Bubble problem in the production of aqueous pigment paste

Because of adding of surfactant, the water based pigment paste is very easy to cause bubble, just like milk emulsion. During the opened dispersion, the dispersed machines that is high-speed grinding easily bring heat energy to the pigment paste, the bubble will be made when air goes into the pigment paste liquid.

The bubble problem is a common phenomenon that always troubles pigment paste manufacturers in the production management. These bubble will lead that the pigment particles within the pigment paste can not be well cut and shattered, and resulting in poor dispersion and production efficiency of aqueous pigment paste. This will increase energy consumption, so it is bad thing.

Generally, there are three ways to solve the bubbles:

One, to add defoamer to change the surface tension of pigment paste. But Shanghai Caison pigment paste engineers will not easily add too much defoamers, because it may lead to pattern cracks when clients use pigment paste for textile printing,  especially in the poor absorption of paper coating.

Two, to eliminate the bubble through the mechanical ways, this technology is being explored by us.

Three, to prevent air from entering the containers of water based pigment paste, but also need to reduce too much heat generated during the pigment paste producing. We have already begun to try to use this method in the daily production.

By the way, we have to know that not all bubbles need to be destroyed.Such as coffee, nearly all people who like coffee know that Italian coffee and fancy coffee are needed to add foam rich milk, because foam milk can bring a mellow taste for coffee. The making of milk foam is similar with the happen principle of pigment paste bubble.

水性色浆知识综述|Pigment paste knowledge

水性色浆又叫水性涂料色浆，又时候也被叫做水性色精,英文叫做"water based pigment paste"。要了解水性色浆，我们先看看色浆是什么？色浆是由颜料或颜料和填充料高度分散在漆料内而成的颜料制品，它是一种颜料浓缩浆，是将不同类别的颜料，通过活性剂对颜料表面处理和包裹等技术，经过精细化研磨和分散加工工艺研制而成的颜料分散制品。以油性溶剂为活性剂的称油性色浆；以树脂漆料为连接料的称树脂色浆；以纯水为介质添加表面活性剂分散而成的液体颜填料称就称为水性色浆。

根据水性色浆的用途不同又分为水性涂料色浆、水性胶带色浆，水性造纸色浆、纺织水性色浆、机械水性色浆、玩具水性色浆、乳胶制品水性色浆等；而根据使用水性色浆的工具不同，人们把水性色浆简单的分为手工用水性色浆和机用水性色浆等等。随着色浆市场竞争越来越激烈，行业分工越来越细，国家政策对环保要求越来越高，在家居、建筑、机械、纺织等领域，水性色浆正在逐步取代溶剂色浆或油性色浆发挥更多更大的着色应用。小到穿着打扮、日用生活、玩具娱乐等，大到桥梁、交通、建筑等，无不需要展示多彩又环保的颜色。

作为普通的水性色浆的消费者或直接用户，如何判定和衡量水性色浆品质的好坏呢？ 一般来说，我们可以从以下几个方面鉴别市场上水性色浆质量的高低好坏：

第一，水性色浆着色力。对于水性色浆的比较，着色强度是一个重要指标，它可以反映出色浆的色浓度、展色性能及颜料分散体稳定情况。数据是按颜色以达到国际标准深度（ISD）的 1/25 所需颜料色浆的份数来衡量，数值越小，着色力越高。数值代表需要水性色浆的克数加入白色基础水性漆中：乳胶水性漆中—白色基础漆钛白含量为 25% （1/25ST）。

第二，水性色浆的相容性。水性色浆与使用体系的相容性是影响色漆的浮色发花、絮凝和有些漆膜表面缺陷的关键。在使用水性色浆配色前，一定要做兼容性实验，一些助剂经常可以用来解决色浆与其他物料的相容性问题。一般来说，水性色浆只能适用于水性体系的着色。将水性色浆加入白漆中，一般配成中、浅色，涂抹在被涂物表面或仿被涂物表面，待快要凝结时，用手指研磨涂膜表层部分，干结后观察是否有明显的色差（目测）。如色浆的细度不够，分散性能不好均导致色浆展色性不好，会影响水性色漆的重现性。

第三，水性色浆的分散性。水性助剂对颜料颗粒的解絮凝程度决定了色浆分散体的大小和稳定性。一般来说，不可能达到完全解絮凝（颜料在水性体系中成原级粒子均匀稳定存在），只是以颜料颗粒的附聚体形式均匀分布在体系中。好的水性色浆的解絮凝程度是很高的，也就是说，附聚体是尽可能小的，这样才具有良好着色力、优异展色性和存储稳定性。如果水性色浆的分散性能不好，色浆中颜料絮凝体与基料中的填料颗粒的迁移性差异较大，而且比较容易体现出来，这种差异往往使颜料絮凝体不再均匀分布，当成膜因漆膜内部在温度、密度和表面张力上存在的微小差异，颜料絮凝体和漆基自然参与这种运动，颜料絮凝体随之分离，导致浮色和发花。

第四，水性色浆的耐光性和耐候性。色浆的耐光耐候性的测试是通过户外曝晒，但实际户外曝晒时间太长，一般水性色浆性能检测大多是通过仪器设备模拟测试。耐光性：使用户外丙烯酸乳胶漆做成 1/3ISD 和 1/25ISD 标准色样来进行曝晒。采用氙灯光源（ 1000W ）曝晒 72 小时，使用 1-8 级蓝羊毛尺与标准色样同时曝晒，得出色差来评级，1级为最差，8级为最好。

耐候性：使用户外丙烯酸乳胶漆做成 1/3ISD 和 1/25ISD 标准色样来进行曝晒。采用ATLAS人工老化仪曝晒500小时，使用ISD灰卡进行色差评级、1级为最差、5级为最好。

第五，水性色浆的耐化学介质性。水性色浆的耐化学介质性主要是耐酸、耐碱性，即耐化学迁移性，而该性能基本上取决于颜料本身。在户外用水性色浆中必须考虑这一因素。一般水性涂料也是要求耐酸耐碱，不要求耐有机溶剂和其它化学品。

耐酸性、耐碱性： 依据DIN16524 标准，将水性色浆烘干（105℃）分别置于 1% 的硫酸和2.5% 的氢氧化钠溶液中24小时后取出、洗涤来测定其耐酸、耐碱性。根据渗色和颜色的变化，依据5级标准来评定，达到5级表明耐酸、耐碱性优异，1级表明耐酸、耐碱性极差。

第六，水性色浆的颜料含量。色浆颜料含量可作为一种参考，不能作为评定水性色浆性能的主要指标。色浆的着色力与颜料含量并不是成简单的正比关系。相同的颜料含量，其细度不同着色力也有很大差异。为保证水性色浆着色力的稳定，色浆颜料含量是在一定范围内的变化值。当然水性色浆颜料含量高，细度够小，稳定性又好，当然是属于好的水性色浆，也可以叫做超浓缩水性色浆。

第七，水性色浆的细度。细度是反映色浆的着色力分散效果和储存稳定性的一个直观指标。一般对于同一种颜料水性色浆来说，粒径越小，其比表面积增大，因而遮盖能力也就增大了，着色力也就越高；细度越小，色漆光泽就越高，分散效果和储存稳定性就越好。当然，水性色浆的细度并不是越细越好，因为当粒子变小，其比表面积增大时，吸收的光能量增加，受破坏的程度也增加，导致其耐候性降低；并且粒径过小在涂料成膜干燥时，随着水分的析出，色浆一起向表面迁移，容易造成配色不准，与实物有色差。

第八， 水性色浆的质量稳定性。质量的稳定性一般是通过对生产配方—原材料—生产工艺—成品的严格控制，确保水性色浆的固体成分、细度、黏度、着色力、展色性、耐光耐候性等的一致性。可用测配色软件评估、Lab值及色差控制DE ﹤ 1.0 。一般水性色浆的贮存稳定性在室温 25 ℃左右时存放一年无明显的分层、结块、返粗、沉淀等缺陷，且着色力、展色性及其它物化性能没有明显降低。通常可以通过热储和冷冻实验来加速老化判定，通过开罐效果评估和测配色软件评定。

选择水性色浆时应重点考虑以上八个方面的因素，其他条件各个正规品牌的水性色浆基本都能达到而且差异不大。当然选择色浆时还应该从经济、环保等角度考虑，如：内墙色浆可选择耐候性差一些的色浆，同时内墙尽量不要选择铬黄等含重金属的色浆，而应选偶氮类、胺类等。

还有一些水性色浆的理化参数可供大家选择合适的色浆产品时作为参考，如密度、粘度、PH 值、光泽等。

密度：单位为克 / 立方厘米，测定法按GB/T1756 的规定进行。

粘度：反映色浆贮存稳定性的重要指标。（STM- Ⅲ斯托默粘度计）

PH 值： PHB-2 便携式PH 计测定水性高品质色浆体系的酸碱度（PH值）一般在 7-10之间，因此色浆在 PH值为7-10 的涂料体系中保色性、着色力及展色性等性能最佳。

细度和光泽：细度越小，光泽就越高，分散效果和储存稳定性就越好。

对于上述有关水性色浆的基础知识，希望对大家了解和使用水性色浆有所帮助。如果大家有需要了解更多有关水性色浆生产工艺、水性色浆调色方法、水性色浆环保标准、水性色浆MSDS等方面的知识，请大家百度或google上海彩生。

The Chairman of Shanghai Caison visited the clients in Zhejiang Province

From the second week in 2017, Shanghai Caison Chairman  Mrs. Yu and Caison Sales Manager Mrs. Zhang began to visit the clients in Zhejiang Province.

