WO2017201640A1 - 一种离型纸版辊的电镀方法 - Google Patents

一种离型纸版辊的电镀方法 Download PDF

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Publication number
WO2017201640A1
WO2017201640A1 PCT/CN2016/082959 CN2016082959W WO2017201640A1 WO 2017201640 A1 WO2017201640 A1 WO 2017201640A1 CN 2016082959 W CN2016082959 W CN 2016082959W WO 2017201640 A1 WO2017201640 A1 WO 2017201640A1
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Prior art keywords
electroplating
plating
sulfuric acid
water
cleaning
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PCT/CN2016/082959
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English (en)
French (fr)
Inventor
孟凡祥
李福恩
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Heshan Seiko Platemaking Co Ltd
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Heshan Seiko Platemaking Co Ltd
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Priority to PCT/CN2016/082959 priority Critical patent/WO2017201640A1/zh
Priority to CN201680084069.4A priority patent/CN109072469A/zh
Publication of WO2017201640A1 publication Critical patent/WO2017201640A1/zh
Anticipated expiration legal-status Critical
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/56—Electroplating: Baths therefor from solutions of alloys
    • C25D3/58—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of copper
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/34—Pretreatment of metallic surfaces to be electroplated
    • C25D5/36—Pretreatment of metallic surfaces to be electroplated of iron or steel

Definitions

  • the invention relates to the technical field of plate surface treatment, in particular to a method for plating a release paper roll.
  • the surface haze requirement for the plate roll is very high, generally required to be 1.5-200.
  • the above requirements can only be met by electroplating.
  • the technology cannot be achieved in the same industry, and the stable process cannot be achieved.
  • the main reason is that the first method can not solve the accurate haze of the plate roller.
  • the uniformity requirement of the entire plate roller haze can not be solved.
  • Fourth, the stability of the plating solution cannot be solved. Applicants used a hanging plating process and a special plating solution to match, and tested a set of application methods suitable for electroplating release paper rolls. This process is a new attempt in the industry with breakthrough progress.
  • the invention provides The invention discloses a plating method for a release paper roll, which solves the problem that the fog haze is difficult to control and the haze uniformity is not good during the processing of the existing release paper roll.
  • the technical solution adopted by the present invention is:
  • a method for electroplating a release paper roll comprises the steps of: pre-plating pre-treatment and electroplating step, the pre-plating pretreatment comprising water washing, 5% dilute sulfuric acid washing, cleaning agent cleaning, water washing, 5% thinning Sulfuric acid cleaning, EDTA solution cleaning, water cleaning, acetone cleaning and drying step, characterized in that: the electroplating step plating composition is: phosphoric acid content 55 ⁇ 65%, dilute sulfuric acid solution 15 ⁇ 25%, pure water 5 ⁇ 15%, phosphorus 5 ⁇ 15%; current density is 28 ⁇ 35A/dm 2 during electroplating, the release paper roll rotates in the plating tank, the number of revolutions is 12 ⁇ 100 turns, the speed is 90mm/s, and the anode The distance is 20 ⁇ 35mm.
  • a plating process is further included, and the plating process includes ultrasonic degreasing, cathodic degreasing, acid activation, alkali activation, chrome plating, cleaning and polishing.
  • the cleaning agent is made by the following steps:
  • the laser cleaning agent contains 20% borax, 10% soda ash, 30% baking soda, 40% washing powder by weight.
  • the EDTA solution is made by the following steps:
  • the paper-type plate roll obtained by the electroplating method of the invention has a chrome hardness of 750-900 HV and a haze range of 0.5-300. Between, and the uniformity of haze is controllable, which solves the problem that the haze of the plate roller is difficult to control and the uniformity of haze.
  • a plating method for a release paper roll comprises the following steps: a plating process, a pre-plating pretreatment and a plating step;
  • the pre-plating pretreatment process further includes a rack plating process including ultrasonic degreasing, cathode degreasing, acid activation, alkali activation, chrome plating, cleaning, and polishing.
  • the pre-plating pretreatment includes water washing, 5% dilute sulfuric acid washing, cleaning agent cleaning, water washing, 5% dilute sulfuric acid cleaning, EDTA Solution cleaning, water washing, acetone washing and drying steps.
