CN114808541A - 一种可书写热敏纸的制备方法 - Google Patents

一种可书写热敏纸的制备方法 Download PDF

Info

Publication number
CN114808541A
CN114808541A CN202210545566.7A CN202210545566A CN114808541A CN 114808541 A CN114808541 A CN 114808541A CN 202210545566 A CN202210545566 A CN 202210545566A CN 114808541 A CN114808541 A CN 114808541A
Authority
CN
China
Prior art keywords
parts
paper
writable
stirring
thermal
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.)
Granted
Application number
CN202210545566.7A
Other languages
English (en)
Other versions
CN114808541B (zh
Inventor
叶旭峰
林土珍
叶建明
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 Jiancai Paper Technology Co ltd
Original Assignee
Guangdong Jiancai Paper Technology 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 Jiancai Paper Technology Co ltd filed Critical Guangdong Jiancai Paper Technology Co ltd
Priority to CN202210545566.7A priority Critical patent/CN114808541B/zh
Publication of CN114808541A publication Critical patent/CN114808541A/zh
Application granted granted Critical
Publication of CN114808541B publication Critical patent/CN114808541B/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
    • B41M5/41—Base layers supports or substrates
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y40/00—Manufacture or treatment of nanostructures
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment 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
    • D21H19/40—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
    • D21H19/44—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
    • D21H19/56—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
    • D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H19/60—Polyalkenylalcohols; Polyalkenylethers; Polyalkenylesters
    • 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
    • D21H19/822—Paper comprising more than one coating superposed two superposed coatings, both being pigmented
    • 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
    • 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
    • D21H21/28—Colorants ; Pigments or opacifying agents
    • 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
    • D21H21/50—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 form
    • D21H21/52—Additives of definite length or shape

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Paper (AREA)

Abstract

本发明公开一种可书写热敏纸的制备方法，属于特种热敏纸制备技术领域，所述热敏纸通过在原纸上依次涂布预涂涂层和热敏涂层制得，其中，按质量份数计，所述热敏涂层包括以下组分组成：热敏染料8‑11份；热敏显色剂16‑20份；增感剂8‑13份；填料30‑45份；润滑剂6‑10份；聚乙烯醇6‑10份；分散剂0.4‑0.8份；消泡剂0.4‑0.8粉；润湿流平剂0.8‑1.3份；所述填料包括有纳米二氧化硅；本发明通过在热敏涂层中添加功能性的吸墨材料，成功实现在热敏纸上书写功能，笔墨可以在书写后2s内被可书写热敏纸吸收干燥，扩展了热敏纸的适用领域。

Description

一种可书写热敏纸的制备方法
技术领域
本发明涉及特种热敏纸制备技术领域，具体涉及一种可书写热敏纸的制备方法。
背景技术
热敏纸又被称为热敏传真纸、热敏记录纸、热敏复印纸，是一种特殊的涂布加工纸，其制造原理是在普通的原纸纸基上涂布一层“热敏涂料”，在受热条件下，热敏涂料粉末混合起显色反应进而完成打印，现已在通讯、医疗、物流、商超等领域广泛应用。
对于书写纸来说，一般要求纸张对油墨的吸收快速，书写后油墨主要靠纸张纤维的毛细管作用吸收，低分子的粘结剂和溶剂通过小孔隙和纸张纤维粗糙的表面，以相当慢的速度进入纸张内部，随着时间的延长，纸面上油墨层中的溶剂含量下降，油墨黏度增大，墨层凝结固化；因此纸张越疏松，孔隙越大，吸墨性也就越强。
随着社会经济和科技的快速发展，热敏纸因其优异的性能而日益显示出广阔的用途和重要的市场地位，需要不断开发新的品种来满足不同应用领域的需求，扩大热敏纸的消费量，而由于热敏纸上涂布有热敏涂层，同时也为了提高打印清晰度以及利于走纸，热敏纸表面光滑度一般比较高，那就必然使纸张表面纤维间隙形成的毛细管的数量和直径减少，粗糙程度减低，吸墨能力下降，因此，书写在热敏纸上的油墨迹可轻易擦拭消去，一般热敏纸并不适合于书写，难以满足不同应用领域的需求。
发明内容
针对上述问题，本发明提供一种可书写热敏纸及其制备方法，本发明通过在热敏涂层中添加功能性的吸墨材料，成功实现在热敏纸上的书写功能，笔墨可以在书写后2s内被可书写热敏纸吸收干燥，可避免未干油墨蹭脏衣袖和污损笔迹。
本发明的目的采用以下技术方案来实现：
一种可书写热敏纸的制备方法，通过在原纸上依次涂布预涂涂层和热敏涂层制得，其中，按质量份数计，所述热敏涂层包括以下组分：
热敏染料8-11份；热敏显色剂16-20份；增感剂8-13份；填料30-45份；润滑剂6-10份；聚乙烯醇6-10份；分散剂0.4-0.8份；消泡剂0.4-0.8粉；润湿流平剂0.8-1.3份；
所述填料包括有纳米二氧化硅。
优选的，按质量份数计，所述预涂涂层包括以下组分组成：
煅烧高岭土40-50份；纳米二氧化硅14-18份；丁苯乳液12-18份；聚乙烯醇2-5份；增稠剂0.8-1.2份；分散剂0.4-0.6份；消泡剂0.4-0.6份。
优选的，所述纳米二氧化硅由反相微乳液法制备，包括以下步骤：
(1)将环己烷、正己醇、曲拉通X-100和去离子水混合并充分搅拌至溶液透明，在室温条件下，加入氨水和正硅酸乙酯，剧烈搅拌过夜后加入丙酮溶剂以沉淀，分离沉淀物，洗涤后再次分散在去离子水中，得到分散液；
其中，所述环己烷、正己醇、曲拉通X-100、去离子水、氨水和正硅酸乙酯的体积分数为10：(2.3-2.5)：(2.3-2.5)：(0.6-0.65)：(0.12-0.14)：(0.03-0.04)；
(2)在所述分散液中加入十六烷基三甲基氯化铵和均三甲苯，超声乳化后加入正硅酸乙酯和精氨酸，在40-50℃下搅拌反应12-24h，分离沉淀物，洗涤后再次分散在乙醇中，加入硝酸铵，升温溶解后，保温搅拌4-6h，再次分离沉淀并洗涤，干燥后制得；
其中，所述分散液与所述十六烷基三甲基氯化铵、均三甲苯、正硅酸乙酯和精氨酸的质量比例为100：(0.4-0.5)：(0.85-0.9)：(0.12-0.13)：(0.024-0.025)。
