A medical multi-layer wristband and preparation method thereof

Abstract

The present invention relates to the technical field of medical wristbands, and specifically to a medical multilayer wristband and a preparation method thereof. The organic lanthanum enhancer prepared by the present invention forms a stronger bond between the ink and the substrate surface through the action of functional groups such as lanthanum complexes, trimethylol and propyl ether groups, thereby improving the adhesion of the ink; the trimethylol group helps the interaction between the enhancer and the substrate surface, enhancing the adhesion, and the propyl ether group provides a certain solubility and dispersibility, which helps to evenly disperse the enhancer in the ink, thereby improving the wettability and adhesion of the ink; the present invention laminates the thermal synthetic paper with the EVA substrate, prints a layer of transparent UV primer on the surface of the material, and after drying, partially prints colored UV ink, and finally prints a layer of transparent UV varnish, and after die-cutting, a medical multilayer wristband is made; the medical multilayer wristband prepared by the present invention has good ink adhesion, good printing effect, and excellent properties such as resistance to disposable disinfectants, water resistance, and alcohol resistance.

Description

Technical Field

[0001] The invention relates to the technical field of medical wristbands, in particular to a medical multi-layer wristband and a preparation method thereof. Background Art

[0002] When the wristband is used in the hospital, text, numbers, one-dimensional codes, and two-dimensional codes are printed on the surface of the wristband through thermal printing, and the inpatients wear it. Usually one wristband is worn during one hospitalization period, which ranges from 3 days to 1 month. During the hospitalization period, the wristband will rub against the clothes, and the patient needs to take a shower and wash hands normally, and will be exposed to solutions such as disposable disinfectant, alcohol, iodine, and BB oil. The wristband worn must resist these adverse factors to ensure that the printed information is clear and durable, and cannot affect reading and barcode scanning.

[0003] Chinese patent CN113647724B: discloses a medical wristband, wherein a fixed base is fixed between wristband 1 and wristband 2, and the fixed base includes a base body fixed with wristband 1 and wristband 2, and the base body is provided with a limit groove 1 and a limit groove 2 from top to bottom, respectively, and the side of the base body is provided with a slot connected with the limit groove 1 and the limit groove 2, and a display structure is detachably mounted on the base body, and an adjustment structure is arranged on the other side of the fixing frame. The present invention also includes a preparation method of wristband 1, including S1: raw material pretreatment; S2: preparation of mixed material 1; S3: preparation of mixed material 2; S4: mixing of mixed material 1 and mixed material 2; S5: obtaining wristband 1. The display structure and the fixed base of the medical wristband and the preparation method of wristband 1 are detachably arranged, which is convenient for disassembly and use; the preparation method of medical wristband 1 mixes different materials at different temperatures, so that the materials are mixed more evenly, and the quality and strength of the prepared wristband 1 are better.

[0004] Chinese patent CN108274845B: discloses a medical wristband for infants and a preparation method, including a wristband body, the wristband body including a first wristband and a second wristband symmetrically arranged along the length direction thereof, the first wristband and the second wristband are connected by a first tear line arranged along the width direction of the first wristband, the first wristband and the second wristband are also connected to a safety component for preventing the first tear line from being torn apart on the surface away from the infant, and the free end of the second wristband is provided with a sticking strip pasted to the surface of the first wristband away from the infant's wrist on the surface of the side close to the infant's wrist. After the wristband body is bound to the infant's wrist, when the wristband body needs to be removed later, the medical staff only needs to open the protection of the first tear line by the safety component and tear the first tear line to complete the separation of the wristband body from the infant's wrist, and the whole process is not easy to damage the fragile skin of the infant.

[0005] Chinese Patent CN103687504B: Provided is a wristband and a method for manufacturing the wristband, which has improved toughness, water resistance, and oil or fat resistance while maintaining softness, and cannot be bent or curved, and has identification information that can be maintained for a period of time even for long-term use to allow readability of bar codes and other content. The focus is on the application of a laminated material on a surface substrate, the laminated material includes a water-resistant and oil-resistant material and a flexible material, the surface substrate is most susceptible to external factors other than the material constituting the wristband, and the focus is also on the application of a lining material, which is arranged on the lower side of the surface substrate and has one of tear resistance and stretch resistance. It provides: a surface substrate, which is configured by a laminated material, the laminated material including a first water-resistant and oil-resistant material, a flexible material and a second water-resistant and oil-resistant material laminated; a lining material, which is laminated on the lower side of the surface substrate and has one of tear resistance and stretch resistance; and an embossed material, which is laminated on the lower side of the lining material and has an embossed portion for contacting the portion to be connected.