  • composition of the electroplating step of the electroplating step is: phosphoric acid content 60%, dilute sulfuric acid solution 20%, pure water 10%, phosphorous copper 10%; electroplating, current density is 30A/dm 2 , release paper roll in electroplating tank Internal rotation, the number of revolutions is 35 turns, the speed is 90mm/s, and the distance from the anode is 30mm.
  • cleaning agent is made by the following steps:
  • the laser cleaning agent contains 20% borax, 10% soda ash, 30% baking soda, 40% washing powder by weight.
  • the obtained release paper roll has a chrome plated hardness of 800 HV and a haze of 1.6.
  • a plating method for a release paper roll comprises the following steps: a plating process, a pre-plating pretreatment and a plating step;
  • the pre-plating pretreatment process further includes a rack plating process including ultrasonic degreasing, cathode degreasing, acid activation, alkali activation, chrome plating, cleaning, and polishing.
  • the pre-plating pretreatment includes water washing, 5% dilute sulfuric acid washing, cleaning agent cleaning, water washing, 5% dilute sulfuric acid cleaning, EDTA Solution cleaning, water washing, acetone washing and drying steps.
  • the electroplating step has the following components: a phosphoric acid content of 55%, a dilute sulfuric acid solution of 25%, a pure water of 15%, and a phosphorous copper of 5%.
  • the current density is 28 A/dm 2
  • the release paper roll is in the electroplating bath.
  • the number of revolutions is 100 turns, the speed is 90mm/s, and the distance from the anode is 35mm.
  • cleaning agent is made by the following steps:
  • the laser cleaning agent contains 20% borax, 10% soda ash, 30% baking soda, 40% washing powder by weight.
  • the obtained release paper roll has a chrome plated hardness of 900 HV and a haze range of 6.7-7.0.
  • a plating method for a release paper roll comprises the following steps: a plating process, a pre-plating pretreatment and a plating step;
  • the pre-plating pretreatment process further includes a rack plating process including ultrasonic degreasing, cathode degreasing, acid activation, alkali activation, chrome plating, cleaning, and polishing.
  • the pre-plating pretreatment includes water washing, 5% dilute sulfuric acid washing, cleaning agent cleaning, water washing, 5% dilute sulfuric acid cleaning, EDTA Solution cleaning, water washing, acetone washing and drying steps.
  • the electroplating step has the following composition: phosphoric acid content 65%, dilute sulfuric acid 15%, pure water 5%, phosphor bronze 15%; electroplating, current density is 35A/dm 2 , release paper roll in electroplating bath Internal rotation, the number of revolutions is 12 turns, the speed is 90mm/s, and the distance from the anode is 20mm.
  • cleaning agent is made by the following steps:
  • the laser cleaning agent contains 20% borax, 10% soda ash, 30% baking soda, 40% washing powder by weight.
  • the obtained release paper roll has a chrome plated hardness of 750 HV and a haze range of 0.7-0.8.
  • a plating method for a release paper roll comprises the following steps: a plating process, a pre-plating pretreatment and a plating step;
  • the pre-plating pretreatment process further includes a rack plating process including ultrasonic degreasing, cathode degreasing, acid activation, alkali activation, chrome plating, cleaning, and polishing.
  • the pre-plating pretreatment includes water washing, 5% dilute sulfuric acid washing, cleaning agent cleaning, water washing, 5% dilute sulfuric acid cleaning, EDTA Solution cleaning, water washing, acetone washing and drying steps.
  • the electroplating step has the following composition: phosphoric acid content of 57%, dilute sulfuric acid solution of 23%, pure water of 8%, and phosphorous copper of 12%; when electroplating, the current density is 28 to 35 A/dm 2 , and the release paper roll is Rotating in the plating tank, the number of revolutions is 30 turns, the speed is 90mm/s, and the distance from the anode is 25mm.
  • cleaning agent is made by the following steps:
  • the laser cleaning agent contains 20% borax, 10% soda ash, 30% baking soda, 40% washing powder by weight.
