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Interlayer spray starch

Interlayer spray starch is used in paperboard and thick paper to improve interlayer bonding force, and is also widely used to improve stiffness, ring pressure strength and surface strength.

Key words:

  • Commodity name: Interlayer spray starch
  • Product Description
  • Interlayer spray starch

     

    Performance characteristics:

    1. Interlayer spray starch is used in paperboard and thick paper to improve interlayer bonding force, and is also widely used to improve stiffness, ring compression strength and surface strength.

    2. For pulps with high impurity ion content (such as mill pulp, waste paper pulp, straw pulp, etc.), the enhancement effect of interlayer spray starch is obviously better than that of wet end addition, and the retention rate is higher than that of starch added in the pulp. It is more suitable for paper machines without a size press.

    3. The establishment of the spray system can make the starch evenly distributed throughout the thickness of the paper sheet, or according to the needs, limit the distribution of most of the starch in the paper sheet or spray in the interlayer composite of the multilayer board paper, and play the role of interlayer reinforcement.

    Table I: Sensory Indicators

     

    Project

    Indicators

    Appearance

    White or yellowish powder

    Smell

    With the proper smell of this product, no peculiar smell

    Impurity

    No visible foreign impurities

     

    Table 2: Physical and chemical indicators

     

    Project

    Technical indicators

    spray starch

    Water (%)≤

    14.0

    Fineness (%)≥

    99.0

    Spot ≤

    5.0

    Protein (%)

    0.8

    PH value

    6.0-8.0

    Carboxyl content (%)

    1.0

    Whiteness (%)

    85

    Viscosity (mps)(6% concentration/65 degrees)-79

    6.0-500

    Note: the customer has no special requirements for viscosity, according to the company's production viscosity.

     

    Method of use:

    1. With cold water in the stirring down into a 5% concentration of suspension, after 100 mesh sieve filtration, through the booster metering pump and spray device, spray to the cardboard.

    2. Dosage: 1-3%

    3. Packing: 25kg composite plastic packaging bag.

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