[0006] The medical multi-layer wristbands prepared by the above patents and prior art have the following defects: poor ink adhesion, occasional ink loss; unsatisfactory printing effect, shallow thermal printing, affecting reading and barcode scanning; poor resistance to disposable disinfectants, water, alcohol, etc. Summary of the invention

[0007] In order to solve the above problems, the present invention provides a medical multi-layer wristband and a preparation method thereof, and the operation steps are as follows:

[0008] The thermal synthetic paper is laminated with the EVA substrate, and a layer of transparent UV primer is printed on the surface of the material. After drying, colored UV ink is partially printed, and finally a layer of transparent UV varnish is printed. After die-cutting, a medical multi-layer wristband is made.

[0009] In the above method, the printing adopts the relief printing process, the printing equipment is a satellite type full rotary printing machine, and a high pressure mercury lamp is used as a UV curing unit.

[0010] In the above method, the preparation method of the transparent UV primer is:

[0011] According to weight, 30-50 parts of aliphatic modified epoxy acrylic resin, 20-30 parts of 1,6-hexanediol diacrylate, 1-5 parts of initiator, 1-3 parts of filler, 0.5-2 parts of accelerator, 0.1-0.5 parts of defoamer, and 0.1-0.5 parts of stabilizer are weighed in a reaction kettle, heated to 40-50°C, stirred for 20-40 minutes, and a transparent UV primer is obtained.

[0012] In the above method, the preparation method of the transparent UV varnish is:

[0013] According to weight, 30-50 parts of organosilicon-modified epoxy acrylic resin, 20-30 parts of tripropylene glycol diacrylate, 0.008-0.03 parts of organolanthanum synergist, 1-5 parts of initiator, 1-3 parts of filler, 0.5-2 parts of accelerator, 0.1-0.5 parts of defoamer and 0.1-0.5 parts of stabilizer are weighed in a reaction kettle, the temperature is raised to 40-50°C, and stirred for 20-40 minutes to obtain a transparent UV varnish.

[0014] In the above method, the preparation method of the colored UV ink is:

[0015] According to weight, 30-50 parts of epoxy acrylic resin, 20-30 parts of trimethylolpropane triacrylate, 0.03-0.2 parts of organic lanthanum synergist, 1-5 parts of initiator, 1-3 parts of filler, 0.5-2 parts of accelerator, 0.1-0.5 parts of defoamer, 0.1-0.5 parts of stabilizer and 0.1-0.5 parts of pigment are weighed into a reaction kettle, heated to 40-50° C., stirred for 20-40 minutes, and colored UV ink is obtained.

[0016] Furthermore, the initiator is 2,4,6-trimethylbenzoyldiphenylphosphine oxide, benzoin dimethyl ether, 1-hydroxy-cyclohexyl-phenyl ketone, and 4-chlorobenzophenone.

[0017] Furthermore, the filler is calcium carbonate, barium sulfate, aluminum hydroxide, silicon dioxide, talc and kaolin.

[0018] Furthermore, the accelerator is dicyclopentadienyl acrylate, 4-tert-butylcyclohexyl acrylate, or trimethylolpropane triacrylate.

[0019] Furthermore, the defoaming agent is a polyether defoaming agent, a silicone oil defoaming agent, or a polyether-modified silicone defoaming agent.

[0020] Furthermore, the pigment is titanium white, zinc white, benzidine yellow, azo lake red, phthalocyanine blue, sun-fast yellow, permanent orange, golden red, permanent yellow, and sun-fast brilliant red.

[0021] Furthermore, the preparation method of the organic lanthanum synergist is:

[0022] B1: Add 1-4 parts of lanthanum nitrate, 3-7 parts of 4-aminopyridine-2,6-dicarboxylic acid, and 220-300 parts of ethanol into a stirring kettle according to their weight ratio, and stir at 27-35° C. for 20-60 minutes;

[0023] B2: Add 12-24 parts of tris(hydroxymethyl)aminomethane, 30-60 parts of ethylene glycol diglycidyl ether and 1-4 parts of sodium ethoxide into the stirred kettle, stir at 40-50° C. for 50-120 minutes; remove ethanol by vacuum distillation to obtain an organic lanthanum synergist.

