Silk is often associated with luxury, comfort, and quality. Yet, there is a common misconception that "silk" is a uniform category. In practice, silk quality varies significantly, and the term alone says little about a product's properties.
To make an informed assessment of silk, one should understand three key factors:
1) type of silk, 2) quality grading (grade), and 3) momme (mm).
1) type of silk, 2) quality grading (grade), and 3) momme (mm).
🌿 1. What is Mulberry silk?
Mulberry silk is considered the most refined quality of silk and is produced by the silkworm Bombyx mori, which feeds exclusively on mulberry leaves.
The controlled production yields:
- Long, continuous fibers
- Smooth and uniform structure
- High strength combined with softness
- Natural luster
This makes Mulberry silk the premium reference in silk production.
At the same time, it is important to clarify that Mulberry silk alone does not guarantee high quality, as fiber quality can vary.
✨ 2. What does A–6A grade mean in silk?
Silk quality is often referred to using a grading system from A to 6A, where 6A represents the highest quality.
The grading assesses factors such as:
- Fiber length
- Purity and absence of defects
- Uniformity in filament structure
6A-grade silk is characterized by:
- Extra long and strong fibers
- Very smooth and uniform surface
- High wear resistance and durability
Important: Not all silk is graded on the A–6A scale
It is a common misconception that all silk can be placed on the A–6A scale.
In reality, this system primarily applies to high-quality filament silk, typically Mulberry silk.
In reality, this system primarily applies to high-quality filament silk, typically Mulberry silk.
Silk that falls outside of this may be:
- Short-fiber silk (spun silk)
- Silk with uneven filament structure
- Less processed or less selected raw material
These qualities are often not classified within the A–6A system and may therefore appear “unclassified” even if marketed as “silk”.
👉 This means that the designation “100% silk” does not necessarily indicate the quality level.
Is there Mulberry silk outside the A-scale?
Yes. Even within Mulberry silk, there are variations in quality.
Lower qualities may have:
- Shorter fibers
- Less uniform structure
- Reduced durability
These variants can be:
- Graded below A
- Or not classified within the system
👉 Therefore, it is crucial to consider both grade and momme, not just silk types.
⚖️ 3. What is momme (mm)?
Momme (mm) is a unit of measurement for silk's weight and density, and serves as an indicator of the fabric's quality and durability.
The higher the momme:
- The denser the weave
- The higher the wear resistance
- The more substantial and luxurious feel
Typical levels:
- 19 momme → light quality
- 22 momme → balanced standard
- 25 momme → high density and premium quality
🔬 How to assess silk quality holistically
To identify a high-quality silk product, the following should be considered collectively:
- Type of silk → Mulberry provides the best starting point
- Grade → 6A indicates top fiber quality
- Momme → a higher value indicates increased durability
A product that is only labeled “silk” or “Mulberry silk” does not provide sufficient information alone.
💎 Our quality standard
- 100% Mulberry silk
- 6A grade
- 25 momme
This combination ensures high comfort, uniform structure, and long lifespan.
Conclusion
Silk is a complex natural material with significant quality differences.
To ensure a product that combines comfort, durability, and aesthetics, one should be aware of:
To ensure a product that combines comfort, durability, and aesthetics, one should be aware of:
- That not all silk is included in the A–6A scale
- That Mulberry silk can vary in quality
- That grade and momme are crucial quality indicators
An informed assessment of these factors provides a much better basis for choosing the right silk product.
🔎 FAQ
Is all silk 6A quality?
No, only the highest quality is classified as 6A.
No, only the highest quality is classified as 6A.
Is there silk that is not graded?
Yes, much silk falls outside the A–6A system.
Yes, much silk falls outside the A–6A system.
Is Mulberry silk always high quality?
No, quality varies and must be assessed together with grade and momme.
No, quality varies and must be assessed together with grade and momme.
What is best – 22 or 25 momme?
25 momme is thicker and more durable, and is considered more exclusive.
25 momme is thicker and more durable, and is considered more exclusive.
