CN103417330A

CN103417330A - Foam viscous bandage and preparing method thereof

Info

Publication number: CN103417330A
Application number: CN2013103443399A
Authority: CN
Inventors: 刘军
Original assignee: JIAXING JUNTAI MEDICAL ACCESSORIES Co Ltd
Current assignee: JIAXING JUNTAI MEDICAL ACCESSORIES Co Ltd
Priority date: 2013-08-08
Filing date: 2013-08-08
Publication date: 2013-12-04

Abstract

The invention discloses a foam viscous bandage and a preparing method of the foam viscous bandage. The foam viscous bandage is composed of two insulating layers and a foam bandage layer arranged between the two insulating layers. The foam bandage layer comprises a foam basic material and self-adhesive glue coating the foam basic material. The preparing method of the foam viscous bandage comprises the steps of a) material preparation, b) glue preparation, c) gluing and d) drying. The foam viscous bandage has the advantages that the use amount of the glue is reduced when the same adhesion effect is achieved through the foam viscous bandage, the technology procedure is simplified, energy consumption is reduced, use is convenient, weight is light, the layers are not prone to looseness, the adhesion time is long, the adverse reaction of the skin is small, and the foam viscous bandage is an ideal product for replacing a traditional foam bandage and a common self-adhesive bandage. Due to the fact that foam holes formed in the foam material have a certain adhesive force, the requirement for the use amount of the glue is reduced, and raw materials are saved; the gluing and drying technology is needed just for one time in the process of production, so that the product cost is greatly reduced.

Description

A kind of foam cohesive bandage and preparation method thereof

Technical field

The present invention relates to a kind of foam cohesive bandage and preparation method thereof, belong to medical material tech field.

Background technology

Self-adhesive elastic bandage is a kind of product be of wide application; during for clinical outer fixing and wrapping; while also can be used for protecting at the volley the joints such as wrist, ankle, use; the two sides that is characterized in Elastic bandage is load self-adhesion glue all; this self-adhesive elastic bandage has and only has binder self mutually bonding, and the characteristics of other article such as ixoderm skin, hair, medicated clothing not.The material that on market, common self-adhesive elastic bandage is composited by pure silk floss or elastic non-woven cloth spraying natural rubber through rewinding, cut and form.

And conventional foam binder itself is not had viscosity, usually used as skin membrane, use, the direct stimulation of the viscose glue of the white patch of minimizing motion etc. to skin, and can avoid because of the caused blister of the friction of patch, erythema or sense of discomfort, be useful in the more sensitive people of skin or position; The pain that the position that can remove from has chaeta produces because removing patch.The foam binder of low thickness is wound around and can keeps the maximum support function of patch in phenomenons such as reducing irritated discomfort simultaneously, and makes protected position avoid clashing into.

Existing self-adhesive elastic bandage, due to material and technological reason, can not solve gluing uniformity and the ventilative comfortableness of product all the time; Because self-adhesion glue is all adhered on two sides, so feel is partially hard, with contact skin, foreign body sensation is arranged.

Summary of the invention

The object of the invention is to solve the problem of the existing gluing uniformity of cohesive bandage and ventilative comfortableness, provide a kind of foam cohesive bandage to solve the problems referred to above.

To achieve these goals, technical scheme of the present invention is as follows:

A kind of foam cohesive bandage comprises: two-layer sealing coat and be arranged on the foam binder layer between two-layer sealing coat, described foam binder layer comprises foam substrate and is coated on the glue layer on described foam substrate.

As a kind of preferred version, described sealing coat is a kind of in common printed paper, film release paper, silicone oil paper, Ge Laxin paper, plastic sheeting or non-woven fabrics.

As a kind of preferred version, described foam substrate is hydrophobicity open-cell polyurethane foam, and thickness is between 0.3-1.2mm; Described hydrophobicity open-cell polyurethane foam is made by the foaming mode by isocyanates and the multicomponent alcoholics compound containing 2 above active hydrogens.

A kind of method for preparing foam cohesive bandage of the present invention, comprise the steps: a) to get the raw materials ready; B) glue preparation; C) gluing; D) dry.

As a kind of preferred version, described glue is comprised of the raw material of following weight portion:

Heveatex: 100 parts;

Thickening agent: 1-20 part;

Emulsifying agent: 0.1-10 part;

Age resistor: 0.5-5 part;

Antiseptic: 0.05-8 part.

As further preferred version, described natural emulsion is the nature rubber latex that mass fraction is 35%～68%; Described nature rubber latex is a kind of in high ammonia centrifugal concentrating latex, low ammonia centrifugal concentrating latex, middle ammonia centrifugal concentrating latex.

As further preferred version, described thickening agent is one or both in inorganic thickening agent, cellulose family, polyacrylate and association type polyurethane thickener.

As further preferred version, described age resistor is at least one in thermo oxidative aging agent, antiozonant, harmful metal ion inhibitor, antifatigue, UV absorbent, freedom from cracking agent.

