CN100381629C - Garment shape memory finishing processing method - Google Patents

Abstract

The invention discloses a ready-made clothes shape memory finishing processing method which comprises the steps of water washing, dehydration, finishing liquid preparation, finishing liquid treatment, loose drying, cold air blowing, high-temperature baking and cooling and moisture regaining, wherein the finishing liquid treatment is to prepare the finishing liquid according to 60-80% of the weight of ready-made clothes, and then the finishing liquid is sprayed on the ready-made clothes. In the invention, the amount of the prepared finishing liquid is prepared according to the weight required by the complete absorption of the finished fabric, so that the impregnation and dehydration processes in the conventional ready-made clothes finishing process can be omitted, the production equipment is reduced, the water consumption is reduced, the sewage discharge is reduced, the burden of sewage treatment is lightened, and the quality and the production efficiency of finished products are greatly improved.

Description

A kind of ready-made clothing shape memory finishing processing method

1. Technical field

The invention relates to a fabric shape memory finishing method, and more particularly relates to a method of using a spraying method to carry out shape memory finishing processing on garments.

2. Background technology

For a long time, for pure cotton, pure linen, or other cellulose fiber fabrics (clothing), it is necessary to undergo specific chemical treatment methods, so that the fabric (clothing) can still be kept smooth, straight and pleated after washing. clear effect. Since the 1990s, terms or names such as wrinkle free, form stability, shape memory, and non-irotlins, which are commonly used in textile chemistry or commercial clothing, are actually all Refers to durable non-iron finishing. The current treatment methods are roughly divided into three types: pre-cure, post-cure and windbreaker finishing (garment finishing). For the conventional non-ironing finishing process based on ready-made garments (garment pieces), the commonly used finishing process is: sewing garments - pretreatment - dipping finishing solution - centrifugal dehydration - blow ironing - pressing - baking - cooling. At present, the conventional method of use is to prepare the finishing solution in the chemical tank according to the formula requirements, and then immerse the finished garment (or piece of garment) under the liquid surface of the finishing agent, and the immersion time is about 3 minutes, depending on the specific condition of the finished garment. The thickness and other conditions are determined; then the finished garment (or garment piece) is taken out for subsequent processing; the finishing solution after the finished garment is taken out can be used continuously after adding new solution, generally 8-10 times. After the garment is taken out of the dipping solution, it is centrifugally dehydrated. The appropriate amount of liquid after dehydration depends on the concentration of the finishing agent, the fabric specification and the thickness of the fabric. At present, the factory has mastered the amount of liquid. Around 70%.

In the process of using the above-mentioned traditional garment finishing process, the garment must first be dipped or soaked in the finishing working fluid several times the weight of the garment (or piece of clothing), and then the garment that has absorbed the finishing fluid is taken out and then processed. Dehydration to control the amount of liquid in the finished garment; in fact, the processed garment (or garment piece) only needs to absorb 65-75% of its own weight of the finishing liquid. Increase the energy consumption in the drying process, and at the same time prolong the processing time and reduce labor productivity; in addition, because most of the auxiliaries used in garment finishing have low directivity with cellulose fibers, there are more chemicals remaining in the finishing solution , it is necessary to consider the continued use of the finishing liquid and the discharge of the final residual finishing liquid and the treatment of waste liquid. Therefore, this conventional garment treatment method not only has a long technological process, but also makes it difficult to control the amount of liquid in the garment and the concentration of the continuous use of the finishing liquid tank, but also increases the treatment and discharge of waste water, prolongs production time, and wastes energy. , leading to an increase in production costs; at the same time, if the amount of liquid carried by the garment and the concentration of the continuous tank of the finishing liquid are not properly controlled, it will also seriously affect the quality of the finishing product.

3. Contents of the invention

One of the objects of the present invention is to provide a finishing method for garment shape memory.

The second object of the present invention is to provide a method for carrying out shape-memory finishing of garments or garment pieces and fabrics by spraying.

This and other objects of the invention will be further illustrated by the following detailed description and description.

The garment form memory finishing processing method of the present invention comprises the steps of washing, dehydrating, preparing finishing solution, finishing solution treatment, loose drying, cold wind, high temperature baking and cooling and regaining moisture, wherein the finishing solution treatment is based on the weight of the finished garment 60-80% of the finishing liquid is prepared, and then the finishing liquid is sprayed on the garment. Preferably, the finishing solution is formulated at 70% by weight of the garment and then sprayed onto the garment. The finishing liquid is evenly sprayed in the form of spray on the finished garments that have been placed in the rotary garment dryer and rotated with the rotary garment dryer at room temperature. The rotating speed of the dryer is 10-30 rpm. After spraying, heat up to 60-80°C, and rotate the garments back and forth at a constant speed in a rotary garment dryer for 10-15 minutes.

In the present invention, the formula of finishing liquid is:

SMPU finishing agent 60-80 g/L

Catalyst 15-20 g/L

Softener FWL 20-40 g/L

Water X g/L.

