Embossed gum dipping rope head and manufacturing method thereof

Abstract

The invention discloses an embossed gum dipping rope head and a manufacturing method thereof. The preparation method of the embossed and impregnated rope head comprises the following steps: molding the rope head to obtain a molded rope head; forming a gum dipping layer on the surface of the molded rope head to obtain a gum dipping rope head; and preset embossing is formed on the impregnated rope head through high-frequency wave treatment. According to the preparation method, the rope head is firstly molded, so that a more uniform and firmer-combined gum dipping layer can be formed in the subsequent gum dipping process; and then, the impregnated rope head is subjected to preset high-frequency wave treatment, and the embossed impregnated rope head which is stable in embossed pattern shape and good in effect can be obtained.

Description

Technical Field

[0001] The present application relates to the technical field of clothing accessories, and in particular to an embossed and dipped cord head and a manufacturing method thereof. Background Art

[0002] Rubber-coated rope ends are common accessories in clothing, and are often seen on hat strings of tops, waist strings of trousers, and as shoelaces. Currently, the practice of adding patterns to rubber-coated rope products is usually through spray painting or silk screen printing. However, the patterns formed by spray painting or silk screen printing are not good, and the original patterns are easily lost due to wear and tear. Summary of the invention

[0003] Based on this, it is necessary to provide an embossed rubber-impregnated rope head with a stable embossed pattern shape and good effect and a method for making the same.

[0004] A method for preparing an embossed and dipped rope head, comprising the following steps:

[0005] shaping the rope end to obtain a shaped rope end;

[0006] Forming a dipping layer on the surface of the shaped rope head to obtain a dipping rope head;

[0007] A preset embossing is formed on the dipped rope head by high-frequency wave treatment.

[0008] In some embodiments, the dipping layer includes a substrate coating and a surface coating located on a side of the substrate coating away from the shaping rope head;

[0009] The substrate coating comprises the following raw materials in parts by weight:

[0010] 80 to 90 parts of aqueous polyurethane dispersion; and

[0011] Curing agent I 2 to 5 parts;

[0012] The surface coating comprises the following raw materials in parts by weight:

[0013] 40 to 56 parts of waterborne polyurethane dispersion;

[0014] 0.5 to 4 parts of silicon dioxide; and

[0015] Curing agent II 0.5 parts to 1.5 parts.

[0016] In some embodiments, the step of forming the dipping layer includes:

[0017] Mixing the raw materials for preparing the substrate coating to form a substrate slurry, coating the substrate slurry on the surface of the shaped rope head, and curing the slurry to form a dipped rope head precursor having the substrate coating;

[0018] The raw materials for preparing the surface coating are mixed to form a surface slurry, and the surface slurry is coated on the surface of the dipped rope head precursor and solidified to form the dipped layer.

[0019] In some embodiments, the viscosity of the substrate slurry is 1200 mPa.s to 1800 mPa.s.

[0020] In some embodiments, the viscosity of the surface slurry is 200mPa.s~400mPa.s.

[0021] In some embodiments, before applying the surface slurry, a step of forming a colored coating on the side of the substrate coating away from the shaping rope head is also included; the colored coating includes the following preparation raw materials in parts by weight:

[0022] 70-85 parts of waterborne polyurethane dispersion;

[0023] 2 to 5 parts of curing agent III; and

[0024] 3 to 12 parts of color paste.

[0025] In some embodiments, the step of forming the colored coating comprises:

[0026] The raw materials for preparing the color coating are mixed to form a color slurry, and the color slurry is applied to the surface of the shaping rope head and solidified to form the color coating.

[0027] In some embodiments, the viscosity of the color slurry is 200mPa.s~400mPa.s.

[0028] In some embodiments, the high-frequency wave treatment is performed using a high-frequency indentation machine; and / or

[0029] The shaping is performed using an ultrasonic machine.

[0030] In a second aspect of the present application, there is provided an embossed and impregnated rope head prepared by the above method.

[0031] In the preparation method of the embossed dipped rope head of the present application, the rope head is first shaped to obtain a shaped rope head, which helps to form a more uniform and more firmly bonded dipped layer in the subsequent dip process. Then, a uniform and firm dipped layer is formed on the surface of the shaped rope head to obtain a dipped rope head. Finally, by subjecting the dipped rope head to a preset high-frequency wave treatment, an embossed dipped rope head with a stable embossed pattern shape and good effect can be obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0033] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0034] Figure 1 It is a schematic structural diagram of an embossed and dipped rope head in one embodiment of the present application.