As further preferred version, described antiseptic is a kind of in benzoic acid and its esters, sorbic acid and its esters, parabens and benzalkonium bromide.

As further preferred version, described emulsifying agent is one or more in tween series, white oil emulsifying agent, fatty alcohol and ethylene oxide condensate, polyoxyethylene carboxylate.

Compared with prior art, cohesive bandage of the present invention is when reaching same bonding effect, the consumption of glue reduces, technological process is oversimplified, Energy Intensity Reduction, easy to use light and handy, be difficult for delamination, adhering to time length and less to the untoward reaction of skin, is the ideal product that replaces conventional foam binder and conventional self-adhering fascia.The foam hole itself had due to the foam material has certain adhesive force, to the use amount requirement meeting reduction of glue, has saved raw material, in production, only need, through a gluing drying process, also greatly reduce product cost.

The accompanying drawing explanation

The structural representation that Fig. 1 is foam cohesive bandage of the present invention;

The production technological process that Fig. 2 is foam cohesive bandage of the present invention.

The specific embodiment

The structure of foam cohesive bandage of the present invention as shown in Figure 1, comprise sealing coat 11 and lower sealing coat 12 and be arranged on sealing coat 11 and lower sealing coat 12 between foam binder layer 2, described foam binder layer 2 comprises foam substrate and is coated on the glue layer on described foam substrate.

Refer to Fig. 2, the hydrophobicity open-cell polyurethane foam that to get thickness be 0.5-1.0mm, fabric width 1.05m, expansion and contraction is 400+/-100%, hot strength be 225+/-75KPa between;

The preparation of glue: get mass fraction and be 100 parts of 35% high ammonia centrifugal concentrates and pour in agitator, add respectively in order 1 part of inorganic thickening agent, 0.1 part of emulsifying agent, 0.5 part of antiozonant and 0.05 part of mix homogeneously of benzoic acid, stir after 2 hours standby;

Hydrophobicity open-cell polyurethane foam is immersed in the glue prepared, after soaking fully, after through roller, surplus glue is gone in extruding, under the pressure roller pressure of the pull strength of 1.5kg and 2kg, import in dehydrator, toast 2-3min under 115～125 ℃, make base material, then on the two sides of base material, be covered with common printed paper, specification is cut on demand.

In sum, it is only preferred embodiment of the present invention, not be used for limiting scope of the invention process, all equalizations of doing according to the described shape of the claims in the present invention scope, structure, feature and spirit change and modify, and all should be included in claim scope of the present invention.

Claims

1. a foam cohesive bandage, is characterized in that, comprising: two-layer sealing coat and be arranged on the foam binder layer between two-layer sealing coat, described foam binder layer comprises foam substrate and is coated on the glue layer on described foam substrate.

2. foam cohesive bandage according to claim 1, is characterized in that, described sealing coat is a kind of in common printed paper, film release paper, silicone oil paper, Ge Laxin paper, plastic sheeting or non-woven fabrics.

3. foam cohesive bandage according to claim 1, is characterized in that, described foam substrate is hydrophobicity open-cell polyurethane foam, and thickness is between 0.3-1.2mm; Described hydrophobicity open-cell polyurethane foam is made by the foaming mode by isocyanates and the multicomponent alcoholics compound containing 2 above active hydrogens.

4. the preparation method of a foam cohesive bandage as claimed in claim 1, is characterized in that, comprises the steps: a) to get the raw materials ready; B) glue preparation; C) gluing; D) dry.

5. preparation method according to claim 4, is characterized in that, described glue is comprised of the raw material of following weight portion:

Heveatex: 100 parts;

Thickening agent: 1-20 part;

Emulsifying agent: 0.1-10 part;

Age resistor 0.5-5 part;

Antiseptic 0.05-8 part.

6. preparation method according to claim 5, is characterized in that, described natural emulsion is the nature rubber latex that mass fraction is 35%～68%; Described nature rubber latex is a kind of in high ammonia centrifugal concentrating latex, low ammonia centrifugal concentrating latex, middle ammonia centrifugal concentrating latex.

7. preparation method according to claim 5, is characterized in that, described thickening agent is one or both in inorganic thickening agent, cellulose family, polyacrylate and association type polyurethane thickener.

8. preparation method according to claim 5, is characterized in that, described age resistor is at least one in thermo oxidative aging agent, antiozonant, harmful metal ion inhibitor, antifatigue, UV absorbent, freedom from cracking agent.

9. preparation method according to claim 5, is characterized in that, described antiseptic is a kind of in benzoic acid and its esters, sorbic acid and its esters, parabens and benzalkonium bromide.

10. preparation method according to claim 5, is characterized in that, described emulsifying agent is one or several in tween series, white oil emulsifying agent, fatty alcohol and ethylene oxide condensate, polyoxyethylene carboxylate.