WO2018000226A1 - 一种温敏可擦的中性墨水及其制备方法 - Google Patents

一种温敏可擦的中性墨水及其制备方法 Download PDF

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Publication number
WO2018000226A1
WO2018000226A1 PCT/CN2016/087594 CN2016087594W WO2018000226A1 WO 2018000226 A1 WO2018000226 A1 WO 2018000226A1 CN 2016087594 W CN2016087594 W CN 2016087594W WO 2018000226 A1 WO2018000226 A1 WO 2018000226A1
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temperature
neutral ink
sensitive
sensitive erasable
erasable neutral
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PCT/CN2016/087594
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English (en)
French (fr)
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罗秋红
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多莱（上海）文化用品有限公司
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Priority to PCT/CN2016/087594 priority Critical patent/WO2018000226A1/zh
Priority to EP16778982.5A priority patent/EP3284791A4/en
Priority to US16/314,099 priority patent/US20190322885A1/en
Priority to CN201680019026.8A priority patent/CN107636084A/zh
Publication of WO2018000226A1 publication Critical patent/WO2018000226A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/16—Writing inks
    • C09D11/17—Writing inks characterised by colouring agents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/16—Writing inks
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/16—Writing inks
    • C09D11/18—Writing inks specially adapted for ball-point writing instruments
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/50—Sympathetic, colour changing or similar inks

Definitions

  • the invention relates to a neutral ink, in particular to a temperature sensitive erasable neutral ink and a preparation method thereof.
  • the temperature-sensitive erasable neutral ink is a neutral ink which uses a temperature-sensitive microcapsule pigment as a coloring agent, and uses a resin or a rubber material to rub heat on a writing error to achieve a temperature at which the pigment disappears, thereby achieving the purpose of erasing.
  • a first object of the present invention is to obtain a temperature-sensitive erasable neutral ink which has a clearer writing, a clearer chromaticity, and a good ink stability and smooth writing.
  • a second object of the present invention is to obtain a method for preparing a temperature-sensitive erasable neutral ink which has a clearer writing, a clearer chromaticity, and a good ink stability and smooth writing.
  • a third object of the present invention is to obtain a writing instrument for a temperature-sensitive erasable neutral ink which has a clearer writing, a clearer chromaticity, and a good ink stability and smooth writing.
  • the present invention provides a temperature sensitive erasable neutral ink comprising the following components in parts by weight:
  • the dispersing agent is one or more of a sodium polyacrylate salt, a polyacrylic acid potassium salt, a polyacrylic acid ammonium salt, and a polyhydric alcohol fatty acid ester;
  • the antifoaming antifoaming agent is one or more of a silicone emulsion, a polyol, a polyol ether, and a wax dispersion emulsion.
  • the temperature-sensitive erasable neutral ink further comprises 0 to 5 parts by weight of a pH adjuster.
  • the rheology aid is a resin thickener
  • the resin thickener is a cellulose thickener, a polymer modified clay thickener or an associative thickener.
  • the resin thickener is a cellulose thickener, a polymer modified clay thickener or an associative thickener.
  • the resin thickener is used in an amount of from 1 to 3 parts by weight.
  • the temperature sensitive microcapsule particle is a reversible thermotropic loss microcapsule pigment
  • the reversible thermotropic loss microcapsule pigment comprises an electron donating color developing organic compound (a), an electron accepting compound (b), and A reaction medium for controlling the color reaction of (a) and (b).
  • the reversible thermally depleted microcapsule pigment has a disappearing temperature of 45 to 75 °C.
  • the humectant is one or more of N-methyl-2-pyrrolidone, sorbitol, xylitol, polyol or polyvinyl propylene glycol.
  • the lubricant is one or both of polyvinylpyrrolidone or a water-soluble phosphate.
  • the present invention also provides a method for preparing a temperature-sensitive erasable neutral ink as described above, comprising the steps of: providing the components according to claim 1; and adding the components to the vacuum in batches.
  • the reaction pot was stirred uniformly, stirring speed was 200 rpm, stirred for 3 hours, and then the temperature-sensitive erasable neutral ink was obtained by filtration.
  • the present invention also provides a writing instrument having a barrel containing a temperature-sensitive erasable neutral ink as described above and a pen for deriving the temperature-sensitive erasable neutral ink in the barrel body.
