Flame-retardant medical wrist strap and preparation method thereof

Abstract

The invention discloses a flame-retardant medical wrist strap and a preparation method thereof, and is characterized in that the flame-retardant medical wrist strap comprises a wrist strap body and a printing body printed on the wrist strap body, and the printing body is ink; the wrist strap body comprises the following components in percentage by weight: 25 to 30 percent of flame retardant, 50 to 55 percent of EVA (Ethylene Vinyl Acetate), 8 to 10 percent of LLDPE (Linear Low Density Polyethylene), 3 to 5 percent of LDPE (Low Density Polyethylene) and 4 to 5 percent of color master batch; the ink comprises a mixture of 30%-35% of modified polyester acrylic resin, 25%-30% of propoxylated glycerol triacrylate, 18%-20% of bis (trimethylolpropane) tetraacrylate, 12%-15% of ethoxylated trimethylolpropane triacrylate, 1%-5% of pigment blue and 1%-5% of a photoinitiator. Flame retardance of the medical wrist strap is achieved, and the safety of transportation and storage is effectively guaranteed.

Description

Technical Field

[0001] The invention relates to a wristband, in particular to a flame retardant medical wristband and a preparation method thereof. Background Art

[0002] Medical wristbands are common medical devices used to identify patients' identities and related information. They are mainly used for identity recognition, medical records, health monitoring and postoperative marking. They are an indispensable and important auxiliary tool in the medical environment that can ensure the accuracy of patient identity and the integrity of medical records.

[0003] However, in the prior art, if it encounters some special circumstances, such as sparks, during transportation, storage or other situations, it will cause combustion, which poses a great safety hazard. Therefore, developing a flame-retardant medical wristband is a direction that those skilled in the art need to work hard on. Summary of the invention

[0004] The purpose of the present invention is to provide a flame retardant medical wristband and a preparation method thereof. By using the formula and process, the flame retardant effect of the medical wristband is effectively achieved.

[0005] To achieve the above object, the technical solution adopted by the present invention is: a flame retardant medical wristband, comprising a wristband body and a printed body printed on the wristband body, wherein the printed body is ink;

[0006] The wristband body includes a mixture of flame retardant, EVA, LLDPE, LDPE and masterbatch, and the weight proportions of each component are as follows:

[0007]

[0008] The ink comprises a mixture of modified polyester acrylic resin, propoxylated glycerol triacrylate, ditrimethylolpropane tetraacrylate, ethoxylated trimethylolpropane triacrylate, pigment blue and a photoinitiator, and the weight proportions of the components are as follows:

[0009]

[0010]

[0011] In the above technical solution, the flame retardant is EVA flame retardant masterbatch flame retardant, EVA is Hanwha EVA2518, the LLDPE is Zhenhai LLDPE7042, and the LDPE is Yangzi BASF LDPE2420.

[0012] The present invention also provides a method for preparing the flame retardant medical wristband, the steps of which are:

[0013] ① Preparation of wristband body;

[0014] ② Preparation of ink;

[0015] ③ Printing the ink prepared in step ② on the wristband body to achieve printing of the printed body;

[0016] The step ① includes the following steps:

[0017] A1. Mix the flame retardant, EVA, LLDPE, LDPE and masterbatch in a predetermined proportion and stir evenly for 30 to 40 minutes;

[0018] A2, sucking the mixed materials in step A1 into a casting machine for casting, the casting temperature is 210°C to 220°C, and casting to form a wristband body in the shape of a film;

[0019] The step ② includes the following steps:

[0020] B1. Mix and evenly stir the modified polyester acrylic resin, propoxylated glycerol triacrylate, ditrimethylolpropane tetraacrylate, ethoxylated trimethylolpropane triacrylate, pigment blue and photoinitiator for 15 to 25 minutes;

[0021] The step ③ includes the following steps:

[0022] C1. Add the ink prepared in step B1 into the ink fountain of the printing press, then feed the wristband body prepared in step A2 into the printing press, and print the ink in step B1 onto the wristband body to achieve printing of the printed body;

[0023] Wherein, in the step C1, after the ink is printed on the wristband body, the ink is dried by UV, and the UV drying intensity is 75% to 80%;

[0024] The unwinding tension of the printed wristband body is 10mN / m, the rewinding tension is 3mN / m, and the speed is 45r / min.