In early 2017 with sluggish economy and rising raw materials of water based pigment paste, Shanghai Caison paid so attention to market visiting in order to learn more about the status of Casion pigment paste dealers and get more valuable market information, then we can accurately grasp the development direction of waterborne pigment paste industry!

They visited six cities in three days and communicated with eight clients, the Chairman Mrs.Yu talked about the future development trend of water-based pigment paste with the clients, also about product positioning of CAISON pigment paste. They made full communication, the clients gave Mrs.Yu the latest market information about pigment paste products and textile industry, and hoped that Shanghai Caison would do more investment on brand promotion, and so when more users wanted to buy water-based pigment paste, they would think about Shanghai Caison Color.

One of the most important application areas of water based pigment disperison is textile printing and dyeing industry. During the three days visiting, Mrs.Yu and dealers all agreed that high quality aqueous pigment paste (textile printing aqueous printing paste), efficient after-sales service (timely communication by Wechat picture or video), safe and environmentally friendly product testing reports and company branding support are the key points for them. If they could do these well, even if the economic is downturn, people are always liking wearing beautiful clothes, textile printing and dyeing industry will be able to survive!

During the visiting, CAISON Sales Manager Mrs. Zhang communicated with some traditional dealers about cases of water based pigment paste in new application areas. Such as water-based metallic paint, water-based ink, soap coloring, electrophoresis paint tinting, and so on. After the strict environmental remediation from Chinese government, solvent coatings are rapidly being replaced by water-based coatings, water based paints engineers can solve the problem of coatings tinting by water-based pigment color paste.

We produce over 300 colors of water-based pigment pastes for different applications,they are bright colors, 1um average particle size, variety of convenient packaging specifications. We are getting more praise from clients in different industries.

上海彩生董事长 | 2017年伊始走访浙江市场

在2017年第2个星期，上海彩生董事长虞幸芝携销售经理张磊就开始市场走访！

在经济低迷，水性色浆原材料大涨的2017年初，上海彩生如此重视市场走访，在于更多的了解上海彩生的经销商的现状，获取市场最前沿的信息！准确把握水性色浆行业发展的方向！

三天走访六个城市，与八位重要客户进行了沟通，上海彩生董事长和客户就水性色浆未来发展趋势，上海彩生色浆的产品定位，都做了充分交流！客户也将最新的市场信息反馈给了虞总，希望上海彩生能在水性色浆产品的品牌宣传上做更多的投入！让更多的水性色浆用户想买高品质色浆，就会想到上海彩生！

水性色浆最重要的一个应用领域是纺织印染行业，在三天交流中，虞总和上海彩生的经销商都一致认为，优质的水性色浆（涂料印花色浆）品质，快捷的售后服务（可以微信图片视频及时沟通），提供安全环保的产品检测报告，企业品牌宣传支持！做好这些，即便经济再低迷，人们始终都是要穿漂亮的衣服，印染行业就一定会能生存！

在走访期间，销售经理张磊也和部分传统经销商一起交流水性色浆在新应用领域的案例！水性金属面漆，水性油墨，肥皂着色，电泳漆着色等新应用领域。在国家严格的环保整治之后，溶剂涂料正迅速被水性涂料所替代，水性色浆能为水性漆的工程师解决涂料着色问题！

上海彩生生产的三百种以上的各种颜色和不同应用体系的水性色浆，色泽鲜艳，平均颗粒粒径在一个微米左右，多包装规格方便使用，正在越来越受到不同行业客户好评！

Water based pigment color paste promotes the popular of art paints

What is art paints? Why can water based pigment color paste be widely used for art paints now?

With the development of Chinese economy and consumption ability improving,  the aesthetic requirement is also rising. The decoration requirement of living environment and household goods are beyond the general using  of buildings and daily necessities! In order to meet people's rising aesthetic requirements and taste, art paint is being popular.

Venetian plaster (also known as: Malay lacquer) is hot, wall art paint types are more and more rich. For these water-based art paints, quality water based pigment color pastes can provide higher color saturation coloring demand.

