How art supply buyers build and verify a colored liquid ink range: eight mineral-pigment shades, grade 4+ lightfastness, batch checks and pairing with bulk black ink.
Black ink moves most calligraphy programs, but color is where art supply retailers see repeat orders. A colored liquid ink range gives studios, schools and gift buyers a reason to add a second SKU line, and the margin question comes down to one property: whether shades stay true after weeks on a display shelf. Gumo Craftworks Co., Ltd. produces the Colored Liquid Ink Set for distributors who need documented color stability rather than a palette shifting between reorders.
What the Colored Liquid Ink Set Confirms Before the Price Talk
The Colored Liquid Ink Set (SKU GMO-LIQ-005) contains eight 30ml bottles: vermillion, ochre, azure, green, purple, white, gold and silver. Pigments are mineral-based with a natural binder, and every color is filtered and tested for concentration consistency. The full specification, current pricing and sample arrangement live on the Colored Liquid Ink Set product page.
Lightfastness is tested at grade 4+ under ISO 105-B02, and pigments meet ASTM D4236 safety requirements. Each shipment carries color reference charts and lightfastness test reports, so the shade standard approved at sampling stays documented through bulk orders. MOQ is 50 sets, lead time runs 30–45 days after sample approval, and FOB, CIF or DDP terms are quoted per inquiry.
Why Lightfastness Decides the Reorder
Display lighting is the test most colored inks fail. Dye-based formulations look identical in the bottle yet bleach under shop-window and studio light, so paintings fade within a season and a returned set costs more than the first sale. Mineral-based pigments hold shade under the same conditions. Buyers can see the difference before committing shelf space: pin one swatch of each formulation side by side in normal display light and compare after a few weeks.
Checking Batch Consistency on Arrival
Color drift between reorders is the second failure buyers report. Concentration is tested per color during production, and the reference charts included in every shipment give receiving teams a concrete check: paint a swatch from the new batch, dry the swatch next to the chart, and compare under the light used at sampling. A shipment arriving without documentation should be flagged before goods reach the shelf. The Colored Liquid Ink Set ships charts and lightfastness reports as standard, not on request.
Pairing Color with a Black Liquid Ink Program
Studios and school programs consume black ink at volumes where single bottles stop making sense. Bulk Calligraphy Liquid Ink covers the black-ink side in 1L and 5L containers, with pH held at 7.0–8.0, density tested per batch, MOQ at 50 containers and a 25–35 day lead time. Ordering both lines from one supplier simplifies freight and supports classroom kits: bulk black ink for practice volume, the colored liquid ink set for finished work and seasonal gift displays.
Custom Shades and Private-Label Packaging
Standard palettes rarely cover every program. Gumo Craftworks runs custom color matching from buyer reference artwork through an in-house pigment lab and color-matching station, useful for studios with a signature palette and for distributors differentiating a line. Private-label gift boxes and label printing are available, and the 50-set MOQ keeps a pilot run small before scaling. Buyers planning a custom shade should send reference swatches at inquiry so matching starts from a documented target.
Questions Buyers Ask Before a Colored Liquid Ink Order
How many shades belong in a first order? The eight standard colors cover gongbi-range work, including metallic gold and silver for decorative pieces and white for highlights. A first 50-set order can stay standard; a custom shade fits naturally on the reorder once sell-through is visible.
Which documents should accompany a shipment? Color reference charts and lightfastness test reports ship with every order of the Colored Liquid Ink Set. Receiving teams should treat missing paperwork as a flag and compare swatches against the charts before stock reaches the shelf.
Can the set carry a distributor brand? Private-label gift box and label printing options are confirmed on the product specification. Send artwork files at inquiry so box and label proofs move in the same cycle as the color sample.
Request Colors, Charts and a Quote
Both links above lead to confirmed specifications: the Colored Liquid Ink Set for the eight-color program and Bulk Calligraphy Liquid Ink for 1L and 5L institutional supply. Send shade, quantity, packaging and destination details to receive current pricing, lead time and a color sample arrangement.