CN114481698B - 一种热敏纸的交联水性涂层、热敏纸及其制备方法 - Google Patents

一种热敏纸的交联水性涂层、热敏纸及其制备方法 Download PDF

Info

Publication number
CN114481698B
CN114481698B CN202210071468.4A CN202210071468A CN114481698B CN 114481698 B CN114481698 B CN 114481698B CN 202210071468 A CN202210071468 A CN 202210071468A CN 114481698 B CN114481698 B CN 114481698B
Authority
CN
China
Prior art keywords
liquid layer
parts
cross
linking agent
coating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202210071468.4A
Other languages
English (en)
Other versions
CN114481698A (zh
Inventor
奎明红
文辉
程晓
梁冬梅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUANGDONG GUANHAO HIGH-TECH CO LTD
Original Assignee
GUANGDONG GUANHAO HIGH-TECH CO LTD
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GUANGDONG GUANHAO HIGH-TECH CO LTD filed Critical GUANGDONG GUANHAO HIGH-TECH CO LTD
Priority to CN202210071468.4A priority Critical patent/CN114481698B/zh
Publication of CN114481698A publication Critical patent/CN114481698A/zh
Application granted granted Critical
Publication of CN114481698B publication Critical patent/CN114481698B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
    • B41M5/42—Intermediate, backcoat, or covering layers
    • B41M5/426—Intermediate, backcoat, or covering layers characterised by inorganic compounds, e.g. metals, metal salts, metal complexes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
    • B41M5/42—Intermediate, backcoat, or covering layers
    • B41M5/44—Intermediate, backcoat, or covering layers characterised by the macromolecular compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/34—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising cellulose or derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D21H19/385—Oxides, hydroxides or carbonates
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D21H19/40—Coatings with pigments characterised by the pigments siliceous, e.g. clays
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D21H19/42—Coatings with pigments characterised by the pigments at least partly organic
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/46—Non-macromolecular organic compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/54—Starch
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H19/58—Polymers or oligomers of diolefins, aromatic vinyl monomers or unsaturated acids or derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/62—Macromolecular organic compounds or oligomers thereof obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating
    • D21H19/82—Paper comprising more than one coating superposed
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/22—Agents rendering paper porous, absorbent or bulky
    • D21H21/24—Surfactants
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
    • Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Paper (AREA)

Abstract

本发明公开了一种热敏纸的交联水性涂层、热敏纸及其制备方法，涉及特种纸加工领域。涂层包括A液层、B液层和C液层，将A液层、B液层原料和C液层原料依次由近及远的顺序通过膜转移法/帘式涂布法结合、气刀涂布法/帘式涂布法结合或流延法/帘式涂布法层叠涂布在基纸材料上,压光干燥后即得。本申请通过各层之间涂层组合产生交联作用，使热敏纸不受原纸背热熔胶水或者水胶以及表层不同溶剂的渗透，提高抗溶剂和抗涂层破坏的能力，热敏纸的耐牢度和强度提高，抗黄化效果好，该热敏纸能用于连续性打印，保证了打印条码内容的清晰度，具有良好的印刷适性。