[0035] Description of reference numerals:

[0036] 100, rope end; 110, impregnation layer; 111, base coating; 112, coloring coating; 113, surface coating. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0038] In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In this application, "at least one" means more than one, such as one, two and more than two. "Multiple" or "several" means at least two, such as two, three, etc.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0040] When a numerical range is disclosed herein, the above range is considered to be continuous and includes the minimum and maximum values ​​of the range, as well as every value between such minimum and maximum values. Further, when a range refers to an integer, every integer between the minimum and maximum values ​​of the range is included. In addition, when multiple ranges are provided to describe features or characteristics, the ranges can be combined. In other words, unless otherwise indicated, all ranges disclosed herein should be understood to include any and all subranges included therein.

[0041] Unless otherwise specified, all steps of the present application may be performed sequentially or randomly. For example, the method includes steps (a) and (b), which means that the method may include steps (a) and (b) performed sequentially, or may include steps (b) and (a) performed sequentially. For example, the method may also include step (c), which means that step (c) may be added to the method in any order. For example, the method may include steps (a), (b) and (c), or may include steps (a), (c) and (b), or may include steps (c), (a) and (b), etc.

[0042] In this application, "above" or "below" includes the number itself. For example, "1 below" includes 1.

[0043] The temperature parameters in this application, unless otherwise specified, are allowed to be either constant temperature treatment or to vary within a certain temperature range. It should be understood that the constant temperature treatment allows the temperature to fluctuate within the accuracy range controlled by the instrument. Fluctuations within the range of ±5°C, ±4°C, ±3°C, ±2°C, and ±1°C are allowed.

[0044] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0045] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0046] In this application, the viscosity test conditions are: the test temperature is 25°C, using a DNJ-79 rotary viscometer, measuring group number II, factor 100, and the rotation speed is set to 750 r / min.

[0047] Dipped rubber cords are common accessories in clothing, such as hat cords for tops, waist cords for trousers, and shoelaces. Currently, the method of adding patterns to dipped rubber cord products is usually spray painting or silk screen printing. However, the patterns formed by spray painting or silk screen printing are not good, and the original patterns are easily lost due to wear and tear, and are not durable.

[0048] Based on this, it is necessary to provide an embossed rubber-impregnated rope head with a stable embossed pattern shape and good effect and a method for making the same.

[0049] For example, see Figure 1 As shown, Figure 1 A schematic diagram of the structure of the embossed and dipped rope head provided in the embodiment of the present application. In order to more clearly illustrate the structure of the embossed and dipped rope head, the embossed and dipped rope head and its preparation method will be introduced below in conjunction with the accompanying drawings.

[0050] The preparation method of the embossed and dipped rope head comprises the following steps:

[0051] shaping the rope end to obtain a shaped rope end;

[0052] Forming a dipping layer 110 on the surface of the shaped rope head to obtain a dipping rope head;

[0053] A preset embossing is formed on the dipped rope head by high-frequency wave treatment.

[0054] In the preparation method of the embossed dipped rope head of the present application, the rope head is first shaped to form a shaped rope head, which helps to form a more uniform and more firmly bonded dipped layer 110 on the surface of the shaped rope head during the subsequent dip process. Then, a uniform and firm dipped layer 110 is formed on the surface of the shaped rope head to obtain a dipped rope head. Then, by performing high-frequency wave treatment on a preset position of the dipped rope head, an embossed dipped rope head with a stable embossed pattern shape and good effect can be obtained.

[0055] In some of the embodiments, the rope end is shaped by high-frequency vibration waves. Before shaping, the yarns of the rope end are loosely arranged and fluffy. When the dipping operation is performed in this state, the dipping slurry will have different penetration conditions on the surface of the rope end, resulting in uneven coating thickness of the cured dipping rope end. The present application utilizes the energy of high-frequency vibration waves to gradually tighten and fix the yarns of the rope end, achieve the shaping effect, make the surface of the rope end more uniform and smooth, and then form a uniform and firmly bonded dipping layer 110 during the dipping process, effectively avoiding the adverse effects of uneven coating on subsequent embossing treatment.

