Efficient release roller and label printer

Abstract

The utility model discloses an efficient release roller and a label printer. The efficient release roller comprises a shaft core body, a connecting layer, a protective sleeve and a coating layer, the shaft core body and the protective sleeve are connected through the connecting layer, and the coating layer is formed on the outer surface of the protective sleeve. The high-efficiency release roller is mainly used on a driving part of a small backing-paper-free label printer, can be used for printing backing-paper-free labels, improves the printing effect, and reduces the energy consumption in the production process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of label printing, in particular to an efficient release roller and a label printer. BACKGROUND

[0002] The small label printer in the prior art generally uses label paper with a backing paper. The use of the backing paper will cause cost and environmental problems, and a label printer without a backing paper will be the main force in the future market. The demand for an efficient release roller used by the corresponding driving part of the label printer without a backing paper will increase. In the prior art, the efficient release roller is obtained by spraying paint on the surface of a metal shaft. The efficient release roller obtained by spraying paint on the surface of the metal shaft is heavy, which will increase the weight of the label printer. The efficient release roller obtained by spraying paint on the surface of the metal shaft has the problem of unclear small font on the label paper. The efficient release roller obtained by spraying paint on the surface of the metal shaft needs to use a special high-temperature oven in preparation, and the energy consumption is too high. CONTENT OF THE UTILITY MODEL

[0003] Therefore, it is necessary to provide an efficient release roller. The efficient release roller can be used for label printing without a backing paper, improve the printing effect, and reduce energy consumption in the production process.

[0004] An embodiment of the present application provides an efficient release roller.

[0005] An efficient release roller comprises a shaft core body, a connecting layer, a protective sleeve and a coating layer. The shaft core body and the protective sleeve are connected through the connecting layer, and the coating layer is formed on the outer surface of the protective sleeve.

[0006] In some embodiments, the protective sleeve has elasticity.

[0007] In some embodiments, the protective sleeve is a silica gel sleeve.

[0008] In some embodiments, the outer surface of the protective sleeve has a pattern.

[0009] In some embodiments, the number of the pattern on the outer surface of the protective sleeve is multiple.

[0010] In some embodiments, each pattern on the outer surface of the protective sleeve is not communicated.

[0011] In some embodiments, the depth of the pattern on the outer surface of the protective sleeve is 0.01mm-0.1mm.

[0012] In some embodiments, the thickness of the connecting layer of the protective sleeve is 0.01mm-0.1mm.

[0013] In some embodiments, the thickness of the protective sleeve is 1mm-10mm.

[0014] In some embodiments, the thickness of the coating layer is 4um-10um.

[0015] An embodiment of the present application further provides a label printer.

[0016] A label printer comprises a printer body and the high-efficiency release roller.

[0017] The high-efficiency release roller produced by the preparation method of the present application is mainly used on the driving component of a small-sized label printer without paper, and can be used for label printing without paper, improve the printing effect, and reduce energy consumption in the production process.

[0018] Further, the high-efficiency release roller of the present application can reduce the weight of the high-efficiency release roller and the problem of unclear small font caused by lack of elasticity by selecting silica gel base material, and can avoid the risk of paper sticking by forming special lines on the surface of the high-efficiency release roller product through special processing of the inner surface of the forming mold; the use of low-temperature forming non-stick coating can select ordinary heating equipment in production, reduce energy consumption in the production process, and reduce production cost. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0020] In order to more completely understand the present application and its beneficial effects, the following will be described with reference to the drawings. In the following description, the same reference numerals represent the same parts.

[0021] Figure 1 The high-efficiency release roller of an embodiment of the present application is shown in the schematic diagram.