[0024] Reaction mechanism:

[0025] 1. Lanthanum nitrate and 4-aminopyridine-2,6-dicarboxylic acid generate 4-aminopyridine-2,6-dicarboxylate lanthanum complex;

[0026] 2. The lanthanum complex of 4-aminopyridine-2,6-dicarboxylate undergoes an amino-epoxy ring-opening reaction with ethylene glycol diglycidyl ether; tris(hydroxymethyl)aminomethane and ethylene glycol diglycidyl ether also undergo an amino-epoxy ring-opening reaction, and the obtained organic lanthanum enhancer contains the tris(hydroxymethyl) and propyl ether functional groups of the lanthanum complex, which can improve the adhesion of the ink. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Diagram of the structure of a medical multi-layer wristband.

[0028] Technical effects:

[0029] The present invention discloses a medical multi-layer wristband and a preparation method thereof. Compared with the prior art, the present invention has the following significant effects:

[0030] 1. The organic lanthanum enhancer prepared by the present invention forms a stronger bond between the ink and the substrate surface through the action of functional groups such as lanthanum complex, trimethylol and propyl ether groups, thereby improving the adhesion of the ink; the trimethylol group helps the interaction between the enhancer and the substrate surface to enhance the adhesion, and the propyl ether group provides certain solubility and dispersibility, which helps to evenly disperse the enhancer in the ink, thereby improving the wettability and adhesion of the ink;

[0031] 1. The medical multi-layer wristband prepared by the present invention has good ink adhesion and no ink loss phenomenon;

[0032] 2. The medical multi-layer wristband prepared by the present invention has good printing effect, clear thermal printing handwriting, and does not affect reading and barcode scanning;

[0033] 3. The medical multi-layer wristband prepared by the present invention has excellent properties such as resistance to disposable disinfectant, water resistance, and alcohol resistance. DETAILED DESCRIPTION

[0034] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0035] Example 1

[0036] A medical multi-layer wristband and a preparation method thereof, wherein the operation steps are as follows:

[0037] The thermal synthetic paper is laminated with the EVA substrate, and a layer of transparent UV primer is printed on the surface of the material. After drying, colored UV ink is partially printed, and finally a layer of transparent UV varnish is printed. After die-cutting, a medical multi-layer wristband is made.

[0038] The printing adopts a relief printing process, the printing equipment is a satellite type full-rotary printing machine, and a high-pressure mercury lamp is used as a UV curing unit.

[0039] The preparation method of the transparent UV primer is as follows:

[0040] Weigh 30 g of aliphatic modified epoxy acrylic resin, 20 g of 1,6-hexanediol diacrylate, 1 g of initiator, 1 g of filler, 0.5 g of accelerator, 0.1 g of defoamer, and 0.1 g of stabilizer into a reactor, heat to 40° C., and stir for 20 min to obtain a transparent UV primer.

[0041] The preparation method of the transparent UV varnish is:

[0042] Weigh 30 g of silicone-modified epoxy acrylic resin, 20 g of tripropylene glycol diacrylate, 0.008 g of organic lanthanum enhancer, 1 g of initiator, 1 g of filler, 0.5 g of accelerator, 0.1 g of defoamer, and 0.1 g of stabilizer in a reactor, heat to 40° C., and stir for 20 min to obtain a transparent UV varnish.

[0043] The preparation method of the colored UV ink is:

[0044] Weigh 30 g of epoxy acrylic resin, 20 g of trimethylolpropane triacrylate, 0.03 g of organic lanthanum synergist, 1 g of initiator, 1 g of filler, 0.5 g of accelerator, 0.1 g of defoamer, 0.1 g of stabilizer, and 0.1 g of pigment in a reactor, heat to 40° C., and stir for 20 min to obtain colored UV ink.

[0045] The initiator is 2,4,6-trimethylbenzoyldiphenylphosphine oxide.

[0046] The filler is calcium carbonate.

[0047] The accelerator is dicyclopentadienyl acrylate.

[0048] The defoamer is a polyether defoamer.