优选的，所述纳米二氧化硅的制备方法还包括以下步骤：
(3)将步骤(2)制得的干燥产物分散在无水甲苯中，加入巯丙基三甲氧基硅烷，升温并回流1-2h，分离沉淀物并以无水乙醇洗涤，干燥后制得巯基化中间体，将所述巯基化中间体加入到甲醇中，加入双氧水和浓硫酸，室温下搅拌反应1-3h，分离沉淀物并以无水乙醇洗涤，干燥后得到磺化改性产物；
其中，所述干燥产物与所述无水甲苯、巯丙基三甲氧基硅烷的质量比例为1：(0.3-0.32)：(8.5-9)；所述巯基化中间体与所述甲醇、双氧水和浓硫酸的质量比例为1：(7.8-8)：(30-35)：(0.45-0.5)。
优选的，所述纳米二氧化硅的制备方法还包括以下步骤：
(4)将所述磺化改性产物分散在去离子水中，加入终浓度均为2-4wt.％的壳聚糖和冰醋酸，在室温下搅拌反应4-6h，边搅拌边滴加戊二醛，在30-50℃下保温搅拌1-2h，分离沉淀物并以无水乙醇洗涤，制得；
其中，所述壳聚糖的脱乙酰度在90％以上，所述磺化改性产物与所述壳聚糖的质量比例在(0.6-1.2)：10。
优选的，所述原纸为热敏原纸、双胶纸、书写纸、铜版纸或白卡纸，所述原纸的纸张克数在100-200g/m2，平滑度在30s以上。
优选的，所述填料中所述纳米二氧化硅的含量在40-80wt.％。
优选的，所述增感剂为1,2-二苯氧基乙烷、二苯砜或1,2-二(3-甲基苯氧基)乙烷。
优选的，所述润湿流平剂为聚醚硅氧烷共聚物、硅氧烷双生表面活性剂、聚醚改性聚二甲基硅氧烷或大分子聚醚改性丙烯酸酯。
本发明的另一目的在于提供一种由所述制备方法制备得到的可书写热敏纸。
本发明的有益效果为：
(1)本发明通过在热敏涂层中添加功能性的吸墨材料，对墨水有很好的固定性能以及很好的着色能力，成功实现在热敏纸上书写功能，笔墨可以在书写后2s内被可书写热敏纸吸收干燥，形成固定笔迹，可避免未干油墨蹭脏衣袖和污损笔迹；基于吸墨材料和热敏显色材料之间功能匹配，在实现热敏纸书写功能的同时，还保持感热打印的过程中走纸流畅，图像清晰度高。
(2)本发明通过反相微乳液法，在常规法制得的纳米二氧化硅基础上，以十六烷基三甲基氯化铵形成胶束粒子为模板，以均三甲苯为扩孔剂，制备得到具有微介孔结构的纳米二氧化硅微球材料，一方面可以提高其作为涂层填料与涂层基体树脂间的相容性，另一方面则作为吸附材料提高涂层的吸墨性和固定性，进而提升其可书写性；进一步的，本发明还通过对所述二氧化硅进行磺化改性以提高所述纳米二氧化硅填料的表面酸性，当涂层与碱性的油墨材料接触时可以进一步提高其吸墨性，实现笔墨的快速吸收干燥；更进一步的，为降低表面磺化改性二氧化硅材料的基团反应活性，提高改性二氧化硅材料和所述热敏纸的贮藏稳定性，本发明再次以带正电荷的壳聚糖对所述改性二氧化硅材料进行表面静电自组装改性，当改性二氧化硅材料与碱性的油墨材料接触时，壳聚糖胺基去质子化，使得静电作用减弱甚至解体，再通过所述改性二氧化硅材料的表面酸性实现快速吸墨，在实现快速吸墨的同时降低油墨pH值，进一步增大油墨黏度，表现为油墨的快速吸收和干燥，进而实现光滑热敏纸的书写和快干。
具体实施方式