  • the temperature-sensitive erasable neutral ink of the invention adds a larger amount of temperature-sensitive microcapsule particles than the existing temperature-sensitive erasable neutral ink, so that the writing is more clear and the chromaticity is more distinct.
  • the defects of uneven dispersion and easy sedimentation of the conventional temperature-sensitive microcapsule particles are overcome, and the stability of the ink and the smoothness of writing are ensured.
  • the present invention provides a temperature sensitive erasable neutral ink comprising the following components in parts by weight:
  • the dispersing agent is one or more of a sodium polyacrylate salt, a polyacrylic acid potassium salt, a polyacrylic acid ammonium salt, and a polyhydric alcohol fatty acid ester;
  • the antifoaming antifoaming agent is one or more of a silicone emulsion, a polyol, a polyol ether, and a wax dispersion emulsion.
  • the temperature sensitive erasable neutral ink further comprises 0-5 parts by weight of a pH adjuster.
  • the temperature sensitive erasable neutral ink of the present invention is added with a larger amount of temperature sensitive microcapsule particles than the existing neutral ink. It is known to those skilled in the art that the size of the temperature sensitive microcapsule particles is larger than that of the conventional conventional pigment. When preparing a neutral ink, there is often a phenomenon in which the microcapsule particles are unevenly dispersed and easily settled. Therefore, according to the conventional understanding by those skilled in the art, as the amount of the microcapsule particles increases, the dispersion is uneven and easy to settle. The phenomenon will be more obvious and outstanding. Then, the inventors added a larger amount of temperature-sensitive microcapsule particles by selecting a suitable amount of each of the components to improve the clarity and chromaticity of the writing, and ensure good ink stability.
  • the rheological aid is a resin thickener in an amount of 1-3 parts by weight;
  • the resin thickener is a cellulose thickener (such as sodium carboxymethyl cellulose, hydroxyethyl Cellulose sodium, etc.), polymer modified clay thickeners (such as bentonite, lithium montmorillonite clay, etc.) or associative thickeners (such as associative polyol polyethers, ethoxylated polyurethanes, One or more of associative alkali-swelling acrylates, and the like.
  • a cellulose thickener such as sodium carboxymethyl cellulose, hydroxyethyl Cellulose sodium, etc.
  • polymer modified clay thickeners such as bentonite, lithium montmorillonite clay, etc.
  • associative thickeners such as associative polyol polyethers, ethoxylated polyurethanes, One or more of associative alkali-swelling acrylates, and the like.
  • the temperature sensitive microcapsule particle is a reversible thermotropic loss microcapsule pigment, and the reversible thermotropic disappearance microcapsule pigment comprises an electron donating color developing organic compound (a), an electron accepting compound (b) and is used for control
  • the reaction medium for the color reaction of (a) and (b) the reversible heat-induced disappearance microcapsule pigment has a disappearing temperature of 45-75 ° C, and the temperature-sensitive microcapsule particles are commercially available raw materials.
  • the humectant is one or more of N-methyl-2-pyrrolidone, sorbitol, xylitol, polyol or polyvinyl propylene glycol.
  • the lubricant is one or both of polyvinylpyrrolidone or a water-soluble phosphate.
  • the preservative is one or two of benzoic acid, sodium benzoate, sorbic acid, potassium sorbate or calcium propionate.
  • the antifreeze agent is one or two of ethanol, ethylene glycol, diethylene glycol, ethylene glycol butyl ether, formamide, calcium chloride, sodium acetate or magnesium chloride.
  • the invention also provides a preparation method of the above temperature-sensitive erasable neutral ink, comprising the following steps:
  • the present invention also provides a writing instrument having a barrel containing a temperature-sensitive erasable neutral ink as described above and a pen for deriving the temperature-sensitive erasable neutral ink in the barrel
  • the writing of the body can be rubbed by heat using a material such as resin or rubber to achieve the temperature at which the pigment disappears, thereby achieving the purpose of erasing.
  • a magic erasable gel pen and control group No. M-801 sold by Zhen Cai Stationery Co., Ltd. is an A32338 erasable gel pen sold by Deli Group Co., Ltd.
