glass fiber fabric uses China
| Style | Yarn | Norminal Yarn count | Norminal Weight | Thickness | Structure | |||||
| warp | weft | warp | weft | |||||||
| warp | weft | inch | cm | gsm | osy | mm | ||||
| CW7628 | CC9-67*1 | CC9-67*1 | 43.2 | 30 | 17 | 12 | 210 | 6.2 | 0.2 | Plain |
| CW2523 | CC11-68*1*3 | CC11-68*1*3 | 30.5 | 20 | 12 | 8 | 400 | 11.8 | 0.35 | Plain |
| CW3732 | CC13-128*1 | CC13-128*1 | 45.7 | 33 | 18 | 13 | 430 | 12.7 | 0.43 | Twill |
| CW666 | CC11-68*1*3 | CC11-68*1*3 | 45.7 | 33 | 18 | 13 | 660 | 19.5 | 0.6 | Satin |
| CW3784 | CC13-128*1*2 | CC13-128*1*2 | 45.7 | 33 | 18 | 13 | 840 | 24.8 | 0.8 | Satin |
| CW3786 | CC13-128*1*3 | CC13-128*1*3 | 45.7 | 33 | 18 | 13 | 1300 | 38.3 | 1.1 | Satin |
| CW3788 | CC13-128*1*4 | CC13-128*1*4 | 45.7 | 33 | 18 | 13 | 1600 | 47.2 | 1.5 | Satin |
Steps Involved in the Manufacturing Process of Electronic-Grade Fiberglass Cloth
The manufacturing process is a highly precise and controlled series of steps designed to ensure the purity, consistency, and performance required for electronics. It can be broken down into four main stages:
Stage 1: Glass Melting and Fiberization
Batching: High-purity raw materials (primarily silica sand, limestone, and alumina) are carefully weighed and mixed to form the specific E-glass or S-glass composition.
Melting: The mixture is fed into a high-temperature (around 1600°C) electric furnace, where it melts into a homogeneous liquid glass.
Fiber Drawing: The molten glass flows through platinum-rhodium alloy bushings at the bottom of the furnace. Each tiny hole in the bushing produces a single continuous filament of glass, typically between 3-9 micrometers in diameter-thinner than a human hair.
Sizing Application: Immediately after formation, the fragile glass filaments are coated with a chemical "sizing" or "coupling agent." This is a critical step. The sizing protects the filaments from abrasion during weaving and, most importantly, ensures optimal bonding with the epoxy resin later in the PCB manufacturing process.
Stage 2: Yarn and Strand Formation
Strand Formation: Hundreds of these individual filaments are gathered together into a single strand as they are wound onto a high-speed drum.
Plying and Twisting: Multiple strands are twisted together to form a plied yarn with the required thickness (referred to by its yield, e.g., EC5.5, EC7) and strength for weaving. For some very fine fabrics, the yarn may be used untwisted.
Stage 3: Weaving
Warping: Thousands of yarn ends are aligned in parallel onto a large beam to create the "warp" (the longitudinal threads in the loom).
Weaving: The warp beam is mounted on a high-speed, precision loom (typically air-jet or rapier looms). The "weft" threads (filling threads) are interlaced with the warp threads in a specific pattern (plain, twill, satin) to form the continuous roll of glass fabric.
Stage 4: Post-Weaving Treatment
Heat Cleaning and Treatment: The woven cloth, which still contains the organic sizing, is passed through a high-temperature oven. This process burns off the initial sizing and cleans the fabric to remove any contaminants.
Finishing (Silane Treatment): After heat cleaning, a new, specialized finish(often a silane-based coupling agent) is applied. This finish is specifically chosen to be chemically compatible with the epoxy resin used in PCBs, creating a strong, durable bond in the final laminate.
Inspection and Rolling: The finished cloth is automatically inspected for defects like holes, thick/thin spots, or weaving errors. It is then rolled onto cardboard cores, labeled by style (e.g., 1080, 2116), and prepared for shipment to laminate manufacturers.
What Services Do We Provide?
A:Free samples available.
Large inventory with short delivery times and various styles to choose from.
OEM and ODM orders accepted, including custom logo printing and designs.
We strive to offer high-quality products at factory prices with fast response and reliable service.
Our skilled workers and professional foreign trade team ensure exceptional service.