结合以下实施例对本发明作进一步描述。
实施例1
一种可书写热敏纸的制备方法，具体是通过在原纸上依次涂布预涂涂层和热敏涂层，所述原纸为热敏原纸、双胶纸、书写纸、铜版纸或白卡纸，纸张定量为100-200g/m2，平滑度大于30s，60s时表面吸水量Cobb小于60g/m2；其中，
按质量份数计，所述热敏涂层包括以下组分组成：
热敏染料10份；热敏显色剂18份；增感剂9份；纳米二氧化硅28份；煅烧高岭土12份；润滑剂7份；聚乙烯醇8份；分散剂0.5份；消泡剂0.5粉；润湿流平剂1份；涂布量7g/m2；
所述染料为2-(2-4-二甲苯胺基)-3-甲基-6-二乙氨基荧烷；
所述显色剂为2,4-二羟基二苯砜或4,4'-二羟基二苯砜；
所述增感剂为1,2-二苯氧基乙烷或1,2-二(3-甲基苯氧基)乙烷；
所述润滑剂为硬脂酸锌或石蜡；
所述润湿流平剂为乙氧基聚二甲基硅氧烷表面活性剂；
按质量份数计，所述预涂涂层包括以下组分组成：
煅烧高岭土42份；纳米二氧化硅16份；丁苯乳液18份；聚乙烯醇3份；增稠剂1份；分散剂0.5份；消泡剂0.5份；涂布量9g/m2；
所述纳米二氧化硅的制备方法包括以下步骤：
(1)将环己烷、正己醇、曲拉通X-100和去离子水混合并充分搅拌至溶液透明，在室温条件下，加入氨水(25wt.％)和正硅酸乙酯，剧烈搅拌过夜后加入丙酮溶剂以沉淀，分离沉淀物，干燥后制得所述纳米二氧化硅；
其中，所述环己烷、正己醇、曲拉通X-100、去离子水、氨水和正硅酸乙酯的体积分数为10：2.4：2.4：0.62：0.1：0.03。
采用PPS粗糙度仪测定粗糙度指标，本实施例所述热敏纸的PPS≤1.5μm，具有良好的平滑度；采用COBB吸水性测定仪测定表面吸收性指标，测得本实施例所述热敏纸的表面吸收性在17g/m2(60s)，以pH值在8.0-9.0的缓冲溶液模拟油墨材料，测得本实施例所述热敏纸的表面吸收性在17g/m2(60s)。
实施例2
一种可书写热敏纸的制备方法，具体是通过在原纸上依次涂布预涂涂层和热敏涂层，所述原纸为热敏原纸、双胶纸、书写纸、铜版纸或白卡纸，纸张定量为100-200g/m2，平滑度大于30s，60s时表面吸水量Cobb小于60g/m2；其中，
按质量份数计，所述热敏涂层包括以下组分组成：
热敏染料10份；热敏显色剂18份；增感剂9份；纳米二氧化硅28份；煅烧高岭土12份；润滑剂7份；聚乙烯醇8份；分散剂0.5份；消泡剂0.5粉；润湿流平剂1份；涂布量7g/m2；
所述染料为2-(2-4-二甲苯胺基)-3-甲基-6-二乙氨基荧烷；
所述显色剂为2,4-二羟基二苯砜或4,4'-二羟基二苯砜；
所述增感剂为1,2-二苯氧基乙烷或1,2-二(3-甲基苯氧基)乙烷；
所述润滑剂为硬脂酸锌或石蜡；
所述润湿流平剂为乙氧基聚二甲基硅氧烷表面活性剂；
按质量份数计，所述预涂涂层包括以下组分组成：
煅烧高岭土42份；纳米二氧化硅16份；丁苯乳液18份；聚乙烯醇3份；增稠剂1份；分散剂0.5份；消泡剂0.5份；涂布量9g/m2；
所述纳米二氧化硅的制备方法包括以下步骤：
(1)将环己烷、正己醇、曲拉通X-100和去离子水混合并充分搅拌至溶液透明，在室温条件下，加入氨水(25wt.％)和正硅酸乙酯，剧烈搅拌过夜后加入丙酮溶剂以沉淀，分离沉淀物，洗涤后再次分散在去离子水中，得到分散液；