  • the temperature-sensitive erasable gel pen draws three 10cm-length scratches on the paper surface, and if each of the 12 samples of the embodiment reaches the scratch, the scratch is uninterrupted and faded, and the scratch width is Evenly, when the writing is stopped, there is no ink leakage in the pen head, which is regarded as “good”; 9 to 11 samples are all scratch-free and the width of the scratch is even, and when the writing is stopped, there is no ink leakage, which is regarded as “qualified”; Nine or less samples are scratch-free and have a uniform scratch width. When the writing is stopped, there is no ink leakage, so it is regarded as “failed”.
  • the erasable gel pen draws three 3cm-length scratches on the paper surface, and then immediately wipes with an eraser. If 12 samples of each embodiment are capable of wiping off scratches, no damage is written. The interface is regarded as “good”; 9 to 11 samples are able to wipe off the scratches, and are not considered to be “qualified” without breaking the writing interface; 9 or less samples can wipe off the scratches without breaking the writing interface. It is considered as “failed”.
  • the erasable gel pen draws three 3cm-length scratches on the paper surface, and the scratches are stored for one week and then wiped with an eraser. If 12 samples of each embodiment are capable of wiping off the scratches, If the writing interface is not damaged, it is regarded as “good”; 9 to 11 samples are able to wipe off the scratches, and the printed interface is not considered to be “qualified”; 9 or less samples can be wiped off, no A broken writing interface is considered “failed”.