  • the obtained release paper roll has a chrome plated hardness of 845 HV and a haze of 5.0.
  • a plating method for a release paper roll comprises the following steps: a plating process, a pre-plating pretreatment and a plating step;
  • the pre-plating pretreatment process further includes a rack plating process including ultrasonic degreasing, cathode degreasing, acid activation, alkali activation, chrome plating, cleaning, and polishing.
  • the pre-plating pretreatment includes water washing, 5% dilute sulfuric acid washing, cleaning agent cleaning, water washing, 5% dilute sulfuric acid cleaning, EDTA Solution cleaning, water washing, acetone washing and drying steps.
  • the electroplating step has a composition of 62% phosphoric acid, 18% dilute sulfuric acid solution, 12% pure water, and 8% phosphorous copper.
  • the current density is 32 A/dm 2
  • the release paper roll is in the plating tank. Internal rotation, the number of revolutions is 45 turns, the speed is 90mm/s, and the distance from the anode is 32mm.
  • cleaning agent is made by the following steps:
  • the laser cleaning agent contains 20% borax, 10% soda ash, 30% baking soda, 40% washing powder by weight.
  • the obtained release paper roll has a chrome plated hardness of 860 HV and a haze of 1.1-1.4.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

一种离型纸版辊的电镀方法，属于版辊表面处理技术领域，包括以下步骤：包括镀前预处理和电镀步骤，所述电镀前预处理包括用水清洗、5％稀硫酸清洗、清洗剂清洗、水清洗、5％稀硫酸清洗、EDTA溶液清洗、水清洗、丙酮清洗和吹干步骤，所述电镀步骤电镀液的组成为：磷酸含量55～65％、稀硫酸溶液15～25％、纯水5～15％、磷铜5～15％；电镀时，电流密度为28～35A/dm 2，离型纸版辊在电镀槽内旋转，旋转圈数为12～100圈，转速90mm/s，与阳极的距离为20～35mm。采用该电镀方法制得的离型纸版辊镀铬硬度达到750-900HV，光雾度范围在0.5～300之间，且光雾度均匀度良好可控。

Description

一种离型纸版辊的电镀方法 一种离型纸版辊的电镀方法
技术领域
本发明涉及版辊表面处理技术领域，特别涉及一种离型纸版辊的电镀方法。