其中，所述环己烷、正己醇、曲拉通X-100、去离子水、氨水和正硅酸乙酯的体积分数为10：2.4：2.4：0.62：0.1：0.03；
(2)在所述分散液中加入十六烷基三甲基氯化铵和均三甲苯，超声乳化后加入正硅酸乙酯和精氨酸，在45℃下搅拌反应16h，分离沉淀物，洗涤后再次分散在乙醇中，加入硝酸铵(终浓度0.02g/mL)，升温溶解后，保温搅拌4h，再次分离沉淀并洗涤，干燥后制得；
其中，所述分散液与所述十六烷基三甲基氯化铵、均三甲苯、正硅酸乙酯和精氨酸的质量比例为100：0.43：0.86：0.12：0.025。
采用PPS粗糙度仪测定粗糙度指标，本实施例所述热敏纸的PPS≤2.5μm，具有良好的平滑度；采用COBB吸水性测定仪测定表面吸收性指标，测得本实施例所述热敏纸的表面吸收性在28g/m2(60s)，以pH值在8.0-9.0的缓冲溶液模拟油墨材料，测得本实施例所述热敏纸的表面吸收性在29g/m2(60s)。
实施例3
一种可书写热敏纸的制备方法，同实施例2，区别在于，所述纳米二氧化硅的制备方法还包括以下步骤：
(3)将步骤(2)制得的干燥产物分散在无水甲苯中，加入巯丙基三甲氧基硅烷，升温并回流1-2h，分离沉淀物并以无水乙醇洗涤，干燥后制得巯基化中间体，将所述巯基化中间体加入到甲醇中，加入双氧水和浓硫酸，室温下搅拌反应2h，分离沉淀物并以无水乙醇洗涤，干燥后制得；
其中，所述干燥产物与所述无水甲苯、巯丙基三甲氧基硅烷的质量比例为1：0.3：8.7；所述巯基化中间体与所述甲醇、双氧水和浓硫酸的质量比例为1：7.9：32：0.48。
采用PPS粗糙度仪测定粗糙度指标，本实施例所述热敏纸的PPS≤2.5μm，具有良好的平滑度；采用COBB吸水性测定仪测定表面吸收性指标，测得本实施例所述热敏纸的表面吸收性在29g/m2(60s)，以pH值在8.0-9.0的缓冲溶液模拟油墨材料，测得本实施例所述热敏纸的表面吸收性在38g/m2(60s)。
实施例4
一种可书写热敏纸的制备方法，同实施例3，区别在于，所述纳米二氧化硅的制备方法还包括以下步骤：
(4)将步骤(3)制得的所述磺化产物分散在去离子水中，加入终浓度均为3wt.％的壳聚糖(粘度400mPa·s，脱乙酰度90.2％)和冰醋酸，在室温下搅拌反应4-6h，边搅拌边滴加戊二醛(2.5wt.％)，在35℃下保温搅拌1h，分离沉淀物并以无水乙醇洗涤，制得；
其中，所述磺化改性产物与所述壳聚糖的质量比例在0.8：10。
采用PPS粗糙度仪测定粗糙度指标，本实施例所述热敏纸的PPS≤2.5μm，具有良好的平滑度；采用COBB吸水性测定仪测定表面吸收性指标，测得本实施例所述热敏纸的表面吸收性在28g/m2(60s)，以pH值在8.0-9.0的缓冲溶液模拟油墨材料，测得本实施例所述热敏纸的表面吸收性在39g/m2(60s)。
最后应当说明的是，以上实施例仅用以说明本发明的技术方案，而非对本发明保护范围的限制，尽管参照较佳实施例对本发明作了详细地说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的实质和范围。