  • the erasable gel pen draws three 3cm-length scratches on the paper surface, wipes the scratches with an eraser, and then draws three 3cm-length scratches at the scratches, if each The 12 samples of each example achieved clear and uninterrupted scratches, which was regarded as “good”; 9 to 11 samples were all clear and uninterrupted, and were regarded as “qualified”; If the mark is clear and uninterrupted, it is considered “failed”.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

一种温敏可擦的中性墨水，包括感温微胶囊颗粒、分散剂、保湿剂、抑泡消泡剂、流变助剂、润滑剂、防腐剂、防冻剂和去离子水，还包括pH调节剂。所述中性墨水加入了较多量的感温微胶囊颗粒，使其书写的字迹更加清晰、色度也更加分明，同时在感温微胶囊颗粒的量较高的情况下，克服了传统感温微胶囊颗粒分散不均匀、容易沉降的缺陷，保证了墨水的稳定性和书写的顺畅性。

Description

一种温敏可擦的中性墨水及其制备方法 技术领域
本发明涉及一种中性墨水，特别涉及一种温敏可擦的中性墨水及其制备方法。
背景技术
自古以来，书写是人类记载信息、传承文化和表达思想中用的最多的一种刻画历史脚印的方法，常见的书写工具有铅笔、圆珠笔、钢笔、中性笔和毛笔等。在书写的过程中，书写错误是日常生活中经常遇到的问题，通常会采用橡皮擦涂擦、改正液覆盖和橡胶带粘除等手段更正错误。
温敏可擦中性墨水是以感温微胶囊颜料为着色剂的中性墨水，通过使用树脂或橡胶等材料在书写错误上摩擦生热，从而达到颜料消失的温度，实现可擦的目的。
发明内容
本发明的第一目的在于获得一种字迹更加清晰、色度更加分明，同时墨水稳定性好、书写顺畅的温敏可擦的中性墨水。
本发明的第二目的在于获得一种字迹更加清晰、色度更加分明，同时墨水稳定性好、书写顺畅的温敏可擦的中性墨水的制备方法。
本发明的第三目的在于获得一种字迹更加清晰、色度更加分明，同时墨水稳定性好、书写顺畅的温敏可擦的中性墨水的书写工具。
本发明的技术方案如下：
本发明提供了一种温敏可擦的中性墨水，包括由以下重量份计的组分制得：
Figure PCTCN2016087594-appb-000001
所述的分散剂为聚丙烯酸钠盐、聚丙烯酸钾盐、聚丙烯酸铵盐、多元醇脂肪酸酯中的一种或几种；
所述的抑泡消泡剂为聚硅氧烷乳液、多元醇、多元醇醚、蜡分散乳液中的一种或几种。
进一步优选，所述的一种温敏可擦的中性墨水，还包括0-5重量份的pH调节剂。
进一步优选，所述的流变助剂为树脂类增稠剂，所述的树脂类增稠剂为纤维素类增稠剂、聚合物改性黏土类增稠剂或缔合型增稠剂中的一种或几种。
进一步优选，所述的树脂类增稠剂的重量份为1-3重量份。
进一步优选，所述的感温微胶囊颗粒为可逆热致消失微胶囊颜料，所述的可逆热致消失微胶囊颜料包括给电子显色性有机化合物(a)、受电子性化合物(b)和用于控制(a)和(b)的显色反应的反应介质。
进一步优选，所述的可逆热致消失微胶囊颜料的消失温度为45-75℃。
进一步优选，所述的保湿剂为N-甲基-2-吡咯烷酮、山梨醇、木糖醇、多元醇或聚乙烯丙二醇中的一种或几种。
进一步优选，所述的润滑剂为聚乙烯吡咯烷酮或水溶性磷酸酯中的一种或两种。
本发明还提供了一种上述的一种温敏可擦的中性墨水的制备方法，包括如下步骤：提供如权利要求1所述的各组分；所述的各组分分批的加入真空反应锅，搅拌均匀，搅拌速度200转/分，搅拌3小时，然后经过滤、检测得到所述的温敏可擦的中性墨水。
本发明还提供了一种书写工具，具备容纳上述的一种温敏可擦的中性墨水的轴筒和用于导出所述轴筒内的所述的温敏可擦的中性墨水的笔体。
与现有技术相比，本发明的有益效果如下：
本发明的一种温敏可擦的中性墨水，相比现有温敏可擦中性墨水加入了较多量的感温微胶囊颗粒，使其书写的字迹更加清晰、色度也更加分明，同时在感温微胶囊颗粒的量较高的情况下，克服了传统感温微胶囊颗粒分散不均匀、容易沉降的缺陷，保证了墨水的稳定性和书写的顺畅性。
