How to Determine the Quality of Handmade Carpets

Handmade carpets undoubtedly rank among the major investments in home furnishings. Whether purchasing for practical use or as a collectible, determining a carpet's quality becomes one of the most pressing concerns. 

In fact, the level of knowledge about carpets is directly proportional to the maturity and professionalism of the carpet market. In Europe, the tradition of collecting and using handmade carpets dates back at least to the 14th century. We can see depictions of carpets in early Western paintings, including works by Van Eyck, Jerome, and Rembrandt. For the home, carpets are not merely functional decorations but also expressions of the owner's beliefs and spiritual pursuits. In Western countries, laying handmade carpets has long been a standard of living for middle-class and above households.

This article attempts to summarize key points for judging handmade carpet quality from the professional perspective of carpet makers. It does not address more basic questions, such as how to distinguish handmade from machine-made carpets or how to identify whether a carpet is made of wool or synthetic fibers.

First, we must adopt the correct attitude toward handmade carpets. A carpet is a comprehensive work of art, encompassing processes like pattern design, drafting, dyeing, spinning, weaving, and flat washing. Consequently, its quality is determined by the combined assessment of raw materials and craftsmanship techniques. While these techniques can be evaluated individually, ultimately, a carpet is an indivisible whole.

Below, we examine the elements determining carpet quality one by one:

1) Pattern:

This is the carpet's first impression. When considering a purchase, size, primary color scheme, and the pattern's design and style are primary factors. Just as Bach's compositions contain profoundly moving classics for classical music lovers, the visual artistry of a carpet hinges on the design's origins and evolution, which determine the pattern's quality.

From the outset, we established our design direction: the most exquisite classical Chinese patterns in history. To be precise, we do not create new designs but strive to faithfully restore originals. This process involves reconstructing obscured details from ancient rugs or making localized modifications—such as replacing dragon motifs in early Qing dynasty carpets with scrollwork patterns. Classics are refined through centuries of historical sedimentation; their allure never fades with time. The beauty of classic works is objective.

2) Raw Materials:

Wool, with its unique physical and chemical properties, has been the most traditional material for handwoven carpets since ancient times. Just as furniture wood varies widely in type and value, wool also comes in different grades—though few possess specialized knowledge about it. For carpets, wool must be durable, resilient, and lustrous. Thus, premium carpet wool belongs to the coarse wool category (fiber diameter exceeding 40 microns). The fibers are long and tough, free from dry, brittle strands, and possess a natural sheen.

To assess a carpet's wool quality, examine it closely, observing and touching the surface. Dry, brittle wool resists dyeing, appears grayish-white, and lacks elasticity. Excessively soft pile may indicate overly fine fibers, compromising durability. Short fibers lead to frequent yarn breaks, causing shedding. Viewing the pile from different angles reveals that fine wool imparts a silky sheen in one direction, while inferior wool appears dull and unclean.

Chemical treatments to enhance wool carpet sheen are common in many factories. This process typically involves chlorine stripping the scales from wool fibers, producing an unnatural, “fishy” sheen. Careful sniffing often reveals a lingering chlorine odor from such treated carpets.

3) Pattern Drafting:

Carpet designs must first be drafted into blueprints to serve as weaving templates. The same design pattern yields distinct blueprints under different drafters, highlighting the artistry of pattern drafting. A well-crafted blueprint resembles a master painter's work—fluid in detail and vibrant with life. Conversely, poorly drafted patterns lack vitality, appearing rigid and lifeless. Appreciation for this aspect mirrors that of fine art—it requires diligent study of numerous works and cultivates relative judgment over time.

4) Dyeing:

Chemical dyes emerged as a byproduct of the petrochemical industry's development 150 years ago, swiftly replacing natural dyes. Consequently, traditional natural dyeing techniques have largely vanished, now classified as intangible cultural heritage. In the labor-intensive field of handmade carpets, few producers today use 100% natural dyes. Most employ chemical dyes, or a combination of natural and chemical dyes. Some even resort to deception: after dyeing with chemicals, they apply a natural dye (like walnut husk) as an over-dye to achieve a “natural” effect.