Claims (10)

1.一种可书写热敏纸的制备方法，其特征在于，在原纸上依次涂布预涂涂层和热敏涂层制得，其中，按质量份数计，所述热敏涂层包括以下组分：
热敏染料8-11份；热敏显色剂16-20份；增感剂8-13份；填料30-45份；润滑剂6-10份；聚乙烯醇6-10份；分散剂0.4-0.8份；消泡剂0.4-0.8粉；润湿流平剂0.8-1.3份；
所述填料包括有纳米二氧化硅。
2.根据权利要求1所述的一种可书写热敏纸的制备方法，其特征在于，按质量份数计，所述预涂涂层包括以下组分组成：
煅烧高岭土40-50份；纳米二氧化硅14-18份；丁苯乳液12-18份；聚乙烯醇2-5份；增稠剂0.8-1.2份；分散剂0.4-0.6份；消泡剂0.4-0.6份。
3.根据权利要求1或2所述的一种可书写热敏纸的制备方法，其特征在于，所述纳米二氧化硅由反相微乳液法制备，包括以下步骤：
(1)将环己烷、正己醇、曲拉通X-100和去离子水混合并充分搅拌至溶液透明，在室温条件下，加入氨水和正硅酸乙酯，剧烈搅拌过夜后加入丙酮溶剂以沉淀，分离沉淀物，洗涤后再次分散在去离子水中，得到分散液；
其中，所述环己烷、正己醇、曲拉通X-100、去离子水、氨水和正硅酸乙酯的体积分数为10：(2.3-2.5)：(2.3-2.5)：(0.6-0.65)：(0.12-0.14)：(0.03-0.04)；
(2)在所述分散液中加入十六烷基三甲基氯化铵和均三甲苯，超声乳化后加入正硅酸乙酯和精氨酸，在40-50℃下搅拌反应12-24h，分离沉淀物，洗涤后再次分散在乙醇中，加入硝酸铵，升温溶解后，保温搅拌4-6h，再次分离沉淀并洗涤，干燥后制得；
其中，所述分散液与所述十六烷基三甲基氯化铵、均三甲苯、正硅酸乙酯和精氨酸的质量比例为100：(0.4-0.5)：(0.85-0.9)：(0.12-0.13)：(0.024-0.025)。
4.根据权利要求3所述的一种可书写热敏纸的制备方法，其特征在于，所述纳米二氧化硅的制备方法还包括以下步骤：
(3)将步骤(2)制得的干燥产物分散在无水甲苯中，加入巯丙基三甲氧基硅烷，升温并回流1-2h，分离沉淀物并以无水乙醇洗涤，干燥后制得巯基化中间体，将所述巯基化中间体加入到甲醇中，加入双氧水和浓硫酸，室温下搅拌反应1-3h，分离沉淀物并以无水乙醇洗涤，干燥后得到磺化改性产物；
其中，所述干燥产物与所述无水甲苯、巯丙基三甲氧基硅烷的质量比例为1：(0.3-0.32)：(8.5-9)；所述巯基化中间体与所述甲醇、双氧水和浓硫酸的质量比例为1：(7.8-8)：(30-35)：(0.45-0.5)。
5.根据权利要求4所述的一种可书写热敏纸的制备方法，其特征在于，所述纳米二氧化硅的制备方法还包括以下步骤：
(4)将所述磺化改性产物分散在去离子水中，加入终浓度均为2-4wt.％的壳聚糖和冰醋酸，在室温下搅拌反应4-6h，边搅拌边滴加戊二醛，在30-50℃下保温搅拌1-2h，分离沉淀物并以无水乙醇洗涤，制得；
其中，所述壳聚糖的脱乙酰度在90％以上，所述磺化改性产物与所述壳聚糖的质量比例在(0.6-1.2)：10。
6.根据权利要求1所述的一种可书写热敏纸的制备方法，其特征在于，所述原纸为热敏原纸、双胶纸、书写纸、铜版纸或白卡纸，所述原纸的纸张克数在100-200g/m2，平滑度在30s以上。
7.根据权利要求1所述的一种可书写热敏纸的制备方法，其特征在于，所述填料中所述纳米二氧化硅的含量在40-80wt.％。
8.根据权利要求1所述的一种可书写热敏纸的制备方法，其特征在于，所述增感剂为1,2-二苯氧基乙烷、二苯砜或1,2-二(3-甲基苯氧基)乙烷。
9.根据权利要求1所述的一种可书写热敏纸的制备方法，其特征在于，所述润湿流平剂为聚醚硅氧烷共聚物、硅氧烷双生表面活性剂、聚醚改性聚二甲基硅氧烷或大分子聚醚改性丙烯酸酯。
10.根据权利要求1-9之一所述制备方法制得的可书写热敏纸。
CN202210545566.7A 2022-05-19 2022-05-19 一种可书写热敏纸的制备方法 Active CN114808541B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210545566.7A CN114808541B (zh) 2022-05-19 2022-05-19 一种可书写热敏纸的制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210545566.7A CN114808541B (zh) 2022-05-19 2022-05-19 一种可书写热敏纸的制备方法