Description

一种热敏纸的交联水性涂层、热敏纸及其制备方法
技术领域
本发明涉及特种纸加工的领域，尤其涉及一种热敏纸的交联水性涂层、热敏纸及其制备方法。
背景技术
市面上有很多种类的热敏纸，有普通型和特种型热敏纸。普通型热敏纸在遇到水、增塑剂或高温高湿的环境下长时间放置一段时间后会出现显色变浅或显色消失的情况，信息容易丢失，其基本原理为热敏纸的显色剂一结晶紫内酯遇到高温高湿条件发生逆反应而导致。特种型热敏纸是为了提高普通型热敏纸的防水、防摩擦、防溶剂等防护效果，在热敏发色层上再涂覆保护层，以赋予热敏纸有更好的防水、防塑和防摩擦等性能，此类热敏纸价格昂贵，主要用于高端市场。
目前特种热敏纸中交联方法制备的涂层价格昂贵，个别交联体系存在不抗黄化的缺陷，同时涂层的耐溶剂防护效果适应性受限。
发明内容
本发明提供了一种热敏纸的交联水性涂层、热敏纸及其制备方法，以解决目前特种热敏纸制备的交联涂层昂贵、熟化时间长、不抗黄化和耐溶剂防护效果不足的技术问题。
为了解决上述技术问题，本发明目的之一提供了一种热敏纸的交联水性涂层，包括依次涂敷于基纸的A液层、B液层和C液层，所述A液层包括轻质碳酸钙、热塑性颜料、改性玉米淀粉、聚乙烯醇、水溶性壳聚糖共聚物和交联剂A；所述B液层包括4,4′-二羟基二苯砜、2-苯氨基-6-二丁氨基-3-甲基-荧烷、1,2-二间甲苯氧基乙烷、水性树脂分散体、羧甲基纤维素钠、硬脂酸锌、表面活性剂、分散剂和交联剂B；所述C液层包括重质碳酸钙、硅灰石、滑石粉、脂肪酸酰胺、石蜡、胶乳和交联剂C；
其中，所述交联剂A为乙二醛，所述交联剂B为碳化二亚胺或聚氮丙啶，所述交联剂C为碳化二亚胺、聚氮丙啶、异氰酸酯和三聚氰胺中的一种或多种。
通过采用上述方案，本申请通过各层之间涂层组合产生交联作用，使热敏纸不受原纸背热熔胶水或者水胶以及表层不同溶剂的渗透，提高抗溶剂和抗涂层破坏的能力；同时，水溶性壳聚糖的氨基或者羟基具有亲核作用，与乙二醛相互发生交联反应，可以提高热敏纸的耐牢度和强度；整体可以预防原纸背胶渗透和提高热敏涂层受溶剂侵害，形成良好的成膜层和耐摩擦性能，抗黄化效果好，涂料，不受熟化时间的影响，且制备成本低，该热敏纸能用于连续性打印，保证了打印条码内容的清晰度，具有良好的印刷适性。
作为优选方案，所述A液层包括以下重量份原料：0-35份轻质碳酸钙、10份-40份热塑性颜料、20份-40份改性玉米淀粉、10份-20份聚乙烯醇、10份-30份水溶性壳聚糖共聚物和10份-15份交联剂A。
作为优选方案，所述B液层包括以下重量份原料：30份-40份4,4′-二羟基二苯砜、20份-25份2-苯氨基-6-二丁氨基-3-甲基-荧烷、25份-35份1,2-二间甲苯氧基乙烷、30份-40份水性树脂分散体、20份-25份羧甲基纤维素钠、10份-20份硬脂酸锌、6份-8份表面活性剂、5份-10份分散剂和5份-10份交联剂B。
作为优选方案，所述C液层包括以下重量份原料：15份-20份重质碳酸钙、5份-10份硅灰石、5份-10份滑石粉、10份-15份脂肪酸酰胺、10份-15份石蜡、40份-60份胶乳和5份-10份交联剂C。
作为优选方案，所述B液层中的胶乳包括丙烯酸胶乳和/或苯乙烯胶乳，所述水性树脂分散体为丙烯酸树脂分散体。
作为优选方案，当所述B液层中的交联剂B为碳化二亚胺时，所述C液层中的交联剂C为碳化二亚胺或由异氰酸酯和三聚氰胺按质量比为1：0.2复配而得的混合物；当所述B液层中的交联剂B为聚氮丙啶，所述C液层中的交联剂C为聚氮丙啶。
作为优选方案，所述水溶性壳聚糖共聚物为羟甲基壳聚糖、胺基壳聚糖和壳聚糖盐酸盐中的一种或多种。
作为优选方案，所述A液层、B液层和C液层均采用膜转移法/帘式涂布法结合、气刀涂布法/帘式涂布法结合或流延法/帘式涂布法结合进行涂布。
为了解决上述技术问题，本发明目的之二提供了一种热敏纸的交联水性涂层的制备方法，包括以下步骤：按距离基纸由近及远的顺序依次层叠涂敷A液层、B液层和C液层，将A液层原料调整其PH值控制在5-6,B液层原料和C液层原料依次由近及远的顺序通过膜转移法/帘式涂布法结合、气刀涂布法/帘式涂布法结合或流延法/帘式涂布法层叠涂布在纸基材料上,涂布的生产车速在400m/min-800m/min，交联水性涂层的总涂布量6g/m2-15g/m2,压光干燥后即得。
