parts by weight, the raw materials are: 18 parts of ethyl acrylate, 23 parts of isooctyl methacrylate, 8 parts of methacrylic acid, 0.15 parts of polyether modified silicone, 0.3 parts of hydroxyethyl methacrylate, 48 parts of butyl acetate, 0.08 parts of methyl ethyl ketone peroxide, and 5 parts of methyl acrylate. Example 2

[0057] This embodiment provides a preparation of glue, and the steps are as follows:

[0058] Dissolve ethyl acrylate, isooctyl methacrylate, methacrylic acid, and hydroxyethyl methacrylate in butyl acetate and stir evenly to obtain a mixed solution;

[0059] The mixed solution was heated to 85° C., methyl ethyl ketone peroxide and methyl acrylate were added and reacted for 3 hours, polyether modified silicon was added and stirred for 10 minutes, the temperature was lowered to 35° C., and the viscosity was adjusted to 15000 MPa to obtain glue.

[0060] In parts by weight, the raw materials are: 25 parts of ethyl acrylate, 22 parts of isooctyl methacrylate, 7 parts of methacrylic acid, 0.2 parts of polyether modified silicone, 0.25 parts of hydroxyethyl methacrylate, 55 parts of butyl acetate, 0.05 parts of methyl ethyl ketone peroxide, and 8 parts of methyl acrylate. Example 3

[0061] This embodiment provides a preparation of glue, and the steps are as follows:

[0062] Dissolve ethyl acrylate, isooctyl methacrylate, methacrylic acid, and hydroxyethyl methacrylate in butyl acetate and stir evenly to obtain a mixed solution;

[0063] The mixed solution was heated to 80° C., methyl ethyl ketone peroxide and methyl acrylate were added, reacted for 5 hours, polyether modified silicon was added, stirred and mixed for 15 minutes, cooled to 40° C., and the viscosity was adjusted to 12000 MPa to obtain glue.

[0064] In parts by weight, the raw materials are: 12 parts of ethyl acrylate, 25 parts of isooctyl methacrylate, 9 parts of methacrylic acid, 0.1 parts of polyether modified silicone, 0.35 parts of hydroxyethyl methacrylate, 40 parts of butyl acetate, 0.1 parts of methyl ethyl ketone peroxide, and 3 parts of methyl acrylate.

[0065] The glue prepared in Examples 1-3 of the present invention is used as a pressure-sensitive adhesive, and its tensile properties are relatively low, which can give the tape good tearability. Example 4

[0066] This embodiment provides a method for preparing an easy-to-tear tensile-resistant paper tape, and the steps are as follows:

[0067] S1 base paper treatment: The Japanese paper base paper is immersed in an impregnation liquid to coat the surface of the base paper with a tensile layer to obtain a base paper, wherein the impregnation liquid is chitosan methacrylate dispersed in a phosphate buffer solution, and the concentration of the chitosan methacrylate is 50%;

[0068] The chitosan is dissolved in an acetic acid aqueous solution, heated to 80°C, methacrylate, vinyl triisopropoxy silicon, and potassium persulfate are added in sequence, and then heated to 89°C to react to obtain the chitosan methacrylate; the raw materials are as follows by weight: 12 parts of chitosan, 105 parts of methacrylate, 3 parts of vinyl triisopropoxy silicon, and 0.45 parts of potassium persulfate;

[0069] S2: applying the glue prepared in Examples 1-3 onto base paper to prepare a Japanese paper tape and then rolling it up. Example 5

[0070] This embodiment provides a method for preparing an easy-to-tear tensile-resistant paper tape, and the steps are as follows:

[0071] S1 base paper treatment: The Japanese paper base paper is immersed in an impregnation liquid to coat the surface of the base paper with a tensile layer, and the impregnation liquid is chitosan methacrylate dispersed in a phosphate buffer solution, and the concentration of chitosan methacrylate is 60%;

[0072] Dissolve chitosan in acetic acid aqueous solution, heat to 82°C, add methacrylate, vinyl triisopropoxy silicon, and potassium persulfate in sequence, and then heat to 92°C to react to obtain the chitosan methacrylate; the raw materials are respectively: 15 parts of chitosan, 100 parts of methacrylate, 2 parts of vinyl triisopropoxy silicon, and 0.6 parts of potassium persulfate in parts by weight;

[0073] S2: applying the glue prepared in Examples 1-3 onto base paper to prepare a Japanese paper tape and then rolling it up. Example 6

[0074] This embodiment provides a method for preparing an easy-to-tear tensile-resistant paper tape, and the steps are as follows:

[0075] S1 base paper treatment: The Japanese paper base paper is immersed in an impregnation liquid to coat the surface with a tensile layer to obtain a base paper. The impregnation liquid is chitosan methacrylate dispersed in a phosphate buffer solution. The concentration of chitosan methacrylate is 45%;

[0076] The chitosan is dissolved in an acetic acid aqueous solution, heated to 85°C, methacrylate, vinyl triisopropoxy silicon, and potassium persulfate are added in sequence, and then heated to 90°C to react to obtain the chitosan methacrylate; the raw materials are as follows by weight: 10 parts of chitosan, 110 parts of methacrylate, 1 part of vinyl triisopropoxy silicon, and 0.4 parts of potassium persulfate;

[0077] S2: applying the glue prepared in Examples 1-3 onto base paper to prepare a Japanese paper tape and then rolling it up.

[0078] The present invention conducted a tensile test on the Japanese paper tape made with the glue of Example 1 in Example 4, and found that it did not deform under pressures of 20N, 50N, and 100N. However, the tape that was not impregnated in step S1 deformed under a pressure of 50N and broke under a tensile force of 100N.

[0079] The present invention conducted a tearing test on the Japanese paper tape prepared with the glue of Example 1 in Example 4, and found that it was slightly more difficult to tear than A4 paper.

[0080] See also Figures 2 to 4In the above embodiment, the gluing process of S2 is carried out by a coating device, which includes a glue storage chamber 2 suspended and fixed above the tape base paper 1; a bowl-shaped polarizer 3 with a horizontal bottom is arranged outside the glue storage chamber 2; along the forward direction of the tape base paper 1, a plurality of power push rods 31 are horizontally connected between the front and rear inner walls of the polarizer 3 and the glue storage chamber 2; the power push rods 31 support the polarizer 3 to be suspended in the air and can drive the polarizer 3 to repeatedly translate back and forth at high speed; a glue outlet slit 32 is provided at the center of the bottom of the polarizer 3 along the width direction of the tape base paper 1; detachable glue coating sheets 33 are respectively attached to the bottom of the polarizer 3 on both sides of the front and rear of the glue outlet slit 32; the glue storage chamber 2 and the polarizer 3 enclose a glue extrusion cavity 34; a plurality of through holes are provided on the side wall of the glue storage chamber 2 to connect the glue extrusion cavity 34 and the glue storage chamber 2.

[0081] Furthermore, wind deflectors 4 are provided on the front and rear sides of the polarizer 3 respectively; the upper end of the wind deflector 4 is hinged on a fixed beam 5; the lower end extends to the top of the tape base paper 1 and close to the tape base paper 1; the wind deflector 4 and the front and rear walls of the polarizer 3 respectively enclose a suction chamber 41; along the width direction of the tape base paper 1, the left and right sides of the suction chamber 41 are respectively abutted against a side wind deflector 42 to shield the left and right sides of the suction chamber 41; an elastic expansion sheet 43 is connected to the upper part of the suction chamber 41 between the upper end of the polarizer 3 and the wind deflector 4 to shield the upper part of the suction chamber 41; a telescopic driving mechanism 44 is connected to the outer wall of the lower part of the wind deflector 4; the other end of the telescopic driving mechanism 44 is fixed on a vertical fixed plate 45; the vertical fixed plate 45 is fixedly connected to the fixed beam 5; the telescopic driving mechanism 44 controls the size of the suction port 47 formed by the lower part of the wind deflector 4 and the lower part of the polarizer 3; a suction pipe 46 connected to the suction chamber 41 is fixed on the elastic expansion sheet 43.

[0082] Furthermore, the glue storage chamber 2 is wide at the top and narrow at the bottom, and the front and rear side walls of the polarizer 3 are arranged vertically, so that the enclosed glue extrusion chamber 34 is narrow at the top and wide at the bottom. The bottoms of the front and rear side walls of the polarizer 3 are rounded; the lower end of the wind deflector 4 is bent toward the side of the polarizer 3; a glue supply hose 21 is inserted from the top of the glue storage chamber 2; the lower end of the wind deflector 4 is deflected toward the side of the polarizer 3 so that the air suction chamber 41 is larger at the top and smaller at the bottom.

[0083] Furthermore, the power push rod 31 includes a hollow cylindrical barrel 311, a piston 312 slidably sleeved in the barrel 311, and a rod body 313 with one end connected to the piston 312 and the other end extending out of the barrel 311; the piston 312 and the barrel 311 enclose a liquid cavity 314; an electrode pair 315 is arranged in the liquid cavity 314; the liquid cavity 314 is filled with water; an external circuit applies an electric field to the electrode pair 315 to generate a liquid-electric effect to impact the piston 312 to push the rod body 313 outward.

[0084] Furthermore, the telescopic driving mechanism 44 includes a first rod 441 and a second rod 442 which are arranged opposite to each other, and a linear sleeve 443 which is slidably sleeved on the outside of the first rod 441 and the second rod 442 at the same time; a partition plate 444 is fixed in the middle part of the linear sleeve 443; an arc-shaped piezoelectric deformation plate 445 is fixed at the left and right ends of the partition plate 444; the upper and lower ends of the piezoelectric deformation plate 445 are fixedly connected to the partition plate 444 respectively; the piezoelectric deformation plate 445 includes a middle elastic insulating sheet 447 and a piezoelectric ceramic sheet 448 attached to both sides of the middle elastic insulating sheet 447; under the action of an external electric field, one of the two piezoelectric ceramic sheets 448 is extended and the other is shortened, so that the middle part of the piezoelectric deformation plate 445 bulges outward, thereby pushing the first rod 441 and the second rod 442 to extend.

[0085] The coating method of the coating device comprises the following steps:

[0086] ① The adhesive tape base paper 1 passes forward from under the polarizer 3, with a small gap between it and the polarizer 3; at the same time, an electric field is applied alternately to the electrode pairs 315 in the power push rods 31 on the left and right sides to generate a hydroelectric effect in the water in the liquid chamber 314, generating an impact force to push the piston 312 and the rod body 313 outward; thereby, the polarizer 3 is repeatedly moved back and forth quickly and in a small amplitude along the forward direction of the adhesive tape base paper 1;

[0087] ② When the rear power push rod 31 pushes, the polarizer 3 moves forward, squeezing the front glue extrusion cavity 34, and the glue liquid in the side glue extrusion cavity 34 is squeezed out from the glue outlet slit 32 onto the adhesive tape base paper 1. At the same time, the polarizer 3 moves forward at the same time, so the glue coating sheet 33 at its lower end smears the glue liquid forward; at the same time, the front air suction port 47 is reduced in size and the wind speed is increased during the forward movement of the polarizer 3, and the rear air suction port 47 is increased and the wind speed is reduced, so that the adhesive tape base paper 1 in front of the glue outlet slit 32 is more tightly attached to the glue coating sheet 33, and the adhesive tape base paper 1 at the rear is loosely attached to the glue coating sheet 33, thereby matching the moving direction of the polarizer 3 at this time, and adsorbing the glue liquid to flow in the moving direction of the polarizer 3, which is convenient for the directional expansion of the glue liquid in the glue coating action;

[0088] ③ When the front power push rod 31 pushes, the polarizer 3 moves forward and backward, squeezing the glue extrusion cavity 34 at the rear, and the glue liquid in the glue extrusion cavity 34 is squeezed out from the glue outlet slit 32 onto the adhesive tape base paper 1. At the same time, the polarizer 3 moves backward at the same time, so the glue coating sheet 33 at its lower end smears the glue liquid backward; at the same time, the air suction port 47 at the rear is reduced in size and the wind speed is increased during the backward movement of the polarizer 3, and the air suction port 47 at the front is increased and the wind speed is reduced, so that the adhesive tape base paper 1 behind the glue outlet slit 32 is more tightly attached to the glue coating sheet 33, and the adhesive tape base paper 1 at the front is loosely attached to the glue coating sheet 33, thereby matching the moving direction of the polarizer 3 at this time, absorbing the glue liquid to flow in the moving direction of the polarizer 3, and facilitating the directional expansion of the glue liquid in the glue coating action;

[0089] ④ If it is found during the gluing process that the flow expansibility of the glue on the tape base paper 1 deviates greatly from the set requirements, the piezoelectric ceramic piece 448 can be controlled by the circuit to extend or shorten so that the protruding distance of the middle part of the piezoelectric deformation plate 445 becomes longer or shorter, thereby synchronously supplementing and adjusting the size change of the suction port 47 each time the size of the suction port 47 changes.

[0090] In addition, see Figure 5-14 In the above embodiment, in S2, the tape is wound up by an automatic winding mechanism; the automatic winding mechanism includes an empty roller track 7, a vertical lifting track 8 and a full roller track 9 which are arranged in parallel and at intervals for guiding the core shaft 61 at both ends of the winding roller 6; the two ends of the core shaft 61 extend outward from the track surface respectively; the empty roller track 7 is inclined downward, and a plurality of first stop blocks 71 for movable stopping the core shaft 61 are arranged on the support surface along the length direction of the empty roller track 7; the lower end of the vertical lifting track 8 is connected to one side of the lower end of the empty roller track 7; the vertical lifting track 8 A vertical push telescopic rod 81 is arranged outside the lower track surface; a first arc-shaped support plate 82 is arranged at the upper end of the vertical push telescopic rod 81; the first arc-shaped support plate 82 lifts the core shaft 61 from the track surface of the vertical lifting track 8 to lift the empty winding roller 6 to the top of the vertical lifting track 8; a first rotation limiting arc portion 83 is arranged on the circumference of the core shaft 61 at the top of the vertical lifting track 8; a driving gear 84 is arranged outside the track surface of the top of the vertical lifting track 8; a gear ring is arranged on the outer circumferential surface of the core shaft 61 corresponding to the driving gear 84; the winding roller 6 is pushed vertically by the vertical push telescopic rod 81 When it reaches the top of the vertical lifting track 8, the gear ring just meshes with the driving gear 84; one end of the full roller track 9 is connected and communicated with the other side of the vertical lifting track 8, and the connection point is the position below the top of the vertical lifting track 8; the full roller track 9 is first tilted upward from one end of the connection with the vertical lifting track 8 to the other end to form an inclined rising track 91, and then tilted downward to form an inclined descending track 92; the inclined rising track 91 and the inclined descending track 92 are smoothly connected and communicated; corresponding to the direction of the inclined rising track 91, an oblique push telescopic rod 93 is provided outside the track surface on one side of the vertical lifting track 8; A second arc-shaped support plate 94 is arranged at the outer end of the oblique push telescopic rod 93; the second arc-shaped support plate 94 pushes the core shaft 61 from the track surface of the vertical lifting track 8 and the oblique lifting track 91 so that the full roll after winding is completed enters the oblique lifting track 91; the front and rear positions of the first arc-shaped support plate 82 and the second arc-shaped support plate 94 are staggered; the position of the third rotation limiting arc surface 95 is lower than the top position of the vertical lifting track 8 so that the empty winding roller 6 located at the top of the vertical lifting track 8 can support the tape between the full winding roller 6 located on the third rotation limiting arc surface 95 and the tape feeding direction.

[0091] Furthermore, an extrusion guide cutting mechanism is also provided above the vertical lifting track 8; the extrusion guide cutting mechanism includes a cutting telescopic rod 101, a guide plate 103 vertically fixed to the lower end of the cutting telescopic rod 101, and a cutting blade 104; the extrusion guide plate 103 includes an arc plate 105 set to correspond to the arc of the diameter of the rolled tape roll and a deformable extrusion plate 106 connected to the extrusion guide plate 103 near the end of the inclined descending track 92; the cutting blade 104 is connected to the deformable extrusion plate 10 6 is close to one end of the descending track 92; the deformable extrusion plate 106 includes an elastic insulating plate 107 horizontally arranged and located in the middle, and piezoelectric ceramic plates 108 attached to the upper and lower surfaces of the elastic insulating plate 107; under the control of the electric field, the upper piezoelectric ceramic plate 108 is extended and the lower piezoelectric ceramic plate 108 is shortened, which can drive the piezoelectric ceramic plate 108 to bend into an arc surface attached to the outer circumference of the tape roll; when the piezoelectric ceramic plate 108 is bent and attached to the tape roll, it drives the cutting blade 104 to deflect downward and cut the tape.

[0092] Furthermore, a second rotation limiting arc portion 85 is provided at the bottom end of the vertical lifting track 8 corresponding to the circumference of the core shaft 61 .

[0093] Furthermore, the end of the inclined descending track 92 is open, and the track support surface extends toward the end, and a third rotation limiting arc surface portion 95 and a second stop block 96 are provided at the extended portion.

[0094] Furthermore, a plurality of through holes 72 are provided on the support surface of the empty roller track 7 corresponding to the first stop blocks 71 for the first stop blocks 71 to pass through; the first stop blocks 71 are independently driven to move by the stop telescopic rods 73 .

[0095] The winding method of the automatic winding mechanism comprises the following steps:

[0096] ①See Figure 5 , the stopping telescopic rod 73 at the bottom drives the corresponding first stopping block 71 to move downward, so that the upper end surface of the first stopping block 71 is flush with the supporting surface of the empty roller track 7, so that the empty winding tube 6 stopped by the first stopping block 71 rolls downward to the second rotation limiting arc surface 85 of the vertical lifting track 8; then the stopping telescopic rod 73 drives the bottom first stopping block 71 to be lifted to the stopping position extending into the empty roller track 7; then the stopping telescopic rod 73 adjacent to the stopping telescopic rod 73 repeats the action of the stopping telescopic rod 73 in turn, so that all the empty rollers are sequentially lowered by one stopping position;

[0097] ②See Figure 6 and 7 , push the telescopic rod 81 vertically to lift the empty winding roller 6 to the top of the vertical lifting track 8, so that the ring gear on the mandrel 61 is meshed with the driving gear 84, and the driving gear 84 drives the winding roller 6 to rotate and rewind;

[0098] ③See Figure 8and 9 When the winding is about to be completed, the vertical push telescopic rod 81 drives the winding roller 6 to descend to the entrance position of the corresponding inclined rising track 91. When it descends to this position, the oblique push telescopic rod 93 just contacts the core shaft 61 to push the winding roller 6 to enter and move along the inclined rising track 91 to the intersection with the inclined descending track 92 and stop. At this time, the vertical push telescopic rod 81 continues to move down to the bottom end of the vertical lifting track 8; the winding roller 6 rolls along the inclined descending track 92 to the third rotation limit arc portion 95 under the action of gravity and inertia; in this process, the moving distance of the winding roller 6 on the full roller track 9 automatically compensates for the continuous feeding amount of the tape;

[0099] ④See Fig.10 , while the oblique push telescopic rod 93 pushes the winding roller 6, the vertical push telescopic rod 81 that has been lowered to the initial position lifts the second empty winding roller 6 that enters the second rotation limit arc panel 85 to the top of the vertical lifting track 8; before the second winding roller 6 is lifted to the top of the vertical lifting track 8, the first winding roller 6 has not yet rolled to the third rotation limit arc surface 95;

[0100] ⑤See Figures 11 to 14 At the same time as step ④ is being performed, the cutting telescopic rod 101 drives the extrusion guide plate 103 to move downward. First, the arc panel 105 contacts the adhesive tape supported on the empty winding roller 6 located at the top of the vertical lifting track 8 at this time, and extrudes and guides the adhesive tape along the surface of the winding roller 6, so that the contact between the adhesive tape and the surface of the winding roller 6 is changed from line contact to surface contact; at the same time, the deformed extrusion plate 106 is controlled to bend downward by an external electric field, so as to further increase the surface contact area between the adhesive tape and the surface of the winding roller 6. At the same time, the deformed extrusion plate 106 drives the cutting blade 104 to deflect downward during the outward bending process to cut the adhesive tape; at this time, the adhesive tape of the full-rolled winding roller 6 located at the third rotation limiting arc portion 95 is cut, and the adhesive tape on one side of the cut is completely rolled up under the inertial rotation of the full-rolled winding roller 6; the adhesive tape on the other side of the cut is squeezed by the extrusion guide plate 103 and adheres to the winding roller 6 located at the top of the vertical lifting track 8 at this time in a large area for a new round of winding.

[0101] The automatic winding mechanism utilizes an empty roller track, a vertical lifting track and a full roller track to automatically feed rollers and switch between empty rollers and full rollers, and the switching process will not affect the feeding of the tape at the original speed, thereby maintaining the continuity and uniformity of tape production and significantly improving the efficiency of tape production; and utilizes an extrusion-guided cutting mechanism to cut the tape while changing the roller, and at the same time ensure that the broken portion of the tape adheres stably to the new empty roller, so that the tape can be seamlessly switched to be wound on the new roller, and the entire process does not require manual operation of changing rollers and adhering tapes, so the efficiency is extremely high and stable, and both the production efficiency and the stability of the tape winding quality are significantly improved.

[0102] The automatic winding mechanism utilizes simple action changes of the stop telescopic rod and the first stop block to realize the feeding of the empty roller to the vertical lifting track in sequence according to the control requirements, thereby ensuring the continuous automatic replenishment of the empty roller; the structure and control program requirements are extremely simple, the operation is relatively stable, and the failure rate is low; the empty roller can be simply and quickly lifted to the top of the vertical lifting track by using the vertical push telescopic rod, and the gear ring on the core shaft is engaged with the external driving gear, so that the empty roller can be directly, quickly and stably driven to rotate for winding, and the position characteristics of the vertical lifting track and the inclined lifting track and the inclined push telescopic rod are utilized. The retracting rod cleverly utilizes the intersection of the two tracks to achieve seamless switching of the push rod and change of the moving direction of the winding roller, so that the winding roller that is about to be wound up moves to the inclined ascending track, and utilizes the angular relationship between the inclined ascending track and the inclined descending track to make the winding roller automatically fall on the inclined descending track, and roll to the third rotation limit arc surface under the action of gravity; and the movement process of the winding roller is cleverly utilized to compensate for the feeding amount of the tape during this period, so as to keep the tape straight, and at the same time use this period of time to complete the action of lifting a new empty roller to the top of the vertical lifting track for roller replacement; so that the new empty roller The support tape on the roller contacts the tape, and at the same time, the extrusion guide cutting mechanism is used to directly convert the line contact between the tape and the empty roller into surface contact, thereby increasing the adhesion area between the tape and the empty roller and improving the stability and accuracy when the empty roller is rolled up; and the extrusion guide cutting mechanism adopts a deformable extrusion plate, and the deformable extrusion plate is bent by using the characteristics of piezoelectric ceramics, so that the tape can be adhered to the empty roller over a large area when it contacts the empty roller without interfering with the tape during lifting and lowering; and the bending process of the deformable pressure plate is used to automatically realize the deflection of the cutting blade, so as to accurately and cleanly cut The tape can be cut off and the broken tape can be adhered to the surface of the empty roller in a large area, so as to avoid the tape being separated from the surface of the empty roller and unable to be reeled up. Moreover, the design not only makes the cutting process of the cutting blade accurate and crisp, but also ensures that the cutting blade will not damage the tape when the deformed pressure plate is not bent. The entire automatic reeling mechanism utilizes a simple but stable mechanism, and realizes multiple technical effects at the same time, and cleverly realizes the operations of automatic empty roller feeding, automatic switching between empty roller and full roller, and automatic tape cutting, which can significantly improve the production efficiency of the tape and reduce time and labor costs.

[0103] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for preparing an easy-to-tear tensile-resistant paper tape, characterized in that: It includes the following steps: S1 Preparation of chitosan methacrylate: dissolve chitosan in acetic acid aqueous solution, heat to 80-85°C, add methacrylate, vinyl triisopropoxy silicon and potassium persulfate in sequence, and then heat to 85-92°C to react to obtain the chitosan methacrylate; the weight parts are: 10-15 parts of chitosan, 100-110 parts of methacrylate, 1-3 parts of vinyl triisopropoxy silicon and 0.4-0.6 parts of potassium persulfate; S2 base paper processing: the Japanese paper base paper by immersing it in an impregnation solution to coat the surface of the tensile layer to obtain a base paper, wherein the impregnation solution is chitosan methacrylate dispersed in a phosphate buffer; the concentration of chitosan methacrylate is 45% or 60%; Preparation of S3 glue; S4 applies the prepared glue on the base paper to obtain the washi tape and rolls it up.

2. The method for preparing the tearable tensile-resistant paper tape according to claim 1, characterized in that: The preparation of the glue comprises the following steps: Dissolve ethyl acrylate, isooctyl methacrylate, methacrylic acid, and hydroxyethyl methacrylate in butyl acetate and stir evenly to obtain a mixed solution; The mixed solution was heated to 80-85°C, methyl ethyl ketone peroxide and methyl acrylate were added, reacted for 3-5 hours, polyether modified silicon was added, stirred and mixed for 10-15 minutes, cooled to 35-40°C, and the viscosity was adjusted to 12000-15000 mpa·s to obtain glue.