当然，实施本发明的任一产品并不一定需要同时达到以上所述的所有优点。
具体实施方式
下面结合具体实施例，进一步阐述本发明。应该理解，这些实施例仅用于说明本发明，而不用于限定本发明的保护范围。在实际应用中本领域技术人员根据本发明做出的改进和调整，仍属于本发明的保护范围。
本发明提供了一种温敏可擦的中性墨水，包括由以下重量份计的组分制得：
Figure PCTCN2016087594-appb-000002
Figure PCTCN2016087594-appb-000003
其中，所述的分散剂为聚丙烯酸钠盐、聚丙烯酸钾盐、聚丙烯酸铵盐、多元醇脂肪酸酯中的一种或几种；
所述的抑泡消泡剂为聚硅氧烷乳液、多元醇、多元醇醚、蜡分散乳液中的一种或几种。
所述的一种温敏可擦的中性墨水，还包括0-5重量份的pH调节剂。
本发明的温敏可擦的中性墨水相比现有中性墨水，加入了较多量的感温微胶囊颗粒，本领域技术人员可知，感温微胶囊颗粒的尺寸大于一般常规颜料，在使用其制备中性墨水时，经常会出现微胶囊颗粒分散不均匀、易于沉降的现象，因此，按照本领域技术人员常规的理解，随着微胶囊颗粒的量增加，这种分散不均匀、易于沉降的现象也会更加的明显和突出。然后本发明人通过选择一个所述的各组分的合适量的情况下，加入较多量的感温微胶囊颗粒以提高书写字迹的清晰度和色度的分明度，同时保证了墨水良好的稳定性和书写的顺畅性，即0.5-3重量份分散剂、3-10重量份保湿剂、0.01-0.1重量份抑泡消泡剂、0.5-3重量份流变助剂和0.5-1重量份润滑剂。
所述的流变助剂为树脂类增稠剂，重量份为1-3重量份；所述的树脂类增稠剂为纤维素类增稠剂(如羧甲基纤维素钠、羟乙基纤维素钠等)、聚合物改性黏土类增稠剂(如膨润土、锂基蒙脱石粘土等)或缔合型增稠剂(如缔合型多元醇聚醚、乙氧基化聚氨酯、缔合型碱溶胀丙烯酸酯等)中的一种或几种。
所述的感温微胶囊颗粒为可逆热致消失微胶囊颜料，所述的可逆热致消失微胶囊颜料包括给电子显色性有机化合物(a)、受电子性化合物(b)和用于控制(a)和(b)的显色反应的反应介质，所述的可逆热致消失微胶囊颜料的消失温度为45-75℃，所述的感温微胶囊颗粒为市场上可购买的原料。
所述的保湿剂为N-甲基-2-吡咯烷酮、山梨醇、木糖醇、多元醇或聚乙烯丙二醇中的一种或几种。
所述的润滑剂为聚乙烯吡咯烷酮或水溶性磷酸酯中的一种或两种。
所述的防腐剂为苯甲酸、苯甲酸钠、山梨酸、山梨酸钾或丙酸钙等中的一种或两种。
所述的防冻剂为乙醇、乙二醇、二甘醇、乙二醇丁醚、甲酰胺、氯化钙、醋酸钠或氯化镁中的一种或两种。
本发明还提供了一种上述的温敏可擦的中性墨水的制备方法，包括如下步骤：
将24-66重量份去离子水、0.5-3重量份分散剂、3-10重量份保湿剂和0.01-0.1重量份抑泡消泡剂加入到真空搅拌反应锅或307不锈钢医用反应锅，边搅拌边加入38-60重量份感温微胶囊颗粒，搅拌至颜料分散均匀；然后再分批加入0.5-3重量份流变助剂、0.5-1重量份润滑剂、0.02-0.04重量份防腐剂和3-5重量份防冻剂，继续搅拌3小时，搅拌速度200转/分，然后经过滤、检测得到所述的温敏可擦的中性墨水。
本发明还提供了一种书写工具，具备容纳上述的一种温敏可擦的中性墨水的轴筒和用于导出所述轴筒内的所述的温敏可擦的中性墨水的笔体，其书写的字迹可通过使用树脂或橡胶等材料在书写错误上摩擦生热，从而达到颜料消失的温度，实现可擦的目的。
为了更好的理解本发明的温敏可擦的中性墨水，下面将通过实施例1-4来介绍本发明的具体实施方法，并通过实施例来说明本发明的技术效果，对照组1为真彩文具股份有限公司销售的一款货号为M-801的魔力可擦中性笔和对照组2为得力集团有限公司销售的一款货号为A32338可擦中性笔。
实施例1
先将35.0g去离子水、2.5g聚丙烯酸钾盐(分散剂)、4g山梨醇(保湿剂)和0.03g聚硅氧烷乳液(抑泡消泡剂)加入到真空搅拌反应锅，边搅拌边加入38.0g感温微胶囊颗粒(消失温度55℃)，搅拌至颜料分散均匀；然后再分四批加入1g羧甲基纤维素钠(流变助剂)、0.5g聚乙烯吡咯烷酮(润滑剂)、0.02g苯甲酸钠(防腐剂)和3.5g乙二醇丁醚(防冻剂)，每批间隔30分钟，加完后，真 空下继续搅拌3小时，搅拌速度200转/分，然后经过滤、检测得到所述的温敏可擦的中性墨水。