为了解决上述技术问题，本发明目的之三提供了一种热敏纸，所述热敏纸表面涂敷有交联水性涂层。
相比于现有技术，本发明实施例具有如下有益效果：
(1)本申请通过各层之间涂层组合产生交联作用，使热敏纸不受原纸背热熔胶水或者水胶以及表层不同溶剂的渗透，提高抗溶剂和抗涂层破坏的能力。
(2)水性环保交联体系阻止了热敏纸的抗溶剂、水、油和涂层破坏能力，水溶性壳聚糖与乙二醛相互发生交联反应，提高基纸与交联水性涂层结合度，整体的耐牢度和强度提高。
(3)该热敏纸制备成本低，抗黄化效果好，具有优异的发色稳定性，能用于连续性打印，保证了打印条码内容的清晰度，具有良好的印刷适性。
具体实施方式
下面将结合本发明实施例，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例一
一种热敏纸的交联水性涂层，包括涂敷于基纸表面的热敏涂料层，热敏涂料层的总涂布量6g/m2，且其包括按距离基纸由近及远的顺序依次层叠的A液层、B液层和C液层，将A液层原料调整其PH值控制在(5.5±0.5),B液层原料和C液层原料依次由近及远的顺序通过膜转移法/帘式涂布法层叠涂布在纸基材料上,涂布的生产车速在(700±100)m/min，压光干燥后即得。
其中，A液层的制备原料包括35g轻质碳酸钙、10g热塑性颜料、40g改性玉米淀粉、10g聚乙烯醇、10g水溶性壳聚糖共聚物和15g交联剂A，水溶性壳聚糖共聚物具体为羧甲基壳聚糖，交联剂A具体为乙二醛，其中改性玉米淀粉可以选用任意合适的改性玉米淀粉，在本实施例中，具体选用长春大成生物科技开发有限公司生成的改性玉米淀粉。
其中，B液层的制备原料包括40g 4,4′-二羟基二苯砜、20g 2-苯氨基-6-二丁氨基-3-甲基-荧烷、35g 1,2-二间甲苯氧基乙烷、40g水性树脂分散体、20g羧甲基纤维素钠、20g硬脂酸锌、8g表面活性剂、5g分散剂和5g交联剂B，水性树脂分散体具体为丙烯酸树脂分散体，交联剂B具体为碳化二亚胺，表面活性剂具体为二异辛基琥珀磺酸钠，分散剂具体为十二烷基磺酸钠。
其中，C液层的制备原料包括20g重质碳酸钙、10g硅灰石、10g滑石粉、10g脂肪酸酰胺、10g石蜡、20g丙烯酸胶乳、40g苯乙烯胶乳和5g交联剂C，交联剂C由异氰酸酯和三聚氰胺按质量比为1：0.2比例复配而成。
实施例二
一种热敏纸的交联水性涂层，包括涂敷于基纸表面的热敏涂料层，热敏涂料层的总涂布量15g/m2，且其包括按距离基纸由近及远的顺序依次层叠的A液层、B液层和C液层，将A液层原料调整其PH值控制在(5.5±0.5),B液层原料和C液层原料依次由近及远的顺序层叠涂布通过气刀涂布法/帘式涂布法涂布在纸基材料上,涂布的生产车速在(500±100)m/min，压光干燥后即得。
其中，A液层的制备原料包括35g轻质碳酸钙、10g热塑性颜料、40g改性玉米淀粉、10g聚乙烯醇、10g水溶性壳聚糖共聚物和15g交联剂A，水溶性壳聚糖共聚物具体为胺基壳聚糖，交联剂A具体为乙二醛，其中改性玉米淀粉可以选用任意合适的改性玉米淀粉，在本实施例中，具体选用长春大成生物科技开发有限公司生成的改性玉米淀粉。
其中，B液层的制备原料包括30g 4,4′-二羟基二苯砜、25g 2-苯氨基-6-二丁氨基-3-甲基-荧烷、25g 1,2-二间甲苯氧基乙烷、30g水性树脂分散体、25g羧甲基纤维素钠、10g硬脂酸锌、6g表面活性剂、10g分散剂和10g交联剂B，水性树脂分散体具体为丙烯酸树脂分散体，交联剂B具体为碳化二亚胺，表面活性剂具体为二异辛基琥珀磺酸钠，分散剂具体为十二烷基磺酸钠。
其中，C液层的制备原料包括15g重质碳酸钙、5g硅灰石、5g滑石粉、15g脂肪酸酰胺、15g石蜡、40g苯乙烯胶乳和10g交联剂C，交联剂C具体为碳化二亚胺。
实施例三