[0056] Optionally, an ultrasonic machine is used for the shaping operation. Optionally, the model of the ultrasonic machine is YBZ-SX15K-pro.

[0057] In some embodiments, the frequency of the ultrasonic machine shaping is 12k~18k. Optionally, the frequency of the ultrasonic machine is 12k, 13k, 14k, 15k, 16k, 17k, 18k or other parameters within the range of 12k~18k.

[0058] In some embodiments, the power of the ultrasonic machine for shaping is 2kW to 3kW. Optionally, the power of the ultrasonic machine can be 2kW, 2.2kW, 2.4kW, 2.6kW, 2.8kW, 3kW or other parameters within the range of 2kW to 3kW.

[0059] In some embodiments, the ultrasonic machine shaping time is 1s to 3s. Optionally, the ultrasonic machine shaping time is 1s, 1.5s, 2s, 2.5s, 3s or other parameters within the range of 1s to 3s.

[0060] In some of the embodiments, a high frequency wave treatment is performed using a high frequency wave indenter.

[0061] In some embodiments, the current of the high-frequency wave treatment of the high-frequency creasing machine is 23A-28A. Optionally, the current can be 23A, 24A, 25A, 26A, 27A, 28A or other parameters within the range of 23A-28A.

[0062] The power of the high-frequency wave processing of the high-frequency creasing machine is 4kW~6kW. Optionally, the power of the high-frequency wave processing can be 4kW, 4.5kW, 5kW, 5.5kW, 6kW or other parameters within the range of 4kW~6kW.

[0063] High-frequency wave treatment The time of high-frequency wave treatment is 2s~5s. Optionally, the time of high-frequency wave treatment can be 2s, 3s, 4s, 5s or other parameters within the range of 2s~5s.

[0064] In some embodiments, the dipping layer 110 includes a substrate coating 111 and a surface coating 113 located on a side of the substrate coating 111 away from the shaping rope head.

[0065] The substrate coating 111 includes the following raw materials in parts by weight:

[0066] 80 to 90 parts of aqueous polyurethane dispersion; and

[0067] Curing agent 1 2 parts to 5 parts.

[0068] Optionally, in the raw materials for preparing the substrate coating 111, the mass fraction of the aqueous polyurethane dispersion can be but is not limited to 80 parts, 81 parts, 82 parts, 83 parts, 84 parts, 85 parts, 86 parts, 87 parts, 88 parts, 89 parts, 90 parts or other fractions within the range of 80 parts to 90 parts.

[0069] In some embodiments, curing agent I includes one or more of an isocyanate curing agent and an aziridine curing agent.

[0070] In some embodiments, the aziridine curing agent is a multifunctional aziridine curing agent, and the main components of the multifunctional aziridine curing agent may include polyaziridine crosslinker SaC-100 (CAS No. 64265-57-2) and 1,1'-(1,3-phthaloyl)bis(2-methyl-aziridine) (CAS No. 7652-64-4) or other multifunctional aziridines.

[0071] Optionally, the mass fraction of the curing agent I in the raw materials for preparing the substrate coating 111 may be, but is not limited to, 2, 3, 4, 5 or other fractions within the range of 2 to 5. Keeping the mass fraction of the curing agent I within the above range helps to form a substrate coating 111 with a higher crosslinking density, and helps to form a more excellent internal embossed structure after embossing.

[0072] The surface coating 113 includes the following raw materials in parts by weight:

[0073] 40 to 56 parts of waterborne polyurethane dispersion;

[0074] 0.5 to 4 parts of silicon dioxide; and

[0075] Curing agent II 0.5 parts to 1.5 parts.

[0076] Optionally, in the preparation raw materials of the surface coating 113, the mass fraction of the aqueous polyurethane dispersion can be but is not limited to 40 parts, 41 parts, 42 parts, 43 parts, 44 parts, 45 parts, 46 parts, 47 parts, 48 ​​parts, 49 parts, 50 parts, 51 parts, 52 parts, 53 parts, 54 parts, 55 parts, 56 parts or other parts within the range of 40 parts to 56 parts.

[0077] Optionally, in the raw materials for preparing the surface coating 113, the mass fraction of silicon dioxide can be but is not limited to 0.5 parts, 1 parts, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts or other fractions within the range of 0.5 parts to 4 parts.