[0049] The pigment is titanium white.

[0050] The preparation method of the organic lanthanum synergist is:

[0051] B1: Add 1 g of lanthanum nitrate, 3 g of 4-aminopyridine-2,6-dicarboxylic acid, and 220 g of ethanol into a stirred tank and stir at 27°C for 20 minutes;

[0052] B2: Add 12 g of tris(hydroxymethyl)aminomethane, 30 g of ethylene glycol diglycidyl ether and 1 g of sodium ethoxide into the stirred kettle, stir at 40° C. for 50 minutes, and remove ethanol by vacuum distillation to obtain an organic lanthanum synergist.

[0053] Example 2

[0054] A medical multi-layer wristband and a preparation method thereof, wherein the operation steps are as follows:

[0055] The thermal synthetic paper is laminated with the EVA substrate, and a layer of transparent UV primer is printed on the surface of the material. After drying, colored UV ink is partially printed, and finally a layer of transparent UV varnish is printed. After die-cutting, a medical multi-layer wristband is made.

[0056] The printing adopts a relief printing process, the printing equipment is a satellite type full-rotary printing machine, and a high-pressure mercury lamp is used as a UV curing unit.

[0057] The preparation method of the transparent UV primer is as follows:

[0058] Weigh 35 g of aliphatic modified epoxy acrylic resin, 23 g of 1,6-hexanediol diacrylate, 2 g of initiator, 2 g of filler, 1 g of accelerator, 0.2 g of defoamer, and 0.2 g of stabilizer into a reaction kettle, heat to 45° C., and stir for 25 min to obtain a transparent UV primer.

[0059] The preparation method of the transparent UV varnish is:

[0060] Weigh 35 g of silicone-modified epoxy acrylic resin, 23 g of tripropylene glycol diacrylate, 0.01 g of organic lanthanum enhancer, 2 g of initiator, 2 g of filler, 1 g of accelerator, 0.2 g of defoamer, and 0.2 g of stabilizer in a reactor, heat to 45° C., and stir for 25 min to obtain a transparent UV varnish.

[0061] The preparation method of the colored UV ink is:

[0062] Weigh 35 g of epoxy acrylic resin, 23 g of trimethylolpropane triacrylate, 0.1 g of organic lanthanum synergist, 2 g of initiator, 2 g of filler, 1 g of accelerator, 0.2 g of defoamer, 0.2 g of stabilizer, and 0.2 g of pigment into a reaction kettle, heat to 45° C., and stir for 25 min to obtain colored UV ink.

[0063] The initiator is benzoin dimethyl ether.

[0064] The filler is barium sulfate.

[0065] The accelerator is 4-tert-butyl cyclohexyl acrylate.

[0066] The defoamer is a silicone oil type defoamer.

[0067] The pigment is benzidine yellow.

[0068] The preparation method of the organic lanthanum synergist is:

[0069] B1: Add 2 g lanthanum nitrate, 4 g 4-aminopyridine-2,6-dicarboxylic acid, and 240 g ethanol into a stirred tank and stir at 30°C for 30 minutes;

[0070] B2: Add 16 g of tris(hydroxymethyl)aminomethane, 40 g of ethylene glycol diglycidyl ether and 2 g of sodium ethoxide into the stirred kettle, stir at 45° C. for 70 minutes, and remove ethanol by vacuum distillation to obtain an organic lanthanum synergist.

[0071] Example 3

[0072] A medical multi-layer wristband and a preparation method thereof, wherein the operation steps are as follows:

[0073] The thermal synthetic paper is laminated with the EVA substrate, and a layer of transparent UV primer is printed on the surface of the material. After drying, colored UV ink is partially printed, and finally a layer of transparent UV varnish is printed. After die-cutting, a medical multi-layer wristband is made.

[0074] The printing adopts a relief printing process, the printing equipment is a satellite type full-rotary printing machine, and a high-pressure mercury lamp is used as a UV curing unit.

[0075] The preparation method of the transparent UV primer is as follows:

[0076] Weigh 45 g of aliphatic modified epoxy acrylic resin, 28 g of 1,6-hexanediol diacrylate, 4 g of initiator, 2 g of filler, 1.5 g of accelerator, 0.4 g of defoamer, and 0.4 g of stabilizer into a reaction kettle, heat to 45° C., and stir for 35 min to obtain a transparent UV primer.