[0025] In the above technical solution, after the wristband body in the shape of a film is formed by tape casting in step A2, ink printing and UV drying are directly performed to obtain a finished wristband.

[0026] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0027] 1. The wristband body made of flame retardant, EVA, LLDPE and LDPE in the present invention has a strong flame retardant effect, and then the ink is printed on the wristband body, and UV drying is adopted to solidify it on the wristband body, so that it has a strong flame retardant effect and improves the safety of transportation and storage. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with embodiments:

[0029] Embodiment 1: A flame retardant medical wristband, comprising a wristband body and a printed body printed on the wristband body, wherein the printed body is ink;

[0030] The wristband body includes a mixture of flame retardant, EVA, LLDPE, LDPE and masterbatch, and the weight proportions of each component are as follows:

[0031]

[0032] In this embodiment, the weight proportions of each component are: flame retardant 28%, EVA (ethylene-vinyl acetate copolymer) 53%, LLDPE (linear low-density polyethylene) 10%, LDPE (low-density polyethylene) 5%, masterbatch 4%, and the color of the wristband can be made according to the needs, and the corresponding masterbatch can be selected, which can achieve V-0 flame retardant grade.

[0033] The ink comprises a mixture of modified polyester acrylic resin, propoxylated glycerol triacrylate, ditrimethylolpropane tetraacrylate, ethoxylated trimethylolpropane triacrylate, pigment blue and a photoinitiator, and the weight proportions of the components are as follows:

[0034]

[0035] In this embodiment, the weight proportion of each component is: modified polyester acrylic resin 33%, propoxylated glycerol triacrylate 29%, ditrimethylolpropane tetraacrylate 18%, ethoxylated trimethylolpropane triacrylate 14%, pigment blue 4%, photoinitiator 2%. Of course, the proportion of each component can be a little less, and the rest is water. The modified polyester acrylic resin can improve the curing effect of the pigment, the propoxylated glycerol triacrylate can improve the curing speed and curing hardness of the pigment, the ditrimethylolpropane tetraacrylate can improve the wear resistance, solubility resistance and corrosion resistance of the pigment, and the ethoxylated trimethylolpropane triacrylate can improve the viscosity and activity of the pigment.

[0036] The flame retardant is EVA flame retardant masterbatch flame retardant, EVA is Hanwha EVA2518, the LLDPE is Zhenhai LLDPE7042, and the LDPE is Yangzi BASF LDPE2420.

[0037] The present invention also provides a method for preparing the flame retardant medical wristband, the steps of which are:

[0038] ① Preparation of wristband body;

[0039] ② Preparation of ink;

[0040] ③ Printing the ink prepared in step ② on the wristband body to achieve printing of the printed body;

[0041] The step ① includes the following steps:

[0042] A1. Mix the flame retardant, EVA, LLDPE, LDPE and masterbatch in a predetermined ratio and stir evenly. The stirring time is 30 minutes to make the materials evenly mixed, which is beneficial to the dissolution of the material during the casting process in step A2.

[0043] A2, sucking the mixed materials in step A1 into a casting machine for casting, the casting temperature is 210°C to 220°C, and casting to form a wristband body in the shape of a film;

[0044] The step ② includes the following steps:

[0045] B 1. Mix and evenly stir the modified polyester acrylic resin, propoxylated glycerol triacrylate, ditrimethylolpropane tetraacrylate, ethoxylated trimethylolpropane triacrylate, pigment blue and photoinitiator for 15 to 25 minutes to make them evenly mixed;

[0046] The step ③ includes the following steps:

[0047] C 1. Add the ink prepared in step B1 into the ink fountain of the printing press, then feed the wristband body prepared in step A2 into the printing press, and print the ink in step B1 onto the wristband body to achieve printing of the printed body;

[0048] Among them, in the step C1, after the ink is printed on the wristband body, the ink is dried by UV, and the UV drying intensity is 75% to 80%; wherein, the total power intensity of the UV drying system is 100%, and the printed body is plastic and has elasticity. If the drying power intensity exceeds 80%, the printed body will deform and shrink. Therefore, the UV drying intensity is 75% to 80%.

