2025 Des de matèries primeres fins a productes acabats: Presentació del procés de control de qualitat 360° d'una fàbrica de bosses de pa

Quan agafeu un pa acabat de fer, la bossa de pa és la primera “protector”—and behind this simple packaging lies a strict quality journey that starts with A partir de matèries primeres to finished products. El sistema de qualitat 360° de la nostra fàbrica, built around the principle of A partir de matèries primeres to end, garanteix que cada bossa sigui segura, durador, and up to global standards. Let’s break down the key steps of this A partir de matèries primeres-to-finished process!​

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

Raw materials are the starting line of our A partir de matèries primeres-driven quality control—we focus on two main options: food-grade PE i kraft paper, both screened to meet the highest safety benchmarks.​

For Food-Grade PE (Polietilè):​

✅ Only source from suppliers with FDA & SGS certifications—this is the first checkpoint in our A partir de matèries primeres procés (global food safety standards non-negotiable).​

✅ 3-step inspection before factory entry (a must for A partir de matèries primeres qualitat):​

1. Check certification docs to confirm compliance with food contact material rules (no shortcuts in A partir de matèries primeres screening).​

2. Laboratory sensory test: No strange smells, decoloració, or impurities (even a tiny black spot = rejection—we don’t compromise on A partir de matèries primeres qualitat).​

3. Migration test: Soak PE film in simulated food solution (P., acetic acid for acidic foods) at 40°C for 24h—test for heavy metals/plasticizers (critical for A partir de matèries primeres seguretat).​

✅ Must meet China’s GB 4806.7-2016 estàndard (food contact plastics) to move from A partir de matèries primeres stage to production.​

For Kraft Paper (Premium Bread Packaging):​

🌿 Prioritize 100% recycled fibers with FSC certification—eco-friendliness is part of our A partir de matèries primeres criteria (no toxic additives allowed).​

✅ Random sampling tests (key for A partir de matèries primeres consistency):​

1. Basis weight: Minimum 80g/m² (prevents tearing when holding bread—durability starts at A partir de matèries primeres).​

2. Moisture content: 8%-12% (too wet = mold; too dry = brittleness—we control this at A partir de matèries primeres stage).​

3. Grease resistance test: Apply edible oil, observe 24h—no seepage allowed (seepage ruins bread texture, so we eliminate this risk at A partir de matèries primeres).​
   

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

After passing A partir de matèries primeres 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 A partir de matèries primeres-to-finished chain safe.​

✅ Only use water-based ink (no VOCs = non-toxic, sense olor, no harmful residue; unlike solvent-based inks—this choice aligns with our A partir de matèries primeres 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 A partir de matèries primeres 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 A partir de matèries primeres 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 A partir de matèries primeres qualitat).​

✅ “Safe distance” rule: Printed area ≥1cm from the bag’s inner surface (for direct bread contact—extends the A partir de matèries primeres 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 A partir de matèries primeres-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 A partir de matèries primeres qualitat, but also on how well it holds up in real use. We simulate real scenarios to ensure the A partir de matèries primeres 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 A partir de matèries primeres-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 A partir de matèries primeres estàndards).​

• Large bags (2kg+ bread): Withstand 300N (higher strength for heavier loads—built on reliable A partir de matèries primeres).​

✅ Dynamic durability test (simulate delivery):​

1. Fill bags with sandbags (same shape/weight as bread—mimics real use of the A partir de matèries primeres-made bag).​

2. Put in vibration tester (5Hz frequency, 10mm amplitude) for 2h (mimics truck bumps—tests if the bag stays intact after A partir de matèries primeres 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 A partir de matèries primeres qualitat).​

🔍 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 A partir de matèries primeres-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 A partir de matèries primeres-made bag reaches customers).​

• Check for uneven sealing or dirty marks (no flaws allowed in the final product of our A partir de matèries primeres procés).​

✅ Freshness retention test:​

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

• Ensure bread stays soft + no mold (tests airtightness/moisture control—proves the A partir de matèries primeres 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 A partir de matèries primeres to finished excellence. Every bread bag connects bakeries to customers, so its safety and durability (rooted in A partir de matèries primeres qualitat) directly affect your brand reputation.​

If you’re a bakery owner/buyer, visit our factory! See our A partir de matèries primeres magatzems, lab tests, and production checks firsthand—partner with a factory that builds quality from A partir de matèries primeres to the very last bag.