A kind of formula and processing technology of disposable degradable dining table cloth

A kind of formula and processing technology of disposable degradable dining table cloth

  • CN 105,153,525 B
  • Filed: 10/19/2015
  • Issued: 09/14/2016
  • Est. Priority Date: 10/19/2015
  • Status: Active Grant
First Claim
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1. the production technology of a disposable degradable dining table cloth, it is characterised in that described dining table cloth includes following raw material by weight:

  • polyethylene20~

    25 parts, calcium carbonate superfine powder 50~

    75 parts, hollow glass micropearl 2~

    5 parts, photodegradable aid 0.1~

    0.5 part, degraded induction period regulator0.5~

    2 part, tetrahydrophthalic acid calcium 0.1~

    0.5 part;

    Described technique comprises the following steps;

    1) calcium carbonate superfine powder is dried to moisture≤

    0.1%;

    2) add hollow glass micropearl and tetrahydrophthalic acid calcium mixes with dried calcium carbonate high-speed stirred, high-speed stirred 5~

    10 minutes, rotating speedIt is 500~

    800r/min;

    3) add polyethylene, photodegradable aid and degraded induction period regulator heated at high speed to stir 10~

    20 minutes, mixing speed 700~

    1000r/min,Heating-up temperature 50~

    80 DEG C;

    4) adding mixture in extruder, the heating-up temperature of barrel is 180~

    220 DEG C;

    5) molten mixture enters curtain coating pressure roller molding by mouth die.

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