This is called clay coated kraft and super calendared kraft. This is a surface sized paper on both sides with a matt finishing. This is suitable for printing all kinds labels and suitable for all printing techniques. This is not suitable for bar code printing.
CCK / SCK is available in 60 GSM, 80 GSM, 100GSM and 120 GSM.
The 120 GSM is especially suitable and supports digital printing as it absorbs the heat generated during printing. The 80 GSM and 100 GSM are suitable for printed area with complicated die purchasing, where only the face paper or printed area is purchased by knife without cutting the base or release paper.