[0078] In some embodiments, curing agent II includes one or more of an isocyanate curing agent and an aziridine curing agent.

[0079] Optionally, the mass fraction of curing agent II in the raw materials for preparing the surface coating 113 may be, but is not limited to, 0.5, 1, 1.5, or other fractions within the range of 0.5 to 1.5. Keeping the fraction of curing agent II within the above range helps to form a surface coating 113 with a moderate crosslinking density, thereby improving the flexibility of the surface coating 113, making it less likely to crack during embossing or later use.

[0080] In some embodiments, the step of forming the adhesive layer 110 includes:

[0081] Mixing the raw materials for preparing the substrate coating 111 to form a substrate slurry, coating the substrate slurry on the surface of the shaped rope head, and curing the mixture to form a dipped rope head precursor having the substrate coating 111;

[0082] The raw materials for preparing the surface coating 113 are mixed to form a surface slurry, and the surface slurry is coated on the surface of the dipped rope head precursor and cured to form a dipped layer 110 .

[0083] In some embodiments, the viscosity of the substrate slurry is 1200mPa.s to 1800mPa.s. The viscosity of the substrate slurry can be 1200mPa.s, 1300mPa.s, 1400mPa.s, 1500mPa.s, 1600mPa.s, 1700mPa.s, 1800mPa.s or other parameters within the range of 1200mPa.s to 1800mPa.s. Keeping the viscosity of the substrate slurry within the above range helps to form a thicker substrate coating 111.

[0084] Optionally, the raw materials for preparing the substrate coating 111 further include 8 to 16 parts of water for adjusting the viscosity, in parts by mass. The parts by mass of water may be, but are not limited to, 8, 9, 10, 11, 12, 13, 14, 15, 16, or other parts within the range of 8 to 16.

[0085] In some embodiments, the viscosity of the surface slurry is 200mPa.s to 400mPa.s. The viscosity of the surface slurry can be 200mPa.s, 250mPa.s, 300mPa.s, 350mPa.s, 400mPa.s or other parameters within the range of 200mPa.s to 400mPa.s. Keeping the viscosity of the surface slurry within the above range helps to form a surface coating 113 with a moderate thickness.

[0086] Optionally, the raw materials for preparing the surface coating 113 further include 40 to 60 parts of water by weight. The weight of water may be, but is not limited to, 40, 45, 50, 55, 60, or other parts within the range of 40 to 60.

[0087] In some of the embodiments, before applying the surface slurry, a step of forming a colored coating 112 on the side of the substrate coating 111 away from the shaping rope head is also included.

[0088] The color coating 112 includes the following raw materials in parts by weight:

[0089] 70-85 parts of waterborne polyurethane dispersion;

[0090] 2 to 5 parts of curing agent III; and

[0091] 3 to 12 parts of color paste.

[0092] Optionally, in the raw materials for preparing the colored coating 112, the mass fraction of the aqueous polyurethane dispersion can be but is not limited to 70 parts, 71 parts, 72 parts, 73 parts, 74 parts, 75 parts, 76 parts, 77 parts, 78 parts, 79 parts, 80 parts, 81 parts, 82 parts, 83 parts, 84 parts, 85 parts or other parts within the range of 70 parts to 85 parts.

[0093] In some embodiments, curing agent III includes one or more of an isocyanate curing agent and an aziridine curing agent.

[0094] Optionally, in the raw materials for preparing the colored coating 112, the mass fraction of the curing agent III may be, but is not limited to, 2 parts, 3 parts, 4 parts, 5 parts or other fractions within a range of 2 parts to 5 parts.

[0095] Optionally, in the raw materials for preparing the colored coating 112, the mass fraction of the color paste can be but is not limited to 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts or other fractions within the range of 3 parts to 12 parts.

[0096] In some embodiments, the step of forming the colored coating 112 includes:

[0097] The raw materials for preparing the color coating 112 are mixed to form a color slurry, and the color slurry is applied to the surface of the shaped rope head and solidified to form the color coating 112.

[0098] In some embodiments, the viscosity of the color paste is 200mPa.s-800mPa.s. Optionally, the viscosity of the color paste can be but is not limited to 200mPa.s, 300mPa.s, 400mPa.s, 500mPa.s, 600mPa.s, 700mPa.s, 800mPa.s or other parameters within the range of 200mPa.s-800mPa.s.

