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Preparation method of DMF-free environment-friendly microfiber leather

An environmental protection and airflow control technology, applied in fiber treatment, improved handle fiber, textile material treatment, etc., can solve the problems of human body damage, harm to human health, easy to exceed the standard content, etc., to improve production efficiency and shorten immersion time , the effect of simple operation

Active Publication Date: 2021-06-04
KEYI FUJIAN MICROFIBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]At present, the water-based PU in the traditional water-based superfiber raw materials contains a certain amount of harmful solvents such as toluene, DMF, etc., which are easy to cause damage to the human body; moreover, in the production process , there will be a certain amount of harmful gas emissions, and the content of DMF and toluene in the finished product will easily exceed the standard, which will endanger human health and needs further improvement

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] A preparation method of zero DMF environment-friendly ultra-fiber bass, comprising the following steps:

[0027] Step 1, slurry rolling: Pour the stirred slurry evenly on the base cloth, and then pass through two squeeze rollers to make the slurry on the base cloth penetrate into the base cloth, and then pass through the oven, at 100-140°C down drying;

[0028] Step 2, base fabric opening: soak the base fabric prepared in step 1 in a trough containing fiber opening lye for 6-8 minutes, control the liquid content of the base fabric at 80-90%, and send it into the softener. Control the airflow to slap and open the fibers of the base cloth, the wind force is controlled at 45-50Pa / m, the slapping time is controlled at 20-30min, and the airflow temperature is controlled at 30-80°C. Among them, the airflow slapping control is as follows:

[0029] In the first stage, the air temperature is raised from room temperature to 30°C, and the wind beats for 10-15 minutes;

[0030] I...

Embodiment 1

[0040] A preparation method of zero DMF environment-friendly ultra-fiber bass, comprising the following steps:

[0041] Step 1, slurry rolling: Pour the stirred slurry evenly on the base fabric, and then pass through two squeeze rollers to make the slurry on the base fabric penetrate into the base fabric, and then pass through an oven and dry at 100°C Dry;

[0042] Step 2, base fabric opening: Soak the base fabric prepared in step 1 in a trough containing fiber opening lye for 6 minutes, control the liquid content of the base fabric at 90%, send it into the softener, and control the airflow to the base fabric. The cloth is slapped to open the fiber, the wind force is controlled at 45Pa / m, the slapping time is controlled at 30min, and the airflow temperature is controlled at 30-80°C. Among them, the airflow slapping control is as follows:

[0043] In the first stage, the temperature of the airflow is raised from room temperature to 30°C, and the wind beats for 15 minutes;

[...

Embodiment 2

[0054] A preparation method of zero DMF environment-friendly ultra-fiber bass, comprising the following steps:

[0055] Step 1, slurry rolling: Pour the stirred slurry evenly on the base fabric, and then pass through two squeeze rollers to make the slurry on the base fabric penetrate into the base fabric, and then pass through an oven and dry at 140°C Dry;

[0056] Step 2, base fabric opening: Soak the base fabric prepared in step 1 in the trough containing fiber opening lye for 8 minutes, control the liquid content of the base fabric at 80%, send it into the softener, and control the airflow to the base fabric. The cloth is slapped to open the fiber, the wind force is controlled at 50Pa / m, the slapping time is controlled at 20min, and the air temperature is controlled at 30-80°C. Among them, the air slapping control is as follows:

[0057] In the first stage, the temperature of the airflow is raised from room temperature to 30°C, and the wind beats for 10 minutes;

[0058] ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a preparation method of DMF-free environment-friendly microfiber leather. The method comprises the following steps of 1, performing sizing agent rolling: uniformly pouring a stirred sizing agent on base cloth, enabling the sizing agent on the base cloth to permeate into the base cloth through two extrusion rollers, and drying the base cloth in a drying oven at 100-140 DEG C; 2, splitting the base cloth; 3, oiling the base cloth; and 4, softening the base cloth. In the step 1, the sizing agent is composed of the following raw materials in parts by weight of 100 parts of high-solid resin, 5-10 parts of propylene glycol methyl ether acetate, 0.5-1 part of a flatting agent and 12-16 parts of a cross-linking agent. The preparation method of the microfiber leather is changed, the components of the sizing agent are limited, the sizing agent is enabled not to contain an organic solvent DMF, wet solidification is not needed, the whole operation is simple, and the microfiber leather is healthy and environmentally friendly.

Description

technical field [0001] The invention belongs to the field of preparation of microfiber basses, and in particular relates to a preparation method of zero-DMF environment-friendly superfiber basses. Background technique [0002] Microfiber leather is a new type of high-grade artificial leather made of extremely fine fibers, which can be used in various fields such as shoes, bags, furniture, etc., and the imitation leather effect is realistic. With the improvement and progress of leather production technology, people's requirements for quality are also rising. Especially in recent years, with the development of imitation leather, the market demand for microfiber close to genuine leather is surging. [0003] At present, the water-based PU in the traditional water-based microfiber raw materials contains a certain amount of harmful solvents such as toluene, DMF, etc., which are easy to cause damage to the human body; moreover, during the production process, there will be a certain...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/00D06M13/224D06M11/38D06M13/463D06M15/53D06M15/643D06M13/262D06N3/00D06B3/10D06B15/00
CPCD06M15/00D06M13/224D06M11/38D06M13/463D06M15/53D06M15/643D06M15/6436D06M13/262D06N3/0011D06B3/10D06B15/00D06M2200/50Y02P70/62
Inventor 余双艳
Owner KEYI FUJIAN MICROFIBER CO LTD
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