CN112980361A - Thermosol for compounding paper towel and preparation method thereof - Google Patents

Abstract

The invention discloses a thermosol for compounding paper towels and a preparation method thereof, and relates to the field of adhesives and preparation methods thereof. The thermosol for compounding the paper towel is prepared from the following raw materials in parts by weight: 20-30 parts of butadiene-styrene block copolymer, 30-40 parts of tackifier, 5-10 parts of plasticizer, 10-20 parts of montan wax, 0.2-0.8 part of antioxidant and 3-10 parts of anti-aging agent; the anti-aging agent is phenylpropionic acid pentaerythritol ester, the tackifying resin is hydrogenated petroleum resin, the plasticizer is stearic acid, and the antioxidant is antioxidant 1010. When the thermosol prepared by the invention is applied to paper towel bonding, the paper towel has better softness and peelability.

Description

Thermosol for compounding paper towel and preparation method thereof

Technical Field

The invention relates to the field of adhesives and preparation methods, in particular to a thermosol for compounding paper towels and a preparation method.

Background

In daily production, most of the used paper towels are formed by compounding more than two layers of paper in consideration of using effect, and the layers are bonded by using an adhesive, but the bonding strength of the adhesive cannot be too high because the composite paper is required to be peelable, namely, after the two layers of paper are compounded by using the adhesive and separated, the two layers of paper are intact. Currently, an aqueous adhesive is widely used as an adhesive for paper towels, and the water in the aqueous adhesive is absorbed by the paper towels to affect the using effect of the paper towels, and the aqueous adhesive is easy to deteriorate.

Disclosure of Invention

The invention provides a thermosol for compounding paper towels and a preparation method thereof, aiming at the defects of the prior art.

The technical scheme is as follows:

the thermosol for compounding the paper towel is prepared from the following raw materials in parts by weight: 20-30 parts of butadiene-styrene block copolymer, 30-40 parts of tackifier, 5-10 parts of plasticizer, 10-20 parts of montan wax, 0.2-0.8 part of antioxidant and 3-10 parts of anti-aging agent;

the anti-aging agent is phenylpropionic acid pentaerythritol ester, the tackifying resin is hydrogenated petroleum resin, the plasticizer is stearic acid, and the antioxidant is antioxidant 1010.

A preparation method of thermosol for compounding paper towels comprises the following steps:

1) heating the reaction kettle to 140 ℃ below zero and keeping the temperature in the reaction kettle at 140 ℃ below zero in the subsequent reaction step;

2) adding montan wax into a reaction kettle, and heating until the montan wax is completely melted;

3) adding the tackifier into the totally dissolved montan wax, and stirring until the tackifier is totally dissolved;

4) adding a plasticizer, an antioxidant and an anti-aging agent into the mixture obtained in the step 3), gradually adding the butadiene-styrene block copolymer after the mixture is completely dissolved, and stirring the components to form a viscous liquid;

5) and (3) controlling the temperature in the reaction kettle after the step 4) to be 140 ℃, vacuumizing, cooling after vacuumizing, and packaging to obtain the solid hot melt adhesive.

Has the advantages that:

1) when the thermosol prepared by the invention is applied to paper towel bonding, the paper towel has better softness and peelability;

2) the anti-aging agent and the antioxidant can effectively slow down the aging of the hot melt adhesive and improve the storage time of the hot melt adhesive.

Detailed Description

The present invention will be described in detail with reference to examples, but the embodiments of the present invention are not limited to the examples.

Example 1

Weighing the following raw materials in parts by mass:

example 2

Example 3

Example 4

The raw materials weighed in the above examples 1 to 4 were prepared as follows to obtain a thermosol a, a thermosol b, a thermosol c, and a thermosol d.

1) Heating the reaction kettle to 140 ℃ below zero and keeping the temperature in the reaction kettle at 140 ℃ below zero in the subsequent reaction step;

2) adding montan wax into a reaction kettle, and heating until the montan wax is completely melted;

3) adding hydrogenated petroleum resin into the completely dissolved montan wax, and stirring until the hydrogenated petroleum resin is completely dissolved;

4) adding stearic acid, an antioxidant 1010 and pentaerythritol phenylpropionate into the step 3), gradually adding a butadiene-styrene block copolymer after the stearic acid, the antioxidant 1010 and the pentaerythritol phenylpropionate are completely dissolved, and stirring the components to form a viscous liquid;

5) and (3) controlling the temperature in the reaction kettle after the step 4) to be 140 ℃, vacuumizing, cooling after vacuumizing, and packaging to obtain the solid hot melt adhesive.

The thermosol prepared by the invention is used for paper towel bonding, the softness of a double-layer paper towel is not different from that of a single-layer paper towel, and the phenomenon of paper towel cracking can not occur when the double-layer paper towel is peeled.

Claims (3)

1. The thermosol for compounding the paper towel is characterized by comprising the following raw materials in parts by mass:

20-30 parts of butadiene-styrene block copolymer, 30-40 parts of tackifier, 5-10 parts of plasticizer, 10-20 parts of montan wax, 0.2-0.8 part of antioxidant and 3-10 parts of anti-aging agent.

2. The thermosol for compounding paper towels of claim 1, wherein the anti-aging agent is pentaerythritol phenylpropionate, the tackifying resin is hydrogenated petroleum resin, the plasticizer is stearic acid, and the antioxidant is antioxidant 1010.

3. A method for preparing a thermosol for compounding paper towels as set forth in claim 1, comprising the steps of:

1) heating the reaction kettle to 140 ℃ below zero and keeping the temperature in the reaction kettle at 140 ℃ below zero in the subsequent reaction step;

2) adding montan wax into a reaction kettle, and heating until the montan wax is completely melted;

3) adding the tackifier into the totally dissolved montan wax, and stirring until the tackifier is totally dissolved;

4) adding a plasticizer, an antioxidant and an anti-aging agent into the mixture obtained in the step 3), gradually adding the butadiene-styrene block copolymer after the mixture is completely dissolved, and stirring the components to form a viscous liquid;

5) and (3) controlling the temperature in the reaction kettle after the step 4) to be 140 ℃, vacuumizing, cooling after vacuumizing, and packaging to obtain the solid hot melt adhesive.