حزمة ثلج جاف وبارد إضافي: إتقان الشحن البارد للغاية في 2025

مقدمة

Keeping frozen products rock solid during long journeys isn’t just nicetohave—it’s essential for food safety, فعالية الدواء ورضا العملاء. و extra cold dry ice pack sheet offers deeper freezing capability than standard gel packs or phase change materials (بي سي إم). تشرح هذه المقالة ما الذي يجعل هذه الأوراق مميزة جدًا, متى تستخدمها, كيفية حجمها والتعامل معها بأمان, وكيف 2025 تؤثر اتجاهات سلسلة التبريد على اختياراتك. بحلول النهاية, ستعرف كيفية حماية شحناتك, تقليل النفايات والبقاء متوافقة.

افهم أوراق أكياس الثلج الجاف شديدة البرودة: تعرف على كيفية توصيل هذه البطانيات المرنة من ثاني أكسيد الكربون الصلب إلى -78.5 درجة مئوية, لماذا تتفوق على عبوات الجل, وماذا يعني "البرد الزائد" حقًا.

حجمها وتطبيقها بشكل صحيح: اتبع إرشادات الحجم خطوة بخطوة, حسابات سريعة وأنماط تعبئة تزيد من وقت الانتظار.

تعامل مع الثلج الجاف بأمان والتزم باللوائح: تعرف على الأمم المتحدة 1845 وضع العلامات, تهوية, معدات الوقاية الشخصية وقواعد التخلص منها.

Compare against gel packs and PCM: Use sidebyside data to choose the right coolant for different lanes and products.

البقاء في المقدمة 2025 الاتجاهات: استكشاف نمو السوق, الاستدامة, IoT monitoring and other innovations shaping frozen logistics.

What Is an Extra Cold Dry Ice Pack Sheet and Why Use It?

A flexible blanket of solid carbon dioxide – An extra cold dry ice pack sheet consists of multiple pockets filled with solid CO₂ captured inside a superabsorbent polymer matrix. عند ترطيبها وتجميدها, the sheet becomes rigid enough to wrap around irregular shapes while remaining thin enough to fit tight spaces. Dry ice sublimates directly from solid to gas at about –78.5 °C (-109.3 درجة فهرنهايت), so it leaves no water residue and maintains ultralow temperatures far longer than waterbased ice or gel packs.

Why “extra cold” matters – The term refers to the extreme temperature and cooling capacity rather than a brand. Dry ice delivers around 571 kJ of cooling energy per kilogram as it sublimates, providing a deepfreeze “battery” that can recover from dooropen delays and hot depots. Gel packs operate near 0 °C to –5 °C and typically last only 6–12 hours, while PCM panels around –21 °C provide a medium level of cooling. For shipments that must stay below –20 °C for 48–96 hours—such as ice cream, vaccines or specialty chemicals—an extra cold dry ice pack sheet offers the necessary temperature headroom.

How Sublimation Delivers UltraLow Temperatures

عندما يسامي الثلج الجاف, the endothermic reaction absorbs approximately 571 كيلوجول من الحرارة لكل كيلوجرام. This energy draw effectively cools the surrounding environment. Because the sheet wraps around the cargo, it eliminates warm corners and dead air pockets. Dry ice pellets poured loosely can shift and create uneven cooling, but a sheet stays in place, reducing temperature gradients and minimizing handling hazards.

Key Advantages Over Gel Packs and PCM

High cooling capacity – Dry ice delivers the most cooling energy per kilogram, so you can use less total mass compared with stacking gel bricks or PCM panels. This efficiency reduces shipping weight and cuts costs.

وقت طويل – Rapidfreeze dry ice sheets maintain ultracold temperatures for up to 72 ساعات, whereas gel packs last 6–12 hours and PCM panels 24–72 hours. If your lane spans multiple days or includes unpredictable dwell time, dry ice provides a greater safety margin.

لا فوضى – Because dry ice sublimates directly to CO₂ gas, there’s no meltwater to damage packaging, التسميات أو البضائع. This makes it ideal for shipping pharmaceuticals, biologics and delicate frozen foods.