一种热敏纸的交联水性涂层，包括涂敷于基纸表面的热敏涂料层，热敏涂料层的总涂布量10g/m2，且其包括按距离基纸由近及远的顺序依次层叠的A液层、B液层和C液层，将A液层原料调整其PH值控制在(5.5±0.5),B液层原料和C液层原料依次由近及远的顺序层叠涂布通过流延法/帘式涂布法涂布在纸基材料上,涂布的生产车速在(600±100)m/min，压光干燥后即得。
其中，A液层的制备原料包括40g热塑性颜料、20g改性玉米淀粉、20g聚乙烯醇、30g水溶性壳聚糖共聚物和10g交联剂A，水溶性壳聚糖共聚物具体为壳聚糖盐酸盐，交联剂A具体为乙二醛，其中改性玉米淀粉可以选用任意合适的改性玉米淀粉，在本实施例中，具体选用长春大成生物科技开发有限公司生成的改性玉米淀粉。
其中，B液层的制备原料包括40g 4,4′-二羟基二苯砜、20g 2-苯氨基-6-二丁氨基-3-甲基-荧烷、35g 1,2-二间甲苯氧基乙烷、40g水性树脂分散体、20g羧甲基纤维素钠、20g硬脂酸锌、8g表面活性剂、5g分散剂和5g交联剂B，水性树脂分散体具体为丙烯酸树脂分散体，交联剂B具体为聚氮丙啶，表面活性剂具体为二异辛基琥珀磺酸钠，分散剂具体为十二烷基磺酸钠。
其中，C液层的制备原料包括20g重质碳酸钙、10g硅灰石、10g滑石粉、10g脂肪酸酰胺、10g石蜡、40g丙烯酸胶乳和5g交联剂C，交联剂C具体为聚氮丙啶。
对比例一
一种热敏纸的交联水性涂层，各步骤及各步骤使用的试剂、工艺参数均与实施例一相同，不同的地方在于，A液层中不含有水溶性壳聚糖共聚物和交联剂A，B液层中不含有交联剂B，C液层中不含有交联剂C。
对比例二
一种热敏纸的交联水性涂层，各步骤及各步骤使用的试剂、工艺参数均与实施例二相同，不同的地方在于，A液层中不含有水溶性壳聚糖共聚物和交联剂A，B液层中不含有交联剂B，C液层中不含有交联剂C。
对比例三
一种热敏纸的交联水性涂层，各步骤及各步骤使用的试剂、工艺参数均与实施例三相同，不同的地方在于，A液层中不含有水溶性壳聚糖共聚物和交联剂A，B液层中不含有交联剂B，C液层中不含有交联剂C。
对比例四
一种热敏纸的交联水性涂层，各步骤及各步骤使用的试剂、工艺参数均与实施例一相同，不同的地方在于，A液层中不含有水溶性壳聚糖共聚物。
对比例五
一种热敏纸的交联水性涂层，各步骤及各步骤使用的试剂、工艺参数均与实施例一相同，不同的地方在于，A液层的交联剂A具体为碳化二亚胺。
对比例六
一种热敏纸的交联水性涂层，各步骤及各步骤使用的试剂、工艺参数均与实施例一相同，不同的地方在于，A液层的交联剂A具体为聚氮丙啶。
性能检测试验
试验样品：实施例1-3和对比例1-6；
试验方法：参照中华人民共和国轻工业标准QB/T28210-2011《热敏纸》测试供试材料的防水、防油、防酒精、防摩擦性能，包括抗压强度(KN/m)、防护性能(％)、显色性能、背胶渗透和抗黄化性能，结果如表1所示。
表1-实施例1-3和对比例1-6的性能试验结果
Figure BDA0003482236430000071
Figure BDA0003482236430000081
结合表1中实施例1-3和对比例1-3的检测结果可知，本申请通过各层之间的交联剂相互发生交联反应，使得不同涂层组合产生交联作用，使热敏纸不受原纸背热熔胶水或者水胶以及表层不同溶剂的渗透，提高抗溶剂和抗涂层破坏的能力，可以形成良好的成膜层和耐摩擦性能，该热敏纸能用于连续性打印，保证了打印条码内容的清晰度，具有良好的印刷适性。
结合表1中实施例1和对比例1、4-6的检测结果可知，相比于碳化二亚胺和聚氮丙啶交联剂，乙二醛与水溶性壳聚糖共聚物的结合能力效果更佳，这是由于水溶性壳聚糖共聚物在A涂层中与乙二醛起交联作用，壳聚糖的氨基或者羟基具有亲核作用，与乙二醛相互发生交联反应，加强基纸与交联水性涂层之间的结合，可以提高热敏纸的耐牢度和强度，预防原纸背胶渗透和提高热敏涂层受溶剂侵害。
以上所述的具体实施例，对本发明的目的、技术方案和有益效果进行了进一步的详细说明，应当理解，以上所述仅为本发明的具体实施例而已，并不用于限定本发明的保护范围。特别指出，对于本领域技术人员来说，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (5)