[0099] In some embodiments, the raw materials for preparing the colored coating 112 further include 8 to 18 parts of water by weight. The weight of water may be, but is not limited to, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, or other parts within the range of 8 to 18.

[0100] In a second aspect of the present application, there is provided an embossed and impregnated rope head prepared by the above method.

[0101] The present application is further described in detail below in conjunction with specific embodiments.

[0102] In the following specific embodiments and comparative examples, the raw materials used, unless otherwise specified, are all commercially available products; the instruments used, unless otherwise specified, are all commercially available products; and the processes used, unless otherwise specified, are all routinely selected by those skilled in the art.

[0103] Example 1

[0104] This embodiment provides an embossed rubber-impregnated rope head.

[0105] The dipped rubber layer 110 of the embossed dipped rubber rope head of the present embodiment comprises a base coating 111 , a coloring coating 112 and a surface coating 113 .

[0106] The preparation steps of embossed dipped rope head are as follows:

[0107] (1) Preparation of shaping rope head

[0108] A 10mm wide polyester braided rope is used as the rope head, and the rope head is shaped by an ultrasonic machine to form a shaped rope head with a width of 8mm.

[0109] (2) Preparation of the dipping layer 110

[0110] The preparation steps of the substrate coating 111 are as follows: in terms of mass fractions, the raw materials for preparing the substrate coating 111 are 84.5 parts of aqueous polyurethane dispersion, 3 parts of aziridine curing agent, 12 parts of water and 0.5 parts of defoaming agent. The aqueous polyurethane dispersion is added to a feeding bucket, and water and aziridine curing agent are added under stirring. After uniform dispersion, the defoaming agent is added and stirred, and the mixture is allowed to stand for defoaming to obtain a substrate slurry with a viscosity of about 1500 mPa.s. The substrate slurry is applied to the surface of the shaped rope head, and cured at room temperature to form a dipped rope head precursor having the substrate coating 111.

[0111] The steps for preparing the colored coating 112 are as follows: in terms of mass fractions, the raw materials for preparing the colored coating 112 are 78 parts of aqueous polyurethane dispersion, 3 parts of aziridine curing agent, 12 parts of water, 3 parts of blue slurry and 4 parts of black slurry. The aqueous polyurethane dispersion is added to a feeding bucket, and water and color slurry are added under stirring. After uniform dispersion, the aziridine curing agent is added and stirred to obtain a color slurry with a viscosity of about 300 mPa.s. The color slurry is applied to the surface of the shaped rope head and cured at room temperature to form the colored coating 112.

[0112] The preparation steps of the surface coating 113 are as follows: in terms of mass fractions, the raw materials for preparing the surface coating 113 are 48 parts of aqueous polyurethane dispersion, 1 part of aziridine curing agent, 49 parts of water and 2 parts of silicon dioxide. The aqueous polyurethane dispersion is added to a feeding bucket, and water and silicon dioxide are added under stirring. After uniform dispersion, the aziridine curing agent is added and stirred to obtain a surface slurry with a viscosity of about 300mPa.s. The surface slurry is applied on the surface of the dipped rope head precursor having the color coating 112, and cured at room temperature to form a dipped layer 110 to obtain a dipped rope head. The aqueous polyurethane dispersion was purchased from Foshan Hesheng New Materials Co., Ltd., and the model number is HS069M matte aqueous polyurethane slurry; the aziridine curing agent was purchased from Foshan Hesheng New Materials Co., Ltd., and the model number is HS-011H.

[0113] (3) Forming preset embossing

[0114] The high-frequency wave treatment is carried out by a high-frequency creasing machine to form an embossing of a preset mold pattern on the dipped rubber rope head, and the rope head is naturally cooled to obtain an embossed dipped rubber rope head.

[0115] Example 2

[0116] This embodiment provides an embossed rubber-impregnated rope head.

[0117] The dipped layer 110 of the embossed dipped rope head of this embodiment comprises a base coating 111, a coloring coating 112 and a surface coating 113. The base coating 111 is made of the slurry of the surface coating 113 and the base coating 111.

