Fibres; synthetic staple fibres, of aramids, not carded, combed or otherwise processed for spinning

HS v2022 Code: 550311

About fibres; synthetic staple fibres, of aramids, not carded, combed or otherwise processed for spinning

HS code 550311 covers the trade of synthetic staple fibers made from aramids, a type of high-performance synthetic fiber known for its exceptional strength, heat resistance, and chemical stability. These fibers play a crucial role in various industries, including aerospace, automotive, and defense, where their unique properties are highly valued. As a key component in the production of advanced textiles and composite materials, the 550311 industry is an integral part of the broader global economy, contributing to the development of innovative products and solutions across multiple sectors.

Production process

The production of synthetic staple fibers under HS code 550311 typically involves a multi-step process. First, the aramid polymer is synthesized through a series of chemical reactions. The polymer is then extruded through spinnerets to form continuous filaments, which are subsequently cut into short, staple-length fibers. These fibers may undergo additional processing, such as drawing, heat-setting, or surface treatment, to enhance their physical and chemical properties before being packaged and distributed for various applications.

Production inputs

The main inputs required for the production of 550311 synthetic staple fibers include the raw materials for aramid polymer synthesis, such as aromatic diamines and acid chlorides. Specialized machinery, such as extruders, cutters, and fiber-processing equipment, are also essential for the manufacturing process. Additionally, energy sources, such as electricity or steam, and quality control systems are necessary to ensure the consistent production of high-performance fibers.

Production outputs

The primary output of the 550311 industry is synthetic staple fibers made from aramids. These fibers are then consumed by various downstream industries, such as 550320 Fibres; synthetic staple fibres, of polyesters for the production of advanced textiles, 540233 Filaments; of aramids, other than sewing thread for the manufacture of high-strength composites, and 560311 Nonwovens; of man-made filaments, whether or not impregnated, coated, covered or laminated for the creation of specialized industrial fabrics and materials.

Revisions to 550311

Classification codes are adjusted frequently. The code may have been revised or replaced between system versions. The table below shows the history (newest to oldest) of the code 550311. The most recent 1 version of this code (550311) is in the HS v2022 system (this version):

This page shows the most recent version of code 550311.

Family tree for fibres; synthetic staple fibres, of aramids, not carded, combed or otherwise processed for spinning

    graph LR
    A["<a href='/classifications/hs/v2022/55'>55: Man-made staple fibres</a>"]
A --> B["<a href='/classifications/hs/v2022/5503'>5503: Synthetic staple fibres, not carded, combed or otherwise processed for spinning</a>"]
B --> C["<a href='/classifications/hs/v2022/550311'>550311: Fibres; synthetic staple fibres, of aramids, not carded, combed or otherwise processed for spinning</a>"]

    B --> D["<a href='/classifications/hs/v2022/550319'>550319: Fibres; synthetic staple fibres, of nylon or other polyamides other than aramids, not carded, combed or otherwise processed for spinning</a>"]
B --> E["<a href='/classifications/hs/v2022/550320'>550320: Fibres; synthetic staple fibres, of polyesters, not carded, combed or otherwise processed for spinning</a>"]
B --> F["<a href='/classifications/hs/v2022/550330'>550330: Fibres; synthetic staple fibres, acrylic or modacrylic, not carded, combed or otherwise processed for spinning</a>"]
B --> G["<a href='/classifications/hs/v2022/550340'>550340: Fibres; synthetic staple fibres, of polypropylene, not carded, combed or otherwise processed for spinning</a>"]
B --> H["<a href='/classifications/hs/v2022/550390'>550390: Fibres; synthetic staple fibres, of synthetic materials n.e.c. in heading no. 5503, not carded, combed or otherwise processed for spinning</a>"]

    

    %% Color coordination by level

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    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 level2
class B level4
class C level6
class D level6
class E level6
class F level6
class G level6
class H level6

  class C 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 C highlight