背景技术
在离型纸版辊加工生产中，对于版辊表面光雾度要求是非常高的，一般要求在 1.5-200 ，对于此种光雾度要求，只有通过电镀方法才可以满足以上要求。目前技术在同行根本无法达到，无法做到稳定的工艺，主要是因为一、解决不了版辊要求的准确光雾度；二、解决不了整个版辊光雾度的均匀度要求；三、解决不了外界温度、镀液温度、电流密度、时间与阳极版距离之间的各项工艺匹配问题；四、解决不了镀液的稳定性。申请人采用挂镀工艺加特殊镀液进行匹配，测试出一套适合电镀离型纸版辊的应用方法。此工艺在行业内是一种新尝试，具突破性的进展。
发明内容
本发明提供了 一种离型纸版辊的电镀方法，解决现有的离型纸版辊加工过程中光雾度难控制及光雾度均匀度不好的问题。
为解决上述技术问题，本发明采用的技术方案为：
一种离型纸版辊的电镀方法，包括以下步骤：包括镀前预处理和电镀步骤，所述电镀前预处理包括用水清洗、 5% 稀硫酸清洗、清洗剂清洗、水清洗、 5% 稀硫酸清洗、 EDTA 溶液清洗、水清洗、丙酮清洗和吹干步骤，其特征在于：所述电镀步骤电镀液的组成为：磷酸含量 55~65% 、稀硫酸溶液 15~25% 、纯水 5~15% 、磷铜 5~15% ；电镀时，电流密度为 28~35A/dm2 ，离型纸版辊在电镀槽内旋转，旋转圈数为 12~100 圈，转速 90mm/s ，与阳极的距离为 20~35mm 。
其中，优选地，所述镀前预处理工艺前还包括挂镀工艺，所述挂镀工艺包括超声波除油、阴极除油、酸活化、碱活化、镀铬、清洗和抛光处理。
其中，优选地，所述清洗剂是由以下步骤制成：
（ 1 ）量取 600ml 的浓硫酸，缓慢地加入 3L 的水中，摇匀，放置半小时后加入 1 升水，得硫酸溶液；
（ 2 ）取 500ml 激光版清洗剂，完全溶解到 3000ml 中，然后加入步骤（ 1 ）中的硫酸溶液中，即得；所述激光版清洗剂按重量百分比含有 20% 的硼砂、 10% 的纯碱、 30% 的小苏打、 40% 的洗衣粉。
其中，优选地，所述 EDTA 溶液是由以下步骤制成：
（ 1 ）把 50g 的乙二胺四乙酸二钠倒入 1000ml 热水中，搅匀至完全溶解；
（ 2 ）再加水 2000ml ，搅匀，即得。
本发明的有益效果：
采用本发明的电镀方法制得的离纸型版辊镀铬硬度达到 750-900HV ，光雾度范围在 0.5~300 之间，且光雾度均匀度良好可控，解决了版辊光雾度难以控制及光雾度的均匀度问题。
具体实施方式
下面对本发明的技术方案进行清楚、完整地描述，显然，所描述的内容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 1
一种离型纸版辊的电镀方法，包括以下步骤：包括挂镀工艺、镀前预处理和电镀步骤；
所述镀前预处理工艺前还包括挂镀工艺，所述挂镀工艺包括超声波除油、阴极除油、酸活化、碱活化、镀铬、清洗和抛光处理。
所述电镀前预处理包括用水清洗、 5% 稀硫酸清洗、清洗剂清洗、水清洗、 5% 稀硫酸清洗、 EDTA 溶液清洗、水清洗、丙酮清洗和吹干步骤。
所述电镀步骤电镀液的组成为：磷酸含量 60% 、稀硫酸溶液 20% 、纯水 10% 、磷铜 10% ；电镀时，电流密度为 30A/dm2 ，离型纸版辊在电镀槽内旋转，旋转圈数为 35 圈，转速 90mm/s ，与阳极的距离为 30mm 。
其中，所述清洗剂是由以下步骤制成：
（ 1 ）量取 600ml 的浓硫酸，缓慢地加入 3L 的水中，摇匀，放置半小时后加入 1 升水，得硫酸溶液；
（ 2 ）取 500ml 激光版清洗剂，完全溶解到 3000ml 中，然后加入步骤（ 1 ）中的硫酸溶液中，即得；所述激光版清洗剂按重量百分比含有 20% 的硼砂、 10% 的纯碱、 30% 的小苏打、 40% 的洗衣粉。
其中，所述 EDTA 溶液是由以下步骤制成：
（ 1 ）把 50g 的乙二胺四乙酸二钠倒入 1000ml 热水中，搅匀至完全溶解；
（ 2 ）再加水 2000ml ，搅匀，即得。
