Featured guide · 14 min read
YoungSun Insights
Paper knowledge
for better decisions.
Practical material, converting, compliance and sourcing guidance for teams turning paper into finished products.
Grey Board papermaking at YOUNGSUN.
Choosing Grey Board
A practical guide to choosing board thickness and GSM for rigid boxes, with checks for flatness, grain direction and order specifications.Read the guideLatest guides
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02 · Culture paper guide
Woodfree Offset Paper vs C2S Art Paper: Which One Should You Specify?
Compare surface, print result, opacity, bulk, finishing and cost before selecting paper for books, brochures or commercial print.
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03 · Food wrapping paper guide
Greaseproof Paper vs Parchment Paper vs Wax Paper: A Food Packaging Buyer’s Guide
Choose food wrapping paper by grease resistance, heat exposure, release performance and intended-use compliance.
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04 · Packaging board guide
How to Choose Folding Boxboard for Premium Cartons
A practical FBB selection guide for carton performance, print, converting, samples and RFQs.
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05 · Packaging board guide
GC1 vs GC2 Coated Board: Which Carton Back Is Right?
Compare white-back and cream-back folding boxboard by appearance, print needs and carton application.
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06 · Food packaging guide
PE Coating for Food Packaging: How to Specify It
Match PE-coated paper or board to liquid, grease, temperature, forming and intended food-contact conditions.
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07 · Converting guide
Roll Width and Slitting Optimization for Paper Converting
Use cut plans, machine constraints and total operating cost to select a practical parent roll and slit pattern.
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08 · Carton design guide
Paperboard Stiffness in Carton Design: What Buyers Should Specify
Understand why stiffness, caliper, grain and carton structure matter more than GSM alone.
Read more →09 · Packaging board comparison
FBB vs SBS Board: How to Choose for Folding Cartons
Compare FBB and SBS by board construction, print target, stiffness, caliper and finished-carton performance.
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10 · Sustainable packaging guide
Sustainable Paperboard for US Brands: A Procurement Guide
Turn broad sustainability goals into evidence-backed paperboard specifications and defensible packaging claims.
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11 · Food packaging compliance
US Food Packaging Compliance: A Paper and Board Buyer’s Checklist
Define food, contact conditions and full construction before requesting US food-contact documentation.
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12 · Sourcing guide
How to Write a Paperboard Specification That Suppliers Can Quote
Create a repeatable paperboard RFQ covering material, format, conversion, acceptance and change control.
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13 · Global sourcing guide
Sourcing Coated Board from Asia: A Quality-Control Guide
Source coated board with comparable RFQs, representative samples, inspection criteria and repeatable supplier control.
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