Wherein: the SMPU finishing agent is a conventional, commercially available shape memory finishing agent, and of course the finishing agent described in CN-200410041397 or CN-200410049446 can also be used. The catalyst can be selected from sodium monophosphate and sodium hypophosphite, and the softener FWL is a commercially available product, which can be produced by Procter & Gamble. In the present application, the amount of water is X means that the unit is 1000 grams, except for the amount of the above-mentioned components, the balance is water.

In the present invention, the step of loose drying and cold air blowing is to dry the garments placed in the rotary garment dryer at 60-80°C until the liquid-carrying rate is less than or equal to 20%, then cool down and Apply cold air until the liquid-carrying rate of the garments placed in the rotary garment dryer is less than or equal to 10%. The temperature of high-temperature baking is 150-170 DEG C, and the time is 8-12 minutes.

The garment shape memory finishing processing method of the present invention is to directly spray about 70% of the finishing liquid of the fabric weight to be finished in the manner of uniform spraying on the finishing fabric (clothes) that has been placed in the rotating drum dryer in advance. sheet) surface, due to the uniform rotation of the tumble dryer, the fabric to be finished (clothes piece) is in uniform contact with the sprayed mist finishing liquid during the process of continuous turning in the machine, and the finishing liquid is gradually absorbed by the fiber fabric and Gradually infiltrate, when the adsorption and infiltration process of the finishing liquid is completed, the dryer will gradually heat up to the temperature required for drying, and the liquid absorption and drying process of the finished fabric can be completed directly in the dryer.

The technological process of the ready-made garment shape memory finishing processing method of the present invention is:

Fabric (garment or garment piece) washing - enzyme washing - water washing - dehydration - drying - weighing (preparation of finishing solution) - spraying finishing solution (70% of the weight of the garment) - loose drying (liquid carrying rate 20%) -Cold wind (10% liquid rate)-Ironing-High temperature baking-Cooling and regaining moisture-Packaging.

Wherein, the water washing is water washing at 45°C, once every 5 minutes, enzyme washing at 45°C, 5 minutes, pH 5, biological enzyme (liquid, commonly used) 4 g/L, water washing at 45°C, three times for 2 minutes, and then Dehydration, drying at 70°C and weighing. Then prepare the shape memory finishing working solution (determine the concentration range of the spraying finishing working solution according to the finishing requirements). Draw the above-mentioned finishing solution of 70% of the weight of the garment (garment piece) that has been accurately weighed, and place it in a rotary dryer with a spray device. When the dryer rotates slowly, spray the finishing solution evenly on the Placed on the garments (garment pieces) in the rotary garment dryer, it can be sprayed on a single piece, or directly sprayed in stages, until all the finishing liquid is sprayed; then, at room temperature, set the temperature to 70 ℃, according to the conventional method, let the garments sprayed with adsorption finishing liquid reciprocate at a constant speed in the rotary garment dryer, so that the finishing liquid adsorbed on the surface of the garments will gradually become uniform with the uniform rotation of the rotary garment dryer. It is absorbed by the fiber fabric and gradually diffused and distributed in the fiber tissue of the garment. The running time and speed vary with the thickness of the garment or the tightness of the fabric tissue. Generally, it can be selected between 10-15 minutes.

Dry the garments (pieces) placed in the rotary garment dryer at 70°C until the liquid retention rate drops to 20%; then cool down and blow cold air until the garments placed in the rotary garment dryer (Clothing piece) until the liquid-carrying rate drops to 10%; Then take out the ready-made clothes (clothing piece) in the rotary clothes drying machine, carry out follow-up ironing and high-temperature setting. Said method can be blown and ironed with normal pressure steam, which takes about 30 seconds for each garment, and can also be ironed with a pressing machine. High-temperature shaping (baking) can use various types of baking machines, and can use electricity, coal gas, liquefied petroleum gas, etc. as heat sources for heating. 150-170°C for 8-12 minutes. After baking, cool naturally for about 10-12 hours to room temperature or 20-30°C; cooling and moisture absorption can also be carried out in a constant temperature and humidity room equipped with air-conditioning to obtain a good feel and high strength.

In the clothing form memory finishing processing method of the present invention, can use the drying machine that spraying device is housed in the door center of rotary clothing drying machine. The spraying and liquid feeding device can be an ordinary agricultural sprayer, or a modified fixed nozzle placed in the center of the dryer door, and it can be connected with a liquid storage device with a compression system fixed on the top of the dryer. The tanks are connected by rubber tubes. The dryer used in the present invention can be a common tumbler dryer currently available on the market, or a modified one with an automatic weighing system control device and a central position in the dryer door. Rotary dryer with fixed nozzle.

Other equipments involved in the present invention are commonly used equipments in the garment finishing and processing industry at present, so they will not be introduced here.

In the present invention, since the dosage of the configured finishing liquid is prepared based on the weight required for the complete absorption of the finished fabric, the dipping and dehydrating processes in the conventional garment finishing process can be omitted, production equipment can be reduced, and water consumption can be reduced. It can reduce the amount of sewage discharge and reduce the burden of sewage treatment, thereby reducing the consumption of finishing chemicals, saving energy consumption in the drying process, shortening production time, improving production efficiency, and solving the repeatability problem in mass production. It greatly improves the quality and production efficiency of finishing products.