1.一种热敏纸的交联水性涂层，其特征在于，包括依次涂敷于基纸的A液层、B液层和C液层，所述A液层包括以下重量份原料：0-35份轻质碳酸钙、10份-40份热塑性颜料、20份-40份改性玉米淀粉、10份-20份聚乙烯醇、10份-30份水溶性壳聚糖共聚物和10份-15份交联剂A；所述B液层包括以下重量份原料：30份-40份4,4′-二羟基二苯砜、20份-25份2-苯氨基-6-二丁氨基-3-甲基-荧烷、25份-35份1,2-二间甲苯氧基乙烷、30份-40份水性树脂分散体、20份-25份羧甲基纤维素钠、10份-20份硬脂酸锌、6份-8份表面活性剂、5份-10份分散剂和5份-10份交联剂B；所述C液层包括以下重量份原料：15份-20份重质碳酸钙、5份-10份硅灰石、5份-10份滑石粉、10份-15份脂肪酸酰胺、10份-15份石蜡、40份-60份胶乳和5份-10份交联剂C；
其中，所述交联剂A为乙二醛，所述交联剂B为碳化二亚胺或聚氮丙啶，所述交联剂C为碳化二亚胺、聚氮丙啶、异氰酸酯和三聚氰胺中的一种或多种；
当所述B液层中的交联剂B为碳化二亚胺时，所述C液层中的交联剂C为碳化二亚胺或由异氰酸酯和三聚氰胺按质量比为1：0.2复配而得的混合物，所述B液层和C液层均采用膜转移法/帘式涂布法结合或气刀涂布法/帘式涂布法结合进行涂布；
当所述B液层中的交联剂B为聚氮丙啶，所述C液层中的交联剂C为聚氮丙啶，所述B液层和C液层采用流延法/帘式涂布法结合进行涂布；
A液层原料涂布前调整其pH值控制在5-6。
2.如权利要求1所述的一种热敏纸的交联水性涂层，其特征在于，所述B液层中的胶乳包括丙烯酸胶乳和/或苯乙烯胶乳，所述水性树脂分散体为丙烯酸树脂分散体。
3.如权利要求1所述的一种热敏纸的交联水性涂层，其特征在于，所述水溶性壳聚糖共聚物为羧甲基壳聚糖、胺基壳聚糖和壳聚糖盐酸盐中的一种或多种。
4.一种如权利要求1-3任一所述的热敏纸的交联水性涂层的制备方法，其特征在于，包括以下步骤：按距离基纸由近及远的顺序依次层叠涂敷A液层、B液层和C液层，压光干燥后即得,涂布的生产车速在400 m/min-800m/min，交联水性涂层的总涂布量6 g/m2-15g/m2；
其中，当所述B液层中的交联剂B为碳化二亚胺时，所述C液层中的交联剂C为碳化二亚胺或由异氰酸酯和三聚氰胺按质量比为1：0.2复配而得的混合物，所述B液层和C液层依次由近及远的顺序采用膜转移法/帘式涂布法结合或气刀涂布法/帘式涂布法结合进行涂布在基纸材料上；
当所述B液层中的交联剂B为聚氮丙啶，所述C液层中的交联剂C为聚氮丙啶，所述B液层和C液层依次由近及远的顺序采用流延法/帘式涂布法结合进行涂布在基纸材料上。
5.一种热敏纸，其特征在于，所述热敏纸表面涂附有如权利要求1-3任一所述的交联水性涂层。
CN202210071468.4A 2022-01-21 2022-01-21 一种热敏纸的交联水性涂层、热敏纸及其制备方法 Active CN114481698B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210071468.4A CN114481698B (zh) 2022-01-21 2022-01-21 一种热敏纸的交联水性涂层、热敏纸及其制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210071468.4A CN114481698B (zh) 2022-01-21 2022-01-21 一种热敏纸的交联水性涂层、热敏纸及其制备方法