3. The method for preparing the tearable tensile-resistant paper tape according to claim 2, characterized in that: In terms of weight, the raw materials in the glue are: 12-25 parts of ethyl acrylate, 22-25 parts of isooctyl methacrylate, 7-9 parts of methacrylic acid, 0.1-0.2 parts of polyether modified silicone, 0.25-0.35 parts of hydroxyethyl methacrylate, 40-55 parts of butyl acetate, 0.05-0.1 parts of methyl ethyl ketone peroxide, and 3-8 parts of methyl acrylate.

4. The method for preparing the tearable tensile-resistant paper tape according to claim 1, characterized in that: The gluing process in step S4 uses a coating device, the coating device comprising a glue storage chamber (2) suspended and fixed above the adhesive tape base paper (1); a bowl-shaped polarizer (3) with a horizontal bottom is arranged outside the glue storage chamber (2); along the advancing direction of the adhesive tape base paper (1), a plurality of power push rods (31) are horizontally connected between the front and rear inner walls of the polarizer (3) and the glue storage chamber (2); the power push rods (31) support the polarizer (3) to be suspended in the air and can be driven The polarizer (3) repeatedly translates forward and backward at high speed; a glue outlet slit (32) is provided at the center of the bottom of the polarizer (3) along the width direction of the adhesive tape base paper (1); detachable glue coating sheets (33) are respectively attached to the bottom of the polarizer (3) on both sides of the front and rear of the glue outlet slit (32); the glue storage chamber (2) and the polarizer (3) enclose a glue extrusion chamber (34); and a plurality of through holes are provided on the side wall of the glue storage chamber (2) to connect the glue extrusion chamber (34) and the glue storage chamber (2).

5. The method for preparing the tearable and tensile-resistant paper tape according to claim 4, characterized in that: Wind shields (4) are also provided on both the front and rear sides of the polarizer (3); the upper end of the wind shield (4) is hinged on a fixed beam (5); the lower end extends to the upper side of the adhesive tape base paper (1) and close to the adhesive tape base paper (1); the wind shield (4) and the front and rear walls of the polarizer (3) respectively enclose an air suction cavity (41); along the width direction of the adhesive tape base paper (1), the left and right sides of the air suction cavity (41) are respectively abutted against a side wind shield (42) to shield the left and right sides of the air suction cavity (41); the upper part of the air suction cavity (41) is also connected to the upper end of the polarizer (3) and the wind shield (4 ) are connected between the wind deflector (4) and the polarizer (3) to shield the upper surface of the air suction chamber (41); a telescopic driving mechanism (44) is connected to the lower outer wall of the wind deflector (4); the other end of the telescopic driving mechanism (44) is fixed to a vertical fixed plate (45); the vertical fixed plate (45) is fixedly connected to the fixed beam (5); the telescopic driving mechanism (44) controls the size of the air suction port (47) formed by the lower part of the wind deflector (4) and the lower part of the polarizer (3); and a suction pipe (46) connected to the air suction chamber (41) is fixed on the elastic telescopic film (43).

6. The method for preparing the tearable and tensile-resistant paper tape according to claim 5, characterized in that: The glue storage chamber (2) is wide at the top and narrow at the bottom; the front and rear side walls of the polarizer (3) are arranged vertically, so that the enclosed glue extrusion chamber (34) is narrow at the top and wide at the bottom; the bottoms of the front and rear side walls of the polarizer (3) are chamfered; the lower end of the wind deflector (4) is bent toward one side of the polarizer (3); a glue supply hose (21) is inserted from the top of the glue storage chamber (2); the lower end of the wind deflector (4) is deflected toward one side of the polarizer (3) so that the air suction chamber (41) is larger at the top and smaller at the bottom.

7. The method for preparing the tearable and tensile-resistant paper tape according to claim 6, characterized in that: The power push rod (31) comprises a hollow cylindrical barrel (311), a piston (312) slidably sleeved in the barrel (311), and a rod body (313) with one end connected to the piston (312) and the other end extending out of the barrel (311); the piston (312) and the barrel (311) enclose a liquid cavity (314); an electrode pair (315) is arranged in the liquid cavity (314); the liquid cavity (314) is filled with water; an external circuit applies an electric field to the electrode pair (315) to generate a liquid-electric effect to impact the piston (312) so as to push the rod body (313) outward.

