Solution dyeing, beck dyeing, Kuster continuous dyeing, and printing, compared on colorfastness, bleach resistance, cost, and where each one belongs.
For most buyers, how a carpet was dyed is an afterthought. They pick a color they like and move on.
With commercial carpet, the dye method deserves a closer look, because it affects the price, how the carpet looks after years of cleaning, and whether it survives a bleach spill or a sunny window. Two carpets with the same fiber, face weight, and backing can age very differently depending on how the color got into the yarn. Here’s how the common carpet dyeing methods work, and which one fits your space.
Carpet is dyed either before it’s tufted (pre-dyed, including solution dyeing) or after (post-dyed: beck, jet beck, Kuster continuous dyeing, and printing). Solution-dyed nylon is the most durable because the color is part of the fiber, so it resists bleach, sunlight, and harsh cleaners. Post-dyed carpet costs less and offers a wide color range, and it belongs in interior rooms without heavy cleaning or strong sun.
Every carpet dyeing method falls into one of two groups. Pre-dyed carpet gets its color before it’s tufted, either in the fiber itself or in the yarn. Post-dyed carpet is tufted undyed (the trade calls these greige goods) and colored afterward. You don’t need to master every variation, such as stock, skein, or space dyeing, but knowing the main methods makes a spec sheet much easier to read.
Solution dyeing adds color pigment to the liquid polymer before the fiber is extruded, so the color runs all the way through every strand. You can bleach it, scrub it, or expose it to years of sunlight without changing the color, because there’s no surface dye to strip away. You’ll also see it called solution-dyed nylon (SDN), pre-dyed, or fiber-dyed.
Solution-dyed nylon has become the standard for heavy commercial work, and olefin is solution-dyed by nature. Most of what we stock in our hospitality carpet and hotel carpet collections is solution-dyed nylon for exactly these reasons.
Yarn can also be dyed after it’s spun but before tufting, using methods like skein dyeing and space dyeing to create rich and multi-color effects. The dye is bonded into the finished fiber rather than built into it, so for bleach and UV it behaves more like post-dyed carpet than solution-dyed.
In beck dyeing, undyed carpet is loaded into a large vat, the beck, and circulated through a heated dye bath for several hours. The slow batch process spreads color evenly across the width, which helps prevent side-match problems at the seams. It’s well suited to solid colors and smaller runs, and beck-dyed carpet often costs a little more than other post-dyed carpet.
Some mills use pressurized jet beck equipment, which forces dye into the fibers faster than a standard atmospheric beck. That speed is where the “jet” name comes from, and the results are similar to conventional beck dyeing.
Continuous dyeing is often called Kuster dyeing, after the equipment maker. The carpet runs through a line where dye is applied across its full width and then steamed to set the color. It’s faster and more economical than batch dyeing at high volume.
The trade-off is color control. The line has to be monitored closely, because color drift between runs can make seams visible, so order your full quantity from one dye lot.
Printed carpet starts as a finished, light-colored carpet that runs under a print head (rotary screen, jet, or digital) to apply a pattern. It’s the most economical way to get a complex multi-color design. Because the color is a thin surface layer, it’s also the least lightfast of the methods here.
Here’s how the four main methods stack up on the specs that matter in commercial work.
| Spec | Solution-dyed | Beck-dyed | Continuous-dyed | Printed |
|---|---|---|---|---|
| Lightfastness | Excellent | Good | Good | Fair |
| Bleach resistance | Excellent; truly bleach-cleanable | Poor; will fade | Poor; will fade | Poor; will fade |
| Chemical cleaners | Excellent | Good | Good | Fair |
| Color range | More limited per run | Very wide | Very wide | Very wide, multi-color |
| Custom color minimums | Higher | Lower | Lower | Lower |
| Cost per square yard | Higher | Mid | Mid | Lowest |
The two rows that change buying decisions most often are bleach resistance and lightfastness. If your space sees either one, solution-dyed is the answer.
Instead of asking which method is best, ask which one is right for your space.
In an interior office with little sun and light traffic, solution-dyed benefits can go to waste. In a sunny, high-traffic atrium, the upcharge pays for itself.
If a spec sheet doesn’t mention the dye method, ask. If the supplier can’t tell you, that’s useful information too. Dye method is also separate from yarn construction; for that side of the spec, see what continuous filament means in commercial carpet.
Solution-dyed nylon usually costs more per square yard than beck-dyed or continuous-dyed nylon, often by about 10 to 25 percent depending on the style and the mill. For a floor that only needs to last 5 to 8 years in a room with little sun and no bleach, that premium is hard to justify. For a 10 to 15 year floor in a corridor, dining room, or sanctuary, solution-dyed almost always wins on total cost.
Buying wholesale narrows the gap. The mills here in Dalton run solution-dyed nylon at high volume, and we buy first-quality overruns and discontinued runs directly from them, which is how we sell at up to 80% off retail. For the rest of a durable spec, see how to spec commercial carpet for high-traffic areas.
Olefin (polypropylene) is always solution-dyed, so it offers strong fade and bleach resistance at a lower price than nylon. It’s less resilient and crushes faster, which makes it a better fit for commercial outdoor carpet and lighter traffic than for busy interior corridors.
The surest way to get the right dye method for your budget is to ask. Competitive Commercial Carpet is a mill-direct wholesaler in Dalton, Georgia, and we’ll tell you exactly how any style we stock was dyed.
Order free samples of solution-dyed and post-dyed styles with free shipping and no obligation, or call 706-526-4800 to talk through the trade-off for your space. Samples ship from Dalton in a few business days.
For commercial spaces with heavy cleaning or sunlight, solution dyeing, because the color is built into the fiber and resists bleach and fading. Beck-dyed and continuous-dyed carpets cost less and work well in interior rooms without bleach or strong UV.
Beck dyeing is a batch process in which undyed carpet circulates in a heated vat of dye for several hours. It produces even color, which helps with seam matching, and it’s common for solid colors and smaller runs.
Kuster dyeing is continuous dyeing, named for the equipment maker. Carpet runs through a line where dye is applied across its width and then steamed to set it. It’s efficient for large runs but needs careful color control from lot to lot.
Continuous-dyed carpet is colored after tufting, so its color can fade under bleach or UV. Solution-dyed carpet has pigment built into the fiber before the yarn is made, so the color holds up to bleach, sunlight, and harsh cleaners.
Usually, for any space with bleach cleaning, sun exposure, or a planned life of 10 years or more. For a low-traffic interior room with a shorter horizon, post-dyed carpet can be the better value.
Solution-dyed nylon is generally bleach-cleanable, which is why it’s common in hotels, restaurants, and healthcare. Always follow the manufacturer’s cleaning and warranty guidelines for the specific style.
Mill-direct commercial flooring wholesaler in Dalton, GA, the carpet capital of America. First-quality goods at up to 80% off retail, with free samples shipped nationwide. Serving the commercial trade since 2004.