[0077] The preparation method of the transparent UV varnish is:

[0078] Weigh 45 g of silicone-modified epoxy acrylic resin, 28 g of tripropylene glycol diacrylate, 0.02 g of organic lanthanum enhancer, 4 g of initiator, 2 g of filler, 1.5 g of accelerator, 0.4 g of defoamer and 0.4 g of stabilizer into a reactor, heat to 45° C. and stir for 35 min to obtain a transparent UV varnish.

[0079] The preparation method of the colored UV ink is:

[0080] Weigh 45 g of epoxy acrylic resin, 28 g of trimethylolpropane triacrylate, 0.15 g of organic lanthanum synergist, 4 g of initiator, 2 g of filler, 1.5 g of accelerator, 0.4 g of defoamer, 0.4 g of stabilizer, and 0.4 g of pigment into a reaction kettle, heat to 45° C., and stir for 35 min to obtain colored UV ink.

[0081] The initiator is 1-hydroxy-cyclohexyl-phenyl ketone.

[0082] The filler is silicon dioxide.

[0083] The accelerator is 4-tert-butyl cyclohexyl acrylate.

[0084] The defoamer is a silicone oil type defoamer.

[0085] The pigment is phthalocyanine blue.

[0086] The preparation method of the organic lanthanum synergist is:

[0087] B1: Add 3 g lanthanum nitrate, 6 g 4-aminopyridine-2,6-dicarboxylic acid, and 280 g ethanol into a stirred tank and stir at 32°C for 50 minutes;

[0088] B2: Add 20 g of tris(hydroxymethyl)aminomethane, 50 g of ethylene glycol diglycidyl ether and 3 g of sodium ethoxide into the stirred kettle, stir at 45° C. for 100 minutes, and remove ethanol by vacuum distillation to obtain an organic lanthanum synergist.

[0089] Example 4

[0090] A medical multi-layer wristband and a preparation method thereof, wherein the operation steps are as follows:

[0091] The thermal synthetic paper is laminated with the EVA substrate, and a layer of transparent UV primer is printed on the surface of the material. After drying, colored UV ink is partially printed, and finally a layer of transparent UV varnish is printed. After die-cutting, a medical multi-layer wristband is made.

[0092] The printing adopts a relief printing process, the printing equipment is a satellite type full-rotary printing machine, and a high-pressure mercury lamp is used as a UV curing unit.

[0093] The preparation method of the transparent UV primer is as follows:

[0094] Weigh 50g of aliphatic modified epoxy acrylic resin, 30g of 1,6-hexanediol diacrylate, 5g of initiator, 3g of filler, 2g of accelerator, 0.5g of defoamer, and 0.5g of stabilizer in a reaction kettle, heat to 50°C, and stir for 40min to obtain a transparent UV primer.

[0095] The preparation method of the transparent UV varnish is:

[0096] Weigh 50 g of silicone-modified epoxy acrylic resin, 30 g of tripropylene glycol diacrylate, 0.03 g of organic lanthanum enhancer, 5 g of initiator, 3 g of filler, 2 g of accelerator, 0.5 g of defoamer and 0.5 g of stabilizer into a reactor, heat to 50° C. and stir for 40 min to obtain a transparent UV varnish.

[0097] The preparation method of the colored UV ink is:

[0098] Weigh 50 g of epoxy acrylic resin, 30 g of trimethylolpropane triacrylate, 0.2 g of organic lanthanum synergist, 5 g of initiator, 3 g of filler, 2 g of accelerator, 0.5 g of defoamer, 0.5 g of stabilizer, and 0.5 g of pigment into a reaction kettle, heat to 50° C., and stir for 40 min to obtain colored UV ink.

[0099] The initiator is 4-chlorobenzophenone.

[0100] The filler is kaolin.

[0101] The accelerator is trimethylolpropane triacrylate.

[0102] The defoamer is a polyether modified organic silicon defoamer.

[0103] The pigment is a sun-fast brilliant red.