实施例2
先将60.0g去离子水、1.5g聚丙烯酸钾盐(分散剂)、9g山梨醇(保湿剂)和0.1g聚硅氧烷乳液(抑泡消泡剂)加入到真空搅拌反应锅，边搅拌边加入60.0g感温微胶囊颗粒(消失温度55℃)，搅拌至颜料分散均匀；然后再分四批加入3g锂基蒙脱石粘土(流变助剂)、0.8g聚乙烯吡咯烷酮(润滑剂)、0.04g山梨酸(防腐剂)和5g二甘醇(防冻剂)，每批间隔30分钟，加完后，真空下继续搅拌3小时，搅拌速度200转/分，然后经过滤、检测得到所述的温敏可擦的中性墨水。
实施例3
先将55.0g去离子水、1g聚丙烯酸钠铵(分散剂)、6g聚乙烯丙二醇(保湿剂)和0.05g聚硅氧烷乳液(抑泡消泡剂)加入到真空搅拌反应锅，边搅拌边加入50.0g感温微胶囊颗粒(消失温度65℃)，搅拌至颜料分散均匀；然后再分四批加入2g乙氧基化聚氨酯(流变助剂)、0.6g水溶性磷酸酯(润滑剂)、0.02g苯甲酸钠(防腐剂)和3g乙二醇(防冻剂)，每批间隔30分钟，加完后，真空下继续搅拌3小时，搅拌速度200转/分，然后经过滤、检测得到所述的温敏可擦的中性墨水。
实施例4
先将50.0g去离子水、2g聚丙烯酸钠铵(分散剂)、4g N-甲基-2-吡咯烷酮(保湿剂)和0.05g聚硅氧烷乳液(抑泡消泡剂)加入到真空搅拌反应锅，边搅拌边加入45.0g感温微胶囊颗粒(消失温度45℃)，搅拌至颜料分散均匀；然后再分四批加入1.5g乙氧基化聚氨酯(流变助剂)、0.4g水溶性磷酸酯(润滑剂)、0.02g山梨酸钾(防腐剂)和2.5g醋酸钠(防冻剂)，每批间隔30分钟，加完后，真空下继续搅拌3小时，搅拌速度200转/分，然后经过滤、检测得到所述的温敏可擦的中性墨水。
1、书写性能的评定
(1)选取采用相同方法制得但是批次不同的实施例1～4温敏可擦的中性墨水产品各4批次，与铅黄铜制普通型笔头#1、铅黄铜制半针管型笔头#2、铅黄铜制葫芦头型笔头#3互相匹配，每种笔头分别与4批次的温敏可擦的中性墨水进行配合，因此每个实施例得到12个温敏可擦的中性笔样品，同时与对照组1和对照组2进行对照；
(2)所述温敏可擦的中性笔在纸面上划出3道10cm长度的划痕，若每个实施例的12个样品均达到划痕无间断、变淡现象，划痕宽度均匀，停止书写时笔头无漏墨，则视为“好”；9～11个样品均达到划痕无间断、且划痕宽度均匀，停止书写时笔头无漏墨，则视为“合格”；9个以下样品达到划痕无间断、且划痕宽度均匀，停止书写时笔头无漏墨，则视为“不合格”。
2、及时可擦性评定
(1)选取采用相同方法制得但是批次不同的实施例1～4中性墨水产品各4批次，与铅黄铜制普通型笔头#1、铅黄铜制半针管型笔头#2、铅黄铜制葫芦头型笔头#3互相匹配，每种笔头分别与4批次的可擦中性墨水进行配合，因此每个实施例得到12个可擦中性笔样品，同时与对照组1和对照组2进行对照；
(2)所述可擦中性笔在纸面上划出3道3cm长度的划痕，然后立即用橡皮擦拭，若每个实施例的12个样品均达到能擦拭掉划痕，不破损书写界面，则视为“好”；9～11个样品均达到能擦拭掉划痕，不破损书写界面，则视为“合格”；9个以下样品达到能擦拭掉划痕，不破损书写界面，则视为“不合格”。
3、长时间可擦性评定
(1)选取采用相同方法制得但是批次不同的实施例1～4中性墨水产品各4批次，与铅黄铜制普通型笔头#1、铅黄铜制半针管型笔头#2、铅黄铜制葫芦头型笔头#3互相匹配，每种笔头分别与3批次的可擦中性墨水进行配合，因此每个实施例得到12个可擦中性笔样品，同时与对照组1和对照组2进行对照；
(2)所述可擦中性笔在纸面上划出3道3cm长度的划痕，将划痕保存一周后用橡皮擦拭，若每个实施例的12个样品均达到能擦拭掉划痕，不破损书写界面，则视为“好”；9～11个样品均达到能擦拭掉划痕，不破损书写界面，则视为“合格”；9个以下样品达到能擦拭掉划痕，不破损书写界面，则视为“不合格”。
4、再书写性能的评定
(1)选取采用相同方法制得但是批次不同的实施例1～4中性墨水产品各4批次，与铅黄铜制普通型笔头#1、铅黄铜制半针管型笔头#2、铅黄铜制葫芦头型笔头#3互相匹配，每种笔头分别与3批次的可擦中性墨水进行配合，因此每个实施例得到12个可擦中性笔样品，同时与对照组1和对照组2对照；