[0022] EXPLANATION OF REFERENCE NUMERALS

[0023] 10, high-efficiency release roller; 100, shaft core body; 200, connecting layer; 300, protective sleeve; 400, coating layer. DETAILED DESCRIPTION

[0024] In order to make the above object, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways other than those described herein, and skilled in the art can make similar improvements without departing from the spirit of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0025] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0026] In the present application, unless otherwise specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specified. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In the present application, unless otherwise specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0028] In the description of the utility model, if several means more than one, the meaning of multiple is more than two, greater than, less than, more than and the like are understood as not including the number, above, below, within and the like are understood as including the number. If it is described to the first, the second is only used for distinguishing the purpose of technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0029] In this paper, "optionally", "optional", "optional" means optional, that is, selected from "have" or "no" two parallel schemes. If there are multiple "optional" in a technical solution, unless otherwise specified, and there is no contradiction or mutual restriction, each "optional" is independent. In this application, "optionally contains", "optionally contains" and the like, means "contains or does not contain".

[0030] In this paper, unless otherwise specified, each reaction step can be carried out in the order described in the text, or not in the order described in the text. For example, other steps can be included between each reaction step, and the order of the reaction steps can also be appropriately changed. This can be determined by the skilled person according to conventional knowledge and experience. Preferably, the reaction method in this paper is sequential.

[0031] In this application, the numerical interval (i.e. the numerical range) is involved, such as without special instructions, the distribution of the optional value in the numerical interval is considered to be continuous, and includes the two numerical endpoints (i.e. the minimum value and the maximum value) of the numerical interval, and each value between the two numerical endpoints. If not specified, when the numerical interval only points to the integer in the numerical interval, including the two endpoint integers of the numerical range and each integer between the two endpoints, it is equivalent to directly listing each integer. When multiple numerical ranges are provided to describe characteristics or properties, these numerical ranges can be combined. In other words, unless otherwise indicated, the numerical range disclosed in this application should be understood to include any and all subranges included therein. The "value" in the numerical interval can be any quantitative value, such as a number, a percentage, a ratio, etc. The "numerical interval" allows the percentage interval, the ratio interval, the ratio interval, etc. Quantitative interval is allowed.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0033] The embodiment of the present application provides a high-efficiency release roller to solve at least one of the following problems of the high-efficiency release roller obtained by spraying paint on the surface of a metal shaft in the prior art: (1) the high-efficiency release roller obtained by spraying on the surface of the metal shaft is heavy, which will increase the weight of the label printer; (2) the high-efficiency release roller sprayed on the surface of the metal shaft has the problem that small fonts on the label paper are not clear; (3) the high-efficiency release roller sprayed on the surface of the metal shaft needs to use a special high-temperature oven in preparation, and the energy consumption is too high. The high-efficiency release roller will be described below with reference to the drawings.

[0034] The embodiment of the present application provides a high-efficiency release roller 10, and an example is shown in Figure 1 Figure 1 The embodiment of the present application provides a high-efficiency release roller 10, and an example is shown in

[0035] An example of a preparation method of the high-efficiency release roller includes the following steps:

[0036] The shaft core body 100 is obtained and is ready for use.

[0037] The outer surface of the shaft core body 100 is coated with an adhesive to form a connecting layer for connecting the outer surface of the shaft core body 100 and the protective sleeve 300.

[0038] The shaft core body 100 coated with the adhesive is placed in an injection mold, liquid material is injected into the injection mold, and heating forming is performed to obtain the protective sleeve 300 sleeved on the shaft core body 100.

[0039] And the outer surface of the protective sleeve 300 is coated with paint, and the coating layer 400 is obtained after curing treatment.

[0040] The high-efficiency release roller 10 described above, the high-efficiency release roller 10 produced by the preparation method of the present application is mainly used on the driving component of a small-size label printer without paper, can be used for label printing without paper, improves the printing effect, and reduces the energy consumption in the production process.

[0041] In some embodiments, the liquid material includes liquid silica gel, and correspondingly, the protective sleeve 300 with elasticity is a silica gel sleeve.