Publications (2)

Publication Number Publication Date
CN114808541A true CN114808541A (zh) 2022-07-29
CN114808541B CN114808541B (zh) 2023-04-18

Family

ID=82516018

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210545566.7A Active CN114808541B (zh) 2022-05-19 2022-05-19 一种可书写热敏纸的制备方法

Country Status (1)

Country Link
CN (1) CN114808541B (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103074804A (zh) * 2012-12-20 2013-05-01 湖南恒瀚纸业有限公司 一种高光泽热敏纸及其生产方法
CN106442436A (zh) * 2016-07-12 2017-02-22 江苏大学 用于检测水中痕量4‑硝基苯酚的磁性量子点印迹材料、制备方法及用途
CN106928909A (zh) * 2017-04-07 2017-07-07 安徽埃克利环境工程有限公司 一种二氧化硅@银壳核结构纳米流体及其制备方法
CN107055553A (zh) * 2016-10-27 2017-08-18 湖北工业大学 一种巯基羧基双重修饰的介孔二氧化硅纳米颗粒及其制备方法
CN110552243A (zh) * 2018-05-31 2019-12-10 金华盛纸业（苏州工业园区）有限公司 一种热敏纸及其制备方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103074804A (zh) * 2012-12-20 2013-05-01 湖南恒瀚纸业有限公司 一种高光泽热敏纸及其生产方法
CN106442436A (zh) * 2016-07-12 2017-02-22 江苏大学 用于检测水中痕量4‑硝基苯酚的磁性量子点印迹材料、制备方法及用途
CN107055553A (zh) * 2016-10-27 2017-08-18 湖北工业大学 一种巯基羧基双重修饰的介孔二氧化硅纳米颗粒及其制备方法
CN106928909A (zh) * 2017-04-07 2017-07-07 安徽埃克利环境工程有限公司 一种二氧化硅@银壳核结构纳米流体及其制备方法
CN110552243A (zh) * 2018-05-31 2019-12-10 金华盛纸业（苏州工业园区）有限公司 一种热敏纸及其制备方法

Also Published As

Publication number Publication date
CN114808541B (zh) 2023-04-18

Similar Documents

Publication Publication Date Title
JP4704564B2 (ja) シリカ分散体、コーティング組成物、及び記録媒体
CN107267046B (zh) 一种热敏胶片及其制备方法、应用
US20050147770A1 (en) Active ligand-modified inorganic porous coatings for ink-jet media
BR112012002250B1 (pt) composição de revestimento, método para fazer uma composição de revestimento, folha de mídia e método para formar uma folha de mídia
BR112013020988B1 (pt) Mídia para jato de tinta
US8697204B2 (en) Recording sheet for ink jet printing
KR20040105002A (ko) 잉크젯 프린터용 기록 매체
EP3463923B1 (en) Solvent resistant glossy printable substrates and their methods of manufacture and use
CN100510255C (zh) 涂布纸涂料抗水剂及其制备方法
CN102501674A (zh) 水性高光防水聚丙烯写真纸及其制备方法
CN104452464A (zh) 热敏纸及其制备方法
CN114808541B (zh) 一种可书写热敏纸的制备方法
WO2001005599A1 (en) Image receiving element and method of manufacturing the element
US8389075B2 (en) Sulfur-containing inorganic media coatings for ink-jet applications
US6589637B2 (en) Recording sheets for ink jet printing
US6500525B1 (en) Recording medium, image formation method thereby, and production method thereof
CN111916641A (zh) 隔膜、其制备方法及电池
US7927675B2 (en) Recording sheets for ink jet printing
CN112832057B (zh) 一种蓝图纸及其制备方法
JPH047189A (ja) インクジェット記録媒体
BR112019013965B1 (pt) Papel de transferência para impressão por sublimação compreendendo um substrato fibroso, processo de fabricação do mesmo, papel de transferência impresso para impressão por sublimação, processo de impressão para um papel de transferência para impressão por sublimação e processo para decorar um suporte
JP4805504B2 (ja) 記録媒体
CN111304961A (zh) 无碳复写纸用微胶囊及其制备方法、无碳复写纸及其涂料
CN108611921B (zh) 一种纸张涂料、涂布纸及纸张涂料的制备方法
WO2008041342A1 (en) Recording sheet for ink jet printing

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
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: A preparation method for writing thermosensitive paper

Effective date of registration: 20231211

Granted publication date: 20230418

Pledgee: Bank of China Limited by Share Ltd. Jiangmen branch

Pledgor: Guangdong Jiancai Paper Technology Co.,Ltd.

Registration number: Y2023980070406