Silk yarn and yarn spun from silk waste; silk-worn gut

CPC v2.1 Code: 2631

About silk yarn and yarn spun from silk waste; silk-worn gut

cpc code 2631 covers the production of silk yarn and yarn spun from silk waste, as well as silk-worn gut. This industry plays a vital role in the global textile and apparel supply chain, providing high-quality raw materials for the manufacture of luxurious fabrics and garments. As a key component of the broader 13 Textilesindustry, the silk yarn and waste sector contributes significantly to the economic output and employment in many countries around the world.

Production process

The production of silk yarn and yarn spun from silk waste involves several key steps. First, the raw silk cocoons are harvested and the silk fibers are carefully extracted. These fibers are then spun into yarn using specialized machinery. For silk waste, the leftover materials from silk production are collected, cleaned, and processed into yarn through a similar spinning process. The silk-worn gut is obtained from the digestive tracts of silkworms and undergoes a unique preparation method before being spun into yarn.

Production inputs

The main inputs required for the silk yarn and waste industry include raw silk cocoons, silk waste materials, and specialized machinery for spinning and processing the fibers. Additionally, the industry relies on a skilled workforce, access to reliable energy sources, and efficient transportation networks to move the raw materials and finished products.

Production outputs

The primary outputs of this industry are various types of silk yarn, including plain silk yarn, yarn spun from silk waste, and silk-worn gut yarn. These outputs are then consumed by the 13 Textiles industry, where they are woven or knitted into high-end fabrics for use in luxury apparel, home furnishings, and other textile products.

Family tree for silk yarn and yarn spun from silk waste; silk-worn gut

    graph LR
    A["<a href='/classifications/cpc/v2-1/2'>2: Food products, beverages and tobacco; textiles, apparel and leather products</a>"]
A --> B["<a href='/classifications/cpc/v2-1/26'>26: Yarn and thread; woven and tufted textile fabrics</a>"]
B --> C["<a href='/classifications/cpc/v2-1/263'>263: Textile yarn and thread of natural fibres</a>"]
C --> D["<a href='/classifications/cpc/v2-1/2631'>2631: Silk yarn and yarn spun from silk waste; silk-worn gut</a>"]

    C --> E["<a href='/classifications/cpc/v2-1/2632'>2632: Yarn of wool, containing 85% or more by weight of wool, not put up for retail sale</a>"]
C --> F["<a href='/classifications/cpc/v2-1/2633'>2633: Yarn of wool, containing less than 85% by weight of wool, not put up for retail sale</a>"]
C --> G["<a href='/classifications/cpc/v2-1/2634'>2634: Yarn of wool, not put up for retail sale; yarn of fine or coarse animal hair or of horse hair (including gimped horsehair yarn), whether or not put up for retail sale</a>"]
C --> H["<a href='/classifications/cpc/v2-1/2635'>2635: Cotton sewing thread</a>"]
C --> I["<a href='/classifications/cpc/v2-1/2636'>2636: Cotton yarn (other than sewing thread), containing 85% or more by weight of cotton</a>"]
C --> J["<a href='/classifications/cpc/v2-1/2637'>2637: Cotton yarn (other than sewing thread), containing less than 85% by weight of cotton</a>"]
C --> K["<a href='/classifications/cpc/v2-1/2638'>2638: Yarn of vegetable textile fibres other than cotton (including flax, jute, coir and true hemp); paper yarn</a>"]

    D --> L["<a href='/classifications/cpc/v2-1/26310'>26310: Silk yarn and yarn spun from silk waste; silk-worn gut</a>"]


    %% Color coordination by level

    classDef level1 color:#000,fill:#a8f9ff,stroke:#333,stroke-width:2px
    classDef level2 color:#000,fill:#e0a458,stroke:#333,stroke-width:1px
    classDef level3 color:#000,fill:#419d78,stroke:#333,stroke-width:1px
    classDef level4 color:#000,fill:#c04abc,stroke:#333,stroke-width:1px
    classDef level5 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef level6 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



  %% Apply classes
  class A level1
class B level2
class C level3
class D level4
class E level4
class F level4
class G level4
class H level4
class I level4
class J level4
class K level4
class L level5

  class D highlight

  %% class A level1
  %% class B,C level2
  %% class D,E,F,G,H,I level2
  %% class J,K,L,M,N,O,P level3
  %% class D highlight