[0042] In some embodiments, the preparation method of the high-efficiency release roller 10 further includes the following steps: after the shaft core body 100 is obtained, the part of the shaft core body 100 that needs to be coated with the adhesive is polished to remove the rust-proof plating layer and improve the friction between the shaft core body 100 and the protective sleeve 300.

[0043] ​In some embodiments, the adhesive includes one or more of reactive adhesives.

[0044] In some embodiments, the reactive adhesive includes one or more of epoxy, polyurethane, silicone, acrylic, anaerobic adhesives.

[0045] In some embodiments, the adhesive is selected from dow DY39-051A / B model, available from Dow Chemical (China) Co., Ltd.

[0046] In some embodiments, the inner wall of the injection mold has a number of textures to make the surface roughness of the product Rz>20μm.

[0047] In some embodiments, the texture of the inner wall of the injection mold is prepared by EDM discharge etching process. EDM (Electrical Discharge Machining) discharge etching process is a precision machining method that uses the effect of electric spark corrosion to remove materials. It is mainly applied to hard or complex shape conductive materials that are difficult to process by traditional mechanical machining methods, such as mold manufacturing, aviation parts, electronic components, etc.

[0048] Working principle of EDM discharge etching process: EDM process is based on the principle of electric spark discharge, that is, a certain voltage is applied between the workpiece and the tool electrode, and it is immersed in an insulating working fluid. When the tool electrode approaches the workpiece to a certain distance, the working fluid is broken down to form a transient high-temperature and high-pressure spark channel due to the high enough electric field strength. The local high temperature generated by the spark channel is enough to melt or vaporize the material on the surface of the workpiece. With the extinction of the spark, the melted material is carried away by the working fluid, thereby realizing the removal of the material.

[0049] In this application, the process characteristics of EDM discharge etching process: (1) High precision: very complex geometric shape machining can be achieved, with minimum micron level size. (2) No cutting force: there is no direct mechanical contact during machining, so there is no mechanical stress deformation to the workpiece. (3) Suitable for hard materials: can process materials with very high hardness or brittleness, such as hard alloy, quenched steel, titanium alloy, etc. (4) Small heat-affected zone: although there is a thermal process involved, the heat-affected zone can be minimized by controlling the parameters. (5) High degree of automation: modern EDM equipment is usually equipped with advanced control systems, which can realize highly automated machining process.

[0050] In some embodiments, the heating temperature is 140-150 °C and the heating time is 10-15 min during the heating forming. The heating temperature can include but is not limited to 140 °C, 145 °C, 150 °C or a range between any two of the above. The heating time can include but is not limited to 10 min, 13 min, 15 min or a range between any two of the above.

[0051] In some embodiments, the method for preparing the high-efficiency release roller 10 further comprises the following steps: after the heating forming, the protective sleeve 300 sleeved on the shaft core body 100 is cut and subjected to secondary heating treatment, the heating temperature during the secondary heating treatment is 180-200 °C and the heating time is 60-80 min. The heating temperature during the secondary heating treatment can include but is not limited to 180 °C, 190 °C, 200 °C or a range between any two of the above. The heating time during the secondary heating treatment can include but is not limited to 60 min, 70 min, 80 min or a range between any two of the above.

[0052] In some embodiments, the coating includes a silicone oil compound, a diluent and a catalyst, and the mass ratio of the silicone oil, the diluent and the catalyst is (100-120):(400-600):(1-5). For example, the mass ratio of the silicone oil, the diluent and the catalyst is 100:500:1. For another example, the mass ratio of the silicone oil, the diluent and the catalyst is 120:600:5. For yet another example, the mass ratio of the silicone oil, the diluent and the catalyst is 110:500:3. In the present application, the non-stick coating is selected for spraying to form the coating layer 400, which further improves the non-stick property of the high-efficiency release roller 10 and improves the printing effect of the high-efficiency release roller 10. The production process of the non-stick coating can adopt a normal temperature process, thereby reducing the energy consumption in the production process of the high-efficiency release roller 10.