(2)所述可擦中性笔在纸面上划出3道3cm长度的划痕，用橡皮将划痕擦拭掉，接着在划痕处再划出3道3cm长度的划痕，若每个实施例的12个样品均达到划痕清晰无间断均匀，则视为“好”；9～11个样品均达到划痕清晰无间断均匀，则视为“合格”；9个以下样品达到划痕清晰无间断均匀，则视为“不合格”。
5、储存稳定性的评定
(1)取采用相同方法制得但是批次不同的实施例1～4各4个批次，每个批次采用3个10g墨水的样品，样品放入恒温高温烘箱，在60℃下放置两周；然后取出待平衡到室温，观察墨水外观、流动情况、是否有明显粘度升高、颗粒凝聚等现象，同时与对照组1和对照组2进行对照；
(2)若每个实施例的12个样品均未发现粘度升高和颗粒凝聚，则视“好”；9～11个样品均未发现粘度升高和颗粒凝聚，则视为“合格”；9个以下样品未发现粘度升高和颗粒凝聚，则视为“不合格”。
6、清晰度与色度的评定按照如下标准：
(1)选取采用相同方法制得但是批次不同的实施例1～4中性墨水产品各4批次，与铅黄铜制普通型笔头#1、铅黄铜制半针管型笔头#2、铅黄铜制葫 芦头型笔头#3互相匹配，每种笔头分别与3批次的可擦中性墨水进行配合，因此每个实施例得到12个可擦中性笔样品，同时与对照组1和对照组2进行对照；
(2)若每个实施例的12个样品的清晰度与色度均比对照组1和对照组2好，则视“优+”；9～11个样品的清晰度与色度均比对照组1和对照组2好，则视为“优”；9个以下样品的清晰度与色度均比对照组1和对照组2好，则视为“良”
表1 产品性能指标
Figure PCTCN2016087594-appb-000004
以上公开的本发明优选实施例只是用于帮助阐述本发明。优选实施例并没有详尽叙述所有的细节，也不限制该发明仅为所述的具体实施方式。显然，根据本说明书的内容，可作很多的修改和变化。本说明书选取并具体描述这些实施例，是为了更好地解释本发明的原理和实际应用，从而使所属技术领域技术人员能很好地理解和利用本发明。本发明仅受权利要求书及其全部范围和等效物的限制。

Claims (10)

  1. 一种温敏可擦的中性墨水，其特征在于，包括由以下重量份计的组分制得：
    Figure PCTCN2016087594-appb-100001
    所述的分散剂为聚丙烯酸钠盐、聚丙烯酸钾盐、聚丙烯酸铵盐、多元醇脂肪酸酯中的一种或几种；
    所述的抑泡消泡剂为聚硅氧烷乳液、多元醇、多元醇醚、蜡分散乳液中的一种或几种。
  2. 根据权利要求1所述的一种温敏可擦的中性墨水，其特征在于，还包括0-5重量份的pH调节剂。
  3. 根据权利要求1所述的一种温敏可擦的中性墨水，其特征在于，所述的流变助剂为树脂类增稠剂，所述的树脂类增稠剂为纤维素类增稠剂、聚合物改性黏土类增稠剂或缔合型增稠剂中的一种或几种。
  4. 根据权利要求3所述的一种温敏可擦的中性墨水，其特征在于，所述的树脂类增稠剂的重量份为1-3重量份。
  5. 根据权利要求1所述的一种温敏可擦的中性墨水，其特征在于，所述的感温微胶囊颗粒为可逆热致消失微胶囊颜料，所述的可逆热致消失微胶囊颜料包括给电子显色性有机化合物(a)、受电子性化合物(b)和用于控制(a)和(b)的显色反应的反应介质。
  6. 根据权利要求5所述的一种温敏可擦的中性墨水，其特征在于，所述的可逆热致消失微胶囊颜料的消失温度为45-75℃。
  7. 根据权利要求1所述的一种温敏可擦的中性墨水，其特征在于，所述的保湿剂为N-甲基-2-吡咯烷酮、山梨醇、木糖醇、多元醇或聚乙烯丙二醇中的一种或几种。
  8. 根据权利要求1所述的一种温敏可擦的中性墨水，其特征在于，所述的润滑剂为聚乙烯吡咯烷酮或水溶性磷酸酯中的一种或两种。
  9. 一种如权利要求1-8所述的一种温敏可擦的中性墨水的制备方法，其特征在于，包括如下步骤：提供如权利要求1所述的各组分；所述的各组分加入到真空反应锅，搅拌均匀，搅拌速度200转/分，搅拌3小时，然后经过滤、检测得到所述的温敏可擦的中性墨水。
  10. 一种书写工具，其特征在于，具备容纳权利要求1-8所述的一种温敏可擦的中性墨水的轴筒和用于导出所述轴筒内的所述的温敏可擦的中性墨水的笔体。
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