8. The method for preparing the tearable and tensile-resistant paper tape according to claim 7, characterized in that: The telescopic driving mechanism (44) comprises a first rod (441) and a second rod (442) which are arranged opposite to each other, and a linear sleeve (443) which is slidably sleeved outside the first rod (441) and the second rod (442); a partition plate (444) is fixed inside the middle of the linear sleeve (443); an arc-shaped piezoelectric deformation plate (445) is fixed to the left and right ends of the partition plate (444); the upper and lower ends of the piezoelectric deformation plate (445) are fixedly connected to the partition plate (444) respectively; the piezoelectric deformation plate (445) comprises a middle elastic insulating sheet (447) and piezoelectric ceramic sheets (448) attached to both sides of the middle elastic insulating sheet (447); under the action of an external electric field, one of the two piezoelectric ceramic sheets (448) is extended and the other is shortened, so that the middle of the piezoelectric deformation plate (445) bulges outward, thereby pushing the first rod (441) and the second rod (442) to extend.

9. The method for preparing the tearable and tensile-resistant paper tape according to claim 8, characterized in that: The coating method of the coating device comprises the following steps: ① The adhesive tape base paper (1) moves forward from below the polarizer (3) with a small gap between it and the polarizer (3); at the same time, an electric field is applied alternately to the electrode pairs (315) in the power push rods (31) on the left and right sides to generate a hydroelectric effect in the water in the liquid chamber (314), thereby generating an impact force to push the piston (312) and the rod body (313) outward; thereby, the polarizer (3) is repeatedly moved back and forth quickly and in a small amplitude along the advancing direction of the adhesive tape base paper (1); ② When the rear power push rod (31) pushes, the polarizer (3) moves forward and squeezes the front glue extrusion cavity (34), and the glue liquid in the side glue extrusion cavity (34) is squeezed out from the glue outlet slit (32) onto the adhesive tape base paper (1). At the same time, the polarizer (3) moves forward at the same time, so that the glue coating sheet (33) at its lower end smears the glue liquid forward; at the same time, in the process of the polarizer (3) moving forward, the front air suction port (47) is reduced, the wind speed is increased, and the rear air suction port (47) is increased, and the wind speed is reduced, so that the adhesive tape base paper (1) in front of the glue outlet slit (32) is more tightly attached to the glue coating sheet (33), and the rear adhesive tape base paper (1) is loosely attached to the glue coating sheet (33), thereby matching the moving direction of the polarizer (3) at this time, absorbing the glue liquid to flow in the moving direction of the polarizer (3), and facilitating the directional expansion of the glue liquid in the glue coating action; ③ When the front power push rod (31) pushes, the polarizer (3) moves forward and backward, squeezing the glue extrusion cavity (34) at the rear, and the glue liquid in the glue extrusion cavity (34) is squeezed out from the glue outlet slit (32) onto the adhesive tape base paper (1). At the same time, the polarizer (3) moves backward at the same time, so the glue coating sheet (33) at its lower end smears the glue liquid toward the rear; at the same time, the air suction port (47) at the rear is reduced in size and the wind speed is increased during the backward movement of the polarizer (3), while the air suction port (47) at the front is increased and the wind speed is reduced, so that the adhesive tape base paper (1) behind the glue outlet slit (32) is more tightly attached to the glue coating sheet (33), and the adhesive tape base paper (1) at the front is loosely attached to the glue coating sheet (33), thereby matching the moving direction of the polarizer (3) at this time, absorbing the glue liquid to flow in the moving direction of the polarizer (3), and facilitating the directional expansion of the glue liquid in the glue coating action; ④ If it is found during the gluing process that the flow expansibility of the glue on the adhesive tape base paper (1) deviates greatly from the set requirements, the piezoelectric ceramic sheet (448) can be controlled by a circuit to extend or shorten so that the protruding distance of the middle part of the piezoelectric deformation plate (445) becomes longer or shorter, thereby synchronously supplementing and adjusting the size change of the suction port (47) each time the size of the suction port (47) changes.

10. An easy-tear tensile-resistant paper tape prepared by the preparation method according to any one of claims 1 to 9.

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