📋 Schema JSON
```json { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How is silk quality graded for fan manufacturing?", "acceptedAnswer": { "@type": "Answer", "text": "Silk quality for fan manufacturing follows the Chinese national standard GB/T 1797 with grades from 2A to 6A (highest). The grading criteria: (1) Fiber length — 6A grade silk has continuous filament length >1,000 meters without breaks; lower grades have shorter, broken filaments. (2) Evenness — measured by coefficient of variation (CV%); 6A requires CV <12%, meaning uniform thread thickness throughout. (3) Cleanness — defects per 100g of silk; 6A allows <10 minor defects, 2A allows up to 80. (4) Luster — 6A silk has a natural, uniform pearl-like sheen; lower grades appear dull or uneven. (5) Color — 6A is naturally creamy white without chemical bleaching; lower grades may have yellowing. For fan manufacturing specifically: (1) Fan surface silk requires 4A minimum for acceptable uniformity, (2) Premium custom fans use 5A-6A silk, (3) Decorative/tassel silk can use 3A-4A. Eastfanart uses 5A-6A mulberry silk for premium custom orders and 4A for volume production." } }, { "@type": "Question", "name": "What are the signs of a well-made silk fan vs a poorly-made one?", "acceptedAnswer": { "@type": "Answer", "text": "Quality indicators for silk fans: Ribs — (1) Material: high-quality uses aged bamboo (3+ years), sandalwood, or rosewood; low-quality uses green bamboo (prone to warping) or cheap composite, (2) Finish: high-quality ribs are hand-sanded smooth with no splinters, uniform color; low-quality has rough edges, splinters, or painted-over defects, (3) Flexibility: high-quality ribs open and close smoothly 100+ times without loosening; low-quality becomes loose or sticks after 20-30 uses. Silk surface — (1) Tension: high-quality silk is stretched taut without wrinkles or sags; low-quality has visible wrinkles or loose areas, (2) Print/paint quality: high-quality has sharp, color-accurate artwork with no bleeding; low-quality has fuzzy edges, color mismatch, or peeling, (3) Double-sided: premium fans have artwork on both sides or a finished reverse; cheap fans have exposed thread on reverse. Rivet: High-quality uses brass or copper rivet that allows smooth rotation without loosening; low-quality uses iron (rusts) or plastic. Smell: High-quality silk and bamboo have a subtle natural scent; low-quality may smell of chemicals (formaldehyde, glue)." } }, { "@type": "Question", "name": "How durable are silk fans? What is their expected lifespan?", "acceptedAnswer": { "@type": "Answer", "text": "Silk fan lifespan depends on quality grade and usage: Display/collectible use (rarely opened): decades — 6A silk on aged bamboo or rosewood, stored in a dry environment away from direct sunlight, can last 30-50+ years with minimal degradation. Occasional use (events, photos): 5-10 years — 4A-5A silk, opened 50-100 times/year. Regular daily use: 1-3 years — standard grade, high-frequency opening/closing causes rib loosening and silk wear at fold lines. Key degradation factors: (1) Humidity — silk absorbs moisture and can develop mold in >70% RH; store with silica gel packets, (2) UV exposure — direct sunlight fades silk colors within months; display in indirect light, (3) Mechanical wear — each open/close cycle stresses the fold lines; the '1,000-fold rule' (silk fatigues after ~1,000 folds), (4) Pests — silverfish and carpet beetles eat silk; cedar storage or periodic inspection prevents damage. For corporate gifts expected to be displayed (not used), a 5A+ silk fan with proper storage instructions should maintain its appearance for 10+ years." } }, { "@type": "Question", "name": "What silk types are used in fan manufacturing and which is best?", "acceptedAnswer": { "@type": "Answer", "text": "Silk types for fan manufacturing ranked: #1 Mulberry silk (Bombyx mori) — the gold standard. Cultivated silkworms fed exclusively on mulberry leaves produce the longest, finest, most uniform fibers. Natural creamy white color that takes dye beautifully. 90%+ of premium fans use mulberry silk. #2 Tussah silk (wild silk) — produced by wild silkworms feeding on oak leaves. Naturally tan/beige color, coarser texture, shorter fibers. More 'rustic' aesthetic, less uniform. Used in some traditional-style fans for the natural color variation. #3 Eri silk (peace silk) — the silkworm is not killed during harvesting (Ahimsa silk). Softer, wool-like texture, matte finish. Premium niche market — ethical positioning. Not commonly used in fans due to shorter fibers and higher cost. #4 Synthetic 'silk' (polyester) — NOT silk, but commonly sold as 'silk-like.' Identifiable by: burn test (polyester melts; real silk smells like burning hair), price (genuine silk fan cannot be made for <$3 FOB), texture (polyester feels slippery-cold; silk warms to touch). Eastfanart uses 100% mulberry silk for all products; synthetic alternatives available only by explicit request for budget applications." } } ] } ```AI辅助声明：基于中国丝绸质量标准GB/T 1797及行业经验编写。