Publications (2)

Publication Number Publication Date
CN114481698A CN114481698A (zh) 2022-05-13
CN114481698B true CN114481698B (zh) 2023-05-09

Family

ID=81472463

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210071468.4A Active CN114481698B (zh) 2022-01-21 2022-01-21 一种热敏纸的交联水性涂层、热敏纸及其制备方法

Country Status (1)

Country Link
CN (1) CN114481698B (zh)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005238725A (ja) * 2004-02-27 2005-09-08 Oji Paper Co Ltd 感熱記録体

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3161774B2 (ja) * 1990-08-25 2001-04-25 株式会社リコー 感熱記録材料
JP4309739B2 (ja) * 2003-03-18 2009-08-05 三菱製紙株式会社 感熱記録材料
CN101809229B (zh) * 2007-09-27 2012-02-15 可乐丽股份有限公司 包含乙烯醇类聚合物的纸用涂层剂、涂布其的纸和热敏纸
JP2012056218A (ja) * 2010-09-10 2012-03-22 Mitsui Chemicals Inc 感熱紙保護層用樹脂およびそれを用いた感熱記録材料
CN106192561A (zh) * 2016-07-08 2016-12-07 广东松炀再生资源股份有限公司 一种防伪热敏纸及其生产方法
CN107268332A (zh) * 2017-06-28 2017-10-20 常州水精灵环保设备有限公司 一种热敏纸及其制备方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005238725A (ja) * 2004-02-27 2005-09-08 Oji Paper Co Ltd 感熱記録体

Also Published As

Publication number Publication date
CN114481698A (zh) 2022-05-13

Similar Documents

Publication Publication Date Title
US5916673A (en) Recording sheets for ink jet printing
US6432501B1 (en) Pressure sensitive ink jet media for digital printing
US5212008A (en) Coated recording sheets
US6632485B1 (en) High gloss ink jet receiving medium
EP0199874A1 (en) Ink jet recording sheet having an ink-receptive layer containing polyethylene oxide
KR100644607B1 (ko) 잉크젯 프린터용 기록 매체
US6500527B2 (en) Image receptor sheet
US6194077B1 (en) Waterfast ink receptive material
US7235284B1 (en) Recording sheets for ink jet printing
EP3463923B1 (en) Solvent resistant glossy printable substrates and their methods of manufacture and use
EP1613482B1 (en) Inkjet recording element comprising particles and polymers
US7045199B2 (en) Drawable and writable photo album
CN114481698B (zh) 一种热敏纸的交联水性涂层、热敏纸及其制备方法
US4849286A (en) Transparent plotter film
US6565949B1 (en) Ink jet recording media having a coating comprising alumina particulate
WO1995016561A1 (en) Ink acceptor material
EP1275516B1 (en) Ink jet recording media and method for their preparation
JP3088115B2 (ja) 透明印刷用紙
JP2004300349A (ja) 帯電防止性に優れる塗工剤及びこれを塗工した耐水性シート
JPH0693596A (ja) キャストコート紙の製造方法
JP2782817B2 (ja) 情報記録用フイルム
JP2001080201A (ja) 記録用シート
JP2880258B2 (ja) カラー印画物の製造方法
KR20040110676A (ko) 잉크젯 프린터용 기록 매체
JP2002254797A (ja) インクジェット記録用シート

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant