第六集－水彩顔料（一）

相信好多朋友都不懂選擇，初時多數亂買，貪外觀靚或者選最經濟🤔

水彩分兩三種有管裝，像牙膏般支裝的但細細支，不過要看清楚，我們小學時用的有可能是廣告彩，大家的樣子都是差不多，用途就不一樣，廣告彩覆蓋力效強，而水彩是透明水彩，管裝水彩有12，24支，些牌子有70 或一百以上（左圖），需要另外配一個調色盒。第二種是固體水彩磚裝（中），一粒粒朱古力有糖紙包裝著，放在盒內的小格子裡，盒蓋就是調色盤，在空白位開顏色，我用完通常沒有洗(懶)，下次加水又可再用，有些人說會發霉😁😛還有液體水彩（右圖），細細樽墨水的外表，它可以加入去儲水筆用，或當Brush pen寫字😍

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管裝在調色盒用完要清洗嗎？是要的，因為乾後會變硬😨

管裝和磚裝都有分別的，當然兩種都可以用，管裝有好多牌子都好好用，有些好的管裝水彩，一個顏色單一支都要幾十至百幾元。

現在大多數人貪方便，有些同學都花得起錢便會買磚裝，磚裝那一個好用呢？越好用價錢就越貴，所謂一分錢一分貨😂😎 磚裝是固體水彩，即是硬的，有些看起來乾身亦有些是感覺粘粘的。那為什麼管裝乾了硬了難開色出來，磚裝可以輕易做到呢？它們本身混合了一些不同成份，其實它們是半乾狀態。

水彩顏料最大的特點是具有通透性和流動性。即係透明度同擴散力，每個品牌都有一定的個性和特點，色料和媒介的配方都或許不同，有的阿拉伯膠多一點，比較透明，有的牛膽汁多一點，比較擴散，即是化開的效果，還有顏料中含有很多輔助融化的媒介劑，例如蜂蜜或最常用的甘油，是有什麼用途？只要使用濕潤的畫筆就可以沾取顏色，質量好的專業顏料可以很輕鬆的得到濃郁的顏色，某些品牌學生級別的則可能會稍微費勁一點。而同一個品牌的不同顏色，由於色素本身的問題，色料研磨的顆粒粗細、沉澱表現，又很不一樣。而這些個性，往往體現在混色後的沉澱、透明度的變化。

這些色磚顏料的灌裝方式很多樣，有的是先將顏料製作成條狀，切割後塞進塑料格子里，有的則是將濕的顏料直接擠在格子裡並乾燥而成。格仔分半塊（下左圖）或者全塊，半塊顏料的色素量和5毫升的管狀顏。有部份品牌的色磚會跟一支貂毛筆😍有些是跟一支儲水筆，遲些我們再介紹水彩筆。

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有同學問管裝可以注入這種磚裝盒嗎？原本用管裝是配備水彩碟或調色盒，用完會將整個清潔，後來大家都越來越懶，管裝是可以注入格仔的，但乾後會變硬，自製還會有裂紋（上右圖），這樣顏料需要更多的水才能溶解的更好，它們會比磚裝水彩更需要用力沾取，否則顏色可能比較淺淡，這也會造成畫筆磨損較快一點。所以每次用之前要噴一噴水溶化先💧

另外試了同學送給的管裝水彩，新韓這個牌子未有色磚，我已把它入了在色磚盒，做了一個18色的色版，在入盒後一星期沾取還很好，等多一星期就一個月了，下次再分享。建議同學初學用管裝是為了大家可以容易辨別顏色🤓

因為管裝一看就知道是什麼顏色，而色磚比較濃，可能有6至8粒看起來非常深色（圖左）例如紫色藍色灰色，都像是黑色般。所以初學通常用管裝，磚裝價錢比較昂貴，一般好用的磚裝顏料由800至千幾，管裝幾十至幾百一盒，最貴百幾元一支，美國生產的下次再講，初期大家都不會捨得買，所以我嘗試了幾款較經濟的色磚，幾十至二三百元都要測試，終於找到一兩款可以上堂用，給同學多一個選擇😘

好了，下集再分享用過的顏料有什麽分別，再見。

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上一集－－第五集點解要畫畫

下一集－－第七集水彩顏料(二)

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