No matter how advanced chemical dyes may be, their visual impact cannot compare to that of natural dyes. To draw an analogy, a plastic apple, even if crafted with remarkable realism, cannot possess the vibrant vitality of a fresh apple. For carpets over 150 years old, natural dyeing constitutes a significant aspect of their value.

5) Spinning:

The creation of a single thread relies on an extensive system—from the wool scouring mill to the spinning mill. Before the Industrial Revolution, spinning was entirely manual. The resulting uneven thickness and inconsistent tension of hand-spun yarn imparted a rustic quality that makes replicating the character of antique rugs challenging.

However, the time-consuming and inefficient nature of hand-spun yarn became unsustainable. For a few years, in pursuit of an antique effect, we wove carpets entirely with hand-spun yarn. Looking back, it was a truly mad period, and the carpets produced during those years are exceptionally unique.

Hand-spun yarn is easiest to identify by examining the rug's reverse side. The uneven thickness of hand-spun yarn creates numerous natural curves in the weft threads running vertically.

6) Weaving:

Traditional handwoven carpets are knotted, with the double warp knot being the most durable—carpets can last centuries without knots unraveling. Double warp knots are categorized by shape: the horseshoe knot (also called the “scissors knot”) and the figure-eight knot. Turkish carpets predominantly use the horseshoe knot, while Chinese carpets and most Persian carpets employ the figure-eight knot.

Tibetan carpets employ the rod-through knot, a unique technique emerging in the early Qing Dynasty. While significantly faster to weave than horseshoe or figure-eight knots, it struggles to render intricate patterns. Carpets from Nepal and parts of India utilize this method. Examining the carpet's back reveals thick, multi-strand yarns between the weft threads, lacking the delicate yet sturdy appearance of double-warp knots.

Weaving is a time-consuming, skilled craft. Chinese classical carpets, with their painterly design styles, employ techniques unseen in other carpet-making traditions—such as “pressed head” and “half head” knots—to achieve fluid, intricate curves like petals or foliage. These weaving techniques require careful examination of the rug's reverse side to be discerned. Rugs employing these techniques exhibit patterns with greater expressive vitality and fluidity.

7) Post-Processing:

After weaving concludes on the loom, the rug enters the post-processing stage, primarily involving steps like flattening, washing, and trimming. Flattening ensures the carpet surface lies flat, achieved using specialized machinery. The technique of grooving the flattened surface with electric shears was invented 100 years ago by Tianjin Carpet Factory to better define pattern curves. However, this method suits thicker carpets and is unsuitable for soft, thin ones. Washing is crucial for cleaning the carpet and also serves as a test for dye fastness. Inferior chemically dyed carpets often exhibit color bleeding or fading after washing, which can be clearly observed in the warp and weft threads. Drying, polishing, and trimming the fringe and carpet surface constitute the final steps in carpet production. Professional finishing ensures the carpet emerges clean, fresh, and harmoniously unified.

8) Age:

First, we must clarify that the value of antique carpets is not determined by their age alone, but by the raw materials used in their weaving and the techniques applied. An antique Kangxi-era carpet with elegant patterns and fine craftsmanship is undoubtedly a rare treasure, while a late Qing-era carpet with mediocre designs and chemical dyes would hardly be considered worthy of a refined setting. In the 1980s, the carpet industry witnessed a “Renaissance” movement. A handful of the world's top manufacturers returned to traditional carpet-making techniques, striving for perfection in patterns, dyeing, materials, and weaving to achieve classical excellence. Carpets crafted in this manner now approach the standards of antique masterpieces from centuries past.

Numerous other details influence carpet quality, such as weave structure, thickness, softness, hardness, and yarn twist. Due to space constraints, these will not be elaborated upon here.

Perhaps selecting the right carpet is akin to finding a soulmate—it can be difficult, yet it can also be easy: simply approach it with heartfelt discernment.