制得的离型纸版辊离纸型版辊镀铬硬度达到 800HV ，光雾度 1.6 。
实施例 2
一种离型纸版辊的电镀方法，包括以下步骤：包括挂镀工艺、镀前预处理和电镀步骤；
所述镀前预处理工艺前还包括挂镀工艺，所述挂镀工艺包括超声波除油、阴极除油、酸活化、碱活化、镀铬、清洗和抛光处理。
所述电镀前预处理包括用水清洗、 5% 稀硫酸清洗、清洗剂清洗、水清洗、 5% 稀硫酸清洗、 EDTA 溶液清洗、水清洗、丙酮清洗和吹干步骤。
所述电镀步骤电镀液的组成为：磷酸含量 55% 、稀硫酸溶液 25% 、纯水 15% 、磷铜 5% ；电镀时，电流密度为 28A/dm2 ，离型纸版辊在电镀槽内旋转，旋转圈数为 100 圈，转速 90mm/s ，与阳极的距离为 35mm 。
其中，所述清洗剂是由以下步骤制成：
（ 1 ）量取 600ml 的浓硫酸，缓慢地加入 3L 的水中，摇匀，放置半小时后加入 1 升水，得硫酸溶液；
（ 2 ）取 500ml 激光版清洗剂，完全溶解到 3000ml 中，然后加入步骤（ 1 ）中的硫酸溶液中，即得；所述激光版清洗剂按重量百分比含有 20% 的硼砂、 10% 的纯碱、 30% 的小苏打、 40% 的洗衣粉。
其中，所述 EDTA 溶液是由以下步骤制成：
（ 1 ）把 50g 的乙二胺四乙酸二钠倒入 1000ml 热水中，搅匀至完全溶解；
（ 2 ）再加水 2000ml ，搅匀，即得。
制得的离型纸版辊离纸型版辊镀铬硬度达到 900HV ，光雾度范围在 6.7-7.0 。
实施例 3
一种离型纸版辊的电镀方法，包括以下步骤：包括挂镀工艺、镀前预处理和电镀步骤；
所述镀前预处理工艺前还包括挂镀工艺，所述挂镀工艺包括超声波除油、阴极除油、酸活化、碱活化、镀铬、清洗和抛光处理。
所述电镀前预处理包括用水清洗、 5% 稀硫酸清洗、清洗剂清洗、水清洗、 5% 稀硫酸清洗、 EDTA 溶液清洗、水清洗、丙酮清洗和吹干步骤。
所述电镀步骤电镀液的组成为：磷酸含量 65% 、稀硫酸溶 15% 、纯水 5% 、磷铜 15% ；电镀时，电流密度为 35A/dm2 ，离型纸版辊在电镀槽内旋转，旋转圈数为 12 圈，转速 90mm/s ，与阳极的距离为 20mm 。
其中，所述清洗剂是由以下步骤制成：
（ 1 ）量取 600ml 的浓硫酸，缓慢地加入 3L 的水中，摇匀，放置半小时后加入 1 升水，得硫酸溶液；
（ 2 ）取 500ml 激光版清洗剂，完全溶解到 3000ml 中，然后加入步骤（ 1 ）中的硫酸溶液中，即得；所述激光版清洗剂按重量百分比含有 20% 的硼砂、 10% 的纯碱、 30% 的小苏打、 40% 的洗衣粉。
其中，所述 EDTA 溶液是由以下步骤制成：
（ 1 ）把 50g 的乙二胺四乙酸二钠倒入 1000ml 热水中，搅匀至完全溶解；
（ 2 ）再加水 2000ml ，搅匀，即得。
制得的离型纸版辊离纸型版辊镀铬硬度达到 750HV ，光雾度范围在 0.7-0.8 。
实施例 4
一种离型纸版辊的电镀方法，包括以下步骤：包括挂镀工艺、镀前预处理和电镀步骤；
所述镀前预处理工艺前还包括挂镀工艺，所述挂镀工艺包括超声波除油、阴极除油、酸活化、碱活化、镀铬、清洗和抛光处理。
所述电镀前预处理包括用水清洗、 5% 稀硫酸清洗、清洗剂清洗、水清洗、 5% 稀硫酸清洗、 EDTA 溶液清洗、水清洗、丙酮清洗和吹干步骤。
所述电镀步骤电镀液的组成为：磷酸含量 57% 、稀硫酸溶液 23% 、纯水 8% 、磷铜 12% ；电镀时，电流密度为 28~35A/dm2 ，离型纸版辊在电镀槽内旋转，旋转圈数为 30 圈，转速 90mm/s ，与阳极的距离为 25mm 。
其中，所述清洗剂是由以下步骤制成：
（ 1 ）量取 600ml 的浓硫酸，缓慢地加入 3L 的水中，摇匀，放置半小时后加入 1 升水，得硫酸溶液；
（ 2 ）取 500ml 激光版清洗剂，完全溶解到 3000ml 中，然后加入步骤（ 1 ）中的硫酸溶液中，即得；所述激光版清洗剂按重量百分比含有 20% 的硼砂、 10% 的纯碱、 30% 的小苏打、 40% 的洗衣粉。