كفاءة في استخدام المساحة ومرونة – Extra cold dry ice sheets conform to irregular shapes and maximize contact with the product, reducing unused space and promoting uniform cooling. They are also lighter than waterbased ice, which can lower freight costs.

البرد المستمر – Uniform contact reduces temperature gradients, ensuring sensitive products stay within their required temperature range. على سبيل المثال, a biotech company wrapped mRNA vaccine vials with dry ice sheets and maintained –75 °C for 72 hours despite ambient temperatures of 25 درجة مئوية; وصلت القوارير جافة وغير ملوثة.

Sizing Your Extra Cold Dry Ice Pack Sheet

Getting the right mass and thickness is critical. Too little dry ice leads to premature thawing, while too much wastes money and increases emissions. Below are practical guidelines.

Thickness and Duration

Quick Field Rule

For a standard 12–24 litre expanded polystyrene (EPS) cooler shipping frozen food, ابدأ بـ 2-4 كجم of dry ice for a 24hour hold. ل 48-72 ساعة, يخطط 4–8 kg, and scale up for 96 ساعات. The exact mass depends on insulation (قيمة R), حجم المربع, ambient peaks and how often the parcel is opened.

Step By Step Calculation

تقدير تسرب الحرارة (س) – Multiply the box’s Uvalue by its surface area and the average temperature difference between ambient and target.

اضرب بالوقت (Q = Q̇ × hours) – Convert to kilojoules.

Add product pulldown – If the product isn’t prefrozen, include the energy to cool or freeze it.

أضف 20-30 % المخزن المؤقت – Accounts for handoffs, resorting and weekend holds.

Divide by 571 كيلوجول/كجم – The result is your firstpass kilograms of dry ice.

Adjusting for Insulation

PackOut Pattern

Place the extra cold dry ice pack فوق the payload—CO₂ gas sinks, washing cold air over the product. Use side runners if space allows, and add only a small bottom pad when necessary to avoid waste. Always leave vent paths; never seal the container gastight.

Use corrugated cardboard or kraft paper as a barrier between the sheet and delicate products such as glass vials. للأشكال غير المنتظمة, قم بلف الورقة بالكامل حول الحمولة لضمان الاتصال الموحد.

أمثلة العالم الحقيقي

Biotech shipping vaccines – A biotechnology company shipped mRNA vaccines using flexible dry ice sheets that wrapped each vial. حافظت الأوراق على -75 درجة مئوية 72 hours and sublimated cleanly, so the vials arrived dry and uncontaminated.

تصدير المأكولات البحرية – A seafood exporter shipping frozen fish across continents used a 24 mm dry ice sheet with a 1:1 dry icetoproduct weight ratio. By using vacuum insulated panels (VIP) and wrapping the sheet around each fish, the exporter maintained –40 °C for 60 ساعات, منع ارتفاع درجات الحرارة والتكثيف.

اعتبارات السلامة والتنظيم

Dry ice is exceptionally cold and classified as a hazardous material, so proper handling is mandatory.

معدات الحماية الشخصية (PPE)

• Insulated gloves and goggles– Always wear insulated gloves and safety goggles to avoid frostbite and eye injuries. Touching dry ice with bare hands can cause severe burns.
• Tongs or scoops– Use tools instead of hands to handle dry ice blocks, especially when breaking sheets into smaller pieces.

التهوية والتخزين

• تهوية– As dry ice sublimates, يطلق غاز CO₂. قم بتخزين الأغطية والتخلص منها في مناطق جيدة التهوية لمنع تراكم الغاز.
• لا تغلق محكم الغلق أبدًا– Never store dry ice in airtight containers or vehicle trunks. Pressure from sublimating gas can cause a container to rupture.

الامتثال التنظيمي

• و 1845 وضع العلامات– Dry ice is classified as “Carbon dioxide, solid” under UN 1845. يجب أن تعرض الحزم اسم الشحن الصحيح, رقم الأمم المتحدة والوزن الصافي على نفس الجانب الذي يوجد به ملصق المخاطر.
• عنوان 49 قواعد CFR وIATA– In the United States, شحنات تحتوي على أكثر من 5.5 رطل (2.5 كجم) من الثلج الجاف يجب أن يتوافق مع العنوان 49 لوائح CFR. للشحنات الجوية, اتبع الاتحاد الدولي للنقل الجوي (IATA) dangerous goods regulations, including net mass limits and shipper’s declaration requirements.
• Recipient safety– If end users handle the parcel, label the package clearly to warn about dry ice and include an instruction card to avoid cold burns and provide disposal guidance.