[0104] The preparation method of the organic lanthanum synergist is:

[0105] B1: Add 4 g lanthanum nitrate, 7 g 4-aminopyridine-2,6-dicarboxylic acid, and 300 g ethanol into a stirred tank and stir at 35°C for 60 minutes;

[0106] B2: Add 24 g of tris(hydroxymethyl)aminomethane, 60 g of ethylene glycol diglycidyl ether and 4 g of sodium ethoxide into the stirred kettle, stir at 50° C. for 120 minutes, and remove ethanol by vacuum distillation to obtain an organic lanthanum synergist.

[0107] Comparative Example 1

[0108] A medical multi-layer wristband and a preparation method thereof, wherein the operation steps are as follows:

[0109] The thermal synthetic paper is laminated with the EVA substrate, and a layer of transparent UV primer is printed on the surface of the material. After drying, colored UV ink is partially printed, and finally a layer of transparent UV varnish is printed. After die-cutting, a medical multi-layer wristband is made.

[0110] The printing adopts a relief printing process, the printing equipment is a satellite type full-rotary printing machine, and a high-pressure mercury lamp is used as a UV curing unit.

[0111] The preparation method of the transparent UV primer is as follows:

[0112] Weigh 30 g of aliphatic modified epoxy acrylic resin, 20 g of 1,6-hexanediol diacrylate, 1 g of initiator, 1 g of filler, 0.5 g of accelerator, 0.1 g of defoamer, and 0.1 g of stabilizer into a reactor, heat to 40° C., and stir for 20 min to obtain a transparent UV primer.

[0113] The preparation method of the transparent UV varnish is:

[0114] Weigh 30 g of silicone-modified epoxy acrylic resin, 20 g of tripropylene glycol diacrylate, 1 g of initiator, 1 g of filler, 0.5 g of accelerator, 0.1 g of defoamer, and 0.1 g of stabilizer into a reaction kettle, heat to 40° C., and stir for 20 min to obtain a transparent UV varnish.

[0115] The preparation method of the colored UV ink is:

[0116] Weigh 30 g of epoxy acrylic resin, 20 g of trimethylolpropane triacrylate, 1 g of initiator, 1 g of filler, 0.5 g of accelerator, 0.1 g of defoamer, 0.1 g of stabilizer, and 0.1 g of pigment into a reaction kettle, heat to 40° C., and stir for 20 min to obtain colored UV ink.

[0117] The initiator is 2,4,6-trimethylbenzoyldiphenylphosphine oxide.

[0118] The filler is calcium carbonate.

[0119] The accelerator is dicyclopentadienyl acrylate.

[0120] The defoamer is a polyether defoamer.

[0121] The pigment is titanium white.

[0122] Comparative Example 2

[0123] A medical multi-layer wristband and a preparation method thereof, wherein the operation steps are as follows:

[0124] The thermal synthetic paper is laminated with the EVA substrate, and a layer of transparent UV primer is printed on the surface of the material. After drying, colored UV ink is partially printed, and finally a layer of transparent UV varnish is printed. After die-cutting, a medical multi-layer wristband is made.

[0125] The printing adopts a relief printing process, the printing equipment is a satellite type full-rotary printing machine, and a high-pressure mercury lamp is used as a UV curing unit.

[0126] The preparation method of the transparent UV primer is as follows:

[0127] Weigh 30 g of aliphatic modified epoxy acrylic resin, 20 g of 1,6-hexanediol diacrylate, 1 g of initiator, 1 g of filler, 0.5 g of accelerator, 0.1 g of defoamer, and 0.1 g of stabilizer into a reactor, heat to 40° C., and stir for 20 min to obtain a transparent UV primer.

[0128] The preparation method of the transparent UV varnish is:

[0129] Weigh 30 g of silicone-modified epoxy acrylic resin, 20 g of tripropylene glycol diacrylate, 0.008 g of organic lanthanum enhancer, 1 g of initiator, 1 g of filler, 0.5 g of accelerator, 0.1 g of defoamer, and 0.1 g of stabilizer in a reactor, heat to 40° C., and stir for 20 min to obtain a transparent UV varnish.

[0130] The preparation method of the colored UV ink is:

[0131] Weigh 30 g of epoxy acrylic resin, 20 g of trimethylolpropane triacrylate, 0.03 g of organic lanthanum synergist, 1 g of initiator, 1 g of filler, 0.5 g of accelerator, 0.1 g of defoamer, 0.1 g of stabilizer, and 0.1 g of pigment in a reactor, heat to 40° C., and stir for 20 min to obtain colored UV ink.