[0118] The preparation steps of embossed dipped rope head are as follows:

[0119] (1) Preparation of shaping rope head

[0120] A 10mm wide polyester braided rope is used as the rope head, and the rope head is shaped by an ultrasonic machine to form a shaped rope head with a width of 8mm.

[0121] (2) Preparation of the dipping layer 110

[0122] The preparation steps of the substrate coating 111 are as follows: in terms of mass fractions, the raw materials for preparing the substrate coating 111 are 84.5 parts of aqueous polyurethane dispersion, 3 parts of aziridine curing agent, 12 parts of water and 0.5 parts of defoaming agent. The aqueous polyurethane dispersion is added to a feeding bucket, and water and aziridine curing agent are added under stirring. After uniform dispersion, the defoaming agent is added and stirred, and the mixture is allowed to stand for defoaming to obtain a substrate slurry with a viscosity of about 1500 mPa.s. The substrate slurry is applied to the surface of the shaped rope head, and cured at room temperature to form a dipped rope head precursor having the substrate coating 111.

[0123] The preparation steps of the color coating 112 are as follows: the raw materials for preparing the color coating 112 are 78 parts of aqueous polyurethane dispersion, 3 parts of aziridine curing agent, 12 parts of water and 7 parts of blue slurry by weight. The aqueous polyurethane dispersion is added to the feeding bucket, and water and color slurry are added under stirring. After uniform dispersion, the aziridine curing agent is added and stirred to obtain a color slurry with a viscosity of about 300mPa.s. The color slurry is applied to the surface of the shaped rope head and cured at room temperature to form the color coating 112.

[0124] The preparation steps of the surface coating 113 are as follows: in terms of mass fractions, the raw materials for preparing the surface coating 113 are 84.5 parts of aqueous polyurethane dispersion, 3 parts of aziridine curing agent, 12 parts of water and 0.5 parts of defoaming agent. The aqueous polyurethane dispersion is added to a feeding bucket, and water and aziridine curing agent are added under stirring. After uniform dispersion, the defoaming agent is added and stirred, and the mixture is allowed to stand for defoaming to obtain a surface slurry with a viscosity of about 1500 mPa.s. The surface slurry is applied to the surface of the dipped rope head precursor having the color coating 112, and cured at room temperature to form a dipped layer 110 to obtain a dipped rope head.

[0125] (3) Forming preset embossing

[0126] The high-frequency wave treatment is carried out by a high-frequency creasing machine to form an embossing of a preset mold pattern on the dipped rubber rope head, and the rope head is naturally cooled to obtain an embossed dipped rubber rope head.

[0127] Example 3

[0128] This embodiment provides an embossed rubber-impregnated rope head.

[0129] The dipped rubber layer 110 of the embossed dipped rubber rope head of this embodiment comprises a base coating 111, a coloring coating 112 and a surface coating 113. The slurry of the surface coating 113 and the base coating 111 uses the surface slurry of Embodiment 1.

[0130] The preparation steps of embossed dipped rope head are as follows:

[0131] (1) Preparation of shaping rope head

[0132] A 10mm wide polyester braided rope is used as the rope head, and the rope head is shaped by an ultrasonic machine to form a shaped rope head with a width of 8mm.

[0133] (2) Preparation of the dipping layer 110

[0134] The preparation steps of the substrate coating 111 are as follows: the raw materials for preparing the surface coating 113 are 48 parts of aqueous polyurethane dispersion, 1 part of aziridine curing agent, 49 parts of water and 2 parts of silicon dioxide, by mass. The aqueous polyurethane dispersion is added to the feeding bucket, and water and silicon dioxide are added under stirring. After uniform dispersion, the aziridine curing agent is added and stirred to obtain a surface slurry with a viscosity of about 300mPa.s. The substrate slurry is applied to the surface of the shaped rope head and cured at room temperature to form a dipped rope head precursor with the substrate coating 111.

[0135] The preparation steps of the color coating 112 are as follows: the raw materials for preparing the color coating 112 are 78 parts of aqueous polyurethane dispersion, 3 parts of aziridine curing agent, 12 parts of water and 7 parts of blue slurry by weight. The aqueous polyurethane dispersion is added to the feeding bucket, and water and color slurry are added under stirring. After uniform dispersion, the aziridine curing agent is added and stirred to obtain a color slurry with a viscosity of about 300mPa.s. The color slurry is applied to the surface of the shaped rope head and cured at room temperature to form the color coating 112.