التخلص الآمن

Dispose of dry ice outdoors or in a wellventilated area. Do not pour remaining dry ice into sinks or sealed bins; it can freeze plumbing or cause pressure buildup. Train receivers to allow the dry ice to sublimate completely in an open space before discarding the sheet.

Choosing Between Dry Ice, PCM and Gel Packs

Selecting the right coolant depends on lane duration, temperature requirements and handling capabilities.

Performance and Cost TradeOffs

Hybrid Approach

A hybrid packout combines –21 °C PCM panels around the sides with an extra cold dry ice pack on top. This setup reduces total dry ice mass while maintaining stability and protecting packaging from brittle fractures.

Environmental and Cost Optimization

Rightsizing your dry ice pack prevents waste and lowers emissions. رفع مستوى العزل (على سبيل المثال, using vacuum insulated panels or thicker EPS walls) can cut required dry ice mass by 20-40 %. A reverse logistics loop to recover shippers and polystyrene alternatives reduces landfill impact and overall cost.

Simple actions like upgrading to thicker walls before adding more dry ice, creating lanespecific sizing standards, and including QR code setup cards so recipients handle and recycle components properly can deliver significant benefits.

رؤى السوق: Cold Chain Packaging Growth

The cold chain packaging sector is booming thanks to surging demand for temperaturecontrolled logistics across food, pharma and chemical industries. Here are the key figures you need to know.

حجم السوق والنمو

The global cold chain packaging market is projected to reach دولار أمريكي 27.1 مليار في 2025 and is expected to expand to دولار أمريكي 104.7 مليار بواسطة 2035, translating to a compound annual growth rate (CAGR) ل 15.8 %. This growth reflects increased consumption of vaccines, البيولوجيا, frozen foods and temperaturesensitive chemicals around the world.

محركات النمو

• Surging demand for temperaturecontrolled packaging– Growth in global trade of perishable goods, vaccines and biologics has significantly increased demand for efficient cold chain packaging solutions. Strict regulatory requirements in pharmaceutical and food industries further necessitate advanced thermal packaging.
• التقدم التكنولوجي– Smart packaging solutions with IoTenabled temperature monitoring are revolutionizing logistics for biological products, frozen foods and highvalue chemicals. Phase change materials with superior thermal stability and reusability are gaining traction and, في بعض الحالات, replacing traditional dry ice.
• التجارة الإلكترونية & online grocery growth– The rise of online food and grocery delivery services has increased the demand for insulated shippers, gel packs and foambased packaging. Consumers’ preference for fresh and organic food drives the need for extended shelflife solutions.
• ضغوط الاستدامة– Companies are shifting toward biodegradable, recyclable and reusable packaging materials to reduce carbon footprints. Regulatory mandates on plastic waste and CO₂ emissions are pushing innovations in biobased cold chain packaging.

تجزئة السوق (2025)

تكوين المواد

Packaging Format

Reusable packaging accounts for 54.8 % من السوق, offering costeffective and sustainable solutions that reduce waste. Disposable packaging still holds 45.2 % يشارك, mainly in export shipping and emergency logistics.

EndUse Industries

The food and beverage sector dominates cold chain packaging with 38.2 % يشارك, driven by rising demand for frozen, fresh and organic foods. Pharmaceuticals and healthcare follow at 29.7 %, reflecting growth in biopharmaceuticals, vaccines and medical shipments. Cosmetics and personal care contribute 14.6 %, and industrial chemicals and specialty materials account for 10.9 %.

Regional Growth and Trends

Challenges and Market Constraints

• تكاليف عالية– Temperaturecontrolled packaging is more expensive than standard packaging, making affordability a challenge for small businesses.
• لوائح صارمة– Regulatory mandates require pharmaceutical and food companies to maintain strict temperature controls, with failure leading to product loss and financial penalties.
• Supply chain disruptions and energy consumption– Rising energy costs and logistical disruptions impact the efficiency of cold chain storage and transportation. Energyefficient and passive cooling solutions are being developed to mitigate these challenges.