[0132] The initiator is 2,4,6-trimethylbenzoyldiphenylphosphine oxide.

[0133] The filler is calcium carbonate.

[0134] The accelerator is dicyclopentadienyl acrylate.

[0135] The defoamer is a polyether defoamer.

[0136] The pigment is titanium white.

[0137] The preparation method of the organic lanthanum synergist is:

[0138] B1: Add 1 g of lanthanum nitrate, 3 g of 4-aminopyridine-2,6-dicarboxylic acid, and 220 g of ethanol into a stirred tank and stir at 27°C for 20 minutes;

[0139] B2: Add 30 g of ethylene glycol diglycidyl ether and 1 g of sodium ethoxide into the stirred kettle, stir at 40° C. for 50 minutes, and remove ethanol by vacuum distillation to obtain an organic lanthanum synergist.

[0140] Comparative Example 3

[0141] A medical multi-layer wristband and a preparation method thereof, wherein the operation steps are as follows:

[0142] The thermal synthetic paper is laminated with the EVA substrate, and a layer of transparent UV primer is printed on the surface of the material. After drying, colored UV ink is partially printed, and finally a layer of transparent UV varnish is printed. After die-cutting, a medical multi-layer wristband is made.

[0143] The printing adopts a relief printing process, the printing equipment is a satellite type full-rotary printing machine, and a high-pressure mercury lamp is used as a UV curing unit.

[0144] The preparation method of the transparent UV primer is as follows:

[0145] Weigh 30 g of aliphatic modified epoxy acrylic resin, 20 g of 1,6-hexanediol diacrylate, 1 g of initiator, 1 g of filler, 0.5 g of accelerator, 0.1 g of defoamer, and 0.1 g of stabilizer into a reactor, heat to 40° C., and stir for 20 min to obtain a transparent UV primer.

[0146] The preparation method of the transparent UV varnish is:

[0147] Weigh 30 g of silicone-modified epoxy acrylic resin, 20 g of tripropylene glycol diacrylate, 0.008 g of organic lanthanum enhancer, 1 g of initiator, 1 g of filler, 0.5 g of accelerator, 0.1 g of defoamer, and 0.1 g of stabilizer in a reactor, heat to 40° C., and stir for 20 min to obtain a transparent UV varnish.

[0148] The preparation method of the colored UV ink is:

[0149] Weigh 30 g of epoxy acrylic resin, 20 g of trimethylolpropane triacrylate, 0.03 g of organic lanthanum synergist, 1 g of initiator, 1 g of filler, 0.5 g of accelerator, 0.1 g of defoamer, 0.1 g of stabilizer, and 0.1 g of pigment in a reactor, heat to 40° C., and stir for 20 min to obtain colored UV ink.

[0150] The initiator is 2,4,6-trimethylbenzoyldiphenylphosphine oxide.

[0151] The filler is calcium carbonate.

[0152] The accelerator is dicyclopentadienyl acrylate.

[0153] The defoamer is a polyether defoamer.

[0154] The pigment is titanium white.

[0155] The preparation method of the organic lanthanum synergist is:

[0156] B1: Add 1 g of lanthanum nitrate, 3 g of 4-aminopyridine-2,6-dicarboxylic acid, and 220 g of ethanol into a stirred tank and stir at 27°C for 20 minutes;

[0157] B2: Add 12 g of tris(hydroxymethyl)aminomethane and 1 g of sodium ethoxide into the stirred kettle, stir at 40° C. for 50 minutes, and remove ethanol by vacuum distillation to obtain an organic lanthanum synergist.

[0158] Evaluation of the embodiment:

[0159] 1. Ink adhesion test: Use 3M 810 tape to test ink loss;

[0160] 2. Printing effect: observe the thermal printing condition;

[0161] 3. Test of resistance to wash-free disinfectant: Soak in 65% isopropyl alcohol, rub manually until the ink falls off, and count the number of rubbing times;

[0162] 4. Water resistance test: Soak in water, rub manually until the ink falls off, and count the number of rubbing times;

[0163] 5. Alcohol resistance test: Soak in alcohol, rub manually until the ink falls off, and count the number of rubbings.

