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Fully-biodegradable high-barrier sheet for coffee capsule cup body, and preparation method thereof

A coffee capsule and high-barrier technology, which is applied in the field of packaging materials, can solve the problems of high water vapor and oxygen transmission rate, easy deformation of the coffee capsule cup, and poor aroma retention, so as to improve interface energy, good aroma retention, and improve Fragrance retention effect

Inactive Publication Date: 2020-05-08
周锐
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the coffee capsule cup made of this material can be degraded, its texture is relatively soft. Under certain pressure and high temperature, the coffee capsule cup is easily deformed, and its barrier property is poor, and the water vapor and oxygen transmission rates are high. Fragrance retention is poor

Method used

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  • Fully-biodegradable high-barrier sheet for coffee capsule cup body, and preparation method thereof
  • Fully-biodegradable high-barrier sheet for coffee capsule cup body, and preparation method thereof

Examples

Experimental program
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Effect test

preparation example 1

[0040] Preparation Example 1: ① Primary treatment: Grind coffee grounds and pass through a 100-mesh sieve to obtain fine grounds, wash the fine grounds with deionized water, filter, and dry at 80°C for 3 hours to obtain first-grade coffee slag;

[0041] ②Secondary treatment: put the first-grade coffee grounds in 10wt% sodium hydroxide solution, the weight of the sodium hydroxide solution is 3 times that of the first-grade coffee grounds, soak the first-grade coffee grounds for 20 minutes, take it out, and wash with water After washing to neutrality, dry at 80°C for 3 hours to obtain secondary coffee grounds;

[0042] ③Roasting treatment: place the second-grade coffee grounds at a temperature of 300°C and roast for 3 hours to obtain third-grade coffee grounds;

[0043] ④ Preparation of modified solution: Take 10kg of hydroxyapatite, 10kg of hydroxypropyl-β-cyclodextrin, 6kg of sodium lauroyl sarcosinate, 2kg of sodium alginate, γ-methacryloxypropyl trimethoxy Silane 0.08kg an...

preparation example 2

[0045] Preparation example 2: ① Primary treatment: Grind coffee grounds and pass through a 100-mesh sieve to obtain fine grounds, wash the fine grounds with deionized water, filter, and dry at 80°C for 3 hours to obtain first-grade coffee slag;

[0046] ②Secondary treatment: put the first-grade coffee grounds in 10wt% sodium hydroxide solution, the weight of the sodium hydroxide solution is 3 times that of the first-grade coffee grounds, soak the first-grade coffee grounds for 40 minutes, take it out, and wash with water After washing to neutrality, dry at 80°C for 3 hours to obtain secondary coffee grounds;

[0047] ③Roasting treatment: place the second-grade coffee grounds at a temperature of 350°C and roast for 4 hours to obtain third-grade coffee grounds;

[0048] ④ Preparation of modified solution: Take 15kg of hydroxyapatite, 15kg of hydroxypropyl-β-cyclodextrin, 8kg of sodium lauroyl sarcosinate, 2.5kg of sodium alginate, γ-methacryloxypropyl trimethoxy Base silane 0....

preparation example 3

[0050] Preparation Example 3: ① Primary treatment: Grind coffee grounds and pass through a 100-mesh sieve to obtain fine grounds, wash the fine grounds with deionized water, filter, and dry at 80°C for 3 hours to obtain first-grade coffee slag;

[0051] ②Secondary treatment: put the first-grade coffee grounds in 10wt% sodium hydroxide solution, the weight of the sodium hydroxide solution is three times that of the first-grade coffee grounds, soak the first-grade coffee grounds for 60 minutes, take them out, and rinse with water. After washing to neutrality, dry at 80°C for 3 hours to obtain secondary coffee grounds;

[0052] ③Roasting treatment: place the second-grade coffee grounds at a temperature of 400°C and roast for 5 hours to obtain third-grade coffee grounds;

[0053] ④ Preparation of modified solution: Take 20kg of hydroxyapatite, 20kg of hydroxypropyl-β-cyclodextrin, 10kg of sodium lauroyl sarcosinate, 3kg of sodium alginate, γ-methacryloxypropyl trimethoxy Silane ...

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Abstract

The invention discloses a fully-biodegradable high-barrier sheet for a coffee capsule cup body, and a preparation method thereof, and relates to the technical field of packaging materials. The sheet is of a five-layer structure and comprises an inner film layer, bonding layers arranged on two sides of the inner film layer and base material layers arranged on ones side, away from the inner film layer, of the bonding layers; the raw materials of the inner film layer comprise high-barrier degradable resin; the raw material of the bonding layer is degradable bonding resin; the raw material of thebase material layer is fully-degradable plastic; the high-barrier degradable resin is BVE8049 provided by Japanese synthetic chemistry; and the degradable adhesive resin is BTR8002P provided by Japanese synthetic chemistry. The sheet provided by the invention has excellent degradability, water and oxygen barrier property and fragrance retention property, and good impact resistance and thermal deformation resistance.

Description

technical field [0001] The invention relates to the technical field of packaging materials, more specifically, it relates to a fully biodegradable high-barrier sheet used for coffee capsule cups and a preparation method thereof. Background technique [0002] The English name of the coffee capsule is coffee capsule, which is similar to the medicinal capsule. It is filled with coffee powder in the cup of the coffee capsule. Because the texture of the cup of the coffee capsule is relatively hard, it can maintain the prototype well under high temperature, so it can The high-pressure steam is injected into the capsule, so that the coffee is completely separated under the action of pressure, with coffee crema, full-bodied espresso. Existing coffee capsules are generally made of a plastic cup body and an aluminum foil cover film. In order to ensure that the coffee capsule can still maintain the prototype at high temperature, the cup body of the existing coffee capsule is usually ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/36B32B7/12B32B27/06B32B27/18B32B33/00C08L5/16C08L5/04C08K3/32C08K5/20C08K5/5425B29D7/01
CPCB29D7/01B32B7/12B32B27/08B32B27/18B32B27/36B32B33/00B32B2250/05B32B2250/40B32B2307/306B32B2307/558B32B2307/716B32B2307/7244B32B2307/7246B32B2439/70C08K2003/325C08L5/16C08L5/04C08K3/32C08K5/20C08K5/5425
Inventor 周锐李双利
Owner 周锐
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