2025 Từ nguyên liệu thô đến thành phẩm: Hé lộ Quy trình Kiểm soát Chất lượng 360° của Nhà máy Túi Bánh mì​

Khi bạn nhặt một ổ bánh mì mới nướng, túi bánh mì là cái đầu tiên của nó “người bảo vệ”—and behind this simple packaging lies a strict quality journey that starts with Từ nguyên liệu thô to finished products. Hệ thống chất lượng 360° của nhà máy chúng tôi, built around the principle of Từ nguyên liệu thô to end, đảm bảo mọi túi đều an toàn, bền chặt, and up to global standards. Let’s break down the key steps of this Từ nguyên liệu thô-to-finished process!​

🌱 1. Raw Material Selection: The Core of “From Raw Materials to Finished” Quality​

Raw materials are the starting line of our Từ nguyên liệu thô-driven quality control—we focus on two main options: food-grade PE Và kraft paper, both screened to meet the highest safety benchmarks.​

For Food-Grade PE (Polyetylen):​

✅ Only source from suppliers with FDA & SGS certifications—this is the first checkpoint in our Từ nguyên liệu thô quá trình (global food safety standards non-negotiable).​

✅ 3-step inspection before factory entry (a must for Từ nguyên liệu thô chất lượng):​

1. Check certification docs to confirm compliance with food contact material rules (no shortcuts in Từ nguyên liệu thô screening).​

2. Laboratory sensory test: No strange smells, sự đổi màu, or impurities (even a tiny black spot = rejection—we don’t compromise on Từ nguyên liệu thô chất lượng).​

3. Migration test: Soak PE film in simulated food solution (VÍ DỤ., acetic acid for acidic foods) at 40°C for 24h—test for heavy metals/plasticizers (critical for Từ nguyên liệu thô sự an toàn).​

✅ Must meet China’s GB 4806.7-2016 standard (food contact plastics) to move from Từ nguyên liệu thô stage to production.​

For Kraft Paper (Premium Bread Packaging):​

🌿 Prioritize 100% recycled fibers with FSC certification—eco-friendliness is part of our Từ nguyên liệu thô criteria (no toxic additives allowed).​

✅ Random sampling tests (key for Từ nguyên liệu thô consistency):​

1. Basis weight: Minimum 80g/m² (prevents tearing when holding bread—durability starts at Từ nguyên liệu thô).​

2. Moisture content: 8%-12% (too wet = mold; too dry = brittleness—we control this at Từ nguyên liệu thô stage).​

3. Grease resistance test: Apply edible oil, observe 24h—no seepage allowed (seepage ruins bread texture, so we eliminate this risk at Từ nguyên liệu thô).​
   

🎨 2. Printing Ink Testing: An toàn & Beautiful—A Link Between From Raw Materials and Finished​

After passing Từ nguyên liệu thô checks, the next step is printing—and ink safety is as critical as raw material quality. We follow a “zero-toxic ink” rule to keep the Từ nguyên liệu thô-to-finished chain safe.​

✅ Only use water-based ink (no VOCs = non-toxic, không mùi, no harmful residue; unlike solvent-based inks—this choice aligns with our Từ nguyên liệu thô safety standards).​

✅ Pre-use third-party lab tests: Heavy metals (lead, mercury, cadmium) and benzene compounds must be “undetectable”—we treat ink like a raw material in our Từ nguyên liệu thô mindset.​

✅ Real-time printing inspections (every 30 minutes):​

1. Ink adhesion test: Wrap sample around 500g weight, rub 20x on white paper—no ink transfer (adjust pressure/temp if needed; this ensures the print lasts from Từ nguyên liệu thô to customer use).​

2. Printing accuracy: Use calipers to check logo-edge distance—tolerance ±0.5mm (avoids misprints hurting brand image; precision matters as much as Từ nguyên liệu thô chất lượng).​

✅ “Safe distance” rule: Printed area ≥1cm from the bag’s inner surface (for direct bread contact—extends the Từ nguyên liệu thô safety promise to the final design).​

✅ Extra protection for transparent PE bags: Add a food-grade film between ink and bread (prevents ink migration—another layer of safety in the Từ nguyên liệu thô-to-finished process).​

💪 3. Pressure Resistance Testing: Durable for Real Life—Protecting the From Raw Materials Investment​

The durability of a bread bag depends not just on Từ nguyên liệu thô chất lượng, but also on how well it holds up in real use. We simulate real scenarios to ensure the Từ nguyên liệu thô effort doesn’t go to waste.​

✅ Use a computer-controlled pressure tester:​

1. Pick 50 random samples per batch (from different production line parts for fairness—we test the consistency of the Từ nguyên liệu thô-to-production process).​

2. Seal bag openings (simulate full bread), apply gradual pressure:​

• Regular bags (500g-1kg bread): Withstand 200N (≈20kg weight) for 60s—no breaking/leaking (durability that honors Từ nguyên liệu thô tiêu chuẩn).​

• Large bags (2kg+ bread): Withstand 300N (higher strength for heavier loads—built on reliable Từ nguyên liệu thô).​

✅ Dynamic durability test (simulate delivery):​

1. Fill bags with sandbags (same shape/weight as bread—mimics real use of the Từ nguyên liệu thô-made bag).​

2. Put in vibration tester (5Hz frequency, 10mm amplitude) for 2h (mimics truck bumps—tests if the bag stays intact after Từ nguyên liệu thô and production).​

3. Check seams for damage/deformation—1 failed sample = batch on hold (fix material/sealing, retest until pass—we don’t let poor production undo Từ nguyên liệu thô chất lượng).​

🔍 4. Beyond Key Links: Full-Lifecycle Quality—Completing the From Raw Materials to Finished Journey​

Our 360° process doesn’t stop at core steps—we check until the final bag to ensure the Từ nguyên liệu thô-to-finished journey ends with excellence.​

✅ Finished product visual inspection:​

• Use light tables to spot 0.1mm pinholes (tiny holes = freshness loss—we catch this before the Từ nguyên liệu thô-made bag reaches customers).​

• Check for uneven sealing or dirty marks (no flaws allowed in the final product of our Từ nguyên liệu thô quá trình).​

✅ Freshness retention test:​

• Put a bread slice in the bag, niêm phong, store at 25°C for 3 days.​

• Ensure bread stays soft + no mold (tests airtightness/moisture control—proves the Từ nguyên liệu thô and production work together to keep bread fresh).​
  

❤️ Why This Matters: From Raw Materials to Trust​

Quality control isn’t just procedures—it’s a mindset centered on Từ nguyên liệu thô to finished excellence. Every bread bag connects bakeries to customers, so its safety and durability (rooted in Từ nguyên liệu thô chất lượng) directly affect your brand reputation.​

If you’re a bakery owner/buyer, visit our factory! See our Từ nguyên liệu thô warehouses, lab tests, and production checks firsthand—partner with a factory that builds quality from Từ nguyên liệu thô to the very last bag.