[0049] The printing unwinding tension of the wristband body is 10mN / m, the winding tension is 3mN / m, and the speed is 45r / min. Due to the elasticity of the wristband, when the printing unwinding tension is greater than 10mN / m, the winding tension is greater than 3mN / m, and the speed is greater than 45r / min, the ink drying effect may be weakened, and the drying length needs to be extended to ensure the drying effect.

[0050] After the wristband body in the shape of a film is formed by tape casting in step A2, ink printing and UV drying are directly performed to obtain a finished wristband.

[0051] Furthermore, in the present invention, since the wristband body contains 25% to 30% flame retardant, the wristband body will have a strong flame retardant effect. Moreover, after the wristband body is cast, the wristband body still has a certain high temperature. Therefore, the ink can be directly printed and dried after printing. The flame retardant effect of the wristband body will also act on the ink, thereby making the ink also have strong flame retardant ability and flame retardant effect.

[0052] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship shown, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, or an integral one; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, for example, the two can form a mechanical abutment or abutment connection through abutment, contact, etc., the two can also be directly hung or hung through an intermediate medium, etc., or it can be the internal connection of the two elements or the interaction relationship between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A flame retardant medical wristband, characterized in that: It includes a wristband body and a printed body printed on the wristband body, wherein the printed body is ink; The wristband body includes a mixture of flame retardant, EVA, LLDPE, LDPE and masterbatch, and the weight proportions of each component are as follows: The ink comprises a mixture of modified polyester acrylic resin, propoxylated glycerol triacrylate, ditrimethylolpropane tetraacrylate, ethoxylated trimethylolpropane triacrylate, pigment blue and a photoinitiator, and the weight proportions of the components are as follows:

2. The flame retardant medical wristband according to claim 1, characterized in that: The flame retardant is EVA flame retardant masterbatch flame retardant, EVA is Hanwha EVA2518, the LLDPE is Zhenhai LLDPE7042, and the LDPE is Yangzi BASF LDPE2420.

3. A method for making the flame-retardant medical wristband according to any one of claims 1 to 2, comprising the following steps: ① Preparation of wristband body; ② Preparation of ink; ③ Printing the ink prepared in step ② on the wristband body to achieve printing of the printed body; The step ① includes the following steps: A1. Mix the flame retardant, EVA, LLDPE, LDPE and masterbatch in a predetermined proportion and stir evenly for 30 to 40 minutes; A2, sucking the mixed materials in step A1 into a casting machine for casting, the casting temperature is 210°C to 220°C, and casting to form a wristband body in the shape of a film; The step ② includes the following steps: B 1. Mix and evenly stir the modified polyester acrylic resin, propoxylated glycerol triacrylate, ditrimethylolpropane tetraacrylate, ethoxylated trimethylolpropane triacrylate, pigment blue and photoinitiator for 15 to 25 minutes; The step ③ includes the following steps: C 1. Add the ink prepared in step B1 into the ink fountain of the printing press, then feed the wristband body prepared in step A2 into the printing press, and print the ink in step B1 onto the wristband body to achieve printing of the printed body; in, In the step C1, after the ink is printed on the wristband body, the ink is dried using UV, and the UV drying intensity is 75% to 80%; The unwinding tension of the printed wristband body is 10mN / m, the rewinding tension is 3mN / m, and the speed is 45r / min.

4. The method for preparing the flame retardant medical wristband according to claim 3, characterized in that: After the wristband body in the shape of a film is formed by tape casting in step A2, ink printing and UV drying are directly performed to obtain a finished wristband.

Images