[0136] The preparation steps of the surface coating 113 are as follows: in terms of mass fractions, the raw materials for preparing the surface coating 113 are 48 parts of aqueous polyurethane dispersion, 1 part of aziridine curing agent, 49 parts of water and 2 parts of silicon dioxide. The aqueous polyurethane dispersion is added to a feeding bucket, and water and silicon dioxide are added under stirring. After uniform dispersion, the aziridine curing agent is added and stirred to obtain a surface slurry with a viscosity of about 300 mPa.s. The surface slurry is applied to the surface of the dipped rope head precursor having the color coating 112, and cured at room temperature to form a dipped layer 110 to obtain a dipped rope head.

[0137] (3) Forming preset embossing

[0138] The high-frequency wave treatment is carried out by a high-frequency creasing machine to form an embossing of a preset mold pattern on the dipped rubber rope head, and the rope head is naturally cooled to obtain an embossed dipped rubber rope head.

[0139] test

[0140] The embossed effects of the embossed and dipped rope heads obtained in Examples 1 to 3 were observed using a magnifying glass. Among them, the embossed and dipped rope head of Example 1 had a more outstanding embossed texture performance, the embossed outer edge transition was smooth, and the inner side of the embossing was flat. Compared with Example 1, Example 2 had a rough feeling at the outer edge, and the embossed internal structure of Example 3 had a slight deformation.

[0141] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A method for preparing an embossed and impregnated rope head, characterized in that: The steps include: shaping the rope end to obtain a shaped rope end; Forming a dipping layer on the surface of the shaped rope head to obtain a dipping rope head; A preset embossing is formed on the dipped rubber rope head by high frequency wave treatment.

2. The method for preparing the embossed and dipped rope head according to claim 1, characterized in that: The dipping layer includes a substrate coating and a surface coating located on a side of the substrate coating away from the shaping rope head; The substrate coating comprises the following raw materials in parts by weight: 80 to 90 parts of aqueous polyurethane dispersion; and Curing agent I 2 to 5 parts; The surface coating comprises the following raw materials in parts by weight: 40 to 56 parts of waterborne polyurethane dispersion; 0.5 to 4 parts of silicon dioxide; as well as Curing agent II 0.5~1.5 parts.

3. The method for preparing the embossed and dipped rope head according to claim 2, characterized in that: The steps of forming the dipping layer include: Mixing the raw materials for preparing the substrate coating to form a substrate slurry, coating the substrate slurry on the surface of the shaped rope head, and curing the slurry to form a dipped rope head precursor having the substrate coating; The raw materials for preparing the surface coating are mixed to form a surface slurry, and the surface slurry is coated on the surface of the dipped rope head precursor and solidified to form the dipped layer.

4. The method for preparing the embossed and dipped rope head according to claim 3, characterized in that: The viscosity of the substrate slurry is 1200mPa.s~1800mPa.s.

5. The method for preparing the embossed and dipped rope head according to claim 3, characterized in that: The viscosity of the surface slurry is 200mPa.s~400mPa.s.

6. The method for preparing the embossed and dipped rope head according to any one of claims 2 to 5, characterized in that: Before applying the surface slurry, the method further includes forming a colored coating on the side of the substrate coating away from the shaping rope head; the colored coating includes the following raw materials in parts by weight: 70-85 parts of waterborne polyurethane dispersion; Curing agent III 2 to 5 parts; as well as 3 to 12 parts of color paste.

7. The method for preparing the embossed and impregnated rope head according to claim 6, characterized in that: The steps of forming the colored coating include: The raw materials for preparing the color coating are mixed to form a color slurry, and the color slurry is coated on the surface of the shaping rope head and solidified to form the color coating.

8. The method for preparing the embossed and dipped rope head according to claim 7, characterized in that: The viscosity of the color slurry is 200mPa.s~400mPa.s.

9. The method for preparing the embossed and dipped rope head according to any one of claims 1 to 5, characterized in that: Use a high frequency creasing machine to perform the high frequency wave treatment; and / or The shaping is performed using an ultrasonic machine.

10. An embossed rubber-impregnated rope head, characterized in that: The embossed and dipped rope head is prepared by the preparation method of any one of claims 1 to 9.

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