CAISON water based pigment paste is resin free system pigment paste. Through high quality imported dispersant, advanced technology and ophisticated equipment, pigments powders will be grinded to the fine particles by 1um of average particle diameter. That means the size of CAISON pigment paste is only one in eighty of quality flour particles.

No resin based pigment paste had a wide range of applications. It can be used for different art paints color matching, such as texture coatings, lacquer and slate paints.  Resin free water based pigment color paste makes art paints system and quality stability, because CAISON resin free pigment color paste has good compatibility, better weather resistance, strong coloring strength and excellent dispersion property.

At present, CAISON brand aqueous pigment paste is widely recognized and welcomed in Chinese water based coatings markets.

上海彩生董事长| 谈潘通流行色对制造企业的意义

2016年12月，世界知名的色彩管理公司潘通发布了2017年的世界流行色【草木绿】！

上海彩生是中国专业的水性色浆生产厂家，各种颜色的水性色浆产品达300种，自然非常重视关注潘通2017流行色的发布！

色彩虽然不是文字，但色彩却可以表达情感和内心的诉求！

潘通公司发布的2017流行色，其实就是当今全球社会人们情感和内心希望的引领。在全球经济低迷，互联网时代万千创新下，人们需要更安全更环保的生机与安宁！2017潘通流行色【草木绿】就在这样的经济形势下的一种时代精神体现！

流行色对于企业而言，意义在与对色彩市场的预先把控力！

水性色浆生产厂家上海彩生，根据潘通2017流行色发布，已经在水性色浆生产设备上做了调整，原本一条绿色水性色浆生产线，春节后将调整为两条，为绿色系列水性色浆产品专用生产线！

上海彩生先行一步做好预案！这个就是流行色对于色浆制造企业的指导意义和作用！

上海彩生︱供应商眼中诚信稳定的水性色浆生产厂家

2016年末的一天，江苏一家专业生产有机颜料的企业老板带着公司业务负责人和技术负责人，一行三人来到上海彩生南翔总部大楼，一是为了业务拜访，二是希望上海彩生实验室双方共同检测最近的一批供货颜料的质量，以同步检测数据，确保他们颜料厂实验室的质量检验数据的有效性！

在等待颜料检测的时间里，上海彩生虞总和这位在有机颜料行业耕耘几十年的企业老板进行了深入的交流，双方探讨了水性色浆行业目前面临的共同问题！虞总也从水性色浆生产厂家角度谈了对主要原材料有机颜料的品质和技术要求！

近年来，水性色浆行业和其他制造企业一样，面临的土地和劳动力成本过快增长，产品创新无法突破，环保部门逐年提高企业排放标准，整个行业经营利润大幅下滑！但这位有机颜料企业的老总，给上海彩生很高评价，在低迷的经济状况下，上海彩生给所有供货商的回款账期缩短，在合同约定的时间内都及时付款！采购原料数量稳定，整个有机颜料行业都给予上海彩生不错的企业评价！

有机颜料供应商都知道，上海彩生的有机颜料采购标准最高！上海彩生认为不合格的有机颜料，其他的水性色浆生产厂家可能认为满足他们的要求，依然会购买，水性色浆的主要原料就是有机颜料，颜料品质差，水性色浆的色光品质就不会鲜艳！上海彩生不会为了节约成本降低产品品质而购买不达标的原材料，同时上海彩生从不拖欠货款！所以，颜料供货商都认可上海彩生在水性色浆行业的领先地位！

三小时的等待之后，颜料的检测结果出来，这位老板看到自己工厂生产的这批颜料的确着色力偏低，承诺将尽快改进工艺，为上海彩生的高标准采购提供满意的有机颜料产品！也为水性色浆的高品质，做好原材料的保证！

Free download of electronic color swatch of CTH series pigment paste

Thank you for your support to Shanghai Caison in a long time, CAISON brand CTH series textile printing water based pigment paste color swatch is a manually pasting finished product brochure, its producing process is complexity and long time consuming, and geting user's praise and love!

In order to save costs and environmental protection, we will provide free download service of English electronic color swatch of water-based pigment paste (CTH Series) since January 1, 2017. You can obtain our electronic version of pigment paste color swatch in the following ways:

 1. Click on this link "http://www.caisoncolor.net/pigment-paste-color-swatch.html" to go directly to the download page and download.

 2. Directly ask our sales for it by trade@caisoncolor.com, shcaison (Skype ID), +86-15921379067 (WeChat ID and Whatsapp ID).

If any question or demand about it, please feel free to contact us.

Thank you for your attention.

2016.12.30