[0053] In some embodiments, the silicone oil compound includes one or more of phenyl silicone oil, dimethyl silicone oil and ethyl silicone oil.

[0054] In some embodiments, the diluent includes one or more of heptanes.

[0055] In some embodiments, the thickness of the coating layer 400 is 4-10 μm. The thickness of the coating layer 400 during the secondary heating treatment can include but is not limited to 4 μm, 5 μm, 6 μm, 7 μm, 8 μm, 10 μm or a range between any two of the above.

[0056] In some embodiments, the curing process includes the step of curing the sprayed product at a temperature of 150-180℃ for 0.5-1h. For example, the curing process includes the step of curing the sprayed product at a temperature of 150℃ for 1h. For another example, the curing process includes the step of curing the sprayed product at a temperature of 180℃ for 0.5h.

[0057] In some embodiments, the curing process includes the step of curing the sprayed product at a temperature of 150-180℃ for 0.5-1h. For example, the curing process includes the step of curing the sprayed product at a temperature of 150℃ for 1h. For another example, the curing process includes the step of curing the sprayed product at a temperature of 180℃ for 0.5h.

[0058] An embodiment of the present application further provides a high-efficiency release roller 10.

[0059] A high-efficiency release roller 10 is prepared by the above preparation method.

[0060] In some embodiments, the high-efficiency release roller 10 includes a shaft core body 100, a connecting layer 200, an elastic protective sleeve 300, and a coating layer 400. The shaft core body 100 and the protective sleeve 300 are connected by the connecting layer 200, and the coating layer 400 is formed on the outer surface of the elastic protective sleeve 300.

[0061] In some embodiments, the protective sleeve 300 is elastic. The elastic protective sleeve 300 can solve the problem of unclear small fonts.

[0062] In some embodiments, the protective sleeve 300 is a silica gel sleeve. The silica gel sleeve prepared by selecting a silica gel base material can reduce the weight of the protective sleeve 300 and the overall weight of the high-efficiency release roller 10.

[0063] In some embodiments, the outer surface of the protective sleeve 300 has a pattern. The outer surface of the protective sleeve 300 has a special pattern formed by the special treatment of the inner surface of the forming mold, so as to reduce the contact area between the protective sleeve 300, the coating layer 400, and the paper, and to reduce or avoid the risk of sticking to the paper.

[0064] In some embodiments, the outer surface of the protective sleeve 300 has a plurality of patterns.

[0065] In some embodiments, each pattern on the outer surface of the protective sleeve 300 is not connected. It should be noted that each pattern on the outer surface is not connected, which means that each pattern extends along an independent direction, which can be linear extension or curved extension. Adjacent patterns are independent of each other and do not interfere with each other.

[0066] In some embodiments, the pattern on the outer surface of the protective sleeve 300 can be a long strip-shaped groove extending along the length direction of the protective sleeve 300.

[0067] In some embodiments, the depth of the texture is 0.01mm-0.1mm. The depth of the texture can be 0.01mm, 0.02mm, 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.1mm or other values and ranges between any two of the above values.

[0068] In some embodiments, the thickness of the connecting layer 200 is 0.01mm-0.1mm. The thickness of the connecting layer 200 can be 0.01mm, 0.03mm, 0.05mm, 0.07mm, 0.1mm or other values and ranges between any two of the above values.

[0069] In some embodiments, the thickness of the protective sleeve 300 is 0.1mm-1mm. The thickness of the protective sleeve 300 can be 0.1mm, 0.3mm, 0.5mm, 0.7mm, 1mm or other values and ranges between any two of the above values.

[0070] In some embodiments, the thickness of the coating layer 400 is 4μm-10μm. The thickness of the coating layer 400 can be 4μm, 5μm, 6μm, 7μm, 8μm, 9μm, 10μm or other values and ranges between any two of the above values.

[0071] In some embodiments, the shaft core body 100 can be a metal shaft. It should be noted that the shaft core body 100 is in a columnar structure as a whole, the protective sleeve 300 is in a circular ring structure as a whole, and the protective sleeve 300 is sleeved on the shaft core body 100. In terms of size, the sum of the outer diameter of the shaft core body 100 and the outer diameter of the connecting layer 200 is equal to the inner diameter of the protective sleeve 300.

[0072] In some embodiments, the outer diameter and length of the shaft core body 100 can be set according to actual needs, which can match the corresponding printer body.

[0073] An embodiment of the present application also provides a label printer.

[0074] A label printer comprises a printer body and the high-efficiency release roller 10 described above.

[0075] Embodiment 1

[0076] The embodiment provides a high-efficiency release roller 10.

[0077] The high-efficiency release roller 10 comprises a shaft core body 100, a connecting layer 200, an elastic protective sleeve 300, and a coating layer 400. The shaft core body 100 and the protective sleeve 300 are connected through the connecting layer 200, and the coating layer 400 is formed on the outer surface of the protective sleeve 300. The outer surface of the protective sleeve 300 has a texture.

[0078] The high-efficiency release roller 10 of the embodiment is prepared by the following preparation method.

[0079] A preparation method of a high-efficiency release roller comprises the following steps:

[0080] (1) Obtain the shaft core body 100, and polish the part of the shaft core body 100 that needs to be coated with an adhesive to remove the rust-proof plating layer and improve the friction between the shaft core body 100 and the protective sleeve 300.

[0081] (2) Coat an adhesive reaction type adhesive (dow DY39-051A / B) on the outer surface of the shaft core body 100 to form the connecting layer 200, and the thickness of the connecting layer 200 is 0.1 mm.

[0082] (3) Assemble an injection mold, and a plurality of textures are prepared on the inner wall of the injection mold by an EDM discharge etching process. The depth of the texture is 0.07 mm, and adjacent textures are not communicated. Place the shaft core body 100 coated with the adhesive in the injection mold, inject liquid silicone into the injection mold, and heat form under the condition of a temperature of 140℃ and 15 min. The liquid silicone is solidified to form the silicone protective sleeve 300 with a certain elasticity. The injection mold can be reused after cleaning. It should be noted that the connecting layer 200 is in a non-solidified state during heating, and the outer surface of the shaft core body 100 and the protective sleeve 300 can be connected when cooled.

[0083] (4) Cut the protective sleeve 300 sleeved on the shaft core body 100, and perform secondary heating treatment under the condition of a temperature of 180℃ and 80 min to obtain the protective sleeve 300 sleeved on the shaft core body 100. The thickness of the protective sleeve 300 is 1 mm.

[0084] (5) Configure the paint, and the mass ratio of the silicone oil compound (methyl silicone oil), the diluent white oil, and the catalyst is 100:400:1.

[0085] (6) Coat the paint on the outer surface of the protective sleeve 300, place the sprayed product in an oven at a temperature of 150℃ for 1 h for solidification, and obtain the coating layer 400 with a thickness of 4μm after the solidification treatment.

[0086] Example 2

[0087] The embodiment provides a high-efficiency release roller 10.

[0088] The high-efficiency release roller 10 comprises a shaft core body 100, a connecting layer 200, a protective sleeve 300 with elasticity, and a coating layer 400, the shaft core body 100 and the protective sleeve 300 are connected through the connecting layer 200, and the coating layer 400 is formed on the outer surface of the protective sleeve 300. The outer surface of the protective sleeve 300 has a pattern.

[0089] The high-efficiency release roller 10 of the embodiment is prepared by the following preparation method.

[0090] A preparation method of a high-efficiency release roller, comprising the following steps:

[0091] (1) Obtain the shaft core body 100, and polish the part of the shaft core body 100 that needs to be coated with an adhesive to remove the rust-proof plating layer and improve the friction between the shaft core body 100 and the protective sleeve 300.

[0092] (2) Coat the outer surface of the shaft core body 100 with an adhesive reactive adhesive (dow DY39-051A / B) to form the connecting layer 200, and the thickness of the connecting layer 200 is 0.1 mm.

[0093] (3) Assemble an injection mold, the inner wall of the injection mold is prepared with a plurality of patterns by an EDM discharge etching process, and the liquid silicone rubber forms a silicone protective sleeve 300 with elasticity after solidification. The injection mold can be reused after cleaning.

[0094] (4) Cut the protective sleeve 300 sleeved on the shaft core body 100, and perform secondary heating treatment at a temperature of 180°C for 80 min to obtain the protective sleeve 300 sleeved on the shaft core body 100, and the thickness of the protective sleeve 300 is 10 mm.

[0095] (5) Prepare the paint, and the mass ratio of the silicone oil compound (methyl silicone oil), the diluent white petrolatum, and the catalyst is 120:600:5.

[0096] (6) Coat the outer surface of the protective sleeve 300 with the paint, place the sprayed product in an oven at a temperature of 180°C for 0.5 h for solidification, and obtain the coating layer 400 with a thickness of 10 μm after the solidification treatment.

[0097] Comparative Example 1

[0098] The comparative example provides a high-efficiency release roller.

[0099] The high-efficiency release roller of the comparative example is basically the same as that of the embodiment 1, and the difference lies in that the comparative example does not contain a coating layer.

[0100] The high-efficiency release roller comprises a shaft core body, a connecting layer, and a protective sleeve with elasticity, and the shaft core body and the protective sleeve are connected through the connecting layer. The outer surface of the protective sleeve has a pattern.

[0101] The high-efficiency release roller of the present comparative example was prepared by the same method as that of Example 1, except that the present comparative example did not contain steps (5) and (6).

[0102] In Comparative Example 1, the coating layer was not contained, which resulted in insufficient release property of the surface of the protective sleeve, and the problem of paper sticking occurred during use.

[0103] Comparative Example 2

[0104] The present comparative example provides a high-efficiency release roller.

[0105] The high-efficiency release roller of the present comparative example was the same as that of Example 2, except that the present comparative example did not contain the connecting layer.

[0106] The high-efficiency release roller comprises a shaft core body, a protective sleeve with elasticity, and a coating layer, and the coating layer is formed on the outer surface of the protective sleeve. The outer surface of the protective sleeve has a pattern.

[0107] The high-efficiency release roller of the present comparative example was prepared by the same method as that of Example 1, except that the present comparative example did not contain step (2).

[0108] In Comparative Example 2, the adhesive was not contained, which resulted in the protective sleeve falling off from the shaft core during use of the finished product and the failure to use.

[0109] Comparative Example 3

[0110] The present comparative example provides a high-efficiency release roller.

[0111] The high-efficiency release roller of the present comparative example was the same as that of Example 2, except that the present comparative example did not contain the pattern of the injection mold.

[0112] The high-efficiency release roller comprises a shaft core body, a connecting layer, a protective sleeve with elasticity, and a coating layer, and the shaft core body and the protective sleeve are connected through the connecting layer, and the coating layer is formed on the outer surface of the protective sleeve.

[0113] The high-efficiency release roller of the present comparative example was prepared by the same method as that of Example 2, except that the present comparative example did not contain the pattern of the inner wall of the injection mold in step (3).

[0114] In Comparative Example 3, the inner wall of the injection mold in step (3) did not contain the pattern, so that the outer surface of the protective sleeve did not have the pattern, which resulted in the problem of paper sticking caused by the excessive friction coefficient of the surface of the protective sleeve.

[0115] Comparative Example 4

[0116] The present comparative example provides a high-efficiency release roller.

[0117] The high-efficiency release roller of the present comparative example is basically the same as that of Example 2, except that in the present comparative example, the mass ratio of the silicone oil compound, the diluent white petrolatum, and the catalyst in the coating of step (5) is 50:600:5.