[0164] Test results:

[0165]

[0166] Through the data analysis of the above embodiments and comparative examples, the organic lanthanum enhancer prepared by the present invention can effectively improve the adhesion of ink; the medical multi-layer wristband prepared by the present invention has good ink adhesion, good printing effect, and excellent resistance to wash-free disinfectant, water, alcohol and the like.

[0167] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A method for preparing a medical multi-layer wristband, the operating steps of which are: The thermal synthetic paper is laminated with the EVA substrate, a layer of transparent UV primer is printed on the surface of the material, and after drying, a colored UV ink is partially printed, and finally a layer of transparent UV varnish is printed, and then a medical multi-layer wristband is made after die-cutting; The printing is carried out using a relief printing process, the printing equipment is a satellite type full rotary printing press, and a high pressure mercury lamp is used as a UV curing unit; The preparation method of the transparent UV varnish is: According to weight, 30-50 parts of organosilicon-modified epoxy acrylic resin, 20-30 parts of tripropylene glycol diacrylate, 0.008-0.03 parts of organolanthanum synergist, 1-5 parts of initiator, 1-3 parts of filler, 0.5-2 parts of accelerator, 0.1-0.5 parts of defoamer, and 0.1-0.5 parts of stabilizer are weighed in a reaction kettle, heated to 40-50° C., and stirred for 20-40 minutes to obtain a transparent UV varnish; The preparation method of the colored UV ink is: According to weight, 30-50 parts of epoxy acrylic resin, 20-30 parts of trimethylolpropane triacrylate, 0.03-0.2 parts of organic lanthanum synergist, 1-5 parts of initiator, 1-3 parts of filler, 0.5-2 parts of accelerator, 0.1-0.5 parts of defoamer, 0.1-0.5 parts of stabilizer, and 0.1-0.5 parts of pigment are weighed in a reaction kettle, heated to 40-50° C., and stirred for 20-40 minutes to obtain colored UV ink; The preparation method of the organic lanthanum synergist is: B1: Add 1-4 parts of lanthanum nitrate, 3-7 parts of 4-aminopyridine-2,6-dicarboxylic acid, and 220-300 parts of ethanol into a stirring kettle according to their weight ratio, and stir at 27-35° C. for 20-60 minutes; B2: Add 12-24 parts of tris(hydroxymethyl)aminomethane, 30-60 parts of ethylene glycol diglycidyl ether and 1-4 parts of sodium ethoxide into the stirred kettle, stir at 40-50° C. for 50-120 minutes; remove ethanol by vacuum distillation to obtain an organic lanthanum synergist.

2. The method for preparing a medical multi-layer wristband according to claim 1, characterized in that: The preparation method of the transparent UV primer is as follows: According to weight, 30-50 parts of aliphatic modified epoxy acrylic resin, 20-30 parts of 1,6-hexanediol diacrylate, 1-5 parts of initiator, 1-3 parts of filler, 0.5-2 parts of accelerator, 0.1-0.5 parts of defoamer, and 0.1-0.5 parts of stabilizer are weighed in a reaction kettle, heated to 40-50°C, stirred for 20-40 minutes, and a transparent UV primer is obtained.

3. A method for preparing a medical multi-layer wristband according to any one of claims 1-2, characterized in that: The initiator is one of 2,4,6-trimethylbenzoyldiphenylphosphine oxide, benzoin dimethyl ether, 1-hydroxy-cyclohexyl-phenyl ketone and 4-chlorobenzophenone.

4. A method for preparing a medical multi-layer wristband according to any one of claims 1-2, characterized in that: The filler is one of calcium carbonate, barium sulfate, aluminum hydroxide, silicon dioxide, talcum powder and kaolin.

5. A method for preparing a medical multi-layer wristband according to any one of claims 1-2, characterized in that: The accelerator is one of dicyclopentadienyl acrylate, 4-tert-butylcyclohexyl acrylate and trimethylolpropane triacrylate.

6. A method for preparing a medical multi-layer wristband according to any one of claims 1-2, characterized in that: The defoamer is one of a polyether defoamer, a silicone oil defoamer and a polyether modified organic silicon defoamer.

7. The method for preparing a medical multi-layer wristband according to claim 1, characterized in that: The pigment is one of titanium white, zinc white, benzidine yellow, azo lake red, phthalocyanine blue, sun-fast yellow, permanent orange, golden red, permanent yellow and sun-fast brilliant red.

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