2025 Trends in Extra Cold Dry Ice Pack Logistics

صناعة سلسلة التبريد تتطور بسرعة, and extra cold dry ice pack programs are no exception. Several emerging trends are reshaping how companies design and execute frozen shipments.

Smarter RightSizing and DataDriven Optimization

Modern warehouse management systems (WMS) embed estimators that select the correct dry ice mass based on lane and season. Companies combine data loggers with lane analytics to trim excess mass without risking thaw. على سبيل المثال, packaging suppliers now offer sizing calculators and dashboards that compare actual temperature curves with predicted performance. These tools help reduce waste and cut carbon emissions while protecting quality.

Safer PackOuts and Simplified Standard Operating Procedures (SOPS)

Teams are simplifying instructions into onepage SOPs with photos and tables that list net kilograms by lane. By training staff with handson demos and checklists, they reduce handling errors and improve compliance. Tighter SOPs also speed induction at hubs and ensure consistent quality across shifts.

LowerImpact Materials and Sustainability

Packaging suppliers offer recycledcontent EPS and lighter VIP panels that maintain insulation while reducing volume. Hybrid packouts using PCM sidewalls plus a topload dry ice layer reduce total CO₂ sublimation, lowering environmental impact. Companies also implement reverse logistics programs to collect and reuse shippers, تقليل النفايات.

Technology Integration and RealTime Monitoring

The broader logistics industry continues to integrate AI, IoT and realtime tracking to enhance efficiency, accuracy and transparency. في لوجستيات السلسلة الباردة, IoT sensors and predictive algorithms monitor temperature, الرطوبة وفتحات الأبواب في الوقت الحقيقي, helping to prevent losses and ensure shipment integrity. Smart tags and blockchain records support full traceability from origin to delivery, meeting stricter global regulations.

الاستدامة وكفاءة الطاقة

Logistics providers are investing in solarpowered warehouses, electric refrigerated trucks and highefficiency cooling systems to reduce their carbon footprint. There is also a push toward ecofriendly practices across the supply chain, such as optimizing routes to reduce fuel consumption and adopting biodegradable or recyclable packaging materials.

Climate Resilience and Collaborative Logistics

Climate change introduces greater risk of disruptions from floods, heatwaves or storms. Companies are building modular warehouses and distributed storage facilities to ensure continued operation during extreme events. Collaborative logistics—pooling frozen loads among multiple suppliers and leveraging shared platforms—helps reduce emissions and costs while improving network resilience.

Practical Tips for Using Extra Cold Dry Ice Pack Sheets

Specific Scenarios

Shipping ice cream – Use a topload extra cold dry ice pack to maintain a frozen core and buffer heat spikes. Pair with PCM sidewalls for longer durations and place a corrugated barrier between the sheet and cartons. Start with 4–6 kg of dry ice for a 48hour lane and validate with a temperature logger.

Directtoconsumer meal kits – Follow the field rule: 2–4 kg of dry ice for 24hour holds. Topload placement and vented lids reduced summer failure rates from 6.8 % ل 0.9 % for one mealkit brand. Include gloves and a simple disposal card for customers.

Biologic samples – For vaccines or biologics that must remain below –50 °C, choose dual layers of 18–24 mm sheets and precondition containers. Use VIP panels and data loggers, and ensure UN 1845 وضع العلامات.

Specialty chemicals – Some chemicals must stay frozen but cannot contact CO₂. Use a barrier layer such as PCM panels on the bottom and sides, then place the dry ice pack on top separated by corrugated cardboard.

Interactive SelfTest: Are You PackOut Ready?

Use this scoring system (0 = لا, 1 = جزئيا, 2 = نعم) to assess your preparation. Add up your points and see how ready you are.

تم التحقق من صحة مدة المسار باستخدام مسجل في الأخير 90 أيام.

تمت ترقية العزل أو التحقق منه (2″ EPS أو VIP للممرات الطويلة).