[0118] The high-efficiency release roller comprises a core body, a connecting layer, a protective sleeve with elasticity, and a coating layer. The core body and the protective sleeve are connected through the connecting layer, and the coating layer is formed on the outer surface of the protective sleeve.

[0119] The high-efficiency release roller of the present comparative example is prepared by basically the same method as that of Example 2, except that in the present comparative example, the mass ratio of the silicone oil compound (methyl silicone oil), the diluent white petrolatum, and the catalyst in the coating of step (5) is 120:600:0.3.

[0120] In Comparative Example 4, the content of the silicone oil compound (methyl silicone oil) is too low, resulting in a shortened service life of the coating layer.

[0121] Comparative Example 5

[0122] The present comparative example provides a high-efficiency release roller.

[0123] The high-efficiency release roller of the present comparative example is basically the same as that of Example 2, except that in the present comparative example, the mass ratio of the silicone oil compound (methyl silicone oil), the diluent white petrolatum, and the catalyst in the coating of step (5) is 120:600:0.3.

[0124] The high-efficiency release roller comprises a core body, a connecting layer, a protective sleeve with elasticity, and a coating layer. The core body and the protective sleeve are connected through the connecting layer, and the coating layer is formed on the outer surface of the protective sleeve.

[0125] The high-efficiency release roller of the present comparative example is prepared by basically the same method as that of Example 2, except that in the present comparative example, the mass ratio of the silicone oil compound (methyl silicone oil), the diluent white petrolatum, and the catalyst in the coating of step (5) is 120:600:0.3.

[0126] In Comparative Example 5, the content of the catalyst is too low, resulting in an extended time required for vulcanization.

[0127] The high-efficiency release rollers 10 in Examples 1 and 2 and Comparative Examples 1-5 are subjected to performance testing. The test results are shown in Table 1.

[0128] Table 1

[0129]

[0130] In summary, the high-efficiency release roller 10 of the present application can reduce the weight of the high-efficiency release roller 10 and avoid the problem of unclear small fonts by selecting a silica gel base material, and can reduce or avoid the risk of paper sticking by forming special lines on the inner surface of the forming mold to form the high-efficiency release roller 10 product surface to produce special lines, and reducing the contact area; selecting a low-temperature forming non-stick coating can select ordinary heating equipment in production, reduce energy consumption in the production process, and reduce production cost.

[0131] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0132] Each technical feature of the above-described embodiments can be combined arbitrarily, and in order to make the description simple, each technical feature in the above-described embodiments is not described in all possible combinations, however, as long as the combination of these technical features does not exist contradictory, it should be considered as the scope of the present application.

[0133] The above-described embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A high efficiency release roll characterized by, The high-efficiency release roller comprises a shaft core body, a connecting layer, a protective sleeve and a coating layer, the shaft core body and the protective sleeve are connected through the connecting layer, and the coating layer is formed on the outer surface of the protective sleeve.

2. The high efficiency release roll of claim 1, wherein, The protective sleeve is elastic. And / or, the protective sleeve is a silica gel sleeve.

3. The high efficiency release roll of claim 1, wherein, The outer surface of the protective sleeve has a plurality of patterns.

4. The high efficiency release roll of claim 3, wherein, The number of the patterns on the outer surface of the protective sleeve is multiple.

5. The high efficiency release roll of claim 4, wherein, Each of the patterns on the outer surface of the protective sleeve is not communicated.

6. The high efficiency release roll according to any one of claims 3 to 5, wherein The depth of the patterns on the protective sleeve is 0.01mm-0.1mm.

7. The high efficiency release roll according to any one of claims 1 to 5, wherein The thickness of the connecting layer of the protective sleeve is 0.01mm-0.1mm.

8. The high efficiency release roll according to any one of claims 1 to 5, wherein The thickness of the protective sleeve is 1mm-10mm.

9. The high efficiency release roll according to any one of claims 1 to 5, wherein The thickness of the coating layer is 4um-10um.

10. A label printer characterized by comprising: The high-efficiency release roller is used in a printer body.

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