其中，所述 EDTA 溶液是由以下步骤制成：
（ 1 ）把 50g 的乙二胺四乙酸二钠倒入 1000ml 热水中，搅匀至完全溶解；
（ 2 ）再加水 2000ml ，搅匀，即得。
制得的离型纸版辊离纸型版辊镀铬硬度达到 845HV ，光雾度 5.0 。
实施例 5
一种离型纸版辊的电镀方法，包括以下步骤：包括挂镀工艺、镀前预处理和电镀步骤；
所述镀前预处理工艺前还包括挂镀工艺，所述挂镀工艺包括超声波除油、阴极除油、酸活化、碱活化、镀铬、清洗和抛光处理。
所述电镀前预处理包括用水清洗、 5% 稀硫酸清洗、清洗剂清洗、水清洗、 5% 稀硫酸清洗、 EDTA 溶液清洗、水清洗、丙酮清洗和吹干步骤。
所述电镀步骤电镀液的组成为：磷酸含量 62% 、稀硫酸溶液 18% 、纯水 12% 、磷铜 8% ；电镀时，电流密度为 32A/dm2 ，离型纸版辊在电镀槽内旋转，旋转圈数为 45 圈，转速 90mm/s ，与阳极的距离为 32mm 。
其中，所述清洗剂是由以下步骤制成：
（ 1 ）量取 600ml 的浓硫酸，缓慢地加入 3L 的水中，摇匀，放置半小时后加入 1 升水，得硫酸溶液；
（ 2 ）取 500ml 激光版清洗剂，完全溶解到 3000ml 中，然后加入步骤（ 1 ）中的硫酸溶液中，即得；所述激光版清洗剂按重量百分比含有 20% 的硼砂、 10% 的纯碱、 30% 的小苏打、 40% 的洗衣粉。
其中，所述 EDTA 溶液是由以下步骤制成：
（ 1 ）把 50g 的乙二胺四乙酸二钠倒入 1000ml 热水中，搅匀至完全溶解；
（ 2 ）再加水 2000ml ，搅匀，即得。
制得的离型纸版辊离纸型版辊镀铬硬度达到 860HV ，光雾度 1.1-1.4 。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (4)

  1. 一种离型纸版辊的电镀方法，其特征在于包括以下步骤：包括镀前预处理和电镀步骤，所述电镀前预处理包括用水清洗、5%稀硫酸清洗、清洗剂清洗、水清洗、5%稀硫酸清洗、EDTA溶液清洗、水清洗、丙酮清洗和吹干步骤，其特征在于：所述电镀步骤电镀液的组成为：磷酸含量55~65%、稀硫酸溶液15~25%、纯水5~15%、磷铜5~15%；电镀时，电流密度为28~35A/dm2，离型纸版辊在电镀槽内旋转，旋转圈数为12~100圈，转速90mm/s，与阳极的距离为20~35mm。
  2. 根据权利要求1所述的一种离型纸版辊的电镀方法，其特征在于，所述镀前预处理工艺前还包括挂镀工艺，所述挂镀工艺包括超声波除油、阴极除油、酸活化、碱活化、镀铬、清洗和抛光处理。
  3. 根据权利要求1所述的一种离型纸版辊的电镀方法，其特征在于，所述清洗剂是由以下步骤制成：
    （1）量取600ml的浓硫酸，缓慢地加入3L的水中，摇匀，放置半小时后加入1升水，得硫酸溶液；
    （2）取500ml激光版清洗剂，完全溶解到3000ml中，然后加入步骤（1）中的硫酸溶液中，即得；所述激光版清洗剂按重量百分比含有20%的硼砂、10%的纯碱、30%的小苏打、40%的洗衣粉。
  4. 根据权利要求1所述的一种离型纸版辊的电镀方法，其特征在于，所述EDTA溶液是由以下步骤制成：
    （1）把50g的乙二胺四乙酸二钠倒入1000ml热水中，搅匀至完全溶解；
    （2）再加水2000ml，搅匀，即得。
PCT/CN2016/082959 2016-05-23 2016-05-23 一种离型纸版辊的电镀方法 Ceased WO2017201640A1 (zh)

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CN1718431A (zh) * 2004-07-07 2006-01-11 株式会社新克 形成微孔之前的被制版辊的电镀和研磨方法
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