All raw materials and the like used in the present invention are conventionally used and commercially available. In the present invention, unless otherwise specified, all amounts and percentages are in weight units.

The present invention will be specifically described below in conjunction with examples. It can be known from common technical knowledge that the present invention can be realized through other embodiments without departing from its spirit or essential features. Accordingly, the following embodiments are in all respects illustrative and not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are embraced by the present invention.

Detailed ways

Example 1

1. Fabric specifications: pure cotton twill yarn (brown) garment pieces (35×29 cm), trousers (ready-made garments)

2. Process flow:

Water washing-enzyme washing-enzyme washing-dehydration-drying (70°C)-weighing-dosing-spraying finishing solution (70% of the weight of the garment)-rotary drying-pressing-high temperature baking

3. Process conditions:

3.1. Water washing: 45°C, once every 5 minutes;

3.2. Enzyme washing: 45°C, 5 minutes, PH=5, biological enzyme (liquid) 4 g/L, 45°C, 2 minutes three times;

4. Dehydration, drying (70°C), weighing;

5. Prescription of finishing solution:

SMPU finishing agent 70 g/L

Sodium Monophosphate 17.5 g/L

Softener FWL 30 g/L

Water 882.5 g/L

Absorb the required finishing solution according to 70% of the weight of the accurately weighed garment (garment piece), and directly add it to the spray liquid storage tank on the top of the dryer. After the dryer rotates slowly, turn on the switch of the spray device to make the spray The finishing liquid in the liquid storage tank is evenly sprayed on the surface of the garment (or garment piece) placed in the rotating state, and the dryer continues to rotate for 12-15 minutes after the spraying is completed, so that the finishing liquid is uniformly covered by the garment (or garment piece) adsorption and penetration.

6. Loose drying and cold air treatment

Dry the garments (garment pieces) placed in the tumbler-type garment dryer at 70-80°C until the liquid-carrying rate is 20% (fabric weight); then cool down and blow cold air until the tumbler-type garments are dried The liquid-carrying rate of the garments (pieces) in the machine is up to 10%; then take out the garments (pieces) in the tumbler type garment dryer for subsequent ironing and high-temperature setting.

7. Ironing and high temperature setting

It takes about 30 seconds for each garment (or piece of clothing) to be ironed with atmospheric pressure steam, or it can be pressed with a pressing machine. Baking adopts an electric baking machine. The baking temperature and time are determined according to the specifications, structure, thickness and finishing requirements of the garment, generally at 150-170°C for 8-12 minutes.

8. Cooling

Cool naturally after baking for about 10-12 hours, then cool to room temperature or 20-30°C to obtain good hand feeling and high strength.

Claims (7)

1. shape memory finishing processing method for slopwork, it is characterized in that comprising that washing, dehydration, preparation dressing liquid, dressing liquid are handled, loose formula is dried, beat cold wind, high temperature bakes and cool off the moisture regain step, wherein said dressing liquid processing is the 60-80% preparation dressing liquid by ready-made clothes weight, then dressing liquid is sprayed onto on the ready-made clothes, described dressing liquid prescription is:

SMPU finishing agent 60-80 grams per liter

Catalyst 15-20 grams per liter

Softener FWL 20-40 grams per liter

Excess water, wherein catalyst is selected from sodium monophosphate and sodium hypophosphite.

2. shape memory finishing processing method for slopwork according to claim 1 is characterized in that it is to prepare dressing liquid by 70% of ready-made clothes weight that described dressing liquid is handled, and is sprayed onto dressing liquid on the ready-made clothes then.

3. shape memory finishing processing method for slopwork according to claim 1 and 2, it is characterized in that dressing liquid at ambient temperature, mode with spraying all evenly is sprayed on the ready-made clothes that has placed in the rotary ready-made clothes dryer with rotary ready-made clothes dryer rotation, and the rotating speed of dryer is 10-30 rev/min.

4. shape memory finishing processing method for slopwork according to claim 3, it is characterized in that spraying finish after, be warming up to 60-80 ℃, ready-made clothes is done reciprocal rotation in mode at the uniform velocity in rotary ready-made clothes dryer, the time is 10-15 minute.

5. shape memory finishing processing method for slopwork according to claim 1, it is characterized in that described loose formula oven dry and beat the cold wind step be with place ready-made clothes in the rotary ready-made clothes dryer under 60-80 ℃ of condition, dry to liquid carrying rate smaller or equal to 20%, lower the temperature then and beat cold wind, the liquid carrying rate of the ready-made clothes in placing rotary ready-made clothes dryer is smaller or equal to 10%.

6. shape memory finishing processing method for slopwork according to claim 1 is characterized in that the temperature that described high temperature bakes is 150-170 ℃, and the time is 8-12 minute.

7. shape memory finishing processing method for slopwork according to claim 1 is characterized in that described ready-made clothes comprises ready-made clothes or becomes garment piece.