2025 از مواد اولیه تا محصولات نهایی: رونمایی از فرآیند کنترل کیفیت 360 درجه یک کارخانه کیسه نان

وقتی یک نان تازه پخته را برمی دارید, کیسه نان اولین آن است “محافظ”—and behind this simple packaging lies a strict quality journey that starts with از مواد خام to finished products. سیستم کیفیت 360 درجه کارخانه ما, built around the principle of از مواد خام to end, تضمین می کند که هر کیسه ایمن است, بادوام, and up to global standards. Let’s break down the key steps of this از مواد خام-to-finished process!را

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

Raw materials are the starting line of our از مواد خام-driven quality control—we focus on two main options: food-grade PE و kraft paper, both screened to meet the highest safety benchmarks.​

For Food-Grade PE (پلی اتیلن):را

✅ Only source from suppliers with FDA & SGS certifications—this is the first checkpoint in our از مواد خام فرآیند (global food safety standards non-negotiable).را

✅ 3-step inspection before factory entry (a must for از مواد خام کیفیت):را

1. Check certification docs to confirm compliance with food contact material rules (no shortcuts in از مواد خام screening).را

2. Laboratory sensory test: No strange smells, تغییر رنگ, or impurities (even a tiny black spot = rejection—we don’t compromise on از مواد خام کیفیت).را

3. Migration test: Soak PE film in simulated food solution (به عنوان مثال, acetic acid for acidic foods) at 40°C for 24h—test for heavy metals/plasticizers (critical for از مواد خام ایمنی).را

✅ Must meet China’s GB 4806.7-2016 standard (food contact plastics) to move from از مواد خام stage to production.​

For Kraft Paper (Premium Bread Packaging):را

🌿 Prioritize 100% recycled fibers with FSC certification—eco-friendliness is part of our از مواد خام criteria (no toxic additives allowed).را

✅ Random sampling tests (key for از مواد خام consistency):را

1. Basis weight: Minimum 80g/m² (prevents tearing when holding bread—durability starts at از مواد خام).را

2. Moisture content: 8%-12% (too wet = mold; too dry = brittleness—we control this at از مواد خام stage).را

3. Grease resistance test: Apply edible oil, observe 24h—no seepage allowed (seepage ruins bread texture, so we eliminate this risk at از مواد خام).را
   

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

After passing از مواد خام 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 از مواد خام-to-finished chain safe.​

✅ Only use water-based ink (no VOCs = non-toxic, بی بو, no harmful residue; unlike solvent-based inks—this choice aligns with our از مواد خام استانداردهای ایمنی).را

✅ 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 از مواد خام mindset.​

✅ Real-time printing inspections (every 30 دقیقه):را

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 از مواد خام to customer use).را

2. Printing accuracy: Use calipers to check logo-edge distance—tolerance ±0.5mm (avoids misprints hurting brand image; precision matters as much as از مواد خام کیفیت).را

✅ “Safe distance” rule: Printed area ≥1cm from the bag’s inner surface (for direct bread contact—extends the از مواد خام safety promise to the final design).را

✅ Extra protection for transparent PE bags: Add a food-grade film between ink and bread (prevents ink migration—another layer of safety in the از مواد خام-to-finished process).را

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

The durability of a bread bag depends not just on از مواد خام کیفیت, but also on how well it holds up in real use. We simulate real scenarios to ensure the از مواد خام effort doesn’t go to waste.​

✅ Use a computer-controlled pressure tester:را

1. Pick 50 random samples per batch (from different production line parts for fairness—we test the consistency of the از مواد خام-to-production process).را

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

• Regular bags (500g-1kg bread): Withstand 200N (≈20kg weight) for 60s—no breaking/leaking (durability that honors از مواد خام استانداردها).را

• Large bags (2kg+ bread): Withstand 300N (higher strength for heavier loads—built on reliable از مواد خام).را

✅ Dynamic durability test (simulate delivery):را

1. Fill bags with sandbags (same shape/weight as bread—mimics real use of the از مواد خام-made bag).را

2. Put in vibration tester (5Hz frequency, 10mm amplitude) for 2h (mimics truck bumps—tests if the bag stays intact after از مواد خام و تولید).را

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 از مواد خام کیفیت).را

🔍 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 از مواد خام-to-finished journey ends with excellence.​

✅ Finished product visual inspection:را

• Use light tables to spot 0.1mm pinholes (tiny holes = freshness loss—we catch this before the از مواد خام-made bag reaches customers).را

• Check for uneven sealing or dirty marks (no flaws allowed in the final product of our از مواد خام فرآیند).را

✅ Freshness retention test:را

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

• Ensure bread stays soft + no mold (tests airtightness/moisture control—proves the از مواد خام and production work together to keep bread fresh).را
  

❤️ Why This Matters: From Raw Materials to Trust​

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

If you’re a bakery owner/buyer, visit our factory! See our از مواد خام انبارها, lab tests, and production checks firsthand—partner with a factory that builds quality from از مواد خام to the very last bag.