Extra cold dry ice pack topload with side runners and corrugate barrier.

غطاء تنفيس + و 1845 التسمية مع صافي كجم المدرجة.

بطاقة SOP لأجهزة الاستقبال والقفازات متضمنة.

نتائج:

8-10 نقاط: You are packout ready—ship with confidence.

5-7 نقاط: Tweak the mass or insulation, run a test and adjust.

0-4 نقاط: Pilot a trial shipment before going live.

Building a OnePage SOP

An effective SOP ensures anyone on your team can assemble a dry ice pack safely in under five minutes. A suggested outline includes PPE, التدريج, box preparation, product loading, cold source placement, ملء باطلة, الختم ووضع العلامات, and handoff steps. Include a photo of the correct packout and a table listing net kilograms by lane for quick reference.

الأسئلة المتداولة

How much extra cold dry ice pack do I need for a 48hour shipment?
يخطط 4-6 كجم of dry ice for a midsize EPS shipper, ثم التحقق من صحة مسجل درجة الحرارة. Hot lanes or weekend holds may require additional buffer.

عبارة عن كيس ثلج جاف بارد جدًا وآمن لشحنات المواد الغذائية?
نعم, provided you allow ventilation and separate the dry ice from unpackaged food. Wrap or partition the sheet so it does not come into direct contact with edible items.

هل يمكنني الطيران باستخدام كيس ثلج جاف إضافي بارد؟?
Air shipments allow dry ice within net mass limits and with proper labeling. Check your carrier’s current dangerous goods regulations and mark the package “UN 1845” with net kilograms.

Dry ice vs –21 °C PCM—which is better?
For deepfreeze lanes or heat spikes, choose the extra cold dry ice pack; for stable 24–48 hour frozen lanes, يمكن أن يعمل PCM بشكل جيد مع معالجة أقل.

أين يجب أن أضع كيس الثلج الجاف البارد الإضافي في الصندوق؟?
على القمة. مغاسل غاز ثاني أكسيد الكربون, so toploading washes cold air downward for better hold time.

ماذا يحدث إذا كان الصندوق محكم الإغلاق?
يمكن أن يتراكم الضغط مع تسامي الثلج الجاف. Always provide a vent path and never seal containers gastight.

ملخص وتوصيات

An extra cold dry ice pack sheet delivers unmatched subzero control for frozen shipments. Because dry ice sublimates at –78.5 °C, it absorbs heat efficiently and leaves no residue. Proper sizing—using field rules, quick calculations and test shipments—ensures the right mass for each lane. Toploading, venting and UN 1845 وضع العلامات ضرورية. Pairing dry ice with PCM panels and upgrading insulation can reduce mass and environmental impact. Datadriven sizing, simplified SOPs and smart sensors are trends shaping 2025. Keep learning and adjust your packouts as conditions and technology evolve.

الخطوات التالية القابلة للتنفيذ

Audit your frozen lanes – Use a logger to validate hold times and heat loads. Identify where extra cold dry ice packs can improve reliability.

تحسين العزل – Upgrade to thicker EPS or VIP panels before adding more dry ice. Consider hybrid PCM + حلول الثلج الجاف.

Develop a onepage SOP – Create simple instructions and train staff. Include PPE requirements, packout photos and lanespecific tables.

Embrace data and technology – Integrate IoT sensors and analytics to rightsize your dry ice mass and reduce waste. Adopt sustainable materials and energyefficient equipment.

Consult a packaging engineer – For complex lanes or highvalue products, seek expert advice to design a compliant, costeffective solution.

حول Tempk

نحن فريق حلول سلسلة التبريد الذي يركز على التغليف العملي, validated packouts and datadriven optimization. تشمل منتجاتنا شركات الشحن EPS وVIP, –21 °C PCM panels, and extra cold dry ice pack programs with SOPs, calculators and training. We help you reduce failures and cost through clear steps and real data.

دعوة إلى العمل

Ready to optimize your frozen shipments? اتصل بنا to schedule a lane audit and receive a tailored extra cold dry ice pack sizing sheet. Our packaging engineers can help you design compliant, efficient solutions that meet your unique needs.