Silicone dipped glove and dipping process thereof

Abstract

Disclosed is a silicone dipped glove, comprising a glove core and a dipping layer. The dipping layer is a silicone mixed compound layer, and the silicone mixed compound layer is composed of the following components at the following proportions by weight: 70-90% of silicone, 5-20% of a curing agent, 5-20% of a diluent, and 0-10% of a color paste. The silicone mixed compound layer of the present invention is composed of silicone, a curing agent and a diluent.

Claims

1. A silicone dipped glove, comprising a glove core or liner layer and a dipping layer, wherein the glove core or liner layer is a woven weave, the dipping layer is a silicone mixed compound layer, and the silicone mixed compound layer is composed of the following components at the following proportions by weight: 70-90% of silicone, 5-20% of a curing agent, 5-20% of a diluent, and 0-10% of a color paste.

2. A dipping process for a silicone dipped glove, wherein the glove core or liner layer according to claim 1 is pretreated and immersed in the compound of the silicone mixed compound layer, and then subjected to dispensing, spin coating and baking steps to obtain the silicone dipped glove.

3. The dipping process for a silicone dipped glove according to claim 2, wherein the glove core or liner layer pretreatment step is specifically: a pretreatment solution is uniformly sprayed on a part of the glove core or liner layer to be dipped according to the requirements of the dipped part, and the glove core or liner layer sprayed with the pretreatment solution is soaked in water at 40-60? C. for 5-10 min, before the dipping step is performed.

4. The dipping process for a silicone dipped glove according to claim 3, wherein the pretreatment solution is composed of the following components at the following proportions by weight: 70-80% of vinyl-terminated polydimethylsiloxane, 5-10% of a silane coupling agent, 5-10% of octamethylcyclotetrasiloxane, 1-3% of a metal catalyst, 5-10% of water, and 0-2% of a color paste.

5. The dipping process for a silicone dipped glove according to claim 4, wherein the metal catalyst is a Karstedt catalyst.

6. The dipping process for a silicone dipped glove according to claim 2, wherein the temperature of the sprayed pretreatment solution is 40-60? C.

Description

DETAILED DESCRIPTION OF THE INVENTION

Example 1

(1) Preparation of a silicone mixed compound layer: 8 Kg of silicone was placed in a batching kettle, and then 1 Kg of a curing agent, 0.8 Kg of 2-methyl silicone oil and 0.2 Kg of a color paste were added. The components were uniformly mixed to obtain a dipping material. The curing agent was formed by mixing ethyl orthosilicate and dibutyltin dilaurate in a weight ratio of 4:1.

Example 2

(2) Preparation of a silicone mixed compound layer: 9 Kg of silicone was placed in a batching kettle, and then 0.5 Kg of a curing agent and 0.5 Kg of 2-methyl silicone oil were added. The components were uniformly mixed to obtain a dipping material. The curing agent was formed by mixing ethyl orthosilicate and dibutyltin dilaurate in a weight ratio of 5:1.

Example 3

(3) Preparation of a silicone mixed compound layer: 7 Kg of silicone was placed in a batching kettle, and then 2 Kg of a curing agent, 0.5 Kg of 2-methyl silicone oil and 0.5 Kg of a color paste were added. The components were uniformly mixed to obtain a dipping material. The curing agent was formed by mixing ethyl orthosilicate and dibutyltin dilaurate in a weight ratio of 4:1.

Example 4

(4) Preparation of a pretreatment solution: 7 Kg of vinyl terminated polydimethylsiloxane, 1 Kg of a silane coupling agent, 1 Kg of octamethylcyclotetrasiloxane, 0.1 Kg of a Karstedt catalyst, 0.7 Kg of water, and 0.2 Kg of a color paste were uniformly mixed, and then was heated to 40? C. and kept at this temperature for use.

Example 5

(5) Preparation of a pretreatment solution: 8 Kg of vinyl-terminated polydimethylsiloxane, 0.9 Kg of a silane coupling agent, 0.5 Kg of octamethylcyclotetrasiloxane, 0.1 Kg of a Karstedt catalyst, and 0.5 Kg of a water-based color paste were uniformly mixed, and then were heated to 40? C. and kept at this temperature for use.

Example 6

(6) Preparation of a pretreatment solution: 7 Kg of vinyl-terminated polydimethylsiloxane, 0.5 Kg of a silane coupling agent, 1 Kg of octamethylcyclotetrasiloxane, 0.3 Kg of a Karstedt catalyst, 1 Kg of water, and 0.2 Kg of a color paste were uniformly mixed, and then was heated to 50? C. and kept at this temperature for use.

Example 7

(7) A 15-pin nylon glove core or liner layer was selected. Firstly, a hand mold was preheated to 50? C., and the glove core or liner layer was put on the hand mold and kept at this temperature for 4 min. Then, a part of the glove core or liner layer to be dipped was sprayed with a pretreatment solution, and then was soaked in water at 50? C. for 8 min, dipped in a dipping tank for 1s, subjected to dispensing and spin coating in the dipping tank for 2 min and 4 min respectively, and then baked at 90? C. for 50 min, and finally was cooled and demolded to obtain a silicone product. The pretreatment solution in Example 4 was used, and the dipping material in Example 1 was used.

Example 8

(8) The pretreatment solution in Example 5 was used, the dipping material in Example 2 was used, and the other steps were the same as those in Example 7.

Example 9

(9) The pretreatment solution in Example 6 was used, the dipping material in Example 3 was used, and the other steps were the same as Example 7.

Comparative Example 1

(10) A A 15-pin nylon glove core or liner layer was selected. Firstly, a hand mold was preheated to 50? C., and the glove core or liner layer was put on the hand mold and kept at this temperature for 4 min. Then, a part of the glove core or liner layer to be dipped was sprayed with a pretreatment solution, and then was dipped in a dipping tank for 1s, subjected to dispensing and spin coating in the dipping tank for 2 min and 4 min respectively, and then baked at 90? C. for 50 min, and finally was cooled and demolded to obtain a silicone product. The pretreatment solution in Example 4 was used, and the dipping material in Example 1 was used.

Comparative Example 2

(11) The pretreatment solution in Example 5 was used, the dipping material in Example 2 was used, and the other steps were the same as those in Comparative example 1.

Comparative Example 3

(12) The pretreatment solution in Example 6 was used, the dipping material in Example 3 was used, and the other steps were the same as those in Comparative example 1.

(13) The dipping layers of the gloves prepared in Examples 7-9 and Comparative Examples 1-3 described above had the same thickness. The peeling strength of the rubber surfaces of the gloves of Examples 7-9 and Comparative Examples 1-3 were tested:

(14) TABLE-US-00001 Serial No. Thickness of Peeling Strength of Color of Rubber Surface Example 7 0.3 mm 12 N/mm two-color Example 8 0.3 mm 13 N/mm one-color Example 9 0.3 mm 13 N/mm two-color Comparative 0.3 mm 10 N/mm two-color Comparative 0.3 mm 9 N/mm one-color Comparative